[Vendor] Update go-redis to v8.5.0 (#13749)

* Update go-redis to v8.4.0

* github.com/go-redis/redis/v8  v8.4.0 -> v8.5.0

* Apply suggestions from code review

Co-authored-by: zeripath <art27@cantab.net>

* TODO

* Use the Queue termination channel as the default context for pushes

Signed-off-by: Andrew Thornton <art27@cantab.net>

* missed one

Signed-off-by: Andrew Thornton <art27@cantab.net>

Co-authored-by: zeripath <art27@cantab.net>

65 files changed, 6335 insertions, 4868 deletions

diff --git a/vendor/github.com/dgryski/go-rendezvous/LICENSE b/vendor/github.com/dgryski/go-rendezvous/LICENSE
new file mode 100644
index 0000000000..22080f736a
--- /dev/null
+++ b/vendor/github.com/dgryski/go-rendezvous/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2017-2020 Damian Gryski <damian@gryski.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/vendor/github.com/dgryski/go-rendezvous/rdv.go b/vendor/github.com/dgryski/go-rendezvous/rdv.go
new file mode 100644
index 0000000000..7a6f8203c6
--- /dev/null
+++ b/vendor/github.com/dgryski/go-rendezvous/rdv.go
@@ -0,0 +1,79 @@
+package rendezvous
+
+type Rendezvous struct {
+	nodes map[string]int
+	nstr  []string
+	nhash []uint64
+	hash  Hasher
+}
+
+type Hasher func(s string) uint64
+
+func New(nodes []string, hash Hasher) *Rendezvous {
+	r := &Rendezvous{
+		nodes: make(map[string]int, len(nodes)),
+		nstr:  make([]string, len(nodes)),
+		nhash: make([]uint64, len(nodes)),
+		hash:  hash,
+	}
+
+	for i, n := range nodes {
+		r.nodes[n] = i
+		r.nstr[i] = n
+		r.nhash[i] = hash(n)
+	}
+
+	return r
+}
+
+func (r *Rendezvous) Lookup(k string) string {
+	// short-circuit if we're empty
+	if len(r.nodes) == 0 {
+		return ""
+	}
+
+	khash := r.hash(k)
+
+	var midx int
+	var mhash = xorshiftMult64(khash ^ r.nhash[0])
+
+	for i, nhash := range r.nhash[1:] {
+		if h := xorshiftMult64(khash ^ nhash); h > mhash {
+			midx = i + 1
+			mhash = h
+		}
+	}
+
+	return r.nstr[midx]
+}
+
+func (r *Rendezvous) Add(node string) {
+	r.nodes[node] = len(r.nstr)
+	r.nstr = append(r.nstr, node)
+	r.nhash = append(r.nhash, r.hash(node))
+}
+
+func (r *Rendezvous) Remove(node string) {
+	// find index of node to remove
+	nidx := r.nodes[node]
+
+	// remove from the slices
+	l := len(r.nstr)
+	r.nstr[nidx] = r.nstr[l]
+	r.nstr = r.nstr[:l]
+
+	r.nhash[nidx] = r.nhash[l]
+	r.nhash = r.nhash[:l]
+
+	// update the map
+	delete(r.nodes, node)
+	moved := r.nstr[nidx]
+	r.nodes[moved] = nidx
+}
+
+func xorshiftMult64(x uint64) uint64 {
+	x ^= x >> 12 // a
+	x ^= x << 25 // b
+	x ^= x >> 27 // c
+	return x * 2685821657736338717
+}
diff --git a/vendor/github.com/go-redis/redis/v7/.travis.yml b/vendor/github.com/go-redis/redis/v7/.travis.yml
deleted file mode 100644
index 3f93932bc8..0000000000
--- a/vendor/github.com/go-redis/redis/v7/.travis.yml
+++ /dev/null
@@ -1,22 +0,0 @@
-dist: xenial
-language: go
-
-services:
-  - redis-server
-
-go:
-  - 1.12.x
-  - 1.13.x
-  - tip
-
-matrix:
-  allow_failures:
-    - go: tip
-
-env:
-  - GO111MODULE=on
-
-go_import_path: github.com/go-redis/redis
-
-before_install:
-  - curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | sh -s -- -b $(go env GOPATH)/bin v1.21.0
diff --git a/vendor/github.com/go-redis/redis/v7/CHANGELOG.md b/vendor/github.com/go-redis/redis/v7/CHANGELOG.md
deleted file mode 100644
index bd4eccff24..0000000000
--- a/vendor/github.com/go-redis/redis/v7/CHANGELOG.md
+++ /dev/null
@@ -1,46 +0,0 @@
-# Changelog
-
-## v7.2
-
-- Existing `HMSet` is renamed to `HSet` and old deprecated `HMSet` is restored for Redis 3 users.
-
-## v7.1
-
-- Existing `Cmd.String` is renamed to `Cmd.Text`. New `Cmd.String` implements `fmt.Stringer` interface.
-
-## v7
-
-- *Important*. Tx.Pipeline now returns a non-transactional pipeline. Use Tx.TxPipeline for a transactional pipeline.
-- WrapProcess is replaced with more convenient AddHook that has access to context.Context.
-- WithContext now can not be used to create a shallow copy of the client.
-- New methods ProcessContext, DoContext, and ExecContext.
-- Client respects Context.Deadline when setting net.Conn deadline.
-- Client listens on Context.Done while waiting for a connection from the pool and returns an error when context context is cancelled.
-- Add PubSub.ChannelWithSubscriptions that sends `*Subscription` in addition to `*Message` to allow detecting reconnections.
-- `time.Time` is now marshalled in RFC3339 format. `rdb.Get("foo").Time()` helper is added to parse the time.
-- `SetLimiter` is removed and added `Options.Limiter` instead.
-- `HMSet` is deprecated as of Redis v4.
-
-## v6.15
-
-- Cluster and Ring pipelines process commands for each node in its own goroutine.
-
-## 6.14
-
-- Added Options.MinIdleConns.
-- Added Options.MaxConnAge.
-- PoolStats.FreeConns is renamed to PoolStats.IdleConns.
-- Add Client.Do to simplify creating custom commands.
-- Add Cmd.String, Cmd.Int, Cmd.Int64, Cmd.Uint64, Cmd.Float64, and Cmd.Bool helpers.
-- Lower memory usage.
-
-## v6.13
-
-- Ring got new options called `HashReplicas` and `Hash`. It is recommended to set `HashReplicas = 1000` for better keys distribution between shards.
-- Cluster client was optimized to use much less memory when reloading cluster state.
-- PubSub.ReceiveMessage is re-worked to not use ReceiveTimeout so it does not lose data when timeout occurres. In most cases it is recommended to use PubSub.Channel instead.
-- Dialer.KeepAlive is set to 5 minutes by default.
-
-## v6.12
-
-- ClusterClient got new option called `ClusterSlots` which allows to build cluster of normal Redis Servers that don't have cluster mode enabled. See https://godoc.org/github.com/go-redis/redis#example-NewClusterClient--ManualSetup
diff --git a/vendor/github.com/go-redis/redis/v7/README.md b/vendor/github.com/go-redis/redis/v7/README.md
deleted file mode 100644
index 0fbb506ead..0000000000
--- a/vendor/github.com/go-redis/redis/v7/README.md
+++ /dev/null
@@ -1,128 +0,0 @@
-# Redis client for Golang
-
-[![Build Status](https://travis-ci.org/go-redis/redis.png?branch=master)](https://travis-ci.org/go-redis/redis)
-[![GoDoc](https://godoc.org/github.com/go-redis/redis?status.svg)](https://godoc.org/github.com/go-redis/redis)
-[![Airbrake](https://img.shields.io/badge/kudos-airbrake.io-orange.svg)](https://airbrake.io)
-
-Supports:
-
-- Redis 3 commands except QUIT, MONITOR, SLOWLOG and SYNC.
-- Automatic connection pooling with [circuit breaker](https://en.wikipedia.org/wiki/Circuit_breaker_design_pattern) support.
-- [Pub/Sub](https://godoc.org/github.com/go-redis/redis#PubSub).
-- [Transactions](https://godoc.org/github.com/go-redis/redis#example-Client-TxPipeline).
-- [Pipeline](https://godoc.org/github.com/go-redis/redis#example-Client-Pipeline) and [TxPipeline](https://godoc.org/github.com/go-redis/redis#example-Client-TxPipeline).
-- [Scripting](https://godoc.org/github.com/go-redis/redis#Script).
-- [Timeouts](https://godoc.org/github.com/go-redis/redis#Options).
-- [Redis Sentinel](https://godoc.org/github.com/go-redis/redis#NewFailoverClient).
-- [Redis Cluster](https://godoc.org/github.com/go-redis/redis#NewClusterClient).
-- [Cluster of Redis Servers](https://godoc.org/github.com/go-redis/redis#example-NewClusterClient--ManualSetup) without using cluster mode and Redis Sentinel.
-- [Ring](https://godoc.org/github.com/go-redis/redis#NewRing).
-- [Instrumentation](https://godoc.org/github.com/go-redis/redis#ex-package--Instrumentation).
-- [Cache friendly](https://github.com/go-redis/cache).
-- [Rate limiting](https://github.com/go-redis/redis_rate).
-- [Distributed Locks](https://github.com/bsm/redislock).
-
-API docs: https://godoc.org/github.com/go-redis/redis.
-Examples: https://godoc.org/github.com/go-redis/redis#pkg-examples.
-
-## Installation
-
-go-redis requires a Go version with [Modules](https://github.com/golang/go/wiki/Modules) support and uses import versioning. So please make sure to initialize a Go module before installing go-redis:
-
-``` shell
-go mod init github.com/my/repo
-go get github.com/go-redis/redis/v7
-```
-
-Import:
-
-``` go
-import "github.com/go-redis/redis/v7"
-```
-
-## Quickstart
-
-``` go
-func ExampleNewClient() {
-	client := redis.NewClient(&redis.Options{
-		Addr:     "localhost:6379",
-		Password: "", // no password set
-		DB:       0,  // use default DB
-	})
-
-	pong, err := client.Ping().Result()
-	fmt.Println(pong, err)
-	// Output: PONG <nil>
-}
-
-func ExampleClient() {
-	client := redis.NewClient(&redis.Options{
-		Addr:     "localhost:6379",
-		Password: "", // no password set
-		DB:       0,  // use default DB
-	})
-	err := client.Set("key", "value", 0).Err()
-	if err != nil {
-		panic(err)
-	}
-
-	val, err := client.Get("key").Result()
-	if err != nil {
-		panic(err)
-	}
-	fmt.Println("key", val)
-
-	val2, err := client.Get("key2").Result()
-	if err == redis.Nil {
-		fmt.Println("key2 does not exist")
-	} else if err != nil {
-		panic(err)
-	} else {
-		fmt.Println("key2", val2)
-	}
-	// Output: key value
-	// key2 does not exist
-}
-```
-
-## Howto
-
-Please go through [examples](https://godoc.org/github.com/go-redis/redis#pkg-examples) to get an idea how to use this package.
-
-## Look and feel
-
-Some corner cases:
-
-``` go
-// SET key value EX 10 NX
-set, err := client.SetNX("key", "value", 10*time.Second).Result()
-
-// SORT list LIMIT 0 2 ASC
-vals, err := client.Sort("list", &redis.Sort{Offset: 0, Count: 2, Order: "ASC"}).Result()
-
-// ZRANGEBYSCORE zset -inf +inf WITHSCORES LIMIT 0 2
-vals, err := client.ZRangeByScoreWithScores("zset", &redis.ZRangeBy{
-	Min: "-inf",
-	Max: "+inf",
-	Offset: 0,
-	Count: 2,
-}).Result()
-
-// ZINTERSTORE out 2 zset1 zset2 WEIGHTS 2 3 AGGREGATE SUM
-vals, err := client.ZInterStore("out", &redis.ZStore{
-	Keys: []string{"zset1", "zset2"},
-	Weights: []int64{2, 3}
-}).Result()
-
-// EVAL "return {KEYS[1],ARGV[1]}" 1 "key" "hello"
-vals, err := client.Eval("return {KEYS[1],ARGV[1]}", []string{"key"}, "hello").Result()
-
-// custom command
-res, err := client.Do("set", "key", "value").Result()
-```
-
-## See also
-
-- [Golang PostgreSQL ORM](https://github.com/go-pg/pg)
-- [Golang msgpack](https://github.com/vmihailenco/msgpack)
-- [Golang message task queue](https://github.com/vmihailenco/taskq)
diff --git a/vendor/github.com/go-redis/redis/v7/cluster_commands.go b/vendor/github.com/go-redis/redis/v7/cluster_commands.go
deleted file mode 100644
index c9b9b9de24..0000000000
--- a/vendor/github.com/go-redis/redis/v7/cluster_commands.go
+++ /dev/null
@@ -1,22 +0,0 @@
-package redis
-
-import "sync/atomic"
-
-func (c *ClusterClient) DBSize() *IntCmd {
-	cmd := NewIntCmd("dbsize")
-	var size int64
-	err := c.ForEachMaster(func(master *Client) error {
-		n, err := master.DBSize().Result()
-		if err != nil {
-			return err
-		}
-		atomic.AddInt64(&size, n)
-		return nil
-	})
-	if err != nil {
-		cmd.SetErr(err)
-		return cmd
-	}
-	cmd.val = size
-	return cmd
-}
diff --git a/vendor/github.com/go-redis/redis/v7/commands.go b/vendor/github.com/go-redis/redis/v7/commands.go
deleted file mode 100644
index da5ceda13e..0000000000
--- a/vendor/github.com/go-redis/redis/v7/commands.go
+++ /dev/null
@@ -1,2643 +0,0 @@
-package redis
-
-import (
-	"errors"
-	"io"
-	"time"
-
-	"github.com/go-redis/redis/v7/internal"
-)
-
-func usePrecise(dur time.Duration) bool {
-	return dur < time.Second || dur%time.Second != 0
-}
-
-func formatMs(dur time.Duration) int64 {
-	if dur > 0 && dur < time.Millisecond {
-		internal.Logger.Printf(
-			"specified duration is %s, but minimal supported value is %s",
-			dur, time.Millisecond,
-		)
-	}
-	return int64(dur / time.Millisecond)
-}
-
-func formatSec(dur time.Duration) int64 {
-	if dur > 0 && dur < time.Second {
-		internal.Logger.Printf(
-			"specified duration is %s, but minimal supported value is %s",
-			dur, time.Second,
-		)
-	}
-	return int64(dur / time.Second)
-}
-
-func appendArgs(dst, src []interface{}) []interface{} {
-	if len(src) == 1 {
-		switch v := src[0].(type) {
-		case []string:
-			for _, s := range v {
-				dst = append(dst, s)
-			}
-			return dst
-		case map[string]interface{}:
-			for k, v := range v {
-				dst = append(dst, k, v)
-			}
-			return dst
-		}
-	}
-
-	dst = append(dst, src...)
-	return dst
-}
-
-type Cmdable interface {
-	Pipeline() Pipeliner
-	Pipelined(fn func(Pipeliner) error) ([]Cmder, error)
-
-	TxPipelined(fn func(Pipeliner) error) ([]Cmder, error)
-	TxPipeline() Pipeliner
-
-	Command() *CommandsInfoCmd
-	ClientGetName() *StringCmd
-	Echo(message interface{}) *StringCmd
-	Ping() *StatusCmd
-	Quit() *StatusCmd
-	Del(keys ...string) *IntCmd
-	Unlink(keys ...string) *IntCmd
-	Dump(key string) *StringCmd
-	Exists(keys ...string) *IntCmd
-	Expire(key string, expiration time.Duration) *BoolCmd
-	ExpireAt(key string, tm time.Time) *BoolCmd
-	Keys(pattern string) *StringSliceCmd
-	Migrate(host, port, key string, db int, timeout time.Duration) *StatusCmd
-	Move(key string, db int) *BoolCmd
-	ObjectRefCount(key string) *IntCmd
-	ObjectEncoding(key string) *StringCmd
-	ObjectIdleTime(key string) *DurationCmd
-	Persist(key string) *BoolCmd
-	PExpire(key string, expiration time.Duration) *BoolCmd
-	PExpireAt(key string, tm time.Time) *BoolCmd
-	PTTL(key string) *DurationCmd
-	RandomKey() *StringCmd
-	Rename(key, newkey string) *StatusCmd
-	RenameNX(key, newkey string) *BoolCmd
-	Restore(key string, ttl time.Duration, value string) *StatusCmd
-	RestoreReplace(key string, ttl time.Duration, value string) *StatusCmd
-	Sort(key string, sort *Sort) *StringSliceCmd
-	SortStore(key, store string, sort *Sort) *IntCmd
-	SortInterfaces(key string, sort *Sort) *SliceCmd
-	Touch(keys ...string) *IntCmd
-	TTL(key string) *DurationCmd
-	Type(key string) *StatusCmd
-	Scan(cursor uint64, match string, count int64) *ScanCmd
-	SScan(key string, cursor uint64, match string, count int64) *ScanCmd
-	HScan(key string, cursor uint64, match string, count int64) *ScanCmd
-	ZScan(key string, cursor uint64, match string, count int64) *ScanCmd
-	Append(key, value string) *IntCmd
-	BitCount(key string, bitCount *BitCount) *IntCmd
-	BitOpAnd(destKey string, keys ...string) *IntCmd
-	BitOpOr(destKey string, keys ...string) *IntCmd
-	BitOpXor(destKey string, keys ...string) *IntCmd
-	BitOpNot(destKey string, key string) *IntCmd
-	BitPos(key string, bit int64, pos ...int64) *IntCmd
-	BitField(key string, args ...interface{}) *IntSliceCmd
-	Decr(key string) *IntCmd
-	DecrBy(key string, decrement int64) *IntCmd
-	Get(key string) *StringCmd
-	GetBit(key string, offset int64) *IntCmd
-	GetRange(key string, start, end int64) *StringCmd
-	GetSet(key string, value interface{}) *StringCmd
-	Incr(key string) *IntCmd
-	IncrBy(key string, value int64) *IntCmd
-	IncrByFloat(key string, value float64) *FloatCmd
-	MGet(keys ...string) *SliceCmd
-	MSet(values ...interface{}) *StatusCmd
-	MSetNX(values ...interface{}) *BoolCmd
-	Set(key string, value interface{}, expiration time.Duration) *StatusCmd
-	SetBit(key string, offset int64, value int) *IntCmd
-	SetNX(key string, value interface{}, expiration time.Duration) *BoolCmd
-	SetXX(key string, value interface{}, expiration time.Duration) *BoolCmd
-	SetRange(key string, offset int64, value string) *IntCmd
-	StrLen(key string) *IntCmd
-	HDel(key string, fields ...string) *IntCmd
-	HExists(key, field string) *BoolCmd
-	HGet(key, field string) *StringCmd
-	HGetAll(key string) *StringStringMapCmd
-	HIncrBy(key, field string, incr int64) *IntCmd
-	HIncrByFloat(key, field string, incr float64) *FloatCmd
-	HKeys(key string) *StringSliceCmd
-	HLen(key string) *IntCmd
-	HMGet(key string, fields ...string) *SliceCmd
-	HSet(key string, values ...interface{}) *IntCmd
-	HMSet(key string, values ...interface{}) *BoolCmd
-	HSetNX(key, field string, value interface{}) *BoolCmd
-	HVals(key string) *StringSliceCmd
-	BLPop(timeout time.Duration, keys ...string) *StringSliceCmd
-	BRPop(timeout time.Duration, keys ...string) *StringSliceCmd
-	BRPopLPush(source, destination string, timeout time.Duration) *StringCmd
-	LIndex(key string, index int64) *StringCmd
-	LInsert(key, op string, pivot, value interface{}) *IntCmd
-	LInsertBefore(key string, pivot, value interface{}) *IntCmd
-	LInsertAfter(key string, pivot, value interface{}) *IntCmd
-	LLen(key string) *IntCmd
-	LPop(key string) *StringCmd
-	LPush(key string, values ...interface{}) *IntCmd
-	LPushX(key string, values ...interface{}) *IntCmd
-	LRange(key string, start, stop int64) *StringSliceCmd
-	LRem(key string, count int64, value interface{}) *IntCmd
-	LSet(key string, index int64, value interface{}) *StatusCmd
-	LTrim(key string, start, stop int64) *StatusCmd
-	RPop(key string) *StringCmd
-	RPopLPush(source, destination string) *StringCmd
-	RPush(key string, values ...interface{}) *IntCmd
-	RPushX(key string, values ...interface{}) *IntCmd
-	SAdd(key string, members ...interface{}) *IntCmd
-	SCard(key string) *IntCmd
-	SDiff(keys ...string) *StringSliceCmd
-	SDiffStore(destination string, keys ...string) *IntCmd
-	SInter(keys ...string) *StringSliceCmd
-	SInterStore(destination string, keys ...string) *IntCmd
-	SIsMember(key string, member interface{}) *BoolCmd
-	SMembers(key string) *StringSliceCmd
-	SMembersMap(key string) *StringStructMapCmd
-	SMove(source, destination string, member interface{}) *BoolCmd
-	SPop(key string) *StringCmd
-	SPopN(key string, count int64) *StringSliceCmd
-	SRandMember(key string) *StringCmd
-	SRandMemberN(key string, count int64) *StringSliceCmd
-	SRem(key string, members ...interface{}) *IntCmd
-	SUnion(keys ...string) *StringSliceCmd
-	SUnionStore(destination string, keys ...string) *IntCmd
-	XAdd(a *XAddArgs) *StringCmd
-	XDel(stream string, ids ...string) *IntCmd
-	XLen(stream string) *IntCmd
-	XRange(stream, start, stop string) *XMessageSliceCmd
-	XRangeN(stream, start, stop string, count int64) *XMessageSliceCmd
-	XRevRange(stream string, start, stop string) *XMessageSliceCmd
-	XRevRangeN(stream string, start, stop string, count int64) *XMessageSliceCmd
-	XRead(a *XReadArgs) *XStreamSliceCmd
-	XReadStreams(streams ...string) *XStreamSliceCmd
-	XGroupCreate(stream, group, start string) *StatusCmd
-	XGroupCreateMkStream(stream, group, start string) *StatusCmd
-	XGroupSetID(stream, group, start string) *StatusCmd
-	XGroupDestroy(stream, group string) *IntCmd
-	XGroupDelConsumer(stream, group, consumer string) *IntCmd
-	XReadGroup(a *XReadGroupArgs) *XStreamSliceCmd
-	XAck(stream, group string, ids ...string) *IntCmd
-	XPending(stream, group string) *XPendingCmd
-	XPendingExt(a *XPendingExtArgs) *XPendingExtCmd
-	XClaim(a *XClaimArgs) *XMessageSliceCmd
-	XClaimJustID(a *XClaimArgs) *StringSliceCmd
-	XTrim(key string, maxLen int64) *IntCmd
-	XTrimApprox(key string, maxLen int64) *IntCmd
-	XInfoGroups(key string) *XInfoGroupsCmd
-	BZPopMax(timeout time.Duration, keys ...string) *ZWithKeyCmd
-	BZPopMin(timeout time.Duration, keys ...string) *ZWithKeyCmd
-	ZAdd(key string, members ...*Z) *IntCmd
-	ZAddNX(key string, members ...*Z) *IntCmd
-	ZAddXX(key string, members ...*Z) *IntCmd
-	ZAddCh(key string, members ...*Z) *IntCmd
-	ZAddNXCh(key string, members ...*Z) *IntCmd
-	ZAddXXCh(key string, members ...*Z) *IntCmd
-	ZIncr(key string, member *Z) *FloatCmd
-	ZIncrNX(key string, member *Z) *FloatCmd
-	ZIncrXX(key string, member *Z) *FloatCmd
-	ZCard(key string) *IntCmd
-	ZCount(key, min, max string) *IntCmd
-	ZLexCount(key, min, max string) *IntCmd
-	ZIncrBy(key string, increment float64, member string) *FloatCmd
-	ZInterStore(destination string, store *ZStore) *IntCmd
-	ZPopMax(key string, count ...int64) *ZSliceCmd
-	ZPopMin(key string, count ...int64) *ZSliceCmd
-	ZRange(key string, start, stop int64) *StringSliceCmd
-	ZRangeWithScores(key string, start, stop int64) *ZSliceCmd
-	ZRangeByScore(key string, opt *ZRangeBy) *StringSliceCmd
-	ZRangeByLex(key string, opt *ZRangeBy) *StringSliceCmd
-	ZRangeByScoreWithScores(key string, opt *ZRangeBy) *ZSliceCmd
-	ZRank(key, member string) *IntCmd
-	ZRem(key string, members ...interface{}) *IntCmd
-	ZRemRangeByRank(key string, start, stop int64) *IntCmd
-	ZRemRangeByScore(key, min, max string) *IntCmd
-	ZRemRangeByLex(key, min, max string) *IntCmd
-	ZRevRange(key string, start, stop int64) *StringSliceCmd
-	ZRevRangeWithScores(key string, start, stop int64) *ZSliceCmd
-	ZRevRangeByScore(key string, opt *ZRangeBy) *StringSliceCmd
-	ZRevRangeByLex(key string, opt *ZRangeBy) *StringSliceCmd
-	ZRevRangeByScoreWithScores(key string, opt *ZRangeBy) *ZSliceCmd
-	ZRevRank(key, member string) *IntCmd
-	ZScore(key, member string) *FloatCmd
-	ZUnionStore(dest string, store *ZStore) *IntCmd
-	PFAdd(key string, els ...interface{}) *IntCmd
-	PFCount(keys ...string) *IntCmd
-	PFMerge(dest string, keys ...string) *StatusCmd
-	BgRewriteAOF() *StatusCmd
-	BgSave() *StatusCmd
-	ClientKill(ipPort string) *StatusCmd
-	ClientKillByFilter(keys ...string) *IntCmd
-	ClientList() *StringCmd
-	ClientPause(dur time.Duration) *BoolCmd
-	ClientID() *IntCmd
-	ConfigGet(parameter string) *SliceCmd
-	ConfigResetStat() *StatusCmd
-	ConfigSet(parameter, value string) *StatusCmd
-	ConfigRewrite() *StatusCmd
-	DBSize() *IntCmd
-	FlushAll() *StatusCmd
-	FlushAllAsync() *StatusCmd
-	FlushDB() *StatusCmd
-	FlushDBAsync() *StatusCmd
-	Info(section ...string) *StringCmd
-	LastSave() *IntCmd
-	Save() *StatusCmd
-	Shutdown() *StatusCmd
-	ShutdownSave() *StatusCmd
-	ShutdownNoSave() *StatusCmd
-	SlaveOf(host, port string) *StatusCmd
-	Time() *TimeCmd
-	Eval(script string, keys []string, args ...interface{}) *Cmd
-	EvalSha(sha1 string, keys []string, args ...interface{}) *Cmd
-	ScriptExists(hashes ...string) *BoolSliceCmd
-	ScriptFlush() *StatusCmd
-	ScriptKill() *StatusCmd
-	ScriptLoad(script string) *StringCmd
-	DebugObject(key string) *StringCmd
-	Publish(channel string, message interface{}) *IntCmd
-	PubSubChannels(pattern string) *StringSliceCmd
-	PubSubNumSub(channels ...string) *StringIntMapCmd
-	PubSubNumPat() *IntCmd
-	ClusterSlots() *ClusterSlotsCmd
-	ClusterNodes() *StringCmd
-	ClusterMeet(host, port string) *StatusCmd
-	ClusterForget(nodeID string) *StatusCmd
-	ClusterReplicate(nodeID string) *StatusCmd
-	ClusterResetSoft() *StatusCmd
-	ClusterResetHard() *StatusCmd
-	ClusterInfo() *StringCmd
-	ClusterKeySlot(key string) *IntCmd
-	ClusterGetKeysInSlot(slot int, count int) *StringSliceCmd
-	ClusterCountFailureReports(nodeID string) *IntCmd
-	ClusterCountKeysInSlot(slot int) *IntCmd
-	ClusterDelSlots(slots ...int) *StatusCmd
-	ClusterDelSlotsRange(min, max int) *StatusCmd
-	ClusterSaveConfig() *StatusCmd
-	ClusterSlaves(nodeID string) *StringSliceCmd
-	ClusterFailover() *StatusCmd
-	ClusterAddSlots(slots ...int) *StatusCmd
-	ClusterAddSlotsRange(min, max int) *StatusCmd
-	GeoAdd(key string, geoLocation ...*GeoLocation) *IntCmd
-	GeoPos(key string, members ...string) *GeoPosCmd
-	GeoRadius(key string, longitude, latitude float64, query *GeoRadiusQuery) *GeoLocationCmd
-	GeoRadiusStore(key string, longitude, latitude float64, query *GeoRadiusQuery) *IntCmd
-	GeoRadiusByMember(key, member string, query *GeoRadiusQuery) *GeoLocationCmd
-	GeoRadiusByMemberStore(key, member string, query *GeoRadiusQuery) *IntCmd
-	GeoDist(key string, member1, member2, unit string) *FloatCmd
-	GeoHash(key string, members ...string) *StringSliceCmd
-	ReadOnly() *StatusCmd
-	ReadWrite() *StatusCmd
-	MemoryUsage(key string, samples ...int) *IntCmd
-}
-
-type StatefulCmdable interface {
-	Cmdable
-	Auth(password string) *StatusCmd
-	AuthACL(username, password string) *StatusCmd
-	Select(index int) *StatusCmd
-	SwapDB(index1, index2 int) *StatusCmd
-	ClientSetName(name string) *BoolCmd
-}
-
-var _ Cmdable = (*Client)(nil)
-var _ Cmdable = (*Tx)(nil)
-var _ Cmdable = (*Ring)(nil)
-var _ Cmdable = (*ClusterClient)(nil)
-
-type cmdable func(cmd Cmder) error
-
-type statefulCmdable func(cmd Cmder) error
-
-//------------------------------------------------------------------------------
-
-func (c statefulCmdable) Auth(password string) *StatusCmd {
-	cmd := NewStatusCmd("auth", password)
-	_ = c(cmd)
-	return cmd
-}
-
-// Perform an AUTH command, using the given user and pass.
-// Should be used to authenticate the current connection with one of the connections defined in the ACL list
-// when connecting to a Redis 6.0 instance, or greater, that is using the Redis ACL system.
-func (c statefulCmdable) AuthACL(username, password string) *StatusCmd {
-	cmd := NewStatusCmd("auth", username, password)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) Echo(message interface{}) *StringCmd {
-	cmd := NewStringCmd("echo", message)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) Ping() *StatusCmd {
-	cmd := NewStatusCmd("ping")
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) Wait(numSlaves int, timeout time.Duration) *IntCmd {
-	cmd := NewIntCmd("wait", numSlaves, int(timeout/time.Millisecond))
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) Quit() *StatusCmd {
-	panic("not implemented")
-}
-
-func (c statefulCmdable) Select(index int) *StatusCmd {
-	cmd := NewStatusCmd("select", index)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c statefulCmdable) SwapDB(index1, index2 int) *StatusCmd {
-	cmd := NewStatusCmd("swapdb", index1, index2)
-	_ = c(cmd)
-	return cmd
-}
-
-//------------------------------------------------------------------------------
-
-func (c cmdable) Command() *CommandsInfoCmd {
-	cmd := NewCommandsInfoCmd("command")
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) Del(keys ...string) *IntCmd {
-	args := make([]interface{}, 1+len(keys))
-	args[0] = "del"
-	for i, key := range keys {
-		args[1+i] = key
-	}
-	cmd := NewIntCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) Unlink(keys ...string) *IntCmd {
-	args := make([]interface{}, 1+len(keys))
-	args[0] = "unlink"
-	for i, key := range keys {
-		args[1+i] = key
-	}
-	cmd := NewIntCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) Dump(key string) *StringCmd {
-	cmd := NewStringCmd("dump", key)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) Exists(keys ...string) *IntCmd {
-	args := make([]interface{}, 1+len(keys))
-	args[0] = "exists"
-	for i, key := range keys {
-		args[1+i] = key
-	}
-	cmd := NewIntCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) Expire(key string, expiration time.Duration) *BoolCmd {
-	cmd := NewBoolCmd("expire", key, formatSec(expiration))
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ExpireAt(key string, tm time.Time) *BoolCmd {
-	cmd := NewBoolCmd("expireat", key, tm.Unix())
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) Keys(pattern string) *StringSliceCmd {
-	cmd := NewStringSliceCmd("keys", pattern)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) Migrate(host, port, key string, db int, timeout time.Duration) *StatusCmd {
-	cmd := NewStatusCmd(
-		"migrate",
-		host,
-		port,
-		key,
-		db,
-		formatMs(timeout),
-	)
-	cmd.setReadTimeout(timeout)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) Move(key string, db int) *BoolCmd {
-	cmd := NewBoolCmd("move", key, db)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ObjectRefCount(key string) *IntCmd {
-	cmd := NewIntCmd("object", "refcount", key)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ObjectEncoding(key string) *StringCmd {
-	cmd := NewStringCmd("object", "encoding", key)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ObjectIdleTime(key string) *DurationCmd {
-	cmd := NewDurationCmd(time.Second, "object", "idletime", key)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) Persist(key string) *BoolCmd {
-	cmd := NewBoolCmd("persist", key)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) PExpire(key string, expiration time.Duration) *BoolCmd {
-	cmd := NewBoolCmd("pexpire", key, formatMs(expiration))
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) PExpireAt(key string, tm time.Time) *BoolCmd {
-	cmd := NewBoolCmd(
-		"pexpireat",
-		key,
-		tm.UnixNano()/int64(time.Millisecond),
-	)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) PTTL(key string) *DurationCmd {
-	cmd := NewDurationCmd(time.Millisecond, "pttl", key)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) RandomKey() *StringCmd {
-	cmd := NewStringCmd("randomkey")
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) Rename(key, newkey string) *StatusCmd {
-	cmd := NewStatusCmd("rename", key, newkey)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) RenameNX(key, newkey string) *BoolCmd {
-	cmd := NewBoolCmd("renamenx", key, newkey)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) Restore(key string, ttl time.Duration, value string) *StatusCmd {
-	cmd := NewStatusCmd(
-		"restore",
-		key,
-		formatMs(ttl),
-		value,
-	)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) RestoreReplace(key string, ttl time.Duration, value string) *StatusCmd {
-	cmd := NewStatusCmd(
-		"restore",
-		key,
-		formatMs(ttl),
-		value,
-		"replace",
-	)
-	_ = c(cmd)
-	return cmd
-}
-
-type Sort struct {
-	By            string
-	Offset, Count int64
-	Get           []string
-	Order         string
-	Alpha         bool
-}
-
-func (sort *Sort) args(key string) []interface{} {
-	args := []interface{}{"sort", key}
-	if sort.By != "" {
-		args = append(args, "by", sort.By)
-	}
-	if sort.Offset != 0 || sort.Count != 0 {
-		args = append(args, "limit", sort.Offset, sort.Count)
-	}
-	for _, get := range sort.Get {
-		args = append(args, "get", get)
-	}
-	if sort.Order != "" {
-		args = append(args, sort.Order)
-	}
-	if sort.Alpha {
-		args = append(args, "alpha")
-	}
-	return args
-}
-
-func (c cmdable) Sort(key string, sort *Sort) *StringSliceCmd {
-	cmd := NewStringSliceCmd(sort.args(key)...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) SortStore(key, store string, sort *Sort) *IntCmd {
-	args := sort.args(key)
-	if store != "" {
-		args = append(args, "store", store)
-	}
-	cmd := NewIntCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) SortInterfaces(key string, sort *Sort) *SliceCmd {
-	cmd := NewSliceCmd(sort.args(key)...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) Touch(keys ...string) *IntCmd {
-	args := make([]interface{}, len(keys)+1)
-	args[0] = "touch"
-	for i, key := range keys {
-		args[i+1] = key
-	}
-	cmd := NewIntCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) TTL(key string) *DurationCmd {
-	cmd := NewDurationCmd(time.Second, "ttl", key)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) Type(key string) *StatusCmd {
-	cmd := NewStatusCmd("type", key)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) Scan(cursor uint64, match string, count int64) *ScanCmd {
-	args := []interface{}{"scan", cursor}
-	if match != "" {
-		args = append(args, "match", match)
-	}
-	if count > 0 {
-		args = append(args, "count", count)
-	}
-	cmd := NewScanCmd(c, args...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) SScan(key string, cursor uint64, match string, count int64) *ScanCmd {
-	args := []interface{}{"sscan", key, cursor}
-	if match != "" {
-		args = append(args, "match", match)
-	}
-	if count > 0 {
-		args = append(args, "count", count)
-	}
-	cmd := NewScanCmd(c, args...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) HScan(key string, cursor uint64, match string, count int64) *ScanCmd {
-	args := []interface{}{"hscan", key, cursor}
-	if match != "" {
-		args = append(args, "match", match)
-	}
-	if count > 0 {
-		args = append(args, "count", count)
-	}
-	cmd := NewScanCmd(c, args...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ZScan(key string, cursor uint64, match string, count int64) *ScanCmd {
-	args := []interface{}{"zscan", key, cursor}
-	if match != "" {
-		args = append(args, "match", match)
-	}
-	if count > 0 {
-		args = append(args, "count", count)
-	}
-	cmd := NewScanCmd(c, args...)
-	_ = c(cmd)
-	return cmd
-}
-
-//------------------------------------------------------------------------------
-
-func (c cmdable) Append(key, value string) *IntCmd {
-	cmd := NewIntCmd("append", key, value)
-	_ = c(cmd)
-	return cmd
-}
-
-type BitCount struct {
-	Start, End int64
-}
-
-func (c cmdable) BitCount(key string, bitCount *BitCount) *IntCmd {
-	args := []interface{}{"bitcount", key}
-	if bitCount != nil {
-		args = append(
-			args,
-			bitCount.Start,
-			bitCount.End,
-		)
-	}
-	cmd := NewIntCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) bitOp(op, destKey string, keys ...string) *IntCmd {
-	args := make([]interface{}, 3+len(keys))
-	args[0] = "bitop"
-	args[1] = op
-	args[2] = destKey
-	for i, key := range keys {
-		args[3+i] = key
-	}
-	cmd := NewIntCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) BitOpAnd(destKey string, keys ...string) *IntCmd {
-	return c.bitOp("and", destKey, keys...)
-}
-
-func (c cmdable) BitOpOr(destKey string, keys ...string) *IntCmd {
-	return c.bitOp("or", destKey, keys...)
-}
-
-func (c cmdable) BitOpXor(destKey string, keys ...string) *IntCmd {
-	return c.bitOp("xor", destKey, keys...)
-}
-
-func (c cmdable) BitOpNot(destKey string, key string) *IntCmd {
-	return c.bitOp("not", destKey, key)
-}
-
-func (c cmdable) BitPos(key string, bit int64, pos ...int64) *IntCmd {
-	args := make([]interface{}, 3+len(pos))
-	args[0] = "bitpos"
-	args[1] = key
-	args[2] = bit
-	switch len(pos) {
-	case 0:
-	case 1:
-		args[3] = pos[0]
-	case 2:
-		args[3] = pos[0]
-		args[4] = pos[1]
-	default:
-		panic("too many arguments")
-	}
-	cmd := NewIntCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) BitField(key string, args ...interface{}) *IntSliceCmd {
-	a := make([]interface{}, 0, 2+len(args))
-	a = append(a, "bitfield")
-	a = append(a, key)
-	a = append(a, args...)
-	cmd := NewIntSliceCmd(a...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) Decr(key string) *IntCmd {
-	cmd := NewIntCmd("decr", key)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) DecrBy(key string, decrement int64) *IntCmd {
-	cmd := NewIntCmd("decrby", key, decrement)
-	_ = c(cmd)
-	return cmd
-}
-
-// Redis `GET key` command. It returns redis.Nil error when key does not exist.
-func (c cmdable) Get(key string) *StringCmd {
-	cmd := NewStringCmd("get", key)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) GetBit(key string, offset int64) *IntCmd {
-	cmd := NewIntCmd("getbit", key, offset)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) GetRange(key string, start, end int64) *StringCmd {
-	cmd := NewStringCmd("getrange", key, start, end)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) GetSet(key string, value interface{}) *StringCmd {
-	cmd := NewStringCmd("getset", key, value)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) Incr(key string) *IntCmd {
-	cmd := NewIntCmd("incr", key)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) IncrBy(key string, value int64) *IntCmd {
-	cmd := NewIntCmd("incrby", key, value)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) IncrByFloat(key string, value float64) *FloatCmd {
-	cmd := NewFloatCmd("incrbyfloat", key, value)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) MGet(keys ...string) *SliceCmd {
-	args := make([]interface{}, 1+len(keys))
-	args[0] = "mget"
-	for i, key := range keys {
-		args[1+i] = key
-	}
-	cmd := NewSliceCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-// MSet is like Set but accepts multiple values:
-//   - MSet("key1", "value1", "key2", "value2")
-//   - MSet([]string{"key1", "value1", "key2", "value2"})
-//   - MSet(map[string]interface{}{"key1": "value1", "key2": "value2"})
-func (c cmdable) MSet(values ...interface{}) *StatusCmd {
-	args := make([]interface{}, 1, 1+len(values))
-	args[0] = "mset"
-	args = appendArgs(args, values)
-	cmd := NewStatusCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-// MSetNX is like SetNX but accepts multiple values:
-//   - MSetNX("key1", "value1", "key2", "value2")
-//   - MSetNX([]string{"key1", "value1", "key2", "value2"})
-//   - MSetNX(map[string]interface{}{"key1": "value1", "key2": "value2"})
-func (c cmdable) MSetNX(values ...interface{}) *BoolCmd {
-	args := make([]interface{}, 1, 1+len(values))
-	args[0] = "msetnx"
-	args = appendArgs(args, values)
-	cmd := NewBoolCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-// Redis `SET key value [expiration]` command.
-//
-// Use expiration for `SETEX`-like behavior.
-// Zero expiration means the key has no expiration time.
-func (c cmdable) Set(key string, value interface{}, expiration time.Duration) *StatusCmd {
-	args := make([]interface{}, 3, 5)
-	args[0] = "set"
-	args[1] = key
-	args[2] = value
-	if expiration > 0 {
-		if usePrecise(expiration) {
-			args = append(args, "px", formatMs(expiration))
-		} else {
-			args = append(args, "ex", formatSec(expiration))
-		}
-	}
-	cmd := NewStatusCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) SetBit(key string, offset int64, value int) *IntCmd {
-	cmd := NewIntCmd(
-		"setbit",
-		key,
-		offset,
-		value,
-	)
-	_ = c(cmd)
-	return cmd
-}
-
-// Redis `SET key value [expiration] NX` command.
-//
-// Zero expiration means the key has no expiration time.
-func (c cmdable) SetNX(key string, value interface{}, expiration time.Duration) *BoolCmd {
-	var cmd *BoolCmd
-	if expiration == 0 {
-		// Use old `SETNX` to support old Redis versions.
-		cmd = NewBoolCmd("setnx", key, value)
-	} else {
-		if usePrecise(expiration) {
-			cmd = NewBoolCmd("set", key, value, "px", formatMs(expiration), "nx")
-		} else {
-			cmd = NewBoolCmd("set", key, value, "ex", formatSec(expiration), "nx")
-		}
-	}
-	_ = c(cmd)
-	return cmd
-}
-
-// Redis `SET key value [expiration] XX` command.
-//
-// Zero expiration means the key has no expiration time.
-func (c cmdable) SetXX(key string, value interface{}, expiration time.Duration) *BoolCmd {
-	var cmd *BoolCmd
-	if expiration == 0 {
-		cmd = NewBoolCmd("set", key, value, "xx")
-	} else {
-		if usePrecise(expiration) {
-			cmd = NewBoolCmd("set", key, value, "px", formatMs(expiration), "xx")
-		} else {
-			cmd = NewBoolCmd("set", key, value, "ex", formatSec(expiration), "xx")
-		}
-	}
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) SetRange(key string, offset int64, value string) *IntCmd {
-	cmd := NewIntCmd("setrange", key, offset, value)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) StrLen(key string) *IntCmd {
-	cmd := NewIntCmd("strlen", key)
-	_ = c(cmd)
-	return cmd
-}
-
-//------------------------------------------------------------------------------
-
-func (c cmdable) HDel(key string, fields ...string) *IntCmd {
-	args := make([]interface{}, 2+len(fields))
-	args[0] = "hdel"
-	args[1] = key
-	for i, field := range fields {
-		args[2+i] = field
-	}
-	cmd := NewIntCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) HExists(key, field string) *BoolCmd {
-	cmd := NewBoolCmd("hexists", key, field)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) HGet(key, field string) *StringCmd {
-	cmd := NewStringCmd("hget", key, field)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) HGetAll(key string) *StringStringMapCmd {
-	cmd := NewStringStringMapCmd("hgetall", key)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) HIncrBy(key, field string, incr int64) *IntCmd {
-	cmd := NewIntCmd("hincrby", key, field, incr)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) HIncrByFloat(key, field string, incr float64) *FloatCmd {
-	cmd := NewFloatCmd("hincrbyfloat", key, field, incr)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) HKeys(key string) *StringSliceCmd {
-	cmd := NewStringSliceCmd("hkeys", key)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) HLen(key string) *IntCmd {
-	cmd := NewIntCmd("hlen", key)
-	_ = c(cmd)
-	return cmd
-}
-
-// HMGet returns the values for the specified fields in the hash stored at key.
-// It returns an interface{} to distinguish between empty string and nil value.
-func (c cmdable) HMGet(key string, fields ...string) *SliceCmd {
-	args := make([]interface{}, 2+len(fields))
-	args[0] = "hmget"
-	args[1] = key
-	for i, field := range fields {
-		args[2+i] = field
-	}
-	cmd := NewSliceCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-// HSet accepts values in following formats:
-//   - HMSet("myhash", "key1", "value1", "key2", "value2")
-//   - HMSet("myhash", []string{"key1", "value1", "key2", "value2"})
-//   - HMSet("myhash", map[string]interface{}{"key1": "value1", "key2": "value2"})
-//
-// Note that it requires Redis v4 for multiple field/value pairs support.
-func (c cmdable) HSet(key string, values ...interface{}) *IntCmd {
-	args := make([]interface{}, 2, 2+len(values))
-	args[0] = "hset"
-	args[1] = key
-	args = appendArgs(args, values)
-	cmd := NewIntCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-// HMSet is a deprecated version of HSet left for compatibility with Redis 3.
-func (c cmdable) HMSet(key string, values ...interface{}) *BoolCmd {
-	args := make([]interface{}, 2, 2+len(values))
-	args[0] = "hmset"
-	args[1] = key
-	args = appendArgs(args, values)
-	cmd := NewBoolCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) HSetNX(key, field string, value interface{}) *BoolCmd {
-	cmd := NewBoolCmd("hsetnx", key, field, value)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) HVals(key string) *StringSliceCmd {
-	cmd := NewStringSliceCmd("hvals", key)
-	_ = c(cmd)
-	return cmd
-}
-
-//------------------------------------------------------------------------------
-
-func (c cmdable) BLPop(timeout time.Duration, keys ...string) *StringSliceCmd {
-	args := make([]interface{}, 1+len(keys)+1)
-	args[0] = "blpop"
-	for i, key := range keys {
-		args[1+i] = key
-	}
-	args[len(args)-1] = formatSec(timeout)
-	cmd := NewStringSliceCmd(args...)
-	cmd.setReadTimeout(timeout)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) BRPop(timeout time.Duration, keys ...string) *StringSliceCmd {
-	args := make([]interface{}, 1+len(keys)+1)
-	args[0] = "brpop"
-	for i, key := range keys {
-		args[1+i] = key
-	}
-	args[len(keys)+1] = formatSec(timeout)
-	cmd := NewStringSliceCmd(args...)
-	cmd.setReadTimeout(timeout)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) BRPopLPush(source, destination string, timeout time.Duration) *StringCmd {
-	cmd := NewStringCmd(
-		"brpoplpush",
-		source,
-		destination,
-		formatSec(timeout),
-	)
-	cmd.setReadTimeout(timeout)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) LIndex(key string, index int64) *StringCmd {
-	cmd := NewStringCmd("lindex", key, index)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) LInsert(key, op string, pivot, value interface{}) *IntCmd {
-	cmd := NewIntCmd("linsert", key, op, pivot, value)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) LInsertBefore(key string, pivot, value interface{}) *IntCmd {
-	cmd := NewIntCmd("linsert", key, "before", pivot, value)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) LInsertAfter(key string, pivot, value interface{}) *IntCmd {
-	cmd := NewIntCmd("linsert", key, "after", pivot, value)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) LLen(key string) *IntCmd {
-	cmd := NewIntCmd("llen", key)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) LPop(key string) *StringCmd {
-	cmd := NewStringCmd("lpop", key)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) LPush(key string, values ...interface{}) *IntCmd {
-	args := make([]interface{}, 2, 2+len(values))
-	args[0] = "lpush"
-	args[1] = key
-	args = appendArgs(args, values)
-	cmd := NewIntCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) LPushX(key string, values ...interface{}) *IntCmd {
-	args := make([]interface{}, 2, 2+len(values))
-	args[0] = "lpushx"
-	args[1] = key
-	args = appendArgs(args, values)
-	cmd := NewIntCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) LRange(key string, start, stop int64) *StringSliceCmd {
-	cmd := NewStringSliceCmd(
-		"lrange",
-		key,
-		start,
-		stop,
-	)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) LRem(key string, count int64, value interface{}) *IntCmd {
-	cmd := NewIntCmd("lrem", key, count, value)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) LSet(key string, index int64, value interface{}) *StatusCmd {
-	cmd := NewStatusCmd("lset", key, index, value)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) LTrim(key string, start, stop int64) *StatusCmd {
-	cmd := NewStatusCmd(
-		"ltrim",
-		key,
-		start,
-		stop,
-	)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) RPop(key string) *StringCmd {
-	cmd := NewStringCmd("rpop", key)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) RPopLPush(source, destination string) *StringCmd {
-	cmd := NewStringCmd("rpoplpush", source, destination)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) RPush(key string, values ...interface{}) *IntCmd {
-	args := make([]interface{}, 2, 2+len(values))
-	args[0] = "rpush"
-	args[1] = key
-	args = appendArgs(args, values)
-	cmd := NewIntCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) RPushX(key string, values ...interface{}) *IntCmd {
-	args := make([]interface{}, 2, 2+len(values))
-	args[0] = "rpushx"
-	args[1] = key
-	args = appendArgs(args, values)
-	cmd := NewIntCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-//------------------------------------------------------------------------------
-
-func (c cmdable) SAdd(key string, members ...interface{}) *IntCmd {
-	args := make([]interface{}, 2, 2+len(members))
-	args[0] = "sadd"
-	args[1] = key
-	args = appendArgs(args, members)
-	cmd := NewIntCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) SCard(key string) *IntCmd {
-	cmd := NewIntCmd("scard", key)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) SDiff(keys ...string) *StringSliceCmd {
-	args := make([]interface{}, 1+len(keys))
-	args[0] = "sdiff"
-	for i, key := range keys {
-		args[1+i] = key
-	}
-	cmd := NewStringSliceCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) SDiffStore(destination string, keys ...string) *IntCmd {
-	args := make([]interface{}, 2+len(keys))
-	args[0] = "sdiffstore"
-	args[1] = destination
-	for i, key := range keys {
-		args[2+i] = key
-	}
-	cmd := NewIntCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) SInter(keys ...string) *StringSliceCmd {
-	args := make([]interface{}, 1+len(keys))
-	args[0] = "sinter"
-	for i, key := range keys {
-		args[1+i] = key
-	}
-	cmd := NewStringSliceCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) SInterStore(destination string, keys ...string) *IntCmd {
-	args := make([]interface{}, 2+len(keys))
-	args[0] = "sinterstore"
-	args[1] = destination
-	for i, key := range keys {
-		args[2+i] = key
-	}
-	cmd := NewIntCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) SIsMember(key string, member interface{}) *BoolCmd {
-	cmd := NewBoolCmd("sismember", key, member)
-	_ = c(cmd)
-	return cmd
-}
-
-// Redis `SMEMBERS key` command output as a slice
-func (c cmdable) SMembers(key string) *StringSliceCmd {
-	cmd := NewStringSliceCmd("smembers", key)
-	_ = c(cmd)
-	return cmd
-}
-
-// Redis `SMEMBERS key` command output as a map
-func (c cmdable) SMembersMap(key string) *StringStructMapCmd {
-	cmd := NewStringStructMapCmd("smembers", key)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) SMove(source, destination string, member interface{}) *BoolCmd {
-	cmd := NewBoolCmd("smove", source, destination, member)
-	_ = c(cmd)
-	return cmd
-}
-
-// Redis `SPOP key` command.
-func (c cmdable) SPop(key string) *StringCmd {
-	cmd := NewStringCmd("spop", key)
-	_ = c(cmd)
-	return cmd
-}
-
-// Redis `SPOP key count` command.
-func (c cmdable) SPopN(key string, count int64) *StringSliceCmd {
-	cmd := NewStringSliceCmd("spop", key, count)
-	_ = c(cmd)
-	return cmd
-}
-
-// Redis `SRANDMEMBER key` command.
-func (c cmdable) SRandMember(key string) *StringCmd {
-	cmd := NewStringCmd("srandmember", key)
-	_ = c(cmd)
-	return cmd
-}
-
-// Redis `SRANDMEMBER key count` command.
-func (c cmdable) SRandMemberN(key string, count int64) *StringSliceCmd {
-	cmd := NewStringSliceCmd("srandmember", key, count)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) SRem(key string, members ...interface{}) *IntCmd {
-	args := make([]interface{}, 2, 2+len(members))
-	args[0] = "srem"
-	args[1] = key
-	args = appendArgs(args, members)
-	cmd := NewIntCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) SUnion(keys ...string) *StringSliceCmd {
-	args := make([]interface{}, 1+len(keys))
-	args[0] = "sunion"
-	for i, key := range keys {
-		args[1+i] = key
-	}
-	cmd := NewStringSliceCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) SUnionStore(destination string, keys ...string) *IntCmd {
-	args := make([]interface{}, 2+len(keys))
-	args[0] = "sunionstore"
-	args[1] = destination
-	for i, key := range keys {
-		args[2+i] = key
-	}
-	cmd := NewIntCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-//------------------------------------------------------------------------------
-
-type XAddArgs struct {
-	Stream       string
-	MaxLen       int64 // MAXLEN N
-	MaxLenApprox int64 // MAXLEN ~ N
-	ID           string
-	Values       map[string]interface{}
-}
-
-func (c cmdable) XAdd(a *XAddArgs) *StringCmd {
-	args := make([]interface{}, 0, 6+len(a.Values)*2)
-	args = append(args, "xadd")
-	args = append(args, a.Stream)
-	if a.MaxLen > 0 {
-		args = append(args, "maxlen", a.MaxLen)
-	} else if a.MaxLenApprox > 0 {
-		args = append(args, "maxlen", "~", a.MaxLenApprox)
-	}
-	if a.ID != "" {
-		args = append(args, a.ID)
-	} else {
-		args = append(args, "*")
-	}
-	for k, v := range a.Values {
-		args = append(args, k)
-		args = append(args, v)
-	}
-
-	cmd := NewStringCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) XDel(stream string, ids ...string) *IntCmd {
-	args := []interface{}{"xdel", stream}
-	for _, id := range ids {
-		args = append(args, id)
-	}
-	cmd := NewIntCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) XLen(stream string) *IntCmd {
-	cmd := NewIntCmd("xlen", stream)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) XRange(stream, start, stop string) *XMessageSliceCmd {
-	cmd := NewXMessageSliceCmd("xrange", stream, start, stop)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) XRangeN(stream, start, stop string, count int64) *XMessageSliceCmd {
-	cmd := NewXMessageSliceCmd("xrange", stream, start, stop, "count", count)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) XRevRange(stream, start, stop string) *XMessageSliceCmd {
-	cmd := NewXMessageSliceCmd("xrevrange", stream, start, stop)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) XRevRangeN(stream, start, stop string, count int64) *XMessageSliceCmd {
-	cmd := NewXMessageSliceCmd("xrevrange", stream, start, stop, "count", count)
-	_ = c(cmd)
-	return cmd
-}
-
-type XReadArgs struct {
-	Streams []string // list of streams and ids, e.g. stream1 stream2 id1 id2
-	Count   int64
-	Block   time.Duration
-}
-
-func (c cmdable) XRead(a *XReadArgs) *XStreamSliceCmd {
-	args := make([]interface{}, 0, 5+len(a.Streams))
-	args = append(args, "xread")
-	if a.Count > 0 {
-		args = append(args, "count")
-		args = append(args, a.Count)
-	}
-	if a.Block >= 0 {
-		args = append(args, "block")
-		args = append(args, int64(a.Block/time.Millisecond))
-	}
-
-	args = append(args, "streams")
-	for _, s := range a.Streams {
-		args = append(args, s)
-	}
-
-	cmd := NewXStreamSliceCmd(args...)
-	if a.Block >= 0 {
-		cmd.setReadTimeout(a.Block)
-	}
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) XReadStreams(streams ...string) *XStreamSliceCmd {
-	return c.XRead(&XReadArgs{
-		Streams: streams,
-		Block:   -1,
-	})
-}
-
-func (c cmdable) XGroupCreate(stream, group, start string) *StatusCmd {
-	cmd := NewStatusCmd("xgroup", "create", stream, group, start)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) XGroupCreateMkStream(stream, group, start string) *StatusCmd {
-	cmd := NewStatusCmd("xgroup", "create", stream, group, start, "mkstream")
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) XGroupSetID(stream, group, start string) *StatusCmd {
-	cmd := NewStatusCmd("xgroup", "setid", stream, group, start)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) XGroupDestroy(stream, group string) *IntCmd {
-	cmd := NewIntCmd("xgroup", "destroy", stream, group)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) XGroupDelConsumer(stream, group, consumer string) *IntCmd {
-	cmd := NewIntCmd("xgroup", "delconsumer", stream, group, consumer)
-	_ = c(cmd)
-	return cmd
-}
-
-type XReadGroupArgs struct {
-	Group    string
-	Consumer string
-	Streams  []string // list of streams and ids, e.g. stream1 stream2 id1 id2
-	Count    int64
-	Block    time.Duration
-	NoAck    bool
-}
-
-func (c cmdable) XReadGroup(a *XReadGroupArgs) *XStreamSliceCmd {
-	args := make([]interface{}, 0, 8+len(a.Streams))
-	args = append(args, "xreadgroup", "group", a.Group, a.Consumer)
-	if a.Count > 0 {
-		args = append(args, "count", a.Count)
-	}
-	if a.Block >= 0 {
-		args = append(args, "block", int64(a.Block/time.Millisecond))
-	}
-	if a.NoAck {
-		args = append(args, "noack")
-	}
-	args = append(args, "streams")
-	for _, s := range a.Streams {
-		args = append(args, s)
-	}
-
-	cmd := NewXStreamSliceCmd(args...)
-	if a.Block >= 0 {
-		cmd.setReadTimeout(a.Block)
-	}
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) XAck(stream, group string, ids ...string) *IntCmd {
-	args := []interface{}{"xack", stream, group}
-	for _, id := range ids {
-		args = append(args, id)
-	}
-	cmd := NewIntCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) XPending(stream, group string) *XPendingCmd {
-	cmd := NewXPendingCmd("xpending", stream, group)
-	_ = c(cmd)
-	return cmd
-}
-
-type XPendingExtArgs struct {
-	Stream   string
-	Group    string
-	Start    string
-	End      string
-	Count    int64
-	Consumer string
-}
-
-func (c cmdable) XPendingExt(a *XPendingExtArgs) *XPendingExtCmd {
-	args := make([]interface{}, 0, 7)
-	args = append(args, "xpending", a.Stream, a.Group, a.Start, a.End, a.Count)
-	if a.Consumer != "" {
-		args = append(args, a.Consumer)
-	}
-	cmd := NewXPendingExtCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-type XClaimArgs struct {
-	Stream   string
-	Group    string
-	Consumer string
-	MinIdle  time.Duration
-	Messages []string
-}
-
-func (c cmdable) XClaim(a *XClaimArgs) *XMessageSliceCmd {
-	args := xClaimArgs(a)
-	cmd := NewXMessageSliceCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) XClaimJustID(a *XClaimArgs) *StringSliceCmd {
-	args := xClaimArgs(a)
-	args = append(args, "justid")
-	cmd := NewStringSliceCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-func xClaimArgs(a *XClaimArgs) []interface{} {
-	args := make([]interface{}, 0, 4+len(a.Messages))
-	args = append(args,
-		"xclaim",
-		a.Stream,
-		a.Group, a.Consumer,
-		int64(a.MinIdle/time.Millisecond))
-	for _, id := range a.Messages {
-		args = append(args, id)
-	}
-	return args
-}
-
-func (c cmdable) XTrim(key string, maxLen int64) *IntCmd {
-	cmd := NewIntCmd("xtrim", key, "maxlen", maxLen)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) XTrimApprox(key string, maxLen int64) *IntCmd {
-	cmd := NewIntCmd("xtrim", key, "maxlen", "~", maxLen)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) XInfoGroups(key string) *XInfoGroupsCmd {
-	cmd := NewXInfoGroupsCmd(key)
-	_ = c(cmd)
-	return cmd
-}
-
-//------------------------------------------------------------------------------
-
-// Z represents sorted set member.
-type Z struct {
-	Score  float64
-	Member interface{}
-}
-
-// ZWithKey represents sorted set member including the name of the key where it was popped.
-type ZWithKey struct {
-	Z
-	Key string
-}
-
-// ZStore is used as an arg to ZInterStore and ZUnionStore.
-type ZStore struct {
-	Keys    []string
-	Weights []float64
-	// Can be SUM, MIN or MAX.
-	Aggregate string
-}
-
-// Redis `BZPOPMAX key [key ...] timeout` command.
-func (c cmdable) BZPopMax(timeout time.Duration, keys ...string) *ZWithKeyCmd {
-	args := make([]interface{}, 1+len(keys)+1)
-	args[0] = "bzpopmax"
-	for i, key := range keys {
-		args[1+i] = key
-	}
-	args[len(args)-1] = formatSec(timeout)
-	cmd := NewZWithKeyCmd(args...)
-	cmd.setReadTimeout(timeout)
-	_ = c(cmd)
-	return cmd
-}
-
-// Redis `BZPOPMIN key [key ...] timeout` command.
-func (c cmdable) BZPopMin(timeout time.Duration, keys ...string) *ZWithKeyCmd {
-	args := make([]interface{}, 1+len(keys)+1)
-	args[0] = "bzpopmin"
-	for i, key := range keys {
-		args[1+i] = key
-	}
-	args[len(args)-1] = formatSec(timeout)
-	cmd := NewZWithKeyCmd(args...)
-	cmd.setReadTimeout(timeout)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) zAdd(a []interface{}, n int, members ...*Z) *IntCmd {
-	for i, m := range members {
-		a[n+2*i] = m.Score
-		a[n+2*i+1] = m.Member
-	}
-	cmd := NewIntCmd(a...)
-	_ = c(cmd)
-	return cmd
-}
-
-// Redis `ZADD key score member [score member ...]` command.
-func (c cmdable) ZAdd(key string, members ...*Z) *IntCmd {
-	const n = 2
-	a := make([]interface{}, n+2*len(members))
-	a[0], a[1] = "zadd", key
-	return c.zAdd(a, n, members...)
-}
-
-// Redis `ZADD key NX score member [score member ...]` command.
-func (c cmdable) ZAddNX(key string, members ...*Z) *IntCmd {
-	const n = 3
-	a := make([]interface{}, n+2*len(members))
-	a[0], a[1], a[2] = "zadd", key, "nx"
-	return c.zAdd(a, n, members...)
-}
-
-// Redis `ZADD key XX score member [score member ...]` command.
-func (c cmdable) ZAddXX(key string, members ...*Z) *IntCmd {
-	const n = 3
-	a := make([]interface{}, n+2*len(members))
-	a[0], a[1], a[2] = "zadd", key, "xx"
-	return c.zAdd(a, n, members...)
-}
-
-// Redis `ZADD key CH score member [score member ...]` command.
-func (c cmdable) ZAddCh(key string, members ...*Z) *IntCmd {
-	const n = 3
-	a := make([]interface{}, n+2*len(members))
-	a[0], a[1], a[2] = "zadd", key, "ch"
-	return c.zAdd(a, n, members...)
-}
-
-// Redis `ZADD key NX CH score member [score member ...]` command.
-func (c cmdable) ZAddNXCh(key string, members ...*Z) *IntCmd {
-	const n = 4
-	a := make([]interface{}, n+2*len(members))
-	a[0], a[1], a[2], a[3] = "zadd", key, "nx", "ch"
-	return c.zAdd(a, n, members...)
-}
-
-// Redis `ZADD key XX CH score member [score member ...]` command.
-func (c cmdable) ZAddXXCh(key string, members ...*Z) *IntCmd {
-	const n = 4
-	a := make([]interface{}, n+2*len(members))
-	a[0], a[1], a[2], a[3] = "zadd", key, "xx", "ch"
-	return c.zAdd(a, n, members...)
-}
-
-func (c cmdable) zIncr(a []interface{}, n int, members ...*Z) *FloatCmd {
-	for i, m := range members {
-		a[n+2*i] = m.Score
-		a[n+2*i+1] = m.Member
-	}
-	cmd := NewFloatCmd(a...)
-	_ = c(cmd)
-	return cmd
-}
-
-// Redis `ZADD key INCR score member` command.
-func (c cmdable) ZIncr(key string, member *Z) *FloatCmd {
-	const n = 3
-	a := make([]interface{}, n+2)
-	a[0], a[1], a[2] = "zadd", key, "incr"
-	return c.zIncr(a, n, member)
-}
-
-// Redis `ZADD key NX INCR score member` command.
-func (c cmdable) ZIncrNX(key string, member *Z) *FloatCmd {
-	const n = 4
-	a := make([]interface{}, n+2)
-	a[0], a[1], a[2], a[3] = "zadd", key, "incr", "nx"
-	return c.zIncr(a, n, member)
-}
-
-// Redis `ZADD key XX INCR score member` command.
-func (c cmdable) ZIncrXX(key string, member *Z) *FloatCmd {
-	const n = 4
-	a := make([]interface{}, n+2)
-	a[0], a[1], a[2], a[3] = "zadd", key, "incr", "xx"
-	return c.zIncr(a, n, member)
-}
-
-func (c cmdable) ZCard(key string) *IntCmd {
-	cmd := NewIntCmd("zcard", key)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ZCount(key, min, max string) *IntCmd {
-	cmd := NewIntCmd("zcount", key, min, max)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ZLexCount(key, min, max string) *IntCmd {
-	cmd := NewIntCmd("zlexcount", key, min, max)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ZIncrBy(key string, increment float64, member string) *FloatCmd {
-	cmd := NewFloatCmd("zincrby", key, increment, member)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ZInterStore(destination string, store *ZStore) *IntCmd {
-	args := make([]interface{}, 3+len(store.Keys))
-	args[0] = "zinterstore"
-	args[1] = destination
-	args[2] = len(store.Keys)
-	for i, key := range store.Keys {
-		args[3+i] = key
-	}
-	if len(store.Weights) > 0 {
-		args = append(args, "weights")
-		for _, weight := range store.Weights {
-			args = append(args, weight)
-		}
-	}
-	if store.Aggregate != "" {
-		args = append(args, "aggregate", store.Aggregate)
-	}
-	cmd := NewIntCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ZPopMax(key string, count ...int64) *ZSliceCmd {
-	args := []interface{}{
-		"zpopmax",
-		key,
-	}
-
-	switch len(count) {
-	case 0:
-		break
-	case 1:
-		args = append(args, count[0])
-	default:
-		panic("too many arguments")
-	}
-
-	cmd := NewZSliceCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ZPopMin(key string, count ...int64) *ZSliceCmd {
-	args := []interface{}{
-		"zpopmin",
-		key,
-	}
-
-	switch len(count) {
-	case 0:
-		break
-	case 1:
-		args = append(args, count[0])
-	default:
-		panic("too many arguments")
-	}
-
-	cmd := NewZSliceCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) zRange(key string, start, stop int64, withScores bool) *StringSliceCmd {
-	args := []interface{}{
-		"zrange",
-		key,
-		start,
-		stop,
-	}
-	if withScores {
-		args = append(args, "withscores")
-	}
-	cmd := NewStringSliceCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ZRange(key string, start, stop int64) *StringSliceCmd {
-	return c.zRange(key, start, stop, false)
-}
-
-func (c cmdable) ZRangeWithScores(key string, start, stop int64) *ZSliceCmd {
-	cmd := NewZSliceCmd("zrange", key, start, stop, "withscores")
-	_ = c(cmd)
-	return cmd
-}
-
-type ZRangeBy struct {
-	Min, Max      string
-	Offset, Count int64
-}
-
-func (c cmdable) zRangeBy(zcmd, key string, opt *ZRangeBy, withScores bool) *StringSliceCmd {
-	args := []interface{}{zcmd, key, opt.Min, opt.Max}
-	if withScores {
-		args = append(args, "withscores")
-	}
-	if opt.Offset != 0 || opt.Count != 0 {
-		args = append(
-			args,
-			"limit",
-			opt.Offset,
-			opt.Count,
-		)
-	}
-	cmd := NewStringSliceCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ZRangeByScore(key string, opt *ZRangeBy) *StringSliceCmd {
-	return c.zRangeBy("zrangebyscore", key, opt, false)
-}
-
-func (c cmdable) ZRangeByLex(key string, opt *ZRangeBy) *StringSliceCmd {
-	return c.zRangeBy("zrangebylex", key, opt, false)
-}
-
-func (c cmdable) ZRangeByScoreWithScores(key string, opt *ZRangeBy) *ZSliceCmd {
-	args := []interface{}{"zrangebyscore", key, opt.Min, opt.Max, "withscores"}
-	if opt.Offset != 0 || opt.Count != 0 {
-		args = append(
-			args,
-			"limit",
-			opt.Offset,
-			opt.Count,
-		)
-	}
-	cmd := NewZSliceCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ZRank(key, member string) *IntCmd {
-	cmd := NewIntCmd("zrank", key, member)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ZRem(key string, members ...interface{}) *IntCmd {
-	args := make([]interface{}, 2, 2+len(members))
-	args[0] = "zrem"
-	args[1] = key
-	args = appendArgs(args, members)
-	cmd := NewIntCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ZRemRangeByRank(key string, start, stop int64) *IntCmd {
-	cmd := NewIntCmd(
-		"zremrangebyrank",
-		key,
-		start,
-		stop,
-	)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ZRemRangeByScore(key, min, max string) *IntCmd {
-	cmd := NewIntCmd("zremrangebyscore", key, min, max)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ZRemRangeByLex(key, min, max string) *IntCmd {
-	cmd := NewIntCmd("zremrangebylex", key, min, max)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ZRevRange(key string, start, stop int64) *StringSliceCmd {
-	cmd := NewStringSliceCmd("zrevrange", key, start, stop)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ZRevRangeWithScores(key string, start, stop int64) *ZSliceCmd {
-	cmd := NewZSliceCmd("zrevrange", key, start, stop, "withscores")
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) zRevRangeBy(zcmd, key string, opt *ZRangeBy) *StringSliceCmd {
-	args := []interface{}{zcmd, key, opt.Max, opt.Min}
-	if opt.Offset != 0 || opt.Count != 0 {
-		args = append(
-			args,
-			"limit",
-			opt.Offset,
-			opt.Count,
-		)
-	}
-	cmd := NewStringSliceCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ZRevRangeByScore(key string, opt *ZRangeBy) *StringSliceCmd {
-	return c.zRevRangeBy("zrevrangebyscore", key, opt)
-}
-
-func (c cmdable) ZRevRangeByLex(key string, opt *ZRangeBy) *StringSliceCmd {
-	return c.zRevRangeBy("zrevrangebylex", key, opt)
-}
-
-func (c cmdable) ZRevRangeByScoreWithScores(key string, opt *ZRangeBy) *ZSliceCmd {
-	args := []interface{}{"zrevrangebyscore", key, opt.Max, opt.Min, "withscores"}
-	if opt.Offset != 0 || opt.Count != 0 {
-		args = append(
-			args,
-			"limit",
-			opt.Offset,
-			opt.Count,
-		)
-	}
-	cmd := NewZSliceCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ZRevRank(key, member string) *IntCmd {
-	cmd := NewIntCmd("zrevrank", key, member)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ZScore(key, member string) *FloatCmd {
-	cmd := NewFloatCmd("zscore", key, member)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ZUnionStore(dest string, store *ZStore) *IntCmd {
-	args := make([]interface{}, 3+len(store.Keys))
-	args[0] = "zunionstore"
-	args[1] = dest
-	args[2] = len(store.Keys)
-	for i, key := range store.Keys {
-		args[3+i] = key
-	}
-	if len(store.Weights) > 0 {
-		args = append(args, "weights")
-		for _, weight := range store.Weights {
-			args = append(args, weight)
-		}
-	}
-	if store.Aggregate != "" {
-		args = append(args, "aggregate", store.Aggregate)
-	}
-	cmd := NewIntCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-//------------------------------------------------------------------------------
-
-func (c cmdable) PFAdd(key string, els ...interface{}) *IntCmd {
-	args := make([]interface{}, 2, 2+len(els))
-	args[0] = "pfadd"
-	args[1] = key
-	args = appendArgs(args, els)
-	cmd := NewIntCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) PFCount(keys ...string) *IntCmd {
-	args := make([]interface{}, 1+len(keys))
-	args[0] = "pfcount"
-	for i, key := range keys {
-		args[1+i] = key
-	}
-	cmd := NewIntCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) PFMerge(dest string, keys ...string) *StatusCmd {
-	args := make([]interface{}, 2+len(keys))
-	args[0] = "pfmerge"
-	args[1] = dest
-	for i, key := range keys {
-		args[2+i] = key
-	}
-	cmd := NewStatusCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-//------------------------------------------------------------------------------
-
-func (c cmdable) BgRewriteAOF() *StatusCmd {
-	cmd := NewStatusCmd("bgrewriteaof")
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) BgSave() *StatusCmd {
-	cmd := NewStatusCmd("bgsave")
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ClientKill(ipPort string) *StatusCmd {
-	cmd := NewStatusCmd("client", "kill", ipPort)
-	_ = c(cmd)
-	return cmd
-}
-
-// ClientKillByFilter is new style synx, while the ClientKill is old
-// CLIENT KILL <option> [value] ... <option> [value]
-func (c cmdable) ClientKillByFilter(keys ...string) *IntCmd {
-	args := make([]interface{}, 2+len(keys))
-	args[0] = "client"
-	args[1] = "kill"
-	for i, key := range keys {
-		args[2+i] = key
-	}
-	cmd := NewIntCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ClientList() *StringCmd {
-	cmd := NewStringCmd("client", "list")
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ClientPause(dur time.Duration) *BoolCmd {
-	cmd := NewBoolCmd("client", "pause", formatMs(dur))
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ClientID() *IntCmd {
-	cmd := NewIntCmd("client", "id")
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ClientUnblock(id int64) *IntCmd {
-	cmd := NewIntCmd("client", "unblock", id)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ClientUnblockWithError(id int64) *IntCmd {
-	cmd := NewIntCmd("client", "unblock", id, "error")
-	_ = c(cmd)
-	return cmd
-}
-
-// ClientSetName assigns a name to the connection.
-func (c statefulCmdable) ClientSetName(name string) *BoolCmd {
-	cmd := NewBoolCmd("client", "setname", name)
-	_ = c(cmd)
-	return cmd
-}
-
-// ClientGetName returns the name of the connection.
-func (c cmdable) ClientGetName() *StringCmd {
-	cmd := NewStringCmd("client", "getname")
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ConfigGet(parameter string) *SliceCmd {
-	cmd := NewSliceCmd("config", "get", parameter)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ConfigResetStat() *StatusCmd {
-	cmd := NewStatusCmd("config", "resetstat")
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ConfigSet(parameter, value string) *StatusCmd {
-	cmd := NewStatusCmd("config", "set", parameter, value)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ConfigRewrite() *StatusCmd {
-	cmd := NewStatusCmd("config", "rewrite")
-	_ = c(cmd)
-	return cmd
-}
-
-// Deperecated. Use DBSize instead.
-func (c cmdable) DbSize() *IntCmd {
-	return c.DBSize()
-}
-
-func (c cmdable) DBSize() *IntCmd {
-	cmd := NewIntCmd("dbsize")
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) FlushAll() *StatusCmd {
-	cmd := NewStatusCmd("flushall")
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) FlushAllAsync() *StatusCmd {
-	cmd := NewStatusCmd("flushall", "async")
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) FlushDB() *StatusCmd {
-	cmd := NewStatusCmd("flushdb")
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) FlushDBAsync() *StatusCmd {
-	cmd := NewStatusCmd("flushdb", "async")
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) Info(section ...string) *StringCmd {
-	args := []interface{}{"info"}
-	if len(section) > 0 {
-		args = append(args, section[0])
-	}
-	cmd := NewStringCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) LastSave() *IntCmd {
-	cmd := NewIntCmd("lastsave")
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) Save() *StatusCmd {
-	cmd := NewStatusCmd("save")
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) shutdown(modifier string) *StatusCmd {
-	var args []interface{}
-	if modifier == "" {
-		args = []interface{}{"shutdown"}
-	} else {
-		args = []interface{}{"shutdown", modifier}
-	}
-	cmd := NewStatusCmd(args...)
-	_ = c(cmd)
-	if err := cmd.Err(); err != nil {
-		if err == io.EOF {
-			// Server quit as expected.
-			cmd.err = nil
-		}
-	} else {
-		// Server did not quit. String reply contains the reason.
-		cmd.err = errors.New(cmd.val)
-		cmd.val = ""
-	}
-	return cmd
-}
-
-func (c cmdable) Shutdown() *StatusCmd {
-	return c.shutdown("")
-}
-
-func (c cmdable) ShutdownSave() *StatusCmd {
-	return c.shutdown("save")
-}
-
-func (c cmdable) ShutdownNoSave() *StatusCmd {
-	return c.shutdown("nosave")
-}
-
-func (c cmdable) SlaveOf(host, port string) *StatusCmd {
-	cmd := NewStatusCmd("slaveof", host, port)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) SlowLog() {
-	panic("not implemented")
-}
-
-func (c cmdable) Sync() {
-	panic("not implemented")
-}
-
-func (c cmdable) Time() *TimeCmd {
-	cmd := NewTimeCmd("time")
-	_ = c(cmd)
-	return cmd
-}
-
-//------------------------------------------------------------------------------
-
-func (c cmdable) Eval(script string, keys []string, args ...interface{}) *Cmd {
-	cmdArgs := make([]interface{}, 3+len(keys), 3+len(keys)+len(args))
-	cmdArgs[0] = "eval"
-	cmdArgs[1] = script
-	cmdArgs[2] = len(keys)
-	for i, key := range keys {
-		cmdArgs[3+i] = key
-	}
-	cmdArgs = appendArgs(cmdArgs, args)
-	cmd := NewCmd(cmdArgs...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) EvalSha(sha1 string, keys []string, args ...interface{}) *Cmd {
-	cmdArgs := make([]interface{}, 3+len(keys), 3+len(keys)+len(args))
-	cmdArgs[0] = "evalsha"
-	cmdArgs[1] = sha1
-	cmdArgs[2] = len(keys)
-	for i, key := range keys {
-		cmdArgs[3+i] = key
-	}
-	cmdArgs = appendArgs(cmdArgs, args)
-	cmd := NewCmd(cmdArgs...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ScriptExists(hashes ...string) *BoolSliceCmd {
-	args := make([]interface{}, 2+len(hashes))
-	args[0] = "script"
-	args[1] = "exists"
-	for i, hash := range hashes {
-		args[2+i] = hash
-	}
-	cmd := NewBoolSliceCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ScriptFlush() *StatusCmd {
-	cmd := NewStatusCmd("script", "flush")
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ScriptKill() *StatusCmd {
-	cmd := NewStatusCmd("script", "kill")
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ScriptLoad(script string) *StringCmd {
-	cmd := NewStringCmd("script", "load", script)
-	_ = c(cmd)
-	return cmd
-}
-
-//------------------------------------------------------------------------------
-
-func (c cmdable) DebugObject(key string) *StringCmd {
-	cmd := NewStringCmd("debug", "object", key)
-	_ = c(cmd)
-	return cmd
-}
-
-//------------------------------------------------------------------------------
-
-// Publish posts the message to the channel.
-func (c cmdable) Publish(channel string, message interface{}) *IntCmd {
-	cmd := NewIntCmd("publish", channel, message)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) PubSubChannels(pattern string) *StringSliceCmd {
-	args := []interface{}{"pubsub", "channels"}
-	if pattern != "*" {
-		args = append(args, pattern)
-	}
-	cmd := NewStringSliceCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) PubSubNumSub(channels ...string) *StringIntMapCmd {
-	args := make([]interface{}, 2+len(channels))
-	args[0] = "pubsub"
-	args[1] = "numsub"
-	for i, channel := range channels {
-		args[2+i] = channel
-	}
-	cmd := NewStringIntMapCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) PubSubNumPat() *IntCmd {
-	cmd := NewIntCmd("pubsub", "numpat")
-	_ = c(cmd)
-	return cmd
-}
-
-//------------------------------------------------------------------------------
-
-func (c cmdable) ClusterSlots() *ClusterSlotsCmd {
-	cmd := NewClusterSlotsCmd("cluster", "slots")
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ClusterNodes() *StringCmd {
-	cmd := NewStringCmd("cluster", "nodes")
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ClusterMeet(host, port string) *StatusCmd {
-	cmd := NewStatusCmd("cluster", "meet", host, port)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ClusterForget(nodeID string) *StatusCmd {
-	cmd := NewStatusCmd("cluster", "forget", nodeID)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ClusterReplicate(nodeID string) *StatusCmd {
-	cmd := NewStatusCmd("cluster", "replicate", nodeID)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ClusterResetSoft() *StatusCmd {
-	cmd := NewStatusCmd("cluster", "reset", "soft")
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ClusterResetHard() *StatusCmd {
-	cmd := NewStatusCmd("cluster", "reset", "hard")
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ClusterInfo() *StringCmd {
-	cmd := NewStringCmd("cluster", "info")
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ClusterKeySlot(key string) *IntCmd {
-	cmd := NewIntCmd("cluster", "keyslot", key)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ClusterGetKeysInSlot(slot int, count int) *StringSliceCmd {
-	cmd := NewStringSliceCmd("cluster", "getkeysinslot", slot, count)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ClusterCountFailureReports(nodeID string) *IntCmd {
-	cmd := NewIntCmd("cluster", "count-failure-reports", nodeID)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ClusterCountKeysInSlot(slot int) *IntCmd {
-	cmd := NewIntCmd("cluster", "countkeysinslot", slot)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ClusterDelSlots(slots ...int) *StatusCmd {
-	args := make([]interface{}, 2+len(slots))
-	args[0] = "cluster"
-	args[1] = "delslots"
-	for i, slot := range slots {
-		args[2+i] = slot
-	}
-	cmd := NewStatusCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ClusterDelSlotsRange(min, max int) *StatusCmd {
-	size := max - min + 1
-	slots := make([]int, size)
-	for i := 0; i < size; i++ {
-		slots[i] = min + i
-	}
-	return c.ClusterDelSlots(slots...)
-}
-
-func (c cmdable) ClusterSaveConfig() *StatusCmd {
-	cmd := NewStatusCmd("cluster", "saveconfig")
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ClusterSlaves(nodeID string) *StringSliceCmd {
-	cmd := NewStringSliceCmd("cluster", "slaves", nodeID)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ReadOnly() *StatusCmd {
-	cmd := NewStatusCmd("readonly")
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ReadWrite() *StatusCmd {
-	cmd := NewStatusCmd("readwrite")
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ClusterFailover() *StatusCmd {
-	cmd := NewStatusCmd("cluster", "failover")
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ClusterAddSlots(slots ...int) *StatusCmd {
-	args := make([]interface{}, 2+len(slots))
-	args[0] = "cluster"
-	args[1] = "addslots"
-	for i, num := range slots {
-		args[2+i] = num
-	}
-	cmd := NewStatusCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) ClusterAddSlotsRange(min, max int) *StatusCmd {
-	size := max - min + 1
-	slots := make([]int, size)
-	for i := 0; i < size; i++ {
-		slots[i] = min + i
-	}
-	return c.ClusterAddSlots(slots...)
-}
-
-//------------------------------------------------------------------------------
-
-func (c cmdable) GeoAdd(key string, geoLocation ...*GeoLocation) *IntCmd {
-	args := make([]interface{}, 2+3*len(geoLocation))
-	args[0] = "geoadd"
-	args[1] = key
-	for i, eachLoc := range geoLocation {
-		args[2+3*i] = eachLoc.Longitude
-		args[2+3*i+1] = eachLoc.Latitude
-		args[2+3*i+2] = eachLoc.Name
-	}
-	cmd := NewIntCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-// GeoRadius is a read-only GEORADIUS_RO command.
-func (c cmdable) GeoRadius(key string, longitude, latitude float64, query *GeoRadiusQuery) *GeoLocationCmd {
-	cmd := NewGeoLocationCmd(query, "georadius_ro", key, longitude, latitude)
-	if query.Store != "" || query.StoreDist != "" {
-		cmd.SetErr(errors.New("GeoRadius does not support Store or StoreDist"))
-		return cmd
-	}
-	_ = c(cmd)
-	return cmd
-}
-
-// GeoRadiusStore is a writing GEORADIUS command.
-func (c cmdable) GeoRadiusStore(key string, longitude, latitude float64, query *GeoRadiusQuery) *IntCmd {
-	args := geoLocationArgs(query, "georadius", key, longitude, latitude)
-	cmd := NewIntCmd(args...)
-	if query.Store == "" && query.StoreDist == "" {
-		cmd.SetErr(errors.New("GeoRadiusStore requires Store or StoreDist"))
-		return cmd
-	}
-	_ = c(cmd)
-	return cmd
-}
-
-// GeoRadius is a read-only GEORADIUSBYMEMBER_RO command.
-func (c cmdable) GeoRadiusByMember(key, member string, query *GeoRadiusQuery) *GeoLocationCmd {
-	cmd := NewGeoLocationCmd(query, "georadiusbymember_ro", key, member)
-	if query.Store != "" || query.StoreDist != "" {
-		cmd.SetErr(errors.New("GeoRadiusByMember does not support Store or StoreDist"))
-		return cmd
-	}
-	_ = c(cmd)
-	return cmd
-}
-
-// GeoRadiusByMemberStore is a writing GEORADIUSBYMEMBER command.
-func (c cmdable) GeoRadiusByMemberStore(key, member string, query *GeoRadiusQuery) *IntCmd {
-	args := geoLocationArgs(query, "georadiusbymember", key, member)
-	cmd := NewIntCmd(args...)
-	if query.Store == "" && query.StoreDist == "" {
-		cmd.SetErr(errors.New("GeoRadiusByMemberStore requires Store or StoreDist"))
-		return cmd
-	}
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) GeoDist(key string, member1, member2, unit string) *FloatCmd {
-	if unit == "" {
-		unit = "km"
-	}
-	cmd := NewFloatCmd("geodist", key, member1, member2, unit)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) GeoHash(key string, members ...string) *StringSliceCmd {
-	args := make([]interface{}, 2+len(members))
-	args[0] = "geohash"
-	args[1] = key
-	for i, member := range members {
-		args[2+i] = member
-	}
-	cmd := NewStringSliceCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-func (c cmdable) GeoPos(key string, members ...string) *GeoPosCmd {
-	args := make([]interface{}, 2+len(members))
-	args[0] = "geopos"
-	args[1] = key
-	for i, member := range members {
-		args[2+i] = member
-	}
-	cmd := NewGeoPosCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
-
-//------------------------------------------------------------------------------
-
-func (c cmdable) MemoryUsage(key string, samples ...int) *IntCmd {
-	args := []interface{}{"memory", "usage", key}
-	if len(samples) > 0 {
-		if len(samples) != 1 {
-			panic("MemoryUsage expects single sample count")
-		}
-		args = append(args, "SAMPLES", samples[0])
-	}
-	cmd := NewIntCmd(args...)
-	_ = c(cmd)
-	return cmd
-}
diff --git a/vendor/github.com/go-redis/redis/v7/go.mod b/vendor/github.com/go-redis/redis/v7/go.mod
deleted file mode 100644
index e3a4dec54a..0000000000
--- a/vendor/github.com/go-redis/redis/v7/go.mod
+++ /dev/null
@@ -1,15 +0,0 @@
-module github.com/go-redis/redis/v7
-
-require (
-	github.com/golang/protobuf v1.3.2 // indirect
-	github.com/kr/pretty v0.1.0 // indirect
-	github.com/onsi/ginkgo v1.10.1
-	github.com/onsi/gomega v1.7.0
-	golang.org/x/net v0.0.0-20190923162816-aa69164e4478 // indirect
-	golang.org/x/sys v0.0.0-20191010194322-b09406accb47 // indirect
-	golang.org/x/text v0.3.2 // indirect
-	gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 // indirect
-	gopkg.in/yaml.v2 v2.2.4 // indirect
-)
-
-go 1.11
diff --git a/vendor/github.com/go-redis/redis/v7/go.sum b/vendor/github.com/go-redis/redis/v7/go.sum
deleted file mode 100644
index 6a04dbb63a..0000000000
--- a/vendor/github.com/go-redis/redis/v7/go.sum
+++ /dev/null
@@ -1,47 +0,0 @@
-github.com/fsnotify/fsnotify v1.4.7 h1:IXs+QLmnXW2CcXuY+8Mzv/fWEsPGWxqefPtCP5CnV9I=
-github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
-github.com/golang/protobuf v1.2.0 h1:P3YflyNX/ehuJFLhxviNdFxQPkGK5cDcApsge1SqnvM=
-github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
-github.com/golang/protobuf v1.3.2 h1:6nsPYzhq5kReh6QImI3k5qWzO4PEbvbIW2cwSfR/6xs=
-github.com/golang/protobuf v1.3.2/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
-github.com/hpcloud/tail v1.0.0 h1:nfCOvKYfkgYP8hkirhJocXT2+zOD8yUNjXaWfTlyFKI=
-github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU=
-github.com/kr/pretty v0.1.0 h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI=
-github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
-github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
-github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
-github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
-github.com/onsi/ginkgo v1.6.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
-github.com/onsi/ginkgo v1.10.1 h1:q/mM8GF/n0shIN8SaAZ0V+jnLPzen6WIVZdiwrRlMlo=
-github.com/onsi/ginkgo v1.10.1/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
-github.com/onsi/gomega v1.7.0 h1:XPnZz8VVBHjVsy1vzJmRwIcSwiUO+JFfrv/xGiigmME=
-github.com/onsi/gomega v1.7.0/go.mod h1:ex+gbHU/CVuBBDIJjb2X0qEXbFg53c61hWP/1CpauHY=
-golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
-golang.org/x/net v0.0.0-20180906233101-161cd47e91fd h1:nTDtHvHSdCn1m6ITfMRqtOd/9+7a3s8RBNOZ3eYZzJA=
-golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
-golang.org/x/net v0.0.0-20190923162816-aa69164e4478 h1:l5EDrHhldLYb3ZRHDUhXF7Om7MvYXnkV9/iQNo1lX6g=
-golang.org/x/net v0.0.0-20190923162816-aa69164e4478/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
-golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f h1:wMNYb4v58l5UBM7MYRLPG6ZhfOqbKu7X5eyFl8ZhKvA=
-golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e h1:o3PsSEY8E4eXWkXrIP9YJALUkVZqzHJT5DOasTyn8Vs=
-golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
-golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
-golang.org/x/sys v0.0.0-20191010194322-b09406accb47 h1:/XfQ9z7ib8eEJX2hdgFTZJ/ntt0swNk5oYBziWeTCvY=
-golang.org/x/sys v0.0.0-20191010194322-b09406accb47/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg=
-golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
-golang.org/x/text v0.3.2 h1:tW2bmiBqwgJj/UpqtC8EpXEZVYOwU0yG4iWbprSVAcs=
-golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
-golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
-gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/fsnotify.v1 v1.4.7 h1:xOHLXZwVvI9hhs+cLKq5+I5onOuwQLhQwiu63xxlHs4=
-gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
-gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ=
-gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
-gopkg.in/yaml.v2 v2.2.1 h1:mUhvW9EsL+naU5Q3cakzfE91YhliOondGd6ZrsDBHQE=
-gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.2.4 h1:/eiJrUcujPVeJ3xlSWaiNi3uSVmDGBK1pDHUHAnao1I=
-gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
diff --git a/vendor/github.com/go-redis/redis/v7/internal/consistenthash/consistenthash.go b/vendor/github.com/go-redis/redis/v7/internal/consistenthash/consistenthash.go
deleted file mode 100644
index a9c56f0762..0000000000
--- a/vendor/github.com/go-redis/redis/v7/internal/consistenthash/consistenthash.go
+++ /dev/null
@@ -1,81 +0,0 @@
-/*
-Copyright 2013 Google Inc.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-     http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-// Package consistenthash provides an implementation of a ring hash.
-package consistenthash
-
-import (
-	"hash/crc32"
-	"sort"
-	"strconv"
-)
-
-type Hash func(data []byte) uint32
-
-type Map struct {
-	hash     Hash
-	replicas int
-	keys     []int // Sorted
-	hashMap  map[int]string
-}
-
-func New(replicas int, fn Hash) *Map {
-	m := &Map{
-		replicas: replicas,
-		hash:     fn,
-		hashMap:  make(map[int]string),
-	}
-	if m.hash == nil {
-		m.hash = crc32.ChecksumIEEE
-	}
-	return m
-}
-
-// Returns true if there are no items available.
-func (m *Map) IsEmpty() bool {
-	return len(m.keys) == 0
-}
-
-// Adds some keys to the hash.
-func (m *Map) Add(keys ...string) {
-	for _, key := range keys {
-		for i := 0; i < m.replicas; i++ {
-			hash := int(m.hash([]byte(strconv.Itoa(i) + key)))
-			m.keys = append(m.keys, hash)
-			m.hashMap[hash] = key
-		}
-	}
-	sort.Ints(m.keys)
-}
-
-// Gets the closest item in the hash to the provided key.
-func (m *Map) Get(key string) string {
-	if m.IsEmpty() {
-		return ""
-	}
-
-	hash := int(m.hash([]byte(key)))
-
-	// Binary search for appropriate replica.
-	idx := sort.Search(len(m.keys), func(i int) bool { return m.keys[i] >= hash })
-
-	// Means we have cycled back to the first replica.
-	if idx == len(m.keys) {
-		idx = 0
-	}
-
-	return m.hashMap[m.keys[idx]]
-}
diff --git a/vendor/github.com/go-redis/redis/v7/internal/internal.go b/vendor/github.com/go-redis/redis/v7/internal/internal.go
deleted file mode 100644
index ad3fc3c9ff..0000000000
--- a/vendor/github.com/go-redis/redis/v7/internal/internal.go
+++ /dev/null
@@ -1,24 +0,0 @@
-package internal
-
-import (
-	"math/rand"
-	"time"
-)
-
-// Retry backoff with jitter sleep to prevent overloaded conditions during intervals
-// https://www.awsarchitectureblog.com/2015/03/backoff.html
-func RetryBackoff(retry int, minBackoff, maxBackoff time.Duration) time.Duration {
-	if retry < 0 {
-		retry = 0
-	}
-
-	backoff := minBackoff << uint(retry)
-	if backoff > maxBackoff || backoff < minBackoff {
-		backoff = maxBackoff
-	}
-
-	if backoff == 0 {
-		return 0
-	}
-	return time.Duration(rand.Int63n(int64(backoff)))
-}
diff --git a/vendor/github.com/go-redis/redis/v7/internal/log.go b/vendor/github.com/go-redis/redis/v7/internal/log.go
deleted file mode 100644
index 405a2728d6..0000000000
--- a/vendor/github.com/go-redis/redis/v7/internal/log.go
+++ /dev/null
@@ -1,8 +0,0 @@
-package internal
-
-import (
-	"log"
-	"os"
-)
-
-var Logger = log.New(os.Stderr, "redis: ", log.LstdFlags|log.Lshortfile)
diff --git a/vendor/github.com/go-redis/redis/v7/internal/pool/pool_sticky.go b/vendor/github.com/go-redis/redis/v7/internal/pool/pool_sticky.go
deleted file mode 100644
index d4a355a44f..0000000000
--- a/vendor/github.com/go-redis/redis/v7/internal/pool/pool_sticky.go
+++ /dev/null
@@ -1,112 +0,0 @@
-package pool
-
-import (
-	"context"
-	"sync"
-)
-
-type StickyConnPool struct {
-	pool     *ConnPool
-	reusable bool
-
-	cn     *Conn
-	closed bool
-	mu     sync.Mutex
-}
-
-var _ Pooler = (*StickyConnPool)(nil)
-
-func NewStickyConnPool(pool *ConnPool, reusable bool) *StickyConnPool {
-	return &StickyConnPool{
-		pool:     pool,
-		reusable: reusable,
-	}
-}
-
-func (p *StickyConnPool) NewConn(context.Context) (*Conn, error) {
-	panic("not implemented")
-}
-
-func (p *StickyConnPool) CloseConn(*Conn) error {
-	panic("not implemented")
-}
-
-func (p *StickyConnPool) Get(ctx context.Context) (*Conn, error) {
-	p.mu.Lock()
-	defer p.mu.Unlock()
-
-	if p.closed {
-		return nil, ErrClosed
-	}
-	if p.cn != nil {
-		return p.cn, nil
-	}
-
-	cn, err := p.pool.Get(ctx)
-	if err != nil {
-		return nil, err
-	}
-
-	p.cn = cn
-	return cn, nil
-}
-
-func (p *StickyConnPool) putUpstream() {
-	p.pool.Put(p.cn)
-	p.cn = nil
-}
-
-func (p *StickyConnPool) Put(cn *Conn) {}
-
-func (p *StickyConnPool) removeUpstream(reason error) {
-	p.pool.Remove(p.cn, reason)
-	p.cn = nil
-}
-
-func (p *StickyConnPool) Remove(cn *Conn, reason error) {
-	p.removeUpstream(reason)
-}
-
-func (p *StickyConnPool) Len() int {
-	p.mu.Lock()
-	defer p.mu.Unlock()
-
-	if p.cn == nil {
-		return 0
-	}
-	return 1
-}
-
-func (p *StickyConnPool) IdleLen() int {
-	p.mu.Lock()
-	defer p.mu.Unlock()
-
-	if p.cn == nil {
-		return 1
-	}
-	return 0
-}
-
-func (p *StickyConnPool) Stats() *Stats {
-	return nil
-}
-
-func (p *StickyConnPool) Close() error {
-	p.mu.Lock()
-	defer p.mu.Unlock()
-
-	if p.closed {
-		return ErrClosed
-	}
-	p.closed = true
-
-	if p.cn != nil {
-		if p.reusable {
-			p.putUpstream()
-		} else {
-			p.removeUpstream(ErrClosed)
-		}
-	}
-
-	return nil
-}
diff --git a/vendor/github.com/go-redis/redis/v7/internal/util.go b/vendor/github.com/go-redis/redis/v7/internal/util.go
deleted file mode 100644
index 844f34bad8..0000000000
--- a/vendor/github.com/go-redis/redis/v7/internal/util.go
+++ /dev/null
@@ -1,56 +0,0 @@
-package internal
-
-import (
-	"context"
-	"time"
-
-	"github.com/go-redis/redis/v7/internal/util"
-)
-
-func Sleep(ctx context.Context, dur time.Duration) error {
-	t := time.NewTimer(dur)
-	defer t.Stop()
-
-	select {
-	case <-t.C:
-		return nil
-	case <-ctx.Done():
-		return ctx.Err()
-	}
-}
-
-func ToLower(s string) string {
-	if isLower(s) {
-		return s
-	}
-
-	b := make([]byte, len(s))
-	for i := range b {
-		c := s[i]
-		if c >= 'A' && c <= 'Z' {
-			c += 'a' - 'A'
-		}
-		b[i] = c
-	}
-	return util.BytesToString(b)
-}
-
-func isLower(s string) bool {
-	for i := 0; i < len(s); i++ {
-		c := s[i]
-		if c >= 'A' && c <= 'Z' {
-			return false
-		}
-	}
-	return true
-}
-
-func Unwrap(err error) error {
-	u, ok := err.(interface {
-		Unwrap() error
-	})
-	if !ok {
-		return nil
-	}
-	return u.Unwrap()
-}
diff --git a/vendor/github.com/go-redis/redis/v7/script.go b/vendor/github.com/go-redis/redis/v7/script.go
deleted file mode 100644
index 88b7d0a2ea..0000000000
--- a/vendor/github.com/go-redis/redis/v7/script.go
+++ /dev/null
@@ -1,62 +0,0 @@
-package redis
-
-import (
-	"crypto/sha1"
-	"encoding/hex"
-	"io"
-	"strings"
-)
-
-type scripter interface {
-	Eval(script string, keys []string, args ...interface{}) *Cmd
-	EvalSha(sha1 string, keys []string, args ...interface{}) *Cmd
-	ScriptExists(hashes ...string) *BoolSliceCmd
-	ScriptLoad(script string) *StringCmd
-}
-
-var _ scripter = (*Client)(nil)
-var _ scripter = (*Ring)(nil)
-var _ scripter = (*ClusterClient)(nil)
-
-type Script struct {
-	src, hash string
-}
-
-func NewScript(src string) *Script {
-	h := sha1.New()
-	_, _ = io.WriteString(h, src)
-	return &Script{
-		src:  src,
-		hash: hex.EncodeToString(h.Sum(nil)),
-	}
-}
-
-func (s *Script) Hash() string {
-	return s.hash
-}
-
-func (s *Script) Load(c scripter) *StringCmd {
-	return c.ScriptLoad(s.src)
-}
-
-func (s *Script) Exists(c scripter) *BoolSliceCmd {
-	return c.ScriptExists(s.hash)
-}
-
-func (s *Script) Eval(c scripter, keys []string, args ...interface{}) *Cmd {
-	return c.Eval(s.src, keys, args...)
-}
-
-func (s *Script) EvalSha(c scripter, keys []string, args ...interface{}) *Cmd {
-	return c.EvalSha(s.hash, keys, args...)
-}
-
-// Run optimistically uses EVALSHA to run the script. If script does not exist
-// it is retried using EVAL.
-func (s *Script) Run(c scripter, keys []string, args ...interface{}) *Cmd {
-	r := s.EvalSha(c, keys, args...)
-	if err := r.Err(); err != nil && strings.HasPrefix(err.Error(), "NOSCRIPT ") {
-		return s.Eval(c, keys, args...)
-	}
-	return r
-}
diff --git a/vendor/github.com/go-redis/redis/v7/sentinel.go b/vendor/github.com/go-redis/redis/v7/sentinel.go
deleted file mode 100644
index 8aa40ef799..0000000000
--- a/vendor/github.com/go-redis/redis/v7/sentinel.go
+++ /dev/null
@@ -1,509 +0,0 @@
-package redis
-
-import (
-	"context"
-	"crypto/tls"
-	"errors"
-	"net"
-	"strings"
-	"sync"
-	"time"
-
-	"github.com/go-redis/redis/v7/internal"
-	"github.com/go-redis/redis/v7/internal/pool"
-)
-
-//------------------------------------------------------------------------------
-
-// FailoverOptions are used to configure a failover client and should
-// be passed to NewFailoverClient.
-type FailoverOptions struct {
-	// The master name.
-	MasterName string
-	// A seed list of host:port addresses of sentinel nodes.
-	SentinelAddrs    []string
-	SentinelUsername string
-	SentinelPassword string
-
-	// Following options are copied from Options struct.
-
-	Dialer    func(ctx context.Context, network, addr string) (net.Conn, error)
-	OnConnect func(*Conn) error
-
-	Username string
-	Password string
-	DB       int
-
-	MaxRetries      int
-	MinRetryBackoff time.Duration
-	MaxRetryBackoff time.Duration
-
-	DialTimeout  time.Duration
-	ReadTimeout  time.Duration
-	WriteTimeout time.Duration
-
-	PoolSize           int
-	MinIdleConns       int
-	MaxConnAge         time.Duration
-	PoolTimeout        time.Duration
-	IdleTimeout        time.Duration
-	IdleCheckFrequency time.Duration
-
-	TLSConfig *tls.Config
-}
-
-func (opt *FailoverOptions) options() *Options {
-	return &Options{
-		Addr:      "FailoverClient",
-		Dialer:    opt.Dialer,
-		OnConnect: opt.OnConnect,
-
-		DB:       opt.DB,
-		Username: opt.Username,
-		Password: opt.Password,
-
-		MaxRetries:      opt.MaxRetries,
-		MinRetryBackoff: opt.MinRetryBackoff,
-		MaxRetryBackoff: opt.MaxRetryBackoff,
-
-		DialTimeout:  opt.DialTimeout,
-		ReadTimeout:  opt.ReadTimeout,
-		WriteTimeout: opt.WriteTimeout,
-
-		PoolSize:           opt.PoolSize,
-		PoolTimeout:        opt.PoolTimeout,
-		IdleTimeout:        opt.IdleTimeout,
-		IdleCheckFrequency: opt.IdleCheckFrequency,
-		MinIdleConns:       opt.MinIdleConns,
-		MaxConnAge:         opt.MaxConnAge,
-
-		TLSConfig: opt.TLSConfig,
-	}
-}
-
-// NewFailoverClient returns a Redis client that uses Redis Sentinel
-// for automatic failover. It's safe for concurrent use by multiple
-// goroutines.
-func NewFailoverClient(failoverOpt *FailoverOptions) *Client {
-	opt := failoverOpt.options()
-	opt.init()
-
-	failover := &sentinelFailover{
-		masterName:    failoverOpt.MasterName,
-		sentinelAddrs: failoverOpt.SentinelAddrs,
-		username:      failoverOpt.SentinelUsername,
-		password:      failoverOpt.SentinelPassword,
-
-		opt: opt,
-	}
-
-	c := Client{
-		baseClient: newBaseClient(opt, failover.Pool()),
-		ctx:        context.Background(),
-	}
-	c.cmdable = c.Process
-	c.onClose = failover.Close
-
-	return &c
-}
-
-//------------------------------------------------------------------------------
-
-type SentinelClient struct {
-	*baseClient
-	ctx context.Context
-}
-
-func NewSentinelClient(opt *Options) *SentinelClient {
-	opt.init()
-	c := &SentinelClient{
-		baseClient: &baseClient{
-			opt:      opt,
-			connPool: newConnPool(opt),
-		},
-		ctx: context.Background(),
-	}
-	return c
-}
-
-func (c *SentinelClient) Context() context.Context {
-	return c.ctx
-}
-
-func (c *SentinelClient) WithContext(ctx context.Context) *SentinelClient {
-	if ctx == nil {
-		panic("nil context")
-	}
-	clone := *c
-	clone.ctx = ctx
-	return &clone
-}
-
-func (c *SentinelClient) Process(cmd Cmder) error {
-	return c.ProcessContext(c.ctx, cmd)
-}
-
-func (c *SentinelClient) ProcessContext(ctx context.Context, cmd Cmder) error {
-	return c.baseClient.process(ctx, cmd)
-}
-
-func (c *SentinelClient) pubSub() *PubSub {
-	pubsub := &PubSub{
-		opt: c.opt,
-
-		newConn: func(channels []string) (*pool.Conn, error) {
-			return c.newConn(context.TODO())
-		},
-		closeConn: c.connPool.CloseConn,
-	}
-	pubsub.init()
-	return pubsub
-}
-
-// Ping is used to test if a connection is still alive, or to
-// measure latency.
-func (c *SentinelClient) Ping() *StringCmd {
-	cmd := NewStringCmd("ping")
-	_ = c.Process(cmd)
-	return cmd
-}
-
-// Subscribe subscribes the client to the specified channels.
-// Channels can be omitted to create empty subscription.
-func (c *SentinelClient) Subscribe(channels ...string) *PubSub {
-	pubsub := c.pubSub()
-	if len(channels) > 0 {
-		_ = pubsub.Subscribe(channels...)
-	}
-	return pubsub
-}
-
-// PSubscribe subscribes the client to the given patterns.
-// Patterns can be omitted to create empty subscription.
-func (c *SentinelClient) PSubscribe(channels ...string) *PubSub {
-	pubsub := c.pubSub()
-	if len(channels) > 0 {
-		_ = pubsub.PSubscribe(channels...)
-	}
-	return pubsub
-}
-
-func (c *SentinelClient) GetMasterAddrByName(name string) *StringSliceCmd {
-	cmd := NewStringSliceCmd("sentinel", "get-master-addr-by-name", name)
-	_ = c.Process(cmd)
-	return cmd
-}
-
-func (c *SentinelClient) Sentinels(name string) *SliceCmd {
-	cmd := NewSliceCmd("sentinel", "sentinels", name)
-	_ = c.Process(cmd)
-	return cmd
-}
-
-// Failover forces a failover as if the master was not reachable, and without
-// asking for agreement to other Sentinels.
-func (c *SentinelClient) Failover(name string) *StatusCmd {
-	cmd := NewStatusCmd("sentinel", "failover", name)
-	_ = c.Process(cmd)
-	return cmd
-}
-
-// Reset resets all the masters with matching name. The pattern argument is a
-// glob-style pattern. The reset process clears any previous state in a master
-// (including a failover in progress), and removes every slave and sentinel
-// already discovered and associated with the master.
-func (c *SentinelClient) Reset(pattern string) *IntCmd {
-	cmd := NewIntCmd("sentinel", "reset", pattern)
-	_ = c.Process(cmd)
-	return cmd
-}
-
-// FlushConfig forces Sentinel to rewrite its configuration on disk, including
-// the current Sentinel state.
-func (c *SentinelClient) FlushConfig() *StatusCmd {
-	cmd := NewStatusCmd("sentinel", "flushconfig")
-	_ = c.Process(cmd)
-	return cmd
-}
-
-// Master shows the state and info of the specified master.
-func (c *SentinelClient) Master(name string) *StringStringMapCmd {
-	cmd := NewStringStringMapCmd("sentinel", "master", name)
-	_ = c.Process(cmd)
-	return cmd
-}
-
-// Masters shows a list of monitored masters and their state.
-func (c *SentinelClient) Masters() *SliceCmd {
-	cmd := NewSliceCmd("sentinel", "masters")
-	_ = c.Process(cmd)
-	return cmd
-}
-
-// Slaves shows a list of slaves for the specified master and their state.
-func (c *SentinelClient) Slaves(name string) *SliceCmd {
-	cmd := NewSliceCmd("sentinel", "slaves", name)
-	_ = c.Process(cmd)
-	return cmd
-}
-
-// CkQuorum checks if the current Sentinel configuration is able to reach the
-// quorum needed to failover a master, and the majority needed to authorize the
-// failover. This command should be used in monitoring systems to check if a
-// Sentinel deployment is ok.
-func (c *SentinelClient) CkQuorum(name string) *StringCmd {
-	cmd := NewStringCmd("sentinel", "ckquorum", name)
-	_ = c.Process(cmd)
-	return cmd
-}
-
-// Monitor tells the Sentinel to start monitoring a new master with the specified
-// name, ip, port, and quorum.
-func (c *SentinelClient) Monitor(name, ip, port, quorum string) *StringCmd {
-	cmd := NewStringCmd("sentinel", "monitor", name, ip, port, quorum)
-	_ = c.Process(cmd)
-	return cmd
-}
-
-// Set is used in order to change configuration parameters of a specific master.
-func (c *SentinelClient) Set(name, option, value string) *StringCmd {
-	cmd := NewStringCmd("sentinel", "set", name, option, value)
-	_ = c.Process(cmd)
-	return cmd
-}
-
-// Remove is used in order to remove the specified master: the master will no
-// longer be monitored, and will totally be removed from the internal state of
-// the Sentinel.
-func (c *SentinelClient) Remove(name string) *StringCmd {
-	cmd := NewStringCmd("sentinel", "remove", name)
-	_ = c.Process(cmd)
-	return cmd
-}
-
-type sentinelFailover struct {
-	sentinelAddrs []string
-
-	opt      *Options
-	username string
-	password string
-
-	pool     *pool.ConnPool
-	poolOnce sync.Once
-
-	mu          sync.RWMutex
-	masterName  string
-	_masterAddr string
-	sentinel    *SentinelClient
-	pubsub      *PubSub
-}
-
-func (c *sentinelFailover) Close() error {
-	c.mu.Lock()
-	defer c.mu.Unlock()
-	if c.sentinel != nil {
-		return c.closeSentinel()
-	}
-	return nil
-}
-
-func (c *sentinelFailover) closeSentinel() error {
-	firstErr := c.pubsub.Close()
-	c.pubsub = nil
-
-	err := c.sentinel.Close()
-	if err != nil && firstErr == nil {
-		firstErr = err
-	}
-	c.sentinel = nil
-
-	return firstErr
-}
-
-func (c *sentinelFailover) Pool() *pool.ConnPool {
-	c.poolOnce.Do(func() {
-		opt := *c.opt
-		opt.Dialer = c.dial
-		c.pool = newConnPool(&opt)
-	})
-	return c.pool
-}
-
-func (c *sentinelFailover) dial(ctx context.Context, network, _ string) (net.Conn, error) {
-	addr, err := c.MasterAddr()
-	if err != nil {
-		return nil, err
-	}
-	if c.opt.Dialer != nil {
-		return c.opt.Dialer(ctx, network, addr)
-	}
-	return net.DialTimeout("tcp", addr, c.opt.DialTimeout)
-}
-
-func (c *sentinelFailover) MasterAddr() (string, error) {
-	addr, err := c.masterAddr()
-	if err != nil {
-		return "", err
-	}
-	c.switchMaster(addr)
-	return addr, nil
-}
-
-func (c *sentinelFailover) masterAddr() (string, error) {
-	c.mu.RLock()
-	sentinel := c.sentinel
-	c.mu.RUnlock()
-
-	if sentinel != nil {
-		addr := c.getMasterAddr(sentinel)
-		if addr != "" {
-			return addr, nil
-		}
-	}
-
-	c.mu.Lock()
-	defer c.mu.Unlock()
-
-	if c.sentinel != nil {
-		addr := c.getMasterAddr(c.sentinel)
-		if addr != "" {
-			return addr, nil
-		}
-		_ = c.closeSentinel()
-	}
-
-	for i, sentinelAddr := range c.sentinelAddrs {
-		sentinel := NewSentinelClient(&Options{
-			Addr:   sentinelAddr,
-			Dialer: c.opt.Dialer,
-
-			Username: c.username,
-			Password: c.password,
-
-			MaxRetries: c.opt.MaxRetries,
-
-			DialTimeout:  c.opt.DialTimeout,
-			ReadTimeout:  c.opt.ReadTimeout,
-			WriteTimeout: c.opt.WriteTimeout,
-
-			PoolSize:           c.opt.PoolSize,
-			PoolTimeout:        c.opt.PoolTimeout,
-			IdleTimeout:        c.opt.IdleTimeout,
-			IdleCheckFrequency: c.opt.IdleCheckFrequency,
-
-			TLSConfig: c.opt.TLSConfig,
-		})
-
-		masterAddr, err := sentinel.GetMasterAddrByName(c.masterName).Result()
-		if err != nil {
-			internal.Logger.Printf("sentinel: GetMasterAddrByName master=%q failed: %s",
-				c.masterName, err)
-			_ = sentinel.Close()
-			continue
-		}
-
-		// Push working sentinel to the top.
-		c.sentinelAddrs[0], c.sentinelAddrs[i] = c.sentinelAddrs[i], c.sentinelAddrs[0]
-		c.setSentinel(sentinel)
-
-		addr := net.JoinHostPort(masterAddr[0], masterAddr[1])
-		return addr, nil
-	}
-
-	return "", errors.New("redis: all sentinels are unreachable")
-}
-
-func (c *sentinelFailover) getMasterAddr(sentinel *SentinelClient) string {
-	addr, err := sentinel.GetMasterAddrByName(c.masterName).Result()
-	if err != nil {
-		internal.Logger.Printf("sentinel: GetMasterAddrByName name=%q failed: %s",
-			c.masterName, err)
-		return ""
-	}
-	return net.JoinHostPort(addr[0], addr[1])
-}
-
-func (c *sentinelFailover) switchMaster(addr string) {
-	c.mu.RLock()
-	masterAddr := c._masterAddr
-	c.mu.RUnlock()
-	if masterAddr == addr {
-		return
-	}
-
-	c.mu.Lock()
-	defer c.mu.Unlock()
-
-	if c._masterAddr == addr {
-		return
-	}
-
-	internal.Logger.Printf("sentinel: new master=%q addr=%q",
-		c.masterName, addr)
-	_ = c.Pool().Filter(func(cn *pool.Conn) bool {
-		return cn.RemoteAddr().String() != addr
-	})
-	c._masterAddr = addr
-}
-
-func (c *sentinelFailover) setSentinel(sentinel *SentinelClient) {
-	if c.sentinel != nil {
-		panic("not reached")
-	}
-	c.sentinel = sentinel
-	c.discoverSentinels()
-
-	c.pubsub = sentinel.Subscribe("+switch-master")
-	go c.listen(c.pubsub)
-}
-
-func (c *sentinelFailover) discoverSentinels() {
-	sentinels, err := c.sentinel.Sentinels(c.masterName).Result()
-	if err != nil {
-		internal.Logger.Printf("sentinel: Sentinels master=%q failed: %s", c.masterName, err)
-		return
-	}
-	for _, sentinel := range sentinels {
-		vals := sentinel.([]interface{})
-		for i := 0; i < len(vals); i += 2 {
-			key := vals[i].(string)
-			if key == "name" {
-				sentinelAddr := vals[i+1].(string)
-				if !contains(c.sentinelAddrs, sentinelAddr) {
-					internal.Logger.Printf("sentinel: discovered new sentinel=%q for master=%q",
-						sentinelAddr, c.masterName)
-					c.sentinelAddrs = append(c.sentinelAddrs, sentinelAddr)
-				}
-			}
-		}
-	}
-}
-
-func (c *sentinelFailover) listen(pubsub *PubSub) {
-	ch := pubsub.Channel()
-	for {
-		msg, ok := <-ch
-		if !ok {
-			break
-		}
-
-		if msg.Channel == "+switch-master" {
-			parts := strings.Split(msg.Payload, " ")
-			if parts[0] != c.masterName {
-				internal.Logger.Printf("sentinel: ignore addr for master=%q", parts[0])
-				continue
-			}
-			addr := net.JoinHostPort(parts[3], parts[4])
-			c.switchMaster(addr)
-		}
-	}
-}
-
-func contains(slice []string, str string) bool {
-	for _, s := range slice {
-		if s == str {
-			return true
-		}
-	}
-	return false
-}
diff --git a/vendor/github.com/go-redis/redis/v7/.gitignore b/vendor/github.com/go-redis/redis/v8/.gitignore
index ebfe903bcd..b975a7b4c3 100644
--- a/vendor/github.com/go-redis/redis/v7/.gitignore
+++ b/vendor/github.com/go-redis/redis/v8/.gitignore
@@ -1,2 +1,3 @@
 *.rdb
 testdata/*/
+.idea/
diff --git a/vendor/github.com/go-redis/redis/v7/.golangci.yml b/vendor/github.com/go-redis/redis/v8/.golangci.yml
index 912dab1ef3..b88b2b9b57 100644
--- a/vendor/github.com/go-redis/redis/v7/.golangci.yml
+++ b/vendor/github.com/go-redis/redis/v8/.golangci.yml
@@ -7,9 +7,18 @@ linters:
   disable:
     - funlen
     - gochecknoglobals
+    - gochecknoinits
     - gocognit
     - goconst
     - godox
     - gosec
     - maligned
     - wsl
+    - gomnd
+    - goerr113
+    - exhaustive
+    - nestif
+    - nlreturn
+    - exhaustivestruct
+    - wrapcheck
+    - errorlint
diff --git a/vendor/github.com/go-redis/redis/v8/.prettierrc b/vendor/github.com/go-redis/redis/v8/.prettierrc
new file mode 100644
index 0000000000..8b7f044ad1
--- /dev/null
+++ b/vendor/github.com/go-redis/redis/v8/.prettierrc
@@ -0,0 +1,4 @@
+semi: false
+singleQuote: true
+proseWrap: always
+printWidth: 100
diff --git a/vendor/github.com/go-redis/redis/v8/.travis.yml b/vendor/github.com/go-redis/redis/v8/.travis.yml
new file mode 100644
index 0000000000..a221d84dba
--- /dev/null
+++ b/vendor/github.com/go-redis/redis/v8/.travis.yml
@@ -0,0 +1,20 @@
+dist: xenial
+language: go
+
+services:
+  - redis-server
+
+go:
+  - 1.14.x
+  - 1.15.x
+  - tip
+
+matrix:
+  allow_failures:
+    - go: tip
+
+go_import_path: github.com/go-redis/redis
+
+before_install:
+  - curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s --
+    -b $(go env GOPATH)/bin v1.32.2
diff --git a/vendor/github.com/go-redis/redis/v8/CHANGELOG.md b/vendor/github.com/go-redis/redis/v8/CHANGELOG.md
new file mode 100644
index 0000000000..8392d54859
--- /dev/null
+++ b/vendor/github.com/go-redis/redis/v8/CHANGELOG.md
@@ -0,0 +1,5 @@
+# Changelog
+
+> :heart: [**Uptrace.dev** - distributed traces, logs, and errors in one place](https://uptrace.dev)
+
+See https://redis.uptrace.dev/changelog/
diff --git a/vendor/github.com/go-redis/redis/v7/LICENSE b/vendor/github.com/go-redis/redis/v8/LICENSE
index 298bed9bea..298bed9bea 100644
--- a/vendor/github.com/go-redis/redis/v7/LICENSE
+++ b/vendor/github.com/go-redis/redis/v8/LICENSE
diff --git a/vendor/github.com/go-redis/redis/v7/Makefile b/vendor/github.com/go-redis/redis/v8/Makefile
index 86609c6e07..d5d5d1900f 100644
--- a/vendor/github.com/go-redis/redis/v7/Makefile
+++ b/vendor/github.com/go-redis/redis/v8/Makefile
@@ -3,6 +3,7 @@ all: testdeps
 	go test ./... -short -race
 	go test ./... -run=NONE -bench=. -benchmem
 	env GOOS=linux GOARCH=386 go test ./...
+	go vet
 	golangci-lint run
 
 testdeps: testdata/redis/src/redis-server
@@ -18,3 +19,9 @@ testdata/redis:
 
 testdata/redis/src/redis-server: testdata/redis
 	cd $< && make all
+
+tag:
+	git tag $(VERSION)
+	git tag extra/rediscmd/$(VERSION)
+	git tag extra/redisotel/$(VERSION)
+	git tag extra/rediscensus/$(VERSION)
diff --git a/vendor/github.com/go-redis/redis/v8/README.md b/vendor/github.com/go-redis/redis/v8/README.md
new file mode 100644
index 0000000000..e086653665
--- /dev/null
+++ b/vendor/github.com/go-redis/redis/v8/README.md
@@ -0,0 +1,159 @@
+# Redis client for Golang
+
+[![Build Status](https://travis-ci.org/go-redis/redis.png?branch=master)](https://travis-ci.org/go-redis/redis)
+[![PkgGoDev](https://pkg.go.dev/badge/github.com/go-redis/redis/v8)](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc)
+[![Documentation](https://img.shields.io/badge/redis-documentation-informational)](https://redis.uptrace.dev/)
+[![Chat](https://discordapp.com/api/guilds/752070105847955518/widget.png)](https://discord.gg/rWtp5Aj)
+
+> :heart: [**Uptrace.dev** - distributed traces, logs, and errors in one place](https://uptrace.dev)
+
+- Join [Discord](https://discord.gg/rWtp5Aj) to ask questions.
+- [Documentation](https://redis.uptrace.dev)
+- [Reference](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc)
+- [Examples](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc#pkg-examples)
+- [RealWorld example app](https://github.com/uptrace/go-treemux-realworld-example-app)
+
+## Ecosystem
+
+- [Redis Mock](https://github.com/go-redis/redismock).
+- [Distributed Locks](https://github.com/bsm/redislock).
+- [Redis Cache](https://github.com/go-redis/cache).
+- [Rate limiting](https://github.com/go-redis/redis_rate).
+
+## Features
+
+- Redis 3 commands except QUIT, MONITOR, and SYNC.
+- Automatic connection pooling with
+  [circuit breaker](https://en.wikipedia.org/wiki/Circuit_breaker_design_pattern) support.
+- [Pub/Sub](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc#PubSub).
+- [Transactions](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc#example-Client-TxPipeline).
+- [Pipeline](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc#example-Client-Pipeline) and
+  [TxPipeline](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc#example-Client-TxPipeline).
+- [Scripting](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc#Script).
+- [Timeouts](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc#Options).
+- [Redis Sentinel](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc#NewFailoverClient).
+- [Redis Cluster](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc#NewClusterClient).
+- [Cluster of Redis Servers](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc#example-NewClusterClient--ManualSetup)
+  without using cluster mode and Redis Sentinel.
+- [Ring](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc#NewRing).
+- [Instrumentation](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc#ex-package--Instrumentation).
+
+## Installation
+
+go-redis supports 2 last Go versions and requires a Go version with
+[modules](https://github.com/golang/go/wiki/Modules) support. So make sure to initialize a Go
+module:
+
+```shell
+go mod init github.com/my/repo
+```
+
+And then install go-redis/v8 (note _v8_ in the import; omitting it is a popular mistake):
+
+```shell
+go get github.com/go-redis/redis/v8
+```
+
+## Quickstart
+
+```go
+import (
+    "context"
+    "github.com/go-redis/redis/v8"
+)
+
+var ctx = context.Background()
+
+func ExampleClient() {
+    rdb := redis.NewClient(&redis.Options{
+        Addr:     "localhost:6379",
+        Password: "", // no password set
+        DB:       0,  // use default DB
+    })
+
+    err := rdb.Set(ctx, "key", "value", 0).Err()
+    if err != nil {
+        panic(err)
+    }
+
+    val, err := rdb.Get(ctx, "key").Result()
+    if err != nil {
+        panic(err)
+    }
+    fmt.Println("key", val)
+
+    val2, err := rdb.Get(ctx, "key2").Result()
+    if err == redis.Nil {
+        fmt.Println("key2 does not exist")
+    } else if err != nil {
+        panic(err)
+    } else {
+        fmt.Println("key2", val2)
+    }
+    // Output: key value
+    // key2 does not exist
+}
+```
+
+## Look and feel
+
+Some corner cases:
+
+```go
+// SET key value EX 10 NX
+set, err := rdb.SetNX(ctx, "key", "value", 10*time.Second).Result()
+
+// SET key value keepttl NX
+set, err := rdb.SetNX(ctx, "key", "value", redis.KeepTTL).Result()
+
+// SORT list LIMIT 0 2 ASC
+vals, err := rdb.Sort(ctx, "list", &redis.Sort{Offset: 0, Count: 2, Order: "ASC"}).Result()
+
+// ZRANGEBYSCORE zset -inf +inf WITHSCORES LIMIT 0 2
+vals, err := rdb.ZRangeByScoreWithScores(ctx, "zset", &redis.ZRangeBy{
+    Min: "-inf",
+    Max: "+inf",
+    Offset: 0,
+    Count: 2,
+}).Result()
+
+// ZINTERSTORE out 2 zset1 zset2 WEIGHTS 2 3 AGGREGATE SUM
+vals, err := rdb.ZInterStore(ctx, "out", &redis.ZStore{
+    Keys: []string{"zset1", "zset2"},
+    Weights: []int64{2, 3}
+}).Result()
+
+// EVAL "return {KEYS[1],ARGV[1]}" 1 "key" "hello"
+vals, err := rdb.Eval(ctx, "return {KEYS[1],ARGV[1]}", []string{"key"}, "hello").Result()
+
+// custom command
+res, err := rdb.Do(ctx, "set", "key", "value").Result()
+```
+## Run the test
+go-redis will start a redis-server and run the test cases. 
+
+The paths of redis-server bin file and redis config file are definded in `main_test.go`:
+```
+var (
+	redisServerBin, _  = filepath.Abs(filepath.Join("testdata", "redis", "src", "redis-server"))
+	redisServerConf, _ = filepath.Abs(filepath.Join("testdata", "redis", "redis.conf"))
+)
+```
+
+For local testing, you can change the variables to refer to your local files, or create a soft link to the corresponding folder for redis-server and copy the config file to `testdata/redis/`:
+```
+ln -s /usr/bin/redis-server ./go-redis/testdata/redis/src
+cp ./go-redis/testdata/redis.conf ./go-redis/testdata/redis/
+```
+
+Lastly, run:
+```
+go test
+```
+
+## See also
+
+- [Fast and flexible HTTP router](https://github.com/vmihailenco/treemux)
+- [Golang PostgreSQL ORM](https://github.com/go-pg/pg)
+- [Golang msgpack](https://github.com/vmihailenco/msgpack)
+- [Golang message task queue](https://github.com/vmihailenco/taskq)
diff --git a/vendor/github.com/go-redis/redis/v7/cluster.go b/vendor/github.com/go-redis/redis/v8/cluster.go
index 1907de6c41..2ce475c414 100644
--- a/vendor/github.com/go-redis/redis/v7/cluster.go
+++ b/vendor/github.com/go-redis/redis/v8/cluster.go
@@ -5,7 +5,6 @@ import (
 	"crypto/tls"
 	"fmt"
 	"math"
-	"math/rand"
 	"net"
 	"runtime"
 	"sort"
@@ -13,10 +12,11 @@ import (
 	"sync/atomic"
 	"time"
 
-	"github.com/go-redis/redis/v7/internal"
-	"github.com/go-redis/redis/v7/internal/hashtag"
-	"github.com/go-redis/redis/v7/internal/pool"
-	"github.com/go-redis/redis/v7/internal/proto"
+	"github.com/go-redis/redis/v8/internal"
+	"github.com/go-redis/redis/v8/internal/hashtag"
+	"github.com/go-redis/redis/v8/internal/pool"
+	"github.com/go-redis/redis/v8/internal/proto"
+	"github.com/go-redis/redis/v8/internal/rand"
 )
 
 var errClusterNoNodes = fmt.Errorf("redis: cluster has no nodes")
@@ -27,9 +27,12 @@ type ClusterOptions struct {
 	// A seed list of host:port addresses of cluster nodes.
 	Addrs []string
 
+	// NewClient creates a cluster node client with provided name and options.
+	NewClient func(opt *Options) *Client
+
 	// The maximum number of retries before giving up. Command is retried
 	// on network errors and MOVED/ASK redirects.
-	// Default is 8 retries.
+	// Default is 3 retries.
 	MaxRedirects int
 
 	// Enables read-only commands on slave nodes.
@@ -46,16 +49,13 @@ type ClusterOptions struct {
 	// and load-balance read/write operations between master and slaves.
 	// It can use service like ZooKeeper to maintain configuration information
 	// and Cluster.ReloadState to manually trigger state reloading.
-	ClusterSlots func() ([]ClusterSlot, error)
-
-	// Optional hook that is called when a new node is created.
-	OnNewNode func(*Client)
+	ClusterSlots func(context.Context) ([]ClusterSlot, error)
 
 	// Following options are copied from Options struct.
 
 	Dialer func(ctx context.Context, network, addr string) (net.Conn, error)
 
-	OnConnect func(*Conn) error
+	OnConnect func(ctx context.Context, cn *Conn) error
 
 	Username string
 	Password string
@@ -68,9 +68,6 @@ type ClusterOptions struct {
 	ReadTimeout  time.Duration
 	WriteTimeout time.Duration
 
-	// NewClient creates a cluster node client with provided name and options.
-	NewClient func(opt *Options) *Client
-
 	// PoolSize applies per cluster node and not for the whole cluster.
 	PoolSize           int
 	MinIdleConns       int
@@ -86,10 +83,10 @@ func (opt *ClusterOptions) init() {
 	if opt.MaxRedirects == -1 {
 		opt.MaxRedirects = 0
 	} else if opt.MaxRedirects == 0 {
-		opt.MaxRedirects = 8
+		opt.MaxRedirects = 3
 	}
 
-	if (opt.RouteByLatency || opt.RouteRandomly) && opt.ClusterSlots == nil {
+	if opt.RouteByLatency || opt.RouteRandomly {
 		opt.ReadOnly = true
 	}
 
@@ -110,6 +107,9 @@ func (opt *ClusterOptions) init() {
 		opt.WriteTimeout = opt.ReadTimeout
 	}
 
+	if opt.MaxRetries == 0 {
+		opt.MaxRetries = -1
+	}
 	switch opt.MinRetryBackoff {
 	case -1:
 		opt.MinRetryBackoff = 0
@@ -135,12 +135,12 @@ func (opt *ClusterOptions) clientOptions() *Options {
 		Dialer:    opt.Dialer,
 		OnConnect: opt.OnConnect,
 
+		Username: opt.Username,
+		Password: opt.Password,
+
 		MaxRetries:      opt.MaxRetries,
 		MinRetryBackoff: opt.MinRetryBackoff,
 		MaxRetryBackoff: opt.MaxRetryBackoff,
-		Username:        opt.Username,
-		Password:        opt.Password,
-		readOnly:        opt.ReadOnly,
 
 		DialTimeout:  opt.DialTimeout,
 		ReadTimeout:  opt.ReadTimeout,
@@ -154,6 +154,12 @@ func (opt *ClusterOptions) clientOptions() *Options {
 		IdleCheckFrequency: disableIdleCheck,
 
 		TLSConfig: opt.TLSConfig,
+		// If ClusterSlots is populated, then we probably have an artificial
+		// cluster whose nodes are not in clustering mode (otherwise there isn't
+		// much use for ClusterSlots config).  This means we cannot execute the
+		// READONLY command against that node -- setting readOnly to false in such
+		// situations in the options below will prevent that from happening.
+		readOnly: opt.ReadOnly && opt.ClusterSlots == nil,
 	}
 }
 
@@ -179,10 +185,6 @@ func newClusterNode(clOpt *ClusterOptions, addr string) *clusterNode {
 		go node.updateLatency()
 	}
 
-	if clOpt.OnNewNode != nil {
-		clOpt.OnNewNode(node.Client)
-	}
-
 	return &node
 }
 
@@ -195,16 +197,19 @@ func (n *clusterNode) Close() error {
 }
 
 func (n *clusterNode) updateLatency() {
-	const probes = 10
+	const numProbe = 10
+	var dur uint64
+
+	for i := 0; i < numProbe; i++ {
+		time.Sleep(time.Duration(10+rand.Intn(10)) * time.Millisecond)
 
-	var latency uint32
-	for i := 0; i < probes; i++ {
 		start := time.Now()
-		n.Client.Ping()
-		probe := uint32(time.Since(start) / time.Microsecond)
-		latency = (latency + probe) / 2
+		n.Client.Ping(context.TODO())
+		dur += uint64(time.Since(start) / time.Microsecond)
 	}
-	atomic.StoreUint32(&n.latency, latency)
+
+	latency := float64(dur) / float64(numProbe)
+	atomic.StoreUint32(&n.latency, uint32(latency+0.5))
 }
 
 func (n *clusterNode) Latency() time.Duration {
@@ -248,11 +253,11 @@ func (n *clusterNode) SetGeneration(gen uint32) {
 type clusterNodes struct {
 	opt *ClusterOptions
 
-	mu           sync.RWMutex
-	allAddrs     []string
-	allNodes     map[string]*clusterNode
-	clusterAddrs []string
-	closed       bool
+	mu          sync.RWMutex
+	addrs       []string
+	nodes       map[string]*clusterNode
+	activeAddrs []string
+	closed      bool
 
 	_generation uint32 // atomic
 }
@@ -261,8 +266,8 @@ func newClusterNodes(opt *ClusterOptions) *clusterNodes {
 	return &clusterNodes{
 		opt: opt,
 
-		allAddrs: opt.Addrs,
-		allNodes: make(map[string]*clusterNode),
+		addrs: opt.Addrs,
+		nodes: make(map[string]*clusterNode),
 	}
 }
 
@@ -276,14 +281,14 @@ func (c *clusterNodes) Close() error {
 	c.closed = true
 
 	var firstErr error
-	for _, node := range c.allNodes {
+	for _, node := range c.nodes {
 		if err := node.Client.Close(); err != nil && firstErr == nil {
 			firstErr = err
 		}
 	}
 
-	c.allNodes = nil
-	c.clusterAddrs = nil
+	c.nodes = nil
+	c.activeAddrs = nil
 
 	return firstErr
 }
@@ -293,10 +298,10 @@ func (c *clusterNodes) Addrs() ([]string, error) {
 	c.mu.RLock()
 	closed := c.closed
 	if !closed {
-		if len(c.clusterAddrs) > 0 {
-			addrs = c.clusterAddrs
+		if len(c.activeAddrs) > 0 {
+			addrs = c.activeAddrs
 		} else {
-			addrs = c.allAddrs
+			addrs = c.addrs
 		}
 	}
 	c.mu.RUnlock()
@@ -318,16 +323,23 @@ func (c *clusterNodes) NextGeneration() uint32 {
 func (c *clusterNodes) GC(generation uint32) {
 	//nolint:prealloc
 	var collected []*clusterNode
+
 	c.mu.Lock()
-	for addr, node := range c.allNodes {
+
+	c.activeAddrs = c.activeAddrs[:0]
+	for addr, node := range c.nodes {
 		if node.Generation() >= generation {
+			c.activeAddrs = append(c.activeAddrs, addr)
+			if c.opt.RouteByLatency {
+				go node.updateLatency()
+			}
 			continue
 		}
 
-		c.clusterAddrs = remove(c.clusterAddrs, addr)
-		delete(c.allNodes, addr)
+		delete(c.nodes, addr)
 		collected = append(collected, node)
 	}
+
 	c.mu.Unlock()
 
 	for _, node := range collected {
@@ -351,18 +363,17 @@ func (c *clusterNodes) Get(addr string) (*clusterNode, error) {
 		return nil, pool.ErrClosed
 	}
 
-	node, ok := c.allNodes[addr]
+	node, ok := c.nodes[addr]
 	if ok {
-		return node, err
+		return node, nil
 	}
 
 	node = newClusterNode(c.opt, addr)
 
-	c.allAddrs = appendIfNotExists(c.allAddrs, addr)
-	c.clusterAddrs = append(c.clusterAddrs, addr)
-	c.allNodes[addr] = node
+	c.addrs = appendIfNotExists(c.addrs, addr)
+	c.nodes[addr] = node
 
-	return node, err
+	return node, nil
 }
 
 func (c *clusterNodes) get(addr string) (*clusterNode, error) {
@@ -372,7 +383,7 @@ func (c *clusterNodes) get(addr string) (*clusterNode, error) {
 	if c.closed {
 		err = pool.ErrClosed
 	} else {
-		node = c.allNodes[addr]
+		node = c.nodes[addr]
 	}
 	c.mu.RUnlock()
 	return node, err
@@ -386,8 +397,8 @@ func (c *clusterNodes) All() ([]*clusterNode, error) {
 		return nil, pool.ErrClosed
 	}
 
-	cp := make([]*clusterNode, 0, len(c.allNodes))
-	for _, node := range c.allNodes {
+	cp := make([]*clusterNode, 0, len(c.nodes))
+	for _, node := range c.nodes {
 		cp = append(cp, node)
 	}
 	return cp, nil
@@ -552,8 +563,6 @@ func (c *clusterState) slotSlaveNode(slot int) (*clusterNode, error) {
 }
 
 func (c *clusterState) slotClosestNode(slot int) (*clusterNode, error) {
-	const threshold = time.Millisecond
-
 	nodes := c.slotNodes(slot)
 	if len(nodes) == 0 {
 		return c.nodes.Random()
@@ -564,11 +573,16 @@ func (c *clusterState) slotClosestNode(slot int) (*clusterNode, error) {
 		if n.Failing() {
 			continue
 		}
-		if node == nil || node.Latency()-n.Latency() > threshold {
+		if node == nil || n.Latency() < node.Latency() {
 			node = n
 		}
 	}
-	return node, nil
+	if node != nil {
+		return node, nil
+	}
+
+	// If all nodes are failing - return random node
+	return c.nodes.Random()
 }
 
 func (c *clusterState) slotRandomNode(slot int) (*clusterNode, error) {
@@ -597,20 +611,20 @@ func (c *clusterState) slotNodes(slot int) []*clusterNode {
 //------------------------------------------------------------------------------
 
 type clusterStateHolder struct {
-	load func() (*clusterState, error)
+	load func(ctx context.Context) (*clusterState, error)
 
 	state     atomic.Value
 	reloading uint32 // atomic
 }
 
-func newClusterStateHolder(fn func() (*clusterState, error)) *clusterStateHolder {
+func newClusterStateHolder(fn func(ctx context.Context) (*clusterState, error)) *clusterStateHolder {
 	return &clusterStateHolder{
 		load: fn,
 	}
 }
 
-func (c *clusterStateHolder) Reload() (*clusterState, error) {
-	state, err := c.load()
+func (c *clusterStateHolder) Reload(ctx context.Context) (*clusterState, error) {
+	state, err := c.load(ctx)
 	if err != nil {
 		return nil, err
 	}
@@ -618,39 +632,39 @@ func (c *clusterStateHolder) Reload() (*clusterState, error) {
 	return state, nil
 }
 
-func (c *clusterStateHolder) LazyReload() {
+func (c *clusterStateHolder) LazyReload(ctx context.Context) {
 	if !atomic.CompareAndSwapUint32(&c.reloading, 0, 1) {
 		return
 	}
 	go func() {
 		defer atomic.StoreUint32(&c.reloading, 0)
 
-		_, err := c.Reload()
+		_, err := c.Reload(ctx)
 		if err != nil {
 			return
 		}
-		time.Sleep(100 * time.Millisecond)
+		time.Sleep(200 * time.Millisecond)
 	}()
 }
 
-func (c *clusterStateHolder) Get() (*clusterState, error) {
+func (c *clusterStateHolder) Get(ctx context.Context) (*clusterState, error) {
 	v := c.state.Load()
 	if v != nil {
 		state := v.(*clusterState)
-		if time.Since(state.createdAt) > time.Minute {
-			c.LazyReload()
+		if time.Since(state.createdAt) > 10*time.Second {
+			c.LazyReload(ctx)
 		}
 		return state, nil
 	}
-	return c.Reload()
+	return c.Reload(ctx)
 }
 
-func (c *clusterStateHolder) ReloadOrGet() (*clusterState, error) {
-	state, err := c.Reload()
+func (c *clusterStateHolder) ReloadOrGet(ctx context.Context) (*clusterState, error) {
+	state, err := c.Reload(ctx)
 	if err == nil {
 		return state, nil
 	}
-	return c.Get()
+	return c.Get(ctx)
 }
 
 //------------------------------------------------------------------------------
@@ -717,9 +731,8 @@ func (c *ClusterClient) Options() *ClusterOptions {
 
 // ReloadState reloads cluster state. If available it calls ClusterSlots func
 // to get cluster slots information.
-func (c *ClusterClient) ReloadState() error {
-	_, err := c.state.Reload()
-	return err
+func (c *ClusterClient) ReloadState(ctx context.Context) {
+	c.state.LazyReload(ctx)
 }
 
 // Close closes the cluster client, releasing any open resources.
@@ -731,34 +744,17 @@ func (c *ClusterClient) Close() error {
 }
 
 // Do creates a Cmd from the args and processes the cmd.
-func (c *ClusterClient) Do(args ...interface{}) *Cmd {
-	return c.DoContext(c.ctx, args...)
-}
-
-func (c *ClusterClient) DoContext(ctx context.Context, args ...interface{}) *Cmd {
-	cmd := NewCmd(args...)
-	_ = c.ProcessContext(ctx, cmd)
+func (c *ClusterClient) Do(ctx context.Context, args ...interface{}) *Cmd {
+	cmd := NewCmd(ctx, args...)
+	_ = c.Process(ctx, cmd)
 	return cmd
 }
 
-func (c *ClusterClient) Process(cmd Cmder) error {
-	return c.ProcessContext(c.ctx, cmd)
-}
-
-func (c *ClusterClient) ProcessContext(ctx context.Context, cmd Cmder) error {
+func (c *ClusterClient) Process(ctx context.Context, cmd Cmder) error {
 	return c.hooks.process(ctx, cmd, c.process)
 }
 
 func (c *ClusterClient) process(ctx context.Context, cmd Cmder) error {
-	err := c._process(ctx, cmd)
-	if err != nil {
-		cmd.SetErr(err)
-		return err
-	}
-	return nil
-}
-
-func (c *ClusterClient) _process(ctx context.Context, cmd Cmder) error {
 	cmdInfo := c.cmdInfo(cmd.Name())
 	slot := c.cmdSlot(cmd)
 
@@ -774,7 +770,7 @@ func (c *ClusterClient) _process(ctx context.Context, cmd Cmder) error {
 
 		if node == nil {
 			var err error
-			node, err = c.cmdNode(cmdInfo, slot)
+			node, err = c.cmdNode(ctx, cmdInfo, slot)
 			if err != nil {
 				return err
 			}
@@ -782,23 +778,23 @@ func (c *ClusterClient) _process(ctx context.Context, cmd Cmder) error {
 
 		if ask {
 			pipe := node.Client.Pipeline()
-			_ = pipe.Process(NewCmd("asking"))
-			_ = pipe.Process(cmd)
-			_, lastErr = pipe.ExecContext(ctx)
+			_ = pipe.Process(ctx, NewCmd(ctx, "asking"))
+			_ = pipe.Process(ctx, cmd)
+			_, lastErr = pipe.Exec(ctx)
 			_ = pipe.Close()
 			ask = false
 		} else {
-			lastErr = node.Client.ProcessContext(ctx, cmd)
+			lastErr = node.Client.Process(ctx, cmd)
 		}
 
 		// If there is no error - we are done.
 		if lastErr == nil {
 			return nil
 		}
-		if lastErr != Nil {
-			c.state.LazyReload()
-		}
-		if lastErr == pool.ErrClosed || isReadOnlyError(lastErr) {
+		if isReadOnly := isReadOnlyError(lastErr); isReadOnly || lastErr == pool.ErrClosed {
+			if isReadOnly {
+				c.state.LazyReload(ctx)
+			}
 			node = nil
 			continue
 		}
@@ -822,7 +818,7 @@ func (c *ClusterClient) _process(ctx context.Context, cmd Cmder) error {
 			continue
 		}
 
-		if isRetryableError(lastErr, cmd.readTimeout() == nil) {
+		if shouldRetry(lastErr, cmd.readTimeout() == nil) {
 			// First retry the same node.
 			if attempt == 0 {
 				continue
@@ -841,8 +837,11 @@ func (c *ClusterClient) _process(ctx context.Context, cmd Cmder) error {
 
 // ForEachMaster concurrently calls the fn on each master node in the cluster.
 // It returns the first error if any.
-func (c *ClusterClient) ForEachMaster(fn func(client *Client) error) error {
-	state, err := c.state.ReloadOrGet()
+func (c *ClusterClient) ForEachMaster(
+	ctx context.Context,
+	fn func(ctx context.Context, client *Client) error,
+) error {
+	state, err := c.state.ReloadOrGet(ctx)
 	if err != nil {
 		return err
 	}
@@ -854,7 +853,7 @@ func (c *ClusterClient) ForEachMaster(fn func(client *Client) error) error {
 		wg.Add(1)
 		go func(node *clusterNode) {
 			defer wg.Done()
-			err := fn(node.Client)
+			err := fn(ctx, node.Client)
 			if err != nil {
 				select {
 				case errCh <- err:
@@ -876,8 +875,11 @@ func (c *ClusterClient) ForEachMaster(fn func(client *Client) error) error {
 
 // ForEachSlave concurrently calls the fn on each slave node in the cluster.
 // It returns the first error if any.
-func (c *ClusterClient) ForEachSlave(fn func(client *Client) error) error {
-	state, err := c.state.ReloadOrGet()
+func (c *ClusterClient) ForEachSlave(
+	ctx context.Context,
+	fn func(ctx context.Context, client *Client) error,
+) error {
+	state, err := c.state.ReloadOrGet(ctx)
 	if err != nil {
 		return err
 	}
@@ -889,7 +891,7 @@ func (c *ClusterClient) ForEachSlave(fn func(client *Client) error) error {
 		wg.Add(1)
 		go func(node *clusterNode) {
 			defer wg.Done()
-			err := fn(node.Client)
+			err := fn(ctx, node.Client)
 			if err != nil {
 				select {
 				case errCh <- err:
@@ -909,10 +911,13 @@ func (c *ClusterClient) ForEachSlave(fn func(client *Client) error) error {
 	}
 }
 
-// ForEachNode concurrently calls the fn on each known node in the cluster.
+// ForEachShard concurrently calls the fn on each known node in the cluster.
 // It returns the first error if any.
-func (c *ClusterClient) ForEachNode(fn func(client *Client) error) error {
-	state, err := c.state.ReloadOrGet()
+func (c *ClusterClient) ForEachShard(
+	ctx context.Context,
+	fn func(ctx context.Context, client *Client) error,
+) error {
+	state, err := c.state.ReloadOrGet(ctx)
 	if err != nil {
 		return err
 	}
@@ -922,7 +927,7 @@ func (c *ClusterClient) ForEachNode(fn func(client *Client) error) error {
 
 	worker := func(node *clusterNode) {
 		defer wg.Done()
-		err := fn(node.Client)
+		err := fn(ctx, node.Client)
 		if err != nil {
 			select {
 			case errCh <- err:
@@ -954,7 +959,7 @@ func (c *ClusterClient) ForEachNode(fn func(client *Client) error) error {
 func (c *ClusterClient) PoolStats() *PoolStats {
 	var acc PoolStats
 
-	state, _ := c.state.Get()
+	state, _ := c.state.Get(context.TODO())
 	if state == nil {
 		return &acc
 	}
@@ -984,9 +989,9 @@ func (c *ClusterClient) PoolStats() *PoolStats {
 	return &acc
 }
 
-func (c *ClusterClient) loadState() (*clusterState, error) {
+func (c *ClusterClient) loadState(ctx context.Context) (*clusterState, error) {
 	if c.opt.ClusterSlots != nil {
-		slots, err := c.opt.ClusterSlots()
+		slots, err := c.opt.ClusterSlots(ctx)
 		if err != nil {
 			return nil, err
 		}
@@ -999,7 +1004,10 @@ func (c *ClusterClient) loadState() (*clusterState, error) {
 	}
 
 	var firstErr error
-	for _, addr := range addrs {
+
+	for _, idx := range rand.Perm(len(addrs)) {
+		addr := addrs[idx]
+
 		node, err := c.nodes.Get(addr)
 		if err != nil {
 			if firstErr == nil {
@@ -1008,7 +1016,7 @@ func (c *ClusterClient) loadState() (*clusterState, error) {
 			continue
 		}
 
-		slots, err := node.Client.ClusterSlots().Result()
+		slots, err := node.Client.ClusterSlots(ctx).Result()
 		if err != nil {
 			if firstErr == nil {
 				firstErr = err
@@ -1019,6 +1027,16 @@ func (c *ClusterClient) loadState() (*clusterState, error) {
 		return newClusterState(c.nodes, slots, node.Client.opt.Addr)
 	}
 
+	/*
+	 * No node is connectable. It's possible that all nodes' IP has changed.
+	 * Clear activeAddrs to let client be able to re-connect using the initial
+	 * setting of the addresses (e.g. [redis-cluster-0:6379, redis-cluster-1:6379]),
+	 * which might have chance to resolve domain name and get updated IP address.
+	 */
+	c.nodes.mu.Lock()
+	c.nodes.activeAddrs = nil
+	c.nodes.mu.Unlock()
+
 	return nil, firstErr
 }
 
@@ -1036,7 +1054,7 @@ func (c *ClusterClient) reaper(idleCheckFrequency time.Duration) {
 		for _, node := range nodes {
 			_, err := node.Client.connPool.(*pool.ConnPool).ReapStaleConns()
 			if err != nil {
-				internal.Logger.Printf("ReapStaleConns failed: %s", err)
+				internal.Logger.Printf(c.Context(), "ReapStaleConns failed: %s", err)
 			}
 		}
 	}
@@ -1051,8 +1069,8 @@ func (c *ClusterClient) Pipeline() Pipeliner {
 	return &pipe
 }
 
-func (c *ClusterClient) Pipelined(fn func(Pipeliner) error) ([]Cmder, error) {
-	return c.Pipeline().Pipelined(fn)
+func (c *ClusterClient) Pipelined(ctx context.Context, fn func(Pipeliner) error) ([]Cmder, error) {
+	return c.Pipeline().Pipelined(ctx, fn)
 }
 
 func (c *ClusterClient) processPipeline(ctx context.Context, cmds []Cmder) error {
@@ -1061,7 +1079,7 @@ func (c *ClusterClient) processPipeline(ctx context.Context, cmds []Cmder) error
 
 func (c *ClusterClient) _processPipeline(ctx context.Context, cmds []Cmder) error {
 	cmdsMap := newCmdsMap()
-	err := c.mapCmdsByNode(cmdsMap, cmds)
+	err := c.mapCmdsByNode(ctx, cmdsMap, cmds)
 	if err != nil {
 		setCmdsErr(cmds, err)
 		return err
@@ -1088,7 +1106,7 @@ func (c *ClusterClient) _processPipeline(ctx context.Context, cmds []Cmder) erro
 					return
 				}
 				if attempt < c.opt.MaxRedirects {
-					if err := c.mapCmdsByNode(failedCmds, cmds); err != nil {
+					if err := c.mapCmdsByNode(ctx, failedCmds, cmds); err != nil {
 						setCmdsErr(cmds, err)
 					}
 				} else {
@@ -1107,8 +1125,8 @@ func (c *ClusterClient) _processPipeline(ctx context.Context, cmds []Cmder) erro
 	return cmdsFirstErr(cmds)
 }
 
-func (c *ClusterClient) mapCmdsByNode(cmdsMap *cmdsMap, cmds []Cmder) error {
-	state, err := c.state.Get()
+func (c *ClusterClient) mapCmdsByNode(ctx context.Context, cmdsMap *cmdsMap, cmds []Cmder) error {
+	state, err := c.state.Get(ctx)
 	if err != nil {
 		return err
 	}
@@ -1159,21 +1177,28 @@ func (c *ClusterClient) _processPipelineNode(
 			}
 
 			return cn.WithReader(ctx, c.opt.ReadTimeout, func(rd *proto.Reader) error {
-				return c.pipelineReadCmds(node, rd, cmds, failedCmds)
+				return c.pipelineReadCmds(ctx, node, rd, cmds, failedCmds)
 			})
 		})
 	})
 }
 
 func (c *ClusterClient) pipelineReadCmds(
-	node *clusterNode, rd *proto.Reader, cmds []Cmder, failedCmds *cmdsMap,
+	ctx context.Context,
+	node *clusterNode,
+	rd *proto.Reader,
+	cmds []Cmder,
+	failedCmds *cmdsMap,
 ) error {
 	for _, cmd := range cmds {
 		err := cmd.readReply(rd)
+		cmd.SetErr(err)
+
 		if err == nil {
 			continue
 		}
-		if c.checkMovedErr(cmd, err, failedCmds) {
+
+		if c.checkMovedErr(ctx, cmd, err, failedCmds) {
 			continue
 		}
 
@@ -1190,7 +1215,7 @@ func (c *ClusterClient) pipelineReadCmds(
 }
 
 func (c *ClusterClient) checkMovedErr(
-	cmd Cmder, err error, failedCmds *cmdsMap,
+	ctx context.Context, cmd Cmder, err error, failedCmds *cmdsMap,
 ) bool {
 	moved, ask, addr := isMovedError(err)
 	if !moved && !ask {
@@ -1203,13 +1228,13 @@ func (c *ClusterClient) checkMovedErr(
 	}
 
 	if moved {
-		c.state.LazyReload()
+		c.state.LazyReload(ctx)
 		failedCmds.Add(node, cmd)
 		return true
 	}
 
 	if ask {
-		failedCmds.Add(node, NewCmd("asking"), cmd)
+		failedCmds.Add(node, NewCmd(ctx, "asking"), cmd)
 		return true
 	}
 
@@ -1226,16 +1251,19 @@ func (c *ClusterClient) TxPipeline() Pipeliner {
 	return &pipe
 }
 
-func (c *ClusterClient) TxPipelined(fn func(Pipeliner) error) ([]Cmder, error) {
-	return c.TxPipeline().Pipelined(fn)
+func (c *ClusterClient) TxPipelined(ctx context.Context, fn func(Pipeliner) error) ([]Cmder, error) {
+	return c.TxPipeline().Pipelined(ctx, fn)
 }
 
 func (c *ClusterClient) processTxPipeline(ctx context.Context, cmds []Cmder) error {
-	return c.hooks.processPipeline(ctx, cmds, c._processTxPipeline)
+	return c.hooks.processTxPipeline(ctx, cmds, c._processTxPipeline)
 }
 
 func (c *ClusterClient) _processTxPipeline(ctx context.Context, cmds []Cmder) error {
-	state, err := c.state.Get()
+	// Trim multi .. exec.
+	cmds = cmds[1 : len(cmds)-1]
+
+	state, err := c.state.Get(ctx)
 	if err != nil {
 		setCmdsErr(cmds, err)
 		return err
@@ -1270,8 +1298,9 @@ func (c *ClusterClient) _processTxPipeline(ctx context.Context, cmds []Cmder) er
 					if err == nil {
 						return
 					}
+
 					if attempt < c.opt.MaxRedirects {
-						if err := c.mapCmdsByNode(failedCmds, cmds); err != nil {
+						if err := c.mapCmdsByNode(ctx, failedCmds, cmds); err != nil {
 							setCmdsErr(cmds, err)
 						}
 					} else {
@@ -1317,11 +1346,11 @@ func (c *ClusterClient) _processTxPipelineNode(
 				// Trim multi and exec.
 				cmds = cmds[1 : len(cmds)-1]
 
-				err := c.txPipelineReadQueued(rd, statusCmd, cmds, failedCmds)
+				err := c.txPipelineReadQueued(ctx, rd, statusCmd, cmds, failedCmds)
 				if err != nil {
 					moved, ask, addr := isMovedError(err)
 					if moved || ask {
-						return c.cmdsMoved(cmds, moved, ask, addr, failedCmds)
+						return c.cmdsMoved(ctx, cmds, moved, ask, addr, failedCmds)
 					}
 					return err
 				}
@@ -1333,7 +1362,11 @@ func (c *ClusterClient) _processTxPipelineNode(
 }
 
 func (c *ClusterClient) txPipelineReadQueued(
-	rd *proto.Reader, statusCmd *StatusCmd, cmds []Cmder, failedCmds *cmdsMap,
+	ctx context.Context,
+	rd *proto.Reader,
+	statusCmd *StatusCmd,
+	cmds []Cmder,
+	failedCmds *cmdsMap,
 ) error {
 	// Parse queued replies.
 	if err := statusCmd.readReply(rd); err != nil {
@@ -1342,7 +1375,7 @@ func (c *ClusterClient) txPipelineReadQueued(
 
 	for _, cmd := range cmds {
 		err := statusCmd.readReply(rd)
-		if err == nil || c.checkMovedErr(cmd, err, failedCmds) || isRedisError(err) {
+		if err == nil || c.checkMovedErr(ctx, cmd, err, failedCmds) || isRedisError(err) {
 			continue
 		}
 		return err
@@ -1370,7 +1403,10 @@ func (c *ClusterClient) txPipelineReadQueued(
 }
 
 func (c *ClusterClient) cmdsMoved(
-	cmds []Cmder, moved, ask bool, addr string, failedCmds *cmdsMap,
+	ctx context.Context, cmds []Cmder,
+	moved, ask bool,
+	addr string,
+	failedCmds *cmdsMap,
 ) error {
 	node, err := c.nodes.Get(addr)
 	if err != nil {
@@ -1378,7 +1414,7 @@ func (c *ClusterClient) cmdsMoved(
 	}
 
 	if moved {
-		c.state.LazyReload()
+		c.state.LazyReload(ctx)
 		for _, cmd := range cmds {
 			failedCmds.Add(node, cmd)
 		}
@@ -1387,7 +1423,7 @@ func (c *ClusterClient) cmdsMoved(
 
 	if ask {
 		for _, cmd := range cmds {
-			failedCmds.Add(node, NewCmd("asking"), cmd)
+			failedCmds.Add(node, NewCmd(ctx, "asking"), cmd)
 		}
 		return nil
 	}
@@ -1395,11 +1431,7 @@ func (c *ClusterClient) cmdsMoved(
 	return nil
 }
 
-func (c *ClusterClient) Watch(fn func(*Tx) error, keys ...string) error {
-	return c.WatchContext(c.ctx, fn, keys...)
-}
-
-func (c *ClusterClient) WatchContext(ctx context.Context, fn func(*Tx) error, keys ...string) error {
+func (c *ClusterClient) Watch(ctx context.Context, fn func(*Tx) error, keys ...string) error {
 	if len(keys) == 0 {
 		return fmt.Errorf("redis: Watch requires at least one key")
 	}
@@ -1412,7 +1444,7 @@ func (c *ClusterClient) WatchContext(ctx context.Context, fn func(*Tx) error, ke
 		}
 	}
 
-	node, err := c.slotMasterNode(slot)
+	node, err := c.slotMasterNode(ctx, slot)
 	if err != nil {
 		return err
 	}
@@ -1424,13 +1456,10 @@ func (c *ClusterClient) WatchContext(ctx context.Context, fn func(*Tx) error, ke
 			}
 		}
 
-		err = node.Client.WatchContext(ctx, fn, keys...)
+		err = node.Client.Watch(ctx, fn, keys...)
 		if err == nil {
 			break
 		}
-		if err != Nil {
-			c.state.LazyReload()
-		}
 
 		moved, ask, addr := isMovedError(err)
 		if moved || ask {
@@ -1441,15 +1470,18 @@ func (c *ClusterClient) WatchContext(ctx context.Context, fn func(*Tx) error, ke
 			continue
 		}
 
-		if err == pool.ErrClosed || isReadOnlyError(err) {
-			node, err = c.slotMasterNode(slot)
+		if isReadOnly := isReadOnlyError(err); isReadOnly || err == pool.ErrClosed {
+			if isReadOnly {
+				c.state.LazyReload(ctx)
+			}
+			node, err = c.slotMasterNode(ctx, slot)
 			if err != nil {
 				return err
 			}
 			continue
 		}
 
-		if isRetryableError(err, true) {
+		if shouldRetry(err, true) {
 			continue
 		}
 
@@ -1464,7 +1496,7 @@ func (c *ClusterClient) pubSub() *PubSub {
 	pubsub := &PubSub{
 		opt: c.opt.clientOptions(),
 
-		newConn: func(channels []string) (*pool.Conn, error) {
+		newConn: func(ctx context.Context, channels []string) (*pool.Conn, error) {
 			if node != nil {
 				panic("node != nil")
 			}
@@ -1472,7 +1504,7 @@ func (c *ClusterClient) pubSub() *PubSub {
 			var err error
 			if len(channels) > 0 {
 				slot := hashtag.Slot(channels[0])
-				node, err = c.slotMasterNode(slot)
+				node, err = c.slotMasterNode(ctx, slot)
 			} else {
 				node, err = c.nodes.Random()
 			}
@@ -1502,20 +1534,20 @@ func (c *ClusterClient) pubSub() *PubSub {
 
 // Subscribe subscribes the client to the specified channels.
 // Channels can be omitted to create empty subscription.
-func (c *ClusterClient) Subscribe(channels ...string) *PubSub {
+func (c *ClusterClient) Subscribe(ctx context.Context, channels ...string) *PubSub {
 	pubsub := c.pubSub()
 	if len(channels) > 0 {
-		_ = pubsub.Subscribe(channels...)
+		_ = pubsub.Subscribe(ctx, channels...)
 	}
 	return pubsub
 }
 
 // PSubscribe subscribes the client to the given patterns.
 // Patterns can be omitted to create empty subscription.
-func (c *ClusterClient) PSubscribe(channels ...string) *PubSub {
+func (c *ClusterClient) PSubscribe(ctx context.Context, channels ...string) *PubSub {
 	pubsub := c.pubSub()
 	if len(channels) > 0 {
-		_ = pubsub.PSubscribe(channels...)
+		_ = pubsub.PSubscribe(ctx, channels...)
 	}
 	return pubsub
 }
@@ -1524,23 +1556,34 @@ func (c *ClusterClient) retryBackoff(attempt int) time.Duration {
 	return internal.RetryBackoff(attempt, c.opt.MinRetryBackoff, c.opt.MaxRetryBackoff)
 }
 
-func (c *ClusterClient) cmdsInfo() (map[string]*CommandInfo, error) {
+func (c *ClusterClient) cmdsInfo(ctx context.Context) (map[string]*CommandInfo, error) {
+	// Try 3 random nodes.
+	const nodeLimit = 3
+
 	addrs, err := c.nodes.Addrs()
 	if err != nil {
 		return nil, err
 	}
 
 	var firstErr error
-	for _, addr := range addrs {
+
+	perm := rand.Perm(len(addrs))
+	if len(perm) > nodeLimit {
+		perm = perm[:nodeLimit]
+	}
+
+	for _, idx := range perm {
+		addr := addrs[idx]
+
 		node, err := c.nodes.Get(addr)
 		if err != nil {
-			return nil, err
-		}
-		if node == nil {
+			if firstErr == nil {
+				firstErr = err
+			}
 			continue
 		}
 
-		info, err := node.Client.Command().Result()
+		info, err := node.Client.Command(ctx).Result()
 		if err == nil {
 			return info, nil
 		}
@@ -1548,18 +1591,22 @@ func (c *ClusterClient) cmdsInfo() (map[string]*CommandInfo, error) {
 			firstErr = err
 		}
 	}
+
+	if firstErr == nil {
+		panic("not reached")
+	}
 	return nil, firstErr
 }
 
 func (c *ClusterClient) cmdInfo(name string) *CommandInfo {
-	cmdsInfo, err := c.cmdsInfoCache.Get()
+	cmdsInfo, err := c.cmdsInfoCache.Get(c.ctx)
 	if err != nil {
 		return nil
 	}
 
 	info := cmdsInfo[name]
 	if info == nil {
-		internal.Logger.Printf("info for cmd=%s not found", name)
+		internal.Logger.Printf(c.Context(), "info for cmd=%s not found", name)
 	}
 	return info
 }
@@ -1582,8 +1629,12 @@ func cmdSlot(cmd Cmder, pos int) int {
 	return hashtag.Slot(firstKey)
 }
 
-func (c *ClusterClient) cmdNode(cmdInfo *CommandInfo, slot int) (*clusterNode, error) {
-	state, err := c.state.Get()
+func (c *ClusterClient) cmdNode(
+	ctx context.Context,
+	cmdInfo *CommandInfo,
+	slot int,
+) (*clusterNode, error) {
+	state, err := c.state.Get(ctx)
 	if err != nil {
 		return nil, err
 	}
@@ -1604,14 +1655,43 @@ func (c *clusterClient) slotReadOnlyNode(state *clusterState, slot int) (*cluste
 	return state.slotSlaveNode(slot)
 }
 
-func (c *ClusterClient) slotMasterNode(slot int) (*clusterNode, error) {
-	state, err := c.state.Get()
+func (c *ClusterClient) slotMasterNode(ctx context.Context, slot int) (*clusterNode, error) {
+	state, err := c.state.Get(ctx)
 	if err != nil {
 		return nil, err
 	}
 	return state.slotMasterNode(slot)
 }
 
+// SlaveForKey gets a client for a replica node to run any command on it.
+// This is especially useful if we want to run a particular lua script which has
+// only read only commands on the replica.
+// This is because other redis commands generally have a flag that points that
+// they are read only and automatically run on the replica nodes
+// if ClusterOptions.ReadOnly flag is set to true.
+func (c *ClusterClient) SlaveForKey(ctx context.Context, key string) (*Client, error) {
+	state, err := c.state.Get(ctx)
+	if err != nil {
+		return nil, err
+	}
+	slot := hashtag.Slot(key)
+	node, err := c.slotReadOnlyNode(state, slot)
+	if err != nil {
+		return nil, err
+	}
+	return node.Client, err
+}
+
+// MasterForKey return a client to the master node for a particular key.
+func (c *ClusterClient) MasterForKey(ctx context.Context, key string) (*Client, error) {
+	slot := hashtag.Slot(key)
+	node, err := c.slotMasterNode(ctx, slot)
+	if err != nil {
+		return nil, err
+	}
+	return node.Client, err
+}
+
 func appendUniqueNode(nodes []*clusterNode, node *clusterNode) []*clusterNode {
 	for _, n := range nodes {
 		if n == node {
@@ -1634,21 +1714,6 @@ loop:
 	return ss
 }
 
-func remove(ss []string, es ...string) []string {
-	if len(es) == 0 {
-		return ss[:0]
-	}
-	for _, e := range es {
-		for i, s := range ss {
-			if s == e {
-				ss = append(ss[:i], ss[i+1:]...)
-				break
-			}
-		}
-	}
-	return ss
-}
-
 //------------------------------------------------------------------------------
 
 type cmdsMap struct {
diff --git a/vendor/github.com/go-redis/redis/v8/cluster_commands.go b/vendor/github.com/go-redis/redis/v8/cluster_commands.go
new file mode 100644
index 0000000000..1f0bae067a
--- /dev/null
+++ b/vendor/github.com/go-redis/redis/v8/cluster_commands.go
@@ -0,0 +1,25 @@
+package redis
+
+import (
+	"context"
+	"sync/atomic"
+)
+
+func (c *ClusterClient) DBSize(ctx context.Context) *IntCmd {
+	cmd := NewIntCmd(ctx, "dbsize")
+	var size int64
+	err := c.ForEachMaster(ctx, func(ctx context.Context, master *Client) error {
+		n, err := master.DBSize(ctx).Result()
+		if err != nil {
+			return err
+		}
+		atomic.AddInt64(&size, n)
+		return nil
+	})
+	if err != nil {
+		cmd.SetErr(err)
+		return cmd
+	}
+	cmd.val = size
+	return cmd
+}
diff --git a/vendor/github.com/go-redis/redis/v7/command.go b/vendor/github.com/go-redis/redis/v8/command.go
index dd7fe4a91e..2932035e72 100644
--- a/vendor/github.com/go-redis/redis/v7/command.go
+++ b/vendor/github.com/go-redis/redis/v8/command.go
@@ -1,22 +1,26 @@
 package redis
 
 import (
+	"context"
 	"fmt"
 	"net"
 	"strconv"
-	"strings"
 	"time"
 
-	"github.com/go-redis/redis/v7/internal"
-	"github.com/go-redis/redis/v7/internal/proto"
-	"github.com/go-redis/redis/v7/internal/util"
+	"github.com/go-redis/redis/v8/internal"
+	"github.com/go-redis/redis/v8/internal/hscan"
+	"github.com/go-redis/redis/v8/internal/proto"
+	"github.com/go-redis/redis/v8/internal/util"
 )
 
 type Cmder interface {
 	Name() string
+	FullName() string
 	Args() []interface{}
 	String() string
 	stringArg(int) string
+	firstKeyPos() int8
+	setFirstKeyPos(int8)
 
 	readTimeout() *time.Duration
 	readReply(rd *proto.Reader) error
@@ -55,27 +59,11 @@ func writeCmd(wr *proto.Writer, cmd Cmder) error {
 	return wr.WriteArgs(cmd.Args())
 }
 
-func cmdString(cmd Cmder, val interface{}) string {
-	ss := make([]string, 0, len(cmd.Args()))
-	for _, arg := range cmd.Args() {
-		ss = append(ss, fmt.Sprint(arg))
-	}
-	s := strings.Join(ss, " ")
-	if err := cmd.Err(); err != nil {
-		return s + ": " + err.Error()
-	}
-	if val != nil {
-		switch vv := val.(type) {
-		case []byte:
-			return s + ": " + string(vv)
-		default:
-			return s + ": " + fmt.Sprint(val)
-		}
+func cmdFirstKeyPos(cmd Cmder, info *CommandInfo) int {
+	if pos := cmd.firstKeyPos(); pos != 0 {
+		return int(pos)
 	}
-	return s
-}
 
-func cmdFirstKeyPos(cmd Cmder, info *CommandInfo) int {
 	switch cmd.Name() {
 	case "eval", "evalsha":
 		if cmd.stringArg(2) != "0" {
@@ -85,18 +73,47 @@ func cmdFirstKeyPos(cmd Cmder, info *CommandInfo) int {
 		return 0
 	case "publish":
 		return 1
+	case "memory":
+		// https://github.com/redis/redis/issues/7493
+		if cmd.stringArg(1) == "usage" {
+			return 2
+		}
 	}
-	if info == nil {
-		return 0
+
+	if info != nil {
+		return int(info.FirstKeyPos)
+	}
+	return 0
+}
+
+func cmdString(cmd Cmder, val interface{}) string {
+	b := make([]byte, 0, 64)
+
+	for i, arg := range cmd.Args() {
+		if i > 0 {
+			b = append(b, ' ')
+		}
+		b = internal.AppendArg(b, arg)
+	}
+
+	if err := cmd.Err(); err != nil {
+		b = append(b, ": "...)
+		b = append(b, err.Error()...)
+	} else if val != nil {
+		b = append(b, ": "...)
+		b = internal.AppendArg(b, val)
 	}
-	return int(info.FirstKeyPos)
+
+	return internal.String(b)
 }
 
 //------------------------------------------------------------------------------
 
 type baseCmd struct {
-	args []interface{}
-	err  error
+	ctx    context.Context
+	args   []interface{}
+	err    error
+	keyPos int8
 
 	_readTimeout *time.Duration
 }
@@ -111,6 +128,21 @@ func (cmd *baseCmd) Name() string {
 	return internal.ToLower(cmd.stringArg(0))
 }
 
+func (cmd *baseCmd) FullName() string {
+	switch name := cmd.Name(); name {
+	case "cluster", "command":
+		if len(cmd.args) == 1 {
+			return name
+		}
+		if s2, ok := cmd.args[1].(string); ok {
+			return name + " " + s2
+		}
+		return name
+	default:
+		return name
+	}
+}
+
 func (cmd *baseCmd) Args() []interface{} {
 	return cmd.args
 }
@@ -123,6 +155,14 @@ func (cmd *baseCmd) stringArg(pos int) string {
 	return s
 }
 
+func (cmd *baseCmd) firstKeyPos() int8 {
+	return cmd.keyPos
+}
+
+func (cmd *baseCmd) setFirstKeyPos(keyPos int8) {
+	cmd.keyPos = keyPos
+}
+
 func (cmd *baseCmd) SetErr(e error) {
 	cmd.err = e
 }
@@ -147,9 +187,12 @@ type Cmd struct {
 	val interface{}
 }
 
-func NewCmd(args ...interface{}) *Cmd {
+func NewCmd(ctx context.Context, args ...interface{}) *Cmd {
 	return &Cmd{
-		baseCmd: baseCmd{args: args},
+		baseCmd: baseCmd{
+			ctx:  ctx,
+			args: args,
+		},
 	}
 }
 
@@ -272,12 +315,12 @@ func (cmd *Cmd) Bool() (bool, error) {
 	}
 }
 
-func (cmd *Cmd) readReply(rd *proto.Reader) error {
-	cmd.val, cmd.err = rd.ReadReply(sliceParser)
-	return cmd.err
+func (cmd *Cmd) readReply(rd *proto.Reader) (err error) {
+	cmd.val, err = rd.ReadReply(sliceParser)
+	return err
 }
 
-// Implements proto.MultiBulkParse
+// sliceParser implements proto.MultiBulkParse.
 func sliceParser(rd *proto.Reader, n int64) (interface{}, error) {
 	vals := make([]interface{}, n)
 	for i := 0; i < len(vals); i++ {
@@ -308,9 +351,12 @@ type SliceCmd struct {
 
 var _ Cmder = (*SliceCmd)(nil)
 
-func NewSliceCmd(args ...interface{}) *SliceCmd {
+func NewSliceCmd(ctx context.Context, args ...interface{}) *SliceCmd {
 	return &SliceCmd{
-		baseCmd: baseCmd{args: args},
+		baseCmd: baseCmd{
+			ctx:  ctx,
+			args: args,
+		},
 	}
 }
 
@@ -326,12 +372,31 @@ func (cmd *SliceCmd) String() string {
 	return cmdString(cmd, cmd.val)
 }
 
-func (cmd *SliceCmd) readReply(rd *proto.Reader) error {
-	var v interface{}
-	v, cmd.err = rd.ReadArrayReply(sliceParser)
+// Scan scans the results from the map into a destination struct. The map keys
+// are matched in the Redis struct fields by the `redis:"field"` tag.
+func (cmd *SliceCmd) Scan(dst interface{}) error {
 	if cmd.err != nil {
 		return cmd.err
 	}
+
+	// Pass the list of keys and values.
+	// Skip the first two args for: HMGET key
+	var args []interface{}
+	if cmd.args[0] == "hmget" {
+		args = cmd.args[2:]
+	} else {
+		// Otherwise, it's: MGET field field ...
+		args = cmd.args[1:]
+	}
+
+	return hscan.Scan(dst, args, cmd.val)
+}
+
+func (cmd *SliceCmd) readReply(rd *proto.Reader) error {
+	v, err := rd.ReadArrayReply(sliceParser)
+	if err != nil {
+		return err
+	}
 	cmd.val = v.([]interface{})
 	return nil
 }
@@ -346,9 +411,12 @@ type StatusCmd struct {
 
 var _ Cmder = (*StatusCmd)(nil)
 
-func NewStatusCmd(args ...interface{}) *StatusCmd {
+func NewStatusCmd(ctx context.Context, args ...interface{}) *StatusCmd {
 	return &StatusCmd{
-		baseCmd: baseCmd{args: args},
+		baseCmd: baseCmd{
+			ctx:  ctx,
+			args: args,
+		},
 	}
 }
 
@@ -364,9 +432,9 @@ func (cmd *StatusCmd) String() string {
 	return cmdString(cmd, cmd.val)
 }
 
-func (cmd *StatusCmd) readReply(rd *proto.Reader) error {
-	cmd.val, cmd.err = rd.ReadString()
-	return cmd.err
+func (cmd *StatusCmd) readReply(rd *proto.Reader) (err error) {
+	cmd.val, err = rd.ReadString()
+	return err
 }
 
 //------------------------------------------------------------------------------
@@ -379,9 +447,12 @@ type IntCmd struct {
 
 var _ Cmder = (*IntCmd)(nil)
 
-func NewIntCmd(args ...interface{}) *IntCmd {
+func NewIntCmd(ctx context.Context, args ...interface{}) *IntCmd {
 	return &IntCmd{
-		baseCmd: baseCmd{args: args},
+		baseCmd: baseCmd{
+			ctx:  ctx,
+			args: args,
+		},
 	}
 }
 
@@ -401,9 +472,9 @@ func (cmd *IntCmd) String() string {
 	return cmdString(cmd, cmd.val)
 }
 
-func (cmd *IntCmd) readReply(rd *proto.Reader) error {
-	cmd.val, cmd.err = rd.ReadIntReply()
-	return cmd.err
+func (cmd *IntCmd) readReply(rd *proto.Reader) (err error) {
+	cmd.val, err = rd.ReadIntReply()
+	return err
 }
 
 //------------------------------------------------------------------------------
@@ -416,9 +487,12 @@ type IntSliceCmd struct {
 
 var _ Cmder = (*IntSliceCmd)(nil)
 
-func NewIntSliceCmd(args ...interface{}) *IntSliceCmd {
+func NewIntSliceCmd(ctx context.Context, args ...interface{}) *IntSliceCmd {
 	return &IntSliceCmd{
-		baseCmd: baseCmd{args: args},
+		baseCmd: baseCmd{
+			ctx:  ctx,
+			args: args,
+		},
 	}
 }
 
@@ -435,7 +509,7 @@ func (cmd *IntSliceCmd) String() string {
 }
 
 func (cmd *IntSliceCmd) readReply(rd *proto.Reader) error {
-	_, cmd.err = rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
+	_, err := rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
 		cmd.val = make([]int64, n)
 		for i := 0; i < len(cmd.val); i++ {
 			num, err := rd.ReadIntReply()
@@ -446,7 +520,7 @@ func (cmd *IntSliceCmd) readReply(rd *proto.Reader) error {
 		}
 		return nil, nil
 	})
-	return cmd.err
+	return err
 }
 
 //------------------------------------------------------------------------------
@@ -460,9 +534,12 @@ type DurationCmd struct {
 
 var _ Cmder = (*DurationCmd)(nil)
 
-func NewDurationCmd(precision time.Duration, args ...interface{}) *DurationCmd {
+func NewDurationCmd(ctx context.Context, precision time.Duration, args ...interface{}) *DurationCmd {
 	return &DurationCmd{
-		baseCmd:   baseCmd{args: args},
+		baseCmd: baseCmd{
+			ctx:  ctx,
+			args: args,
+		},
 		precision: precision,
 	}
 }
@@ -480,10 +557,9 @@ func (cmd *DurationCmd) String() string {
 }
 
 func (cmd *DurationCmd) readReply(rd *proto.Reader) error {
-	var n int64
-	n, cmd.err = rd.ReadIntReply()
-	if cmd.err != nil {
-		return cmd.err
+	n, err := rd.ReadIntReply()
+	if err != nil {
+		return err
 	}
 	switch n {
 	// -2 if the key does not exist
@@ -506,9 +582,12 @@ type TimeCmd struct {
 
 var _ Cmder = (*TimeCmd)(nil)
 
-func NewTimeCmd(args ...interface{}) *TimeCmd {
+func NewTimeCmd(ctx context.Context, args ...interface{}) *TimeCmd {
 	return &TimeCmd{
-		baseCmd: baseCmd{args: args},
+		baseCmd: baseCmd{
+			ctx:  ctx,
+			args: args,
+		},
 	}
 }
 
@@ -525,7 +604,7 @@ func (cmd *TimeCmd) String() string {
 }
 
 func (cmd *TimeCmd) readReply(rd *proto.Reader) error {
-	_, cmd.err = rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
+	_, err := rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
 		if n != 2 {
 			return nil, fmt.Errorf("got %d elements, expected 2", n)
 		}
@@ -543,7 +622,7 @@ func (cmd *TimeCmd) readReply(rd *proto.Reader) error {
 		cmd.val = time.Unix(sec, microsec*1000)
 		return nil, nil
 	})
-	return cmd.err
+	return err
 }
 
 //------------------------------------------------------------------------------
@@ -556,9 +635,12 @@ type BoolCmd struct {
 
 var _ Cmder = (*BoolCmd)(nil)
 
-func NewBoolCmd(args ...interface{}) *BoolCmd {
+func NewBoolCmd(ctx context.Context, args ...interface{}) *BoolCmd {
 	return &BoolCmd{
-		baseCmd: baseCmd{args: args},
+		baseCmd: baseCmd{
+			ctx:  ctx,
+			args: args,
+		},
 	}
 }
 
@@ -575,17 +657,15 @@ func (cmd *BoolCmd) String() string {
 }
 
 func (cmd *BoolCmd) readReply(rd *proto.Reader) error {
-	var v interface{}
-	v, cmd.err = rd.ReadReply(nil)
+	v, err := rd.ReadReply(nil)
 	// `SET key value NX` returns nil when key already exists. But
 	// `SETNX key value` returns bool (0/1). So convert nil to bool.
-	if cmd.err == Nil {
+	if err == Nil {
 		cmd.val = false
-		cmd.err = nil
 		return nil
 	}
-	if cmd.err != nil {
-		return cmd.err
+	if err != nil {
+		return err
 	}
 	switch v := v.(type) {
 	case int64:
@@ -595,8 +675,7 @@ func (cmd *BoolCmd) readReply(rd *proto.Reader) error {
 		cmd.val = v == "OK"
 		return nil
 	default:
-		cmd.err = fmt.Errorf("got %T, wanted int64 or string", v)
-		return cmd.err
+		return fmt.Errorf("got %T, wanted int64 or string", v)
 	}
 }
 
@@ -610,9 +689,12 @@ type StringCmd struct {
 
 var _ Cmder = (*StringCmd)(nil)
 
-func NewStringCmd(args ...interface{}) *StringCmd {
+func NewStringCmd(ctx context.Context, args ...interface{}) *StringCmd {
 	return &StringCmd{
-		baseCmd: baseCmd{args: args},
+		baseCmd: baseCmd{
+			ctx:  ctx,
+			args: args,
+		},
 	}
 }
 
@@ -685,9 +767,9 @@ func (cmd *StringCmd) String() string {
 	return cmdString(cmd, cmd.val)
 }
 
-func (cmd *StringCmd) readReply(rd *proto.Reader) error {
-	cmd.val, cmd.err = rd.ReadString()
-	return cmd.err
+func (cmd *StringCmd) readReply(rd *proto.Reader) (err error) {
+	cmd.val, err = rd.ReadString()
+	return err
 }
 
 //------------------------------------------------------------------------------
@@ -700,9 +782,12 @@ type FloatCmd struct {
 
 var _ Cmder = (*FloatCmd)(nil)
 
-func NewFloatCmd(args ...interface{}) *FloatCmd {
+func NewFloatCmd(ctx context.Context, args ...interface{}) *FloatCmd {
 	return &FloatCmd{
-		baseCmd: baseCmd{args: args},
+		baseCmd: baseCmd{
+			ctx:  ctx,
+			args: args,
+		},
 	}
 }
 
@@ -718,9 +803,9 @@ func (cmd *FloatCmd) String() string {
 	return cmdString(cmd, cmd.val)
 }
 
-func (cmd *FloatCmd) readReply(rd *proto.Reader) error {
-	cmd.val, cmd.err = rd.ReadFloatReply()
-	return cmd.err
+func (cmd *FloatCmd) readReply(rd *proto.Reader) (err error) {
+	cmd.val, err = rd.ReadFloatReply()
+	return err
 }
 
 //------------------------------------------------------------------------------
@@ -733,9 +818,12 @@ type StringSliceCmd struct {
 
 var _ Cmder = (*StringSliceCmd)(nil)
 
-func NewStringSliceCmd(args ...interface{}) *StringSliceCmd {
+func NewStringSliceCmd(ctx context.Context, args ...interface{}) *StringSliceCmd {
 	return &StringSliceCmd{
-		baseCmd: baseCmd{args: args},
+		baseCmd: baseCmd{
+			ctx:  ctx,
+			args: args,
+		},
 	}
 }
 
@@ -756,7 +844,7 @@ func (cmd *StringSliceCmd) ScanSlice(container interface{}) error {
 }
 
 func (cmd *StringSliceCmd) readReply(rd *proto.Reader) error {
-	_, cmd.err = rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
+	_, err := rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
 		cmd.val = make([]string, n)
 		for i := 0; i < len(cmd.val); i++ {
 			switch s, err := rd.ReadString(); {
@@ -770,7 +858,7 @@ func (cmd *StringSliceCmd) readReply(rd *proto.Reader) error {
 		}
 		return nil, nil
 	})
-	return cmd.err
+	return err
 }
 
 //------------------------------------------------------------------------------
@@ -783,9 +871,12 @@ type BoolSliceCmd struct {
 
 var _ Cmder = (*BoolSliceCmd)(nil)
 
-func NewBoolSliceCmd(args ...interface{}) *BoolSliceCmd {
+func NewBoolSliceCmd(ctx context.Context, args ...interface{}) *BoolSliceCmd {
 	return &BoolSliceCmd{
-		baseCmd: baseCmd{args: args},
+		baseCmd: baseCmd{
+			ctx:  ctx,
+			args: args,
+		},
 	}
 }
 
@@ -802,7 +893,7 @@ func (cmd *BoolSliceCmd) String() string {
 }
 
 func (cmd *BoolSliceCmd) readReply(rd *proto.Reader) error {
-	_, cmd.err = rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
+	_, err := rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
 		cmd.val = make([]bool, n)
 		for i := 0; i < len(cmd.val); i++ {
 			n, err := rd.ReadIntReply()
@@ -813,7 +904,7 @@ func (cmd *BoolSliceCmd) readReply(rd *proto.Reader) error {
 		}
 		return nil, nil
 	})
-	return cmd.err
+	return err
 }
 
 //------------------------------------------------------------------------------
@@ -826,9 +917,12 @@ type StringStringMapCmd struct {
 
 var _ Cmder = (*StringStringMapCmd)(nil)
 
-func NewStringStringMapCmd(args ...interface{}) *StringStringMapCmd {
+func NewStringStringMapCmd(ctx context.Context, args ...interface{}) *StringStringMapCmd {
 	return &StringStringMapCmd{
-		baseCmd: baseCmd{args: args},
+		baseCmd: baseCmd{
+			ctx:  ctx,
+			args: args,
+		},
 	}
 }
 
@@ -844,8 +938,29 @@ func (cmd *StringStringMapCmd) String() string {
 	return cmdString(cmd, cmd.val)
 }
 
+// Scan scans the results from the map into a destination struct. The map keys
+// are matched in the Redis struct fields by the `redis:"field"` tag.
+func (cmd *StringStringMapCmd) Scan(dst interface{}) error {
+	if cmd.err != nil {
+		return cmd.err
+	}
+
+	strct, err := hscan.Struct(dst)
+	if err != nil {
+		return err
+	}
+
+	for k, v := range cmd.val {
+		if err := strct.Scan(k, v); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
 func (cmd *StringStringMapCmd) readReply(rd *proto.Reader) error {
-	_, cmd.err = rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
+	_, err := rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
 		cmd.val = make(map[string]string, n/2)
 		for i := int64(0); i < n; i += 2 {
 			key, err := rd.ReadString()
@@ -862,7 +977,7 @@ func (cmd *StringStringMapCmd) readReply(rd *proto.Reader) error {
 		}
 		return nil, nil
 	})
-	return cmd.err
+	return err
 }
 
 //------------------------------------------------------------------------------
@@ -875,9 +990,12 @@ type StringIntMapCmd struct {
 
 var _ Cmder = (*StringIntMapCmd)(nil)
 
-func NewStringIntMapCmd(args ...interface{}) *StringIntMapCmd {
+func NewStringIntMapCmd(ctx context.Context, args ...interface{}) *StringIntMapCmd {
 	return &StringIntMapCmd{
-		baseCmd: baseCmd{args: args},
+		baseCmd: baseCmd{
+			ctx:  ctx,
+			args: args,
+		},
 	}
 }
 
@@ -894,7 +1012,7 @@ func (cmd *StringIntMapCmd) String() string {
 }
 
 func (cmd *StringIntMapCmd) readReply(rd *proto.Reader) error {
-	_, cmd.err = rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
+	_, err := rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
 		cmd.val = make(map[string]int64, n/2)
 		for i := int64(0); i < n; i += 2 {
 			key, err := rd.ReadString()
@@ -911,7 +1029,7 @@ func (cmd *StringIntMapCmd) readReply(rd *proto.Reader) error {
 		}
 		return nil, nil
 	})
-	return cmd.err
+	return err
 }
 
 //------------------------------------------------------------------------------
@@ -924,9 +1042,12 @@ type StringStructMapCmd struct {
 
 var _ Cmder = (*StringStructMapCmd)(nil)
 
-func NewStringStructMapCmd(args ...interface{}) *StringStructMapCmd {
+func NewStringStructMapCmd(ctx context.Context, args ...interface{}) *StringStructMapCmd {
 	return &StringStructMapCmd{
-		baseCmd: baseCmd{args: args},
+		baseCmd: baseCmd{
+			ctx:  ctx,
+			args: args,
+		},
 	}
 }
 
@@ -943,7 +1064,7 @@ func (cmd *StringStructMapCmd) String() string {
 }
 
 func (cmd *StringStructMapCmd) readReply(rd *proto.Reader) error {
-	_, cmd.err = rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
+	_, err := rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
 		cmd.val = make(map[string]struct{}, n)
 		for i := int64(0); i < n; i++ {
 			key, err := rd.ReadString()
@@ -954,7 +1075,7 @@ func (cmd *StringStructMapCmd) readReply(rd *proto.Reader) error {
 		}
 		return nil, nil
 	})
-	return cmd.err
+	return err
 }
 
 //------------------------------------------------------------------------------
@@ -972,9 +1093,12 @@ type XMessageSliceCmd struct {
 
 var _ Cmder = (*XMessageSliceCmd)(nil)
 
-func NewXMessageSliceCmd(args ...interface{}) *XMessageSliceCmd {
+func NewXMessageSliceCmd(ctx context.Context, args ...interface{}) *XMessageSliceCmd {
 	return &XMessageSliceCmd{
-		baseCmd: baseCmd{args: args},
+		baseCmd: baseCmd{
+			ctx:  ctx,
+			args: args,
+		},
 	}
 }
 
@@ -991,43 +1115,21 @@ func (cmd *XMessageSliceCmd) String() string {
 }
 
 func (cmd *XMessageSliceCmd) readReply(rd *proto.Reader) error {
-	var v interface{}
-	v, cmd.err = rd.ReadArrayReply(xMessageSliceParser)
-	if cmd.err != nil {
-		return cmd.err
-	}
-	cmd.val = v.([]XMessage)
-	return nil
+	var err error
+	cmd.val, err = readXMessageSlice(rd)
+	return err
 }
 
-// Implements proto.MultiBulkParse
-func xMessageSliceParser(rd *proto.Reader, n int64) (interface{}, error) {
-	msgs := make([]XMessage, n)
-	for i := 0; i < len(msgs); i++ {
-		i := i
-		_, err := rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
-			id, err := rd.ReadString()
-			if err != nil {
-				return nil, err
-			}
-
-			var values map[string]interface{}
-
-			v, err := rd.ReadArrayReply(stringInterfaceMapParser)
-			if err != nil {
-				if err != proto.Nil {
-					return nil, err
-				}
-			} else {
-				values = v.(map[string]interface{})
-			}
+func readXMessageSlice(rd *proto.Reader) ([]XMessage, error) {
+	n, err := rd.ReadArrayLen()
+	if err != nil {
+		return nil, err
+	}
 
-			msgs[i] = XMessage{
-				ID:     id,
-				Values: values,
-			}
-			return nil, nil
-		})
+	msgs := make([]XMessage, n)
+	for i := 0; i < n; i++ {
+		var err error
+		msgs[i], err = readXMessage(rd)
 		if err != nil {
 			return nil, err
 		}
@@ -1035,7 +1137,38 @@ func xMessageSliceParser(rd *proto.Reader, n int64) (interface{}, error) {
 	return msgs, nil
 }
 
-// Implements proto.MultiBulkParse
+func readXMessage(rd *proto.Reader) (XMessage, error) {
+	n, err := rd.ReadArrayLen()
+	if err != nil {
+		return XMessage{}, err
+	}
+	if n != 2 {
+		return XMessage{}, fmt.Errorf("got %d, wanted 2", n)
+	}
+
+	id, err := rd.ReadString()
+	if err != nil {
+		return XMessage{}, err
+	}
+
+	var values map[string]interface{}
+
+	v, err := rd.ReadArrayReply(stringInterfaceMapParser)
+	if err != nil {
+		if err != proto.Nil {
+			return XMessage{}, err
+		}
+	} else {
+		values = v.(map[string]interface{})
+	}
+
+	return XMessage{
+		ID:     id,
+		Values: values,
+	}, nil
+}
+
+// stringInterfaceMapParser implements proto.MultiBulkParse.
 func stringInterfaceMapParser(rd *proto.Reader, n int64) (interface{}, error) {
 	m := make(map[string]interface{}, n/2)
 	for i := int64(0); i < n; i += 2 {
@@ -1069,9 +1202,12 @@ type XStreamSliceCmd struct {
 
 var _ Cmder = (*XStreamSliceCmd)(nil)
 
-func NewXStreamSliceCmd(args ...interface{}) *XStreamSliceCmd {
+func NewXStreamSliceCmd(ctx context.Context, args ...interface{}) *XStreamSliceCmd {
 	return &XStreamSliceCmd{
-		baseCmd: baseCmd{args: args},
+		baseCmd: baseCmd{
+			ctx:  ctx,
+			args: args,
+		},
 	}
 }
 
@@ -1088,7 +1224,7 @@ func (cmd *XStreamSliceCmd) String() string {
 }
 
 func (cmd *XStreamSliceCmd) readReply(rd *proto.Reader) error {
-	_, cmd.err = rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
+	_, err := rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
 		cmd.val = make([]XStream, n)
 		for i := 0; i < len(cmd.val); i++ {
 			i := i
@@ -1102,14 +1238,14 @@ func (cmd *XStreamSliceCmd) readReply(rd *proto.Reader) error {
 					return nil, err
 				}
 
-				v, err := rd.ReadArrayReply(xMessageSliceParser)
+				msgs, err := readXMessageSlice(rd)
 				if err != nil {
 					return nil, err
 				}
 
 				cmd.val[i] = XStream{
 					Stream:   stream,
-					Messages: v.([]XMessage),
+					Messages: msgs,
 				}
 				return nil, nil
 			})
@@ -1119,7 +1255,7 @@ func (cmd *XStreamSliceCmd) readReply(rd *proto.Reader) error {
 		}
 		return nil, nil
 	})
-	return cmd.err
+	return err
 }
 
 //------------------------------------------------------------------------------
@@ -1138,9 +1274,12 @@ type XPendingCmd struct {
 
 var _ Cmder = (*XPendingCmd)(nil)
 
-func NewXPendingCmd(args ...interface{}) *XPendingCmd {
+func NewXPendingCmd(ctx context.Context, args ...interface{}) *XPendingCmd {
 	return &XPendingCmd{
-		baseCmd: baseCmd{args: args},
+		baseCmd: baseCmd{
+			ctx:  ctx,
+			args: args,
+		},
 	}
 }
 
@@ -1157,7 +1296,7 @@ func (cmd *XPendingCmd) String() string {
 }
 
 func (cmd *XPendingCmd) readReply(rd *proto.Reader) error {
-	_, cmd.err = rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
+	_, err := rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
 		if n != 4 {
 			return nil, fmt.Errorf("got %d, wanted 4", n)
 		}
@@ -1218,7 +1357,7 @@ func (cmd *XPendingCmd) readReply(rd *proto.Reader) error {
 
 		return nil, nil
 	})
-	return cmd.err
+	return err
 }
 
 //------------------------------------------------------------------------------
@@ -1237,9 +1376,12 @@ type XPendingExtCmd struct {
 
 var _ Cmder = (*XPendingExtCmd)(nil)
 
-func NewXPendingExtCmd(args ...interface{}) *XPendingExtCmd {
+func NewXPendingExtCmd(ctx context.Context, args ...interface{}) *XPendingExtCmd {
 	return &XPendingExtCmd{
-		baseCmd: baseCmd{args: args},
+		baseCmd: baseCmd{
+			ctx:  ctx,
+			args: args,
+		},
 	}
 }
 
@@ -1256,7 +1398,7 @@ func (cmd *XPendingExtCmd) String() string {
 }
 
 func (cmd *XPendingExtCmd) readReply(rd *proto.Reader) error {
-	_, cmd.err = rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
+	_, err := rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
 		cmd.val = make([]XPendingExt, 0, n)
 		for i := int64(0); i < n; i++ {
 			_, err := rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
@@ -1298,17 +1440,17 @@ func (cmd *XPendingExtCmd) readReply(rd *proto.Reader) error {
 		}
 		return nil, nil
 	})
-	return cmd.err
+	return err
 }
 
 //------------------------------------------------------------------------------
 
 type XInfoGroupsCmd struct {
 	baseCmd
-	val []XInfoGroups
+	val []XInfoGroup
 }
 
-type XInfoGroups struct {
+type XInfoGroup struct {
 	Name            string
 	Consumers       int64
 	Pending         int64
@@ -1317,17 +1459,20 @@ type XInfoGroups struct {
 
 var _ Cmder = (*XInfoGroupsCmd)(nil)
 
-func NewXInfoGroupsCmd(stream string) *XInfoGroupsCmd {
+func NewXInfoGroupsCmd(ctx context.Context, stream string) *XInfoGroupsCmd {
 	return &XInfoGroupsCmd{
-		baseCmd: baseCmd{args: []interface{}{"xinfo", "groups", stream}},
+		baseCmd: baseCmd{
+			ctx:  ctx,
+			args: []interface{}{"xinfo", "groups", stream},
+		},
 	}
 }
 
-func (cmd *XInfoGroupsCmd) Val() []XInfoGroups {
+func (cmd *XInfoGroupsCmd) Val() []XInfoGroup {
 	return cmd.val
 }
 
-func (cmd *XInfoGroupsCmd) Result() ([]XInfoGroups, error) {
+func (cmd *XInfoGroupsCmd) Result() ([]XInfoGroup, error) {
 	return cmd.val, cmd.err
 }
 
@@ -1336,59 +1481,152 @@ func (cmd *XInfoGroupsCmd) String() string {
 }
 
 func (cmd *XInfoGroupsCmd) readReply(rd *proto.Reader) error {
-	_, cmd.err = rd.ReadArrayReply(
-		func(rd *proto.Reader, n int64) (interface{}, error) {
-			for i := int64(0); i < n; i++ {
-				v, err := rd.ReadReply(xGroupInfoParser)
-				if err != nil {
-					return nil, err
-				}
-				cmd.val = append(cmd.val, v.(XInfoGroups))
-			}
-			return nil, nil
-		})
+	n, err := rd.ReadArrayLen()
+	if err != nil {
+		return err
+	}
+
+	cmd.val = make([]XInfoGroup, n)
+
+	for i := 0; i < n; i++ {
+		cmd.val[i], err = readXGroupInfo(rd)
+		if err != nil {
+			return err
+		}
+	}
+
 	return nil
 }
 
-func xGroupInfoParser(rd *proto.Reader, n int64) (interface{}, error) {
+func readXGroupInfo(rd *proto.Reader) (XInfoGroup, error) {
+	var group XInfoGroup
+
+	n, err := rd.ReadArrayLen()
+	if err != nil {
+		return group, err
+	}
 	if n != 8 {
-		return nil, fmt.Errorf("redis: got %d elements in XINFO GROUPS reply,"+
-			"wanted 8", n)
+		return group, fmt.Errorf("redis: got %d elements in XINFO GROUPS reply, wanted 8", n)
 	}
-	var (
-		err error
-		grp XInfoGroups
-		key string
-		val string
-	)
 
 	for i := 0; i < 4; i++ {
-		key, err = rd.ReadString()
+		key, err := rd.ReadString()
 		if err != nil {
-			return nil, err
+			return group, err
 		}
-		val, err = rd.ReadString()
+
+		val, err := rd.ReadString()
 		if err != nil {
-			return nil, err
+			return group, err
 		}
+
 		switch key {
 		case "name":
-			grp.Name = val
+			group.Name = val
 		case "consumers":
-			grp.Consumers, err = strconv.ParseInt(val, 0, 64)
+			group.Consumers, err = strconv.ParseInt(val, 0, 64)
+			if err != nil {
+				return group, err
+			}
 		case "pending":
-			grp.Pending, err = strconv.ParseInt(val, 0, 64)
+			group.Pending, err = strconv.ParseInt(val, 0, 64)
+			if err != nil {
+				return group, err
+			}
 		case "last-delivered-id":
-			grp.LastDeliveredID = val
+			group.LastDeliveredID = val
+		default:
+			return group, fmt.Errorf("redis: unexpected content %s in XINFO GROUPS reply", key)
+		}
+	}
+
+	return group, nil
+}
+
+//------------------------------------------------------------------------------
+
+type XInfoStreamCmd struct {
+	baseCmd
+	val *XInfoStream
+}
+
+type XInfoStream struct {
+	Length          int64
+	RadixTreeKeys   int64
+	RadixTreeNodes  int64
+	Groups          int64
+	LastGeneratedID string
+	FirstEntry      XMessage
+	LastEntry       XMessage
+}
+
+var _ Cmder = (*XInfoStreamCmd)(nil)
+
+func NewXInfoStreamCmd(ctx context.Context, stream string) *XInfoStreamCmd {
+	return &XInfoStreamCmd{
+		baseCmd: baseCmd{
+			ctx:  ctx,
+			args: []interface{}{"xinfo", "stream", stream},
+		},
+	}
+}
+
+func (cmd *XInfoStreamCmd) Val() *XInfoStream {
+	return cmd.val
+}
+
+func (cmd *XInfoStreamCmd) Result() (*XInfoStream, error) {
+	return cmd.val, cmd.err
+}
+
+func (cmd *XInfoStreamCmd) String() string {
+	return cmdString(cmd, cmd.val)
+}
+
+func (cmd *XInfoStreamCmd) readReply(rd *proto.Reader) error {
+	v, err := rd.ReadReply(xStreamInfoParser)
+	if err != nil {
+		return err
+	}
+	cmd.val = v.(*XInfoStream)
+	return nil
+}
+
+func xStreamInfoParser(rd *proto.Reader, n int64) (interface{}, error) {
+	if n != 14 {
+		return nil, fmt.Errorf("redis: got %d elements in XINFO STREAM reply,"+
+			"wanted 14", n)
+	}
+	var info XInfoStream
+	for i := 0; i < 7; i++ {
+		key, err := rd.ReadString()
+		if err != nil {
+			return nil, err
+		}
+		switch key {
+		case "length":
+			info.Length, err = rd.ReadIntReply()
+		case "radix-tree-keys":
+			info.RadixTreeKeys, err = rd.ReadIntReply()
+		case "radix-tree-nodes":
+			info.RadixTreeNodes, err = rd.ReadIntReply()
+		case "groups":
+			info.Groups, err = rd.ReadIntReply()
+		case "last-generated-id":
+			info.LastGeneratedID, err = rd.ReadString()
+		case "first-entry":
+			info.FirstEntry, err = readXMessage(rd)
+		case "last-entry":
+			info.LastEntry, err = readXMessage(rd)
 		default:
 			return nil, fmt.Errorf("redis: unexpected content %s "+
-				"in XINFO GROUPS reply", key)
+				"in XINFO STREAM reply", key)
 		}
 		if err != nil {
 			return nil, err
 		}
 	}
-	return grp, err
+	return &info, nil
 }
 
 //------------------------------------------------------------------------------
@@ -1401,9 +1639,12 @@ type ZSliceCmd struct {
 
 var _ Cmder = (*ZSliceCmd)(nil)
 
-func NewZSliceCmd(args ...interface{}) *ZSliceCmd {
+func NewZSliceCmd(ctx context.Context, args ...interface{}) *ZSliceCmd {
 	return &ZSliceCmd{
-		baseCmd: baseCmd{args: args},
+		baseCmd: baseCmd{
+			ctx:  ctx,
+			args: args,
+		},
 	}
 }
 
@@ -1420,7 +1661,7 @@ func (cmd *ZSliceCmd) String() string {
 }
 
 func (cmd *ZSliceCmd) readReply(rd *proto.Reader) error {
-	_, cmd.err = rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
+	_, err := rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
 		cmd.val = make([]Z, n/2)
 		for i := 0; i < len(cmd.val); i++ {
 			member, err := rd.ReadString()
@@ -1440,7 +1681,7 @@ func (cmd *ZSliceCmd) readReply(rd *proto.Reader) error {
 		}
 		return nil, nil
 	})
-	return cmd.err
+	return err
 }
 
 //------------------------------------------------------------------------------
@@ -1453,9 +1694,12 @@ type ZWithKeyCmd struct {
 
 var _ Cmder = (*ZWithKeyCmd)(nil)
 
-func NewZWithKeyCmd(args ...interface{}) *ZWithKeyCmd {
+func NewZWithKeyCmd(ctx context.Context, args ...interface{}) *ZWithKeyCmd {
 	return &ZWithKeyCmd{
-		baseCmd: baseCmd{args: args},
+		baseCmd: baseCmd{
+			ctx:  ctx,
+			args: args,
+		},
 	}
 }
 
@@ -1472,7 +1716,7 @@ func (cmd *ZWithKeyCmd) String() string {
 }
 
 func (cmd *ZWithKeyCmd) readReply(rd *proto.Reader) error {
-	_, cmd.err = rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
+	_, err := rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
 		if n != 3 {
 			return nil, fmt.Errorf("got %d elements, expected 3", n)
 		}
@@ -1497,7 +1741,7 @@ func (cmd *ZWithKeyCmd) readReply(rd *proto.Reader) error {
 
 		return nil, nil
 	})
-	return cmd.err
+	return err
 }
 
 //------------------------------------------------------------------------------
@@ -1508,14 +1752,17 @@ type ScanCmd struct {
 	page   []string
 	cursor uint64
 
-	process func(cmd Cmder) error
+	process cmdable
 }
 
 var _ Cmder = (*ScanCmd)(nil)
 
-func NewScanCmd(process func(cmd Cmder) error, args ...interface{}) *ScanCmd {
+func NewScanCmd(ctx context.Context, process cmdable, args ...interface{}) *ScanCmd {
 	return &ScanCmd{
-		baseCmd: baseCmd{args: args},
+		baseCmd: baseCmd{
+			ctx:  ctx,
+			args: args,
+		},
 		process: process,
 	}
 }
@@ -1532,9 +1779,9 @@ func (cmd *ScanCmd) String() string {
 	return cmdString(cmd, cmd.page)
 }
 
-func (cmd *ScanCmd) readReply(rd *proto.Reader) error {
-	cmd.page, cmd.cursor, cmd.err = rd.ReadScanReply()
-	return cmd.err
+func (cmd *ScanCmd) readReply(rd *proto.Reader) (err error) {
+	cmd.page, cmd.cursor, err = rd.ReadScanReply()
+	return err
 }
 
 // Iterator creates a new ScanIterator.
@@ -1565,9 +1812,12 @@ type ClusterSlotsCmd struct {
 
 var _ Cmder = (*ClusterSlotsCmd)(nil)
 
-func NewClusterSlotsCmd(args ...interface{}) *ClusterSlotsCmd {
+func NewClusterSlotsCmd(ctx context.Context, args ...interface{}) *ClusterSlotsCmd {
 	return &ClusterSlotsCmd{
-		baseCmd: baseCmd{args: args},
+		baseCmd: baseCmd{
+			ctx:  ctx,
+			args: args,
+		},
 	}
 }
 
@@ -1584,7 +1834,7 @@ func (cmd *ClusterSlotsCmd) String() string {
 }
 
 func (cmd *ClusterSlotsCmd) readReply(rd *proto.Reader) error {
-	_, cmd.err = rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
+	_, err := rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
 		cmd.val = make([]ClusterSlot, n)
 		for i := 0; i < len(cmd.val); i++ {
 			n, err := rd.ReadArrayLen()
@@ -1646,7 +1896,7 @@ func (cmd *ClusterSlotsCmd) readReply(rd *proto.Reader) error {
 		}
 		return nil, nil
 	})
-	return cmd.err
+	return err
 }
 
 //------------------------------------------------------------------------------
@@ -1682,10 +1932,13 @@ type GeoLocationCmd struct {
 
 var _ Cmder = (*GeoLocationCmd)(nil)
 
-func NewGeoLocationCmd(q *GeoRadiusQuery, args ...interface{}) *GeoLocationCmd {
+func NewGeoLocationCmd(ctx context.Context, q *GeoRadiusQuery, args ...interface{}) *GeoLocationCmd {
 	return &GeoLocationCmd{
-		baseCmd: baseCmd{args: geoLocationArgs(q, args...)},
-		q:       q,
+		baseCmd: baseCmd{
+			ctx:  ctx,
+			args: geoLocationArgs(q, args...),
+		},
+		q: q,
 	}
 }
 
@@ -1735,10 +1988,9 @@ func (cmd *GeoLocationCmd) String() string {
 }
 
 func (cmd *GeoLocationCmd) readReply(rd *proto.Reader) error {
-	var v interface{}
-	v, cmd.err = rd.ReadArrayReply(newGeoLocationSliceParser(cmd.q))
-	if cmd.err != nil {
-		return cmd.err
+	v, err := rd.ReadArrayReply(newGeoLocationSliceParser(cmd.q))
+	if err != nil {
+		return err
 	}
 	cmd.locations = v.([]GeoLocation)
 	return nil
@@ -1758,7 +2010,7 @@ func newGeoLocationSliceParser(q *GeoRadiusQuery) proto.MultiBulkParse {
 					Name: vv,
 				})
 			case *GeoLocation:
-				//TODO: avoid copying
+				// TODO: avoid copying
 				locs = append(locs, *vv)
 			default:
 				return nil, fmt.Errorf("got %T, expected string or *GeoLocation", v)
@@ -1826,9 +2078,12 @@ type GeoPosCmd struct {
 
 var _ Cmder = (*GeoPosCmd)(nil)
 
-func NewGeoPosCmd(args ...interface{}) *GeoPosCmd {
+func NewGeoPosCmd(ctx context.Context, args ...interface{}) *GeoPosCmd {
 	return &GeoPosCmd{
-		baseCmd: baseCmd{args: args},
+		baseCmd: baseCmd{
+			ctx:  ctx,
+			args: args,
+		},
 	}
 }
 
@@ -1845,7 +2100,7 @@ func (cmd *GeoPosCmd) String() string {
 }
 
 func (cmd *GeoPosCmd) readReply(rd *proto.Reader) error {
-	_, cmd.err = rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
+	_, err := rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
 		cmd.val = make([]*GeoPos, n)
 		for i := 0; i < len(cmd.val); i++ {
 			i := i
@@ -1876,7 +2131,7 @@ func (cmd *GeoPosCmd) readReply(rd *proto.Reader) error {
 		}
 		return nil, nil
 	})
-	return cmd.err
+	return err
 }
 
 //------------------------------------------------------------------------------
@@ -1900,9 +2155,12 @@ type CommandsInfoCmd struct {
 
 var _ Cmder = (*CommandsInfoCmd)(nil)
 
-func NewCommandsInfoCmd(args ...interface{}) *CommandsInfoCmd {
+func NewCommandsInfoCmd(ctx context.Context, args ...interface{}) *CommandsInfoCmd {
 	return &CommandsInfoCmd{
-		baseCmd: baseCmd{args: args},
+		baseCmd: baseCmd{
+			ctx:  ctx,
+			args: args,
+		},
 	}
 }
 
@@ -1919,7 +2177,7 @@ func (cmd *CommandsInfoCmd) String() string {
 }
 
 func (cmd *CommandsInfoCmd) readReply(rd *proto.Reader) error {
-	_, cmd.err = rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
+	_, err := rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
 		cmd.val = make(map[string]*CommandInfo, n)
 		for i := int64(0); i < n; i++ {
 			v, err := rd.ReadReply(commandInfoParser)
@@ -1931,7 +2189,7 @@ func (cmd *CommandsInfoCmd) readReply(rd *proto.Reader) error {
 		}
 		return nil, nil
 	})
-	return cmd.err
+	return err
 }
 
 func commandInfoParser(rd *proto.Reader, n int64) (interface{}, error) {
@@ -2030,21 +2288,21 @@ func commandInfoParser(rd *proto.Reader, n int64) (interface{}, error) {
 //------------------------------------------------------------------------------
 
 type cmdsInfoCache struct {
-	fn func() (map[string]*CommandInfo, error)
+	fn func(ctx context.Context) (map[string]*CommandInfo, error)
 
 	once internal.Once
 	cmds map[string]*CommandInfo
 }
 
-func newCmdsInfoCache(fn func() (map[string]*CommandInfo, error)) *cmdsInfoCache {
+func newCmdsInfoCache(fn func(ctx context.Context) (map[string]*CommandInfo, error)) *cmdsInfoCache {
 	return &cmdsInfoCache{
 		fn: fn,
 	}
 }
 
-func (c *cmdsInfoCache) Get() (map[string]*CommandInfo, error) {
+func (c *cmdsInfoCache) Get(ctx context.Context) (map[string]*CommandInfo, error) {
 	err := c.once.Do(func() error {
-		cmds, err := c.fn()
+		cmds, err := c.fn(ctx)
 		if err != nil {
 			return err
 		}
@@ -2062,3 +2320,119 @@ func (c *cmdsInfoCache) Get() (map[string]*CommandInfo, error) {
 	})
 	return c.cmds, err
 }
+
+//------------------------------------------------------------------------------
+
+type SlowLog struct {
+	ID       int64
+	Time     time.Time
+	Duration time.Duration
+	Args     []string
+	// These are also optional fields emitted only by Redis 4.0 or greater:
+	// https://redis.io/commands/slowlog#output-format
+	ClientAddr string
+	ClientName string
+}
+
+type SlowLogCmd struct {
+	baseCmd
+
+	val []SlowLog
+}
+
+var _ Cmder = (*SlowLogCmd)(nil)
+
+func NewSlowLogCmd(ctx context.Context, args ...interface{}) *SlowLogCmd {
+	return &SlowLogCmd{
+		baseCmd: baseCmd{
+			ctx:  ctx,
+			args: args,
+		},
+	}
+}
+
+func (cmd *SlowLogCmd) Val() []SlowLog {
+	return cmd.val
+}
+
+func (cmd *SlowLogCmd) Result() ([]SlowLog, error) {
+	return cmd.Val(), cmd.Err()
+}
+
+func (cmd *SlowLogCmd) String() string {
+	return cmdString(cmd, cmd.val)
+}
+
+func (cmd *SlowLogCmd) readReply(rd *proto.Reader) error {
+	_, err := rd.ReadArrayReply(func(rd *proto.Reader, n int64) (interface{}, error) {
+		cmd.val = make([]SlowLog, n)
+		for i := 0; i < len(cmd.val); i++ {
+			n, err := rd.ReadArrayLen()
+			if err != nil {
+				return nil, err
+			}
+			if n < 4 {
+				err := fmt.Errorf("redis: got %d elements in slowlog get, expected at least 4", n)
+				return nil, err
+			}
+
+			id, err := rd.ReadIntReply()
+			if err != nil {
+				return nil, err
+			}
+
+			createdAt, err := rd.ReadIntReply()
+			if err != nil {
+				return nil, err
+			}
+			createdAtTime := time.Unix(createdAt, 0)
+
+			costs, err := rd.ReadIntReply()
+			if err != nil {
+				return nil, err
+			}
+			costsDuration := time.Duration(costs) * time.Microsecond
+
+			cmdLen, err := rd.ReadArrayLen()
+			if err != nil {
+				return nil, err
+			}
+			if cmdLen < 1 {
+				err := fmt.Errorf("redis: got %d elements commands reply in slowlog get, expected at least 1", cmdLen)
+				return nil, err
+			}
+
+			cmdString := make([]string, cmdLen)
+			for i := 0; i < cmdLen; i++ {
+				cmdString[i], err = rd.ReadString()
+				if err != nil {
+					return nil, err
+				}
+			}
+
+			var address, name string
+			for i := 4; i < n; i++ {
+				str, err := rd.ReadString()
+				if err != nil {
+					return nil, err
+				}
+				if i == 4 {
+					address = str
+				} else if i == 5 {
+					name = str
+				}
+			}
+
+			cmd.val[i] = SlowLog{
+				ID:         id,
+				Time:       createdAtTime,
+				Duration:   costsDuration,
+				Args:       cmdString,
+				ClientAddr: address,
+				ClientName: name,
+			}
+		}
+		return nil, nil
+	})
+	return err
+}
diff --git a/vendor/github.com/go-redis/redis/v8/commands.go b/vendor/github.com/go-redis/redis/v8/commands.go
new file mode 100644
index 0000000000..422a7c5be2
--- /dev/null
+++ b/vendor/github.com/go-redis/redis/v8/commands.go
@@ -0,0 +1,2790 @@
+package redis
+
+import (
+	"context"
+	"errors"
+	"io"
+	"time"
+
+	"github.com/go-redis/redis/v8/internal"
+)
+
+// KeepTTL is an option for Set command to keep key's existing TTL.
+// For example:
+//
+//    rdb.Set(ctx, key, value, redis.KeepTTL)
+const KeepTTL = -1
+
+func usePrecise(dur time.Duration) bool {
+	return dur < time.Second || dur%time.Second != 0
+}
+
+func formatMs(ctx context.Context, dur time.Duration) int64 {
+	if dur > 0 && dur < time.Millisecond {
+		internal.Logger.Printf(
+			ctx,
+			"specified duration is %s, but minimal supported value is %s - truncating to 1ms",
+			dur, time.Millisecond,
+		)
+		return 1
+	}
+	return int64(dur / time.Millisecond)
+}
+
+func formatSec(ctx context.Context, dur time.Duration) int64 {
+	if dur > 0 && dur < time.Second {
+		internal.Logger.Printf(
+			ctx,
+			"specified duration is %s, but minimal supported value is %s - truncating to 1s",
+			dur, time.Second,
+		)
+		return 1
+	}
+	return int64(dur / time.Second)
+}
+
+func appendArgs(dst, src []interface{}) []interface{} {
+	if len(src) == 1 {
+		return appendArg(dst, src[0])
+	}
+
+	dst = append(dst, src...)
+	return dst
+}
+
+func appendArg(dst []interface{}, arg interface{}) []interface{} {
+	switch arg := arg.(type) {
+	case []string:
+		for _, s := range arg {
+			dst = append(dst, s)
+		}
+		return dst
+	case []interface{}:
+		dst = append(dst, arg...)
+		return dst
+	case map[string]interface{}:
+		for k, v := range arg {
+			dst = append(dst, k, v)
+		}
+		return dst
+	default:
+		return append(dst, arg)
+	}
+}
+
+type Cmdable interface {
+	Pipeline() Pipeliner
+	Pipelined(ctx context.Context, fn func(Pipeliner) error) ([]Cmder, error)
+
+	TxPipelined(ctx context.Context, fn func(Pipeliner) error) ([]Cmder, error)
+	TxPipeline() Pipeliner
+
+	Command(ctx context.Context) *CommandsInfoCmd
+	ClientGetName(ctx context.Context) *StringCmd
+	Echo(ctx context.Context, message interface{}) *StringCmd
+	Ping(ctx context.Context) *StatusCmd
+	Quit(ctx context.Context) *StatusCmd
+	Del(ctx context.Context, keys ...string) *IntCmd
+	Unlink(ctx context.Context, keys ...string) *IntCmd
+	Dump(ctx context.Context, key string) *StringCmd
+	Exists(ctx context.Context, keys ...string) *IntCmd
+	Expire(ctx context.Context, key string, expiration time.Duration) *BoolCmd
+	ExpireAt(ctx context.Context, key string, tm time.Time) *BoolCmd
+	Keys(ctx context.Context, pattern string) *StringSliceCmd
+	Migrate(ctx context.Context, host, port, key string, db int, timeout time.Duration) *StatusCmd
+	Move(ctx context.Context, key string, db int) *BoolCmd
+	ObjectRefCount(ctx context.Context, key string) *IntCmd
+	ObjectEncoding(ctx context.Context, key string) *StringCmd
+	ObjectIdleTime(ctx context.Context, key string) *DurationCmd
+	Persist(ctx context.Context, key string) *BoolCmd
+	PExpire(ctx context.Context, key string, expiration time.Duration) *BoolCmd
+	PExpireAt(ctx context.Context, key string, tm time.Time) *BoolCmd
+	PTTL(ctx context.Context, key string) *DurationCmd
+	RandomKey(ctx context.Context) *StringCmd
+	Rename(ctx context.Context, key, newkey string) *StatusCmd
+	RenameNX(ctx context.Context, key, newkey string) *BoolCmd
+	Restore(ctx context.Context, key string, ttl time.Duration, value string) *StatusCmd
+	RestoreReplace(ctx context.Context, key string, ttl time.Duration, value string) *StatusCmd
+	Sort(ctx context.Context, key string, sort *Sort) *StringSliceCmd
+	SortStore(ctx context.Context, key, store string, sort *Sort) *IntCmd
+	SortInterfaces(ctx context.Context, key string, sort *Sort) *SliceCmd
+	Touch(ctx context.Context, keys ...string) *IntCmd
+	TTL(ctx context.Context, key string) *DurationCmd
+	Type(ctx context.Context, key string) *StatusCmd
+	Append(ctx context.Context, key, value string) *IntCmd
+	Decr(ctx context.Context, key string) *IntCmd
+	DecrBy(ctx context.Context, key string, decrement int64) *IntCmd
+	Get(ctx context.Context, key string) *StringCmd
+	GetRange(ctx context.Context, key string, start, end int64) *StringCmd
+	GetSet(ctx context.Context, key string, value interface{}) *StringCmd
+	Incr(ctx context.Context, key string) *IntCmd
+	IncrBy(ctx context.Context, key string, value int64) *IntCmd
+	IncrByFloat(ctx context.Context, key string, value float64) *FloatCmd
+	MGet(ctx context.Context, keys ...string) *SliceCmd
+	MSet(ctx context.Context, values ...interface{}) *StatusCmd
+	MSetNX(ctx context.Context, values ...interface{}) *BoolCmd
+	Set(ctx context.Context, key string, value interface{}, expiration time.Duration) *StatusCmd
+	SetEX(ctx context.Context, key string, value interface{}, expiration time.Duration) *StatusCmd
+	SetNX(ctx context.Context, key string, value interface{}, expiration time.Duration) *BoolCmd
+	SetXX(ctx context.Context, key string, value interface{}, expiration time.Duration) *BoolCmd
+	SetRange(ctx context.Context, key string, offset int64, value string) *IntCmd
+	StrLen(ctx context.Context, key string) *IntCmd
+
+	GetBit(ctx context.Context, key string, offset int64) *IntCmd
+	SetBit(ctx context.Context, key string, offset int64, value int) *IntCmd
+	BitCount(ctx context.Context, key string, bitCount *BitCount) *IntCmd
+	BitOpAnd(ctx context.Context, destKey string, keys ...string) *IntCmd
+	BitOpOr(ctx context.Context, destKey string, keys ...string) *IntCmd
+	BitOpXor(ctx context.Context, destKey string, keys ...string) *IntCmd
+	BitOpNot(ctx context.Context, destKey string, key string) *IntCmd
+	BitPos(ctx context.Context, key string, bit int64, pos ...int64) *IntCmd
+	BitField(ctx context.Context, key string, args ...interface{}) *IntSliceCmd
+
+	Scan(ctx context.Context, cursor uint64, match string, count int64) *ScanCmd
+	ScanType(ctx context.Context, cursor uint64, match string, count int64, keyType string) *ScanCmd
+	SScan(ctx context.Context, key string, cursor uint64, match string, count int64) *ScanCmd
+	HScan(ctx context.Context, key string, cursor uint64, match string, count int64) *ScanCmd
+	ZScan(ctx context.Context, key string, cursor uint64, match string, count int64) *ScanCmd
+
+	HDel(ctx context.Context, key string, fields ...string) *IntCmd
+	HExists(ctx context.Context, key, field string) *BoolCmd
+	HGet(ctx context.Context, key, field string) *StringCmd
+	HGetAll(ctx context.Context, key string) *StringStringMapCmd
+	HIncrBy(ctx context.Context, key, field string, incr int64) *IntCmd
+	HIncrByFloat(ctx context.Context, key, field string, incr float64) *FloatCmd
+	HKeys(ctx context.Context, key string) *StringSliceCmd
+	HLen(ctx context.Context, key string) *IntCmd
+	HMGet(ctx context.Context, key string, fields ...string) *SliceCmd
+	HSet(ctx context.Context, key string, values ...interface{}) *IntCmd
+	HMSet(ctx context.Context, key string, values ...interface{}) *BoolCmd
+	HSetNX(ctx context.Context, key, field string, value interface{}) *BoolCmd
+	HVals(ctx context.Context, key string) *StringSliceCmd
+
+	BLPop(ctx context.Context, timeout time.Duration, keys ...string) *StringSliceCmd
+	BRPop(ctx context.Context, timeout time.Duration, keys ...string) *StringSliceCmd
+	BRPopLPush(ctx context.Context, source, destination string, timeout time.Duration) *StringCmd
+	LIndex(ctx context.Context, key string, index int64) *StringCmd
+	LInsert(ctx context.Context, key, op string, pivot, value interface{}) *IntCmd
+	LInsertBefore(ctx context.Context, key string, pivot, value interface{}) *IntCmd
+	LInsertAfter(ctx context.Context, key string, pivot, value interface{}) *IntCmd
+	LLen(ctx context.Context, key string) *IntCmd
+	LPop(ctx context.Context, key string) *StringCmd
+	LPos(ctx context.Context, key string, value string, args LPosArgs) *IntCmd
+	LPosCount(ctx context.Context, key string, value string, count int64, args LPosArgs) *IntSliceCmd
+	LPush(ctx context.Context, key string, values ...interface{}) *IntCmd
+	LPushX(ctx context.Context, key string, values ...interface{}) *IntCmd
+	LRange(ctx context.Context, key string, start, stop int64) *StringSliceCmd
+	LRem(ctx context.Context, key string, count int64, value interface{}) *IntCmd
+	LSet(ctx context.Context, key string, index int64, value interface{}) *StatusCmd
+	LTrim(ctx context.Context, key string, start, stop int64) *StatusCmd
+	RPop(ctx context.Context, key string) *StringCmd
+	RPopLPush(ctx context.Context, source, destination string) *StringCmd
+	RPush(ctx context.Context, key string, values ...interface{}) *IntCmd
+	RPushX(ctx context.Context, key string, values ...interface{}) *IntCmd
+
+	SAdd(ctx context.Context, key string, members ...interface{}) *IntCmd
+	SCard(ctx context.Context, key string) *IntCmd
+	SDiff(ctx context.Context, keys ...string) *StringSliceCmd
+	SDiffStore(ctx context.Context, destination string, keys ...string) *IntCmd
+	SInter(ctx context.Context, keys ...string) *StringSliceCmd
+	SInterStore(ctx context.Context, destination string, keys ...string) *IntCmd
+	SIsMember(ctx context.Context, key string, member interface{}) *BoolCmd
+	SMembers(ctx context.Context, key string) *StringSliceCmd
+	SMembersMap(ctx context.Context, key string) *StringStructMapCmd
+	SMove(ctx context.Context, source, destination string, member interface{}) *BoolCmd
+	SPop(ctx context.Context, key string) *StringCmd
+	SPopN(ctx context.Context, key string, count int64) *StringSliceCmd
+	SRandMember(ctx context.Context, key string) *StringCmd
+	SRandMemberN(ctx context.Context, key string, count int64) *StringSliceCmd
+	SRem(ctx context.Context, key string, members ...interface{}) *IntCmd
+	SUnion(ctx context.Context, keys ...string) *StringSliceCmd
+	SUnionStore(ctx context.Context, destination string, keys ...string) *IntCmd
+
+	XAdd(ctx context.Context, a *XAddArgs) *StringCmd
+	XDel(ctx context.Context, stream string, ids ...string) *IntCmd
+	XLen(ctx context.Context, stream string) *IntCmd
+	XRange(ctx context.Context, stream, start, stop string) *XMessageSliceCmd
+	XRangeN(ctx context.Context, stream, start, stop string, count int64) *XMessageSliceCmd
+	XRevRange(ctx context.Context, stream string, start, stop string) *XMessageSliceCmd
+	XRevRangeN(ctx context.Context, stream string, start, stop string, count int64) *XMessageSliceCmd
+	XRead(ctx context.Context, a *XReadArgs) *XStreamSliceCmd
+	XReadStreams(ctx context.Context, streams ...string) *XStreamSliceCmd
+	XGroupCreate(ctx context.Context, stream, group, start string) *StatusCmd
+	XGroupCreateMkStream(ctx context.Context, stream, group, start string) *StatusCmd
+	XGroupSetID(ctx context.Context, stream, group, start string) *StatusCmd
+	XGroupDestroy(ctx context.Context, stream, group string) *IntCmd
+	XGroupDelConsumer(ctx context.Context, stream, group, consumer string) *IntCmd
+	XReadGroup(ctx context.Context, a *XReadGroupArgs) *XStreamSliceCmd
+	XAck(ctx context.Context, stream, group string, ids ...string) *IntCmd
+	XPending(ctx context.Context, stream, group string) *XPendingCmd
+	XPendingExt(ctx context.Context, a *XPendingExtArgs) *XPendingExtCmd
+	XClaim(ctx context.Context, a *XClaimArgs) *XMessageSliceCmd
+	XClaimJustID(ctx context.Context, a *XClaimArgs) *StringSliceCmd
+	XTrim(ctx context.Context, key string, maxLen int64) *IntCmd
+	XTrimApprox(ctx context.Context, key string, maxLen int64) *IntCmd
+	XInfoGroups(ctx context.Context, key string) *XInfoGroupsCmd
+	XInfoStream(ctx context.Context, key string) *XInfoStreamCmd
+
+	BZPopMax(ctx context.Context, timeout time.Duration, keys ...string) *ZWithKeyCmd
+	BZPopMin(ctx context.Context, timeout time.Duration, keys ...string) *ZWithKeyCmd
+	ZAdd(ctx context.Context, key string, members ...*Z) *IntCmd
+	ZAddNX(ctx context.Context, key string, members ...*Z) *IntCmd
+	ZAddXX(ctx context.Context, key string, members ...*Z) *IntCmd
+	ZAddCh(ctx context.Context, key string, members ...*Z) *IntCmd
+	ZAddNXCh(ctx context.Context, key string, members ...*Z) *IntCmd
+	ZAddXXCh(ctx context.Context, key string, members ...*Z) *IntCmd
+	ZIncr(ctx context.Context, key string, member *Z) *FloatCmd
+	ZIncrNX(ctx context.Context, key string, member *Z) *FloatCmd
+	ZIncrXX(ctx context.Context, key string, member *Z) *FloatCmd
+	ZCard(ctx context.Context, key string) *IntCmd
+	ZCount(ctx context.Context, key, min, max string) *IntCmd
+	ZLexCount(ctx context.Context, key, min, max string) *IntCmd
+	ZIncrBy(ctx context.Context, key string, increment float64, member string) *FloatCmd
+	ZInterStore(ctx context.Context, destination string, store *ZStore) *IntCmd
+	ZPopMax(ctx context.Context, key string, count ...int64) *ZSliceCmd
+	ZPopMin(ctx context.Context, key string, count ...int64) *ZSliceCmd
+	ZRange(ctx context.Context, key string, start, stop int64) *StringSliceCmd
+	ZRangeWithScores(ctx context.Context, key string, start, stop int64) *ZSliceCmd
+	ZRangeByScore(ctx context.Context, key string, opt *ZRangeBy) *StringSliceCmd
+	ZRangeByLex(ctx context.Context, key string, opt *ZRangeBy) *StringSliceCmd
+	ZRangeByScoreWithScores(ctx context.Context, key string, opt *ZRangeBy) *ZSliceCmd
+	ZRank(ctx context.Context, key, member string) *IntCmd
+	ZRem(ctx context.Context, key string, members ...interface{}) *IntCmd
+	ZRemRangeByRank(ctx context.Context, key string, start, stop int64) *IntCmd
+	ZRemRangeByScore(ctx context.Context, key, min, max string) *IntCmd
+	ZRemRangeByLex(ctx context.Context, key, min, max string) *IntCmd
+	ZRevRange(ctx context.Context, key string, start, stop int64) *StringSliceCmd
+	ZRevRangeWithScores(ctx context.Context, key string, start, stop int64) *ZSliceCmd
+	ZRevRangeByScore(ctx context.Context, key string, opt *ZRangeBy) *StringSliceCmd
+	ZRevRangeByLex(ctx context.Context, key string, opt *ZRangeBy) *StringSliceCmd
+	ZRevRangeByScoreWithScores(ctx context.Context, key string, opt *ZRangeBy) *ZSliceCmd
+	ZRevRank(ctx context.Context, key, member string) *IntCmd
+	ZScore(ctx context.Context, key, member string) *FloatCmd
+	ZUnionStore(ctx context.Context, dest string, store *ZStore) *IntCmd
+
+	PFAdd(ctx context.Context, key string, els ...interface{}) *IntCmd
+	PFCount(ctx context.Context, keys ...string) *IntCmd
+	PFMerge(ctx context.Context, dest string, keys ...string) *StatusCmd
+
+	BgRewriteAOF(ctx context.Context) *StatusCmd
+	BgSave(ctx context.Context) *StatusCmd
+	ClientKill(ctx context.Context, ipPort string) *StatusCmd
+	ClientKillByFilter(ctx context.Context, keys ...string) *IntCmd
+	ClientList(ctx context.Context) *StringCmd
+	ClientPause(ctx context.Context, dur time.Duration) *BoolCmd
+	ClientID(ctx context.Context) *IntCmd
+	ConfigGet(ctx context.Context, parameter string) *SliceCmd
+	ConfigResetStat(ctx context.Context) *StatusCmd
+	ConfigSet(ctx context.Context, parameter, value string) *StatusCmd
+	ConfigRewrite(ctx context.Context) *StatusCmd
+	DBSize(ctx context.Context) *IntCmd
+	FlushAll(ctx context.Context) *StatusCmd
+	FlushAllAsync(ctx context.Context) *StatusCmd
+	FlushDB(ctx context.Context) *StatusCmd
+	FlushDBAsync(ctx context.Context) *StatusCmd
+	Info(ctx context.Context, section ...string) *StringCmd
+	LastSave(ctx context.Context) *IntCmd
+	Save(ctx context.Context) *StatusCmd
+	Shutdown(ctx context.Context) *StatusCmd
+	ShutdownSave(ctx context.Context) *StatusCmd
+	ShutdownNoSave(ctx context.Context) *StatusCmd
+	SlaveOf(ctx context.Context, host, port string) *StatusCmd
+	Time(ctx context.Context) *TimeCmd
+	DebugObject(ctx context.Context, key string) *StringCmd
+	ReadOnly(ctx context.Context) *StatusCmd
+	ReadWrite(ctx context.Context) *StatusCmd
+	MemoryUsage(ctx context.Context, key string, samples ...int) *IntCmd
+
+	Eval(ctx context.Context, script string, keys []string, args ...interface{}) *Cmd
+	EvalSha(ctx context.Context, sha1 string, keys []string, args ...interface{}) *Cmd
+	ScriptExists(ctx context.Context, hashes ...string) *BoolSliceCmd
+	ScriptFlush(ctx context.Context) *StatusCmd
+	ScriptKill(ctx context.Context) *StatusCmd
+	ScriptLoad(ctx context.Context, script string) *StringCmd
+
+	Publish(ctx context.Context, channel string, message interface{}) *IntCmd
+	PubSubChannels(ctx context.Context, pattern string) *StringSliceCmd
+	PubSubNumSub(ctx context.Context, channels ...string) *StringIntMapCmd
+	PubSubNumPat(ctx context.Context) *IntCmd
+
+	ClusterSlots(ctx context.Context) *ClusterSlotsCmd
+	ClusterNodes(ctx context.Context) *StringCmd
+	ClusterMeet(ctx context.Context, host, port string) *StatusCmd
+	ClusterForget(ctx context.Context, nodeID string) *StatusCmd
+	ClusterReplicate(ctx context.Context, nodeID string) *StatusCmd
+	ClusterResetSoft(ctx context.Context) *StatusCmd
+	ClusterResetHard(ctx context.Context) *StatusCmd
+	ClusterInfo(ctx context.Context) *StringCmd
+	ClusterKeySlot(ctx context.Context, key string) *IntCmd
+	ClusterGetKeysInSlot(ctx context.Context, slot int, count int) *StringSliceCmd
+	ClusterCountFailureReports(ctx context.Context, nodeID string) *IntCmd
+	ClusterCountKeysInSlot(ctx context.Context, slot int) *IntCmd
+	ClusterDelSlots(ctx context.Context, slots ...int) *StatusCmd
+	ClusterDelSlotsRange(ctx context.Context, min, max int) *StatusCmd
+	ClusterSaveConfig(ctx context.Context) *StatusCmd
+	ClusterSlaves(ctx context.Context, nodeID string) *StringSliceCmd
+	ClusterFailover(ctx context.Context) *StatusCmd
+	ClusterAddSlots(ctx context.Context, slots ...int) *StatusCmd
+	ClusterAddSlotsRange(ctx context.Context, min, max int) *StatusCmd
+
+	GeoAdd(ctx context.Context, key string, geoLocation ...*GeoLocation) *IntCmd
+	GeoPos(ctx context.Context, key string, members ...string) *GeoPosCmd
+	GeoRadius(ctx context.Context, key string, longitude, latitude float64, query *GeoRadiusQuery) *GeoLocationCmd
+	GeoRadiusStore(ctx context.Context, key string, longitude, latitude float64, query *GeoRadiusQuery) *IntCmd
+	GeoRadiusByMember(ctx context.Context, key, member string, query *GeoRadiusQuery) *GeoLocationCmd
+	GeoRadiusByMemberStore(ctx context.Context, key, member string, query *GeoRadiusQuery) *IntCmd
+	GeoDist(ctx context.Context, key string, member1, member2, unit string) *FloatCmd
+	GeoHash(ctx context.Context, key string, members ...string) *StringSliceCmd
+}
+
+type StatefulCmdable interface {
+	Cmdable
+	Auth(ctx context.Context, password string) *StatusCmd
+	AuthACL(ctx context.Context, username, password string) *StatusCmd
+	Select(ctx context.Context, index int) *StatusCmd
+	SwapDB(ctx context.Context, index1, index2 int) *StatusCmd
+	ClientSetName(ctx context.Context, name string) *BoolCmd
+}
+
+var (
+	_ Cmdable = (*Client)(nil)
+	_ Cmdable = (*Tx)(nil)
+	_ Cmdable = (*Ring)(nil)
+	_ Cmdable = (*ClusterClient)(nil)
+)
+
+type cmdable func(ctx context.Context, cmd Cmder) error
+
+type statefulCmdable func(ctx context.Context, cmd Cmder) error
+
+//------------------------------------------------------------------------------
+
+func (c statefulCmdable) Auth(ctx context.Context, password string) *StatusCmd {
+	cmd := NewStatusCmd(ctx, "auth", password)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+// Perform an AUTH command, using the given user and pass.
+// Should be used to authenticate the current connection with one of the connections defined in the ACL list
+// when connecting to a Redis 6.0 instance, or greater, that is using the Redis ACL system.
+func (c statefulCmdable) AuthACL(ctx context.Context, username, password string) *StatusCmd {
+	cmd := NewStatusCmd(ctx, "auth", username, password)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) Wait(ctx context.Context, numSlaves int, timeout time.Duration) *IntCmd {
+	cmd := NewIntCmd(ctx, "wait", numSlaves, int(timeout/time.Millisecond))
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c statefulCmdable) Select(ctx context.Context, index int) *StatusCmd {
+	cmd := NewStatusCmd(ctx, "select", index)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c statefulCmdable) SwapDB(ctx context.Context, index1, index2 int) *StatusCmd {
+	cmd := NewStatusCmd(ctx, "swapdb", index1, index2)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+// ClientSetName assigns a name to the connection.
+func (c statefulCmdable) ClientSetName(ctx context.Context, name string) *BoolCmd {
+	cmd := NewBoolCmd(ctx, "client", "setname", name)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+//------------------------------------------------------------------------------
+
+func (c cmdable) Command(ctx context.Context) *CommandsInfoCmd {
+	cmd := NewCommandsInfoCmd(ctx, "command")
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+// ClientGetName returns the name of the connection.
+func (c cmdable) ClientGetName(ctx context.Context) *StringCmd {
+	cmd := NewStringCmd(ctx, "client", "getname")
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) Echo(ctx context.Context, message interface{}) *StringCmd {
+	cmd := NewStringCmd(ctx, "echo", message)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) Ping(ctx context.Context) *StatusCmd {
+	cmd := NewStatusCmd(ctx, "ping")
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) Quit(ctx context.Context) *StatusCmd {
+	panic("not implemented")
+}
+
+func (c cmdable) Del(ctx context.Context, keys ...string) *IntCmd {
+	args := make([]interface{}, 1+len(keys))
+	args[0] = "del"
+	for i, key := range keys {
+		args[1+i] = key
+	}
+	cmd := NewIntCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) Unlink(ctx context.Context, keys ...string) *IntCmd {
+	args := make([]interface{}, 1+len(keys))
+	args[0] = "unlink"
+	for i, key := range keys {
+		args[1+i] = key
+	}
+	cmd := NewIntCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) Dump(ctx context.Context, key string) *StringCmd {
+	cmd := NewStringCmd(ctx, "dump", key)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) Exists(ctx context.Context, keys ...string) *IntCmd {
+	args := make([]interface{}, 1+len(keys))
+	args[0] = "exists"
+	for i, key := range keys {
+		args[1+i] = key
+	}
+	cmd := NewIntCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) Expire(ctx context.Context, key string, expiration time.Duration) *BoolCmd {
+	cmd := NewBoolCmd(ctx, "expire", key, formatSec(ctx, expiration))
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ExpireAt(ctx context.Context, key string, tm time.Time) *BoolCmd {
+	cmd := NewBoolCmd(ctx, "expireat", key, tm.Unix())
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) Keys(ctx context.Context, pattern string) *StringSliceCmd {
+	cmd := NewStringSliceCmd(ctx, "keys", pattern)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) Migrate(ctx context.Context, host, port, key string, db int, timeout time.Duration) *StatusCmd {
+	cmd := NewStatusCmd(
+		ctx,
+		"migrate",
+		host,
+		port,
+		key,
+		db,
+		formatMs(ctx, timeout),
+	)
+	cmd.setReadTimeout(timeout)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) Move(ctx context.Context, key string, db int) *BoolCmd {
+	cmd := NewBoolCmd(ctx, "move", key, db)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ObjectRefCount(ctx context.Context, key string) *IntCmd {
+	cmd := NewIntCmd(ctx, "object", "refcount", key)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ObjectEncoding(ctx context.Context, key string) *StringCmd {
+	cmd := NewStringCmd(ctx, "object", "encoding", key)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ObjectIdleTime(ctx context.Context, key string) *DurationCmd {
+	cmd := NewDurationCmd(ctx, time.Second, "object", "idletime", key)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) Persist(ctx context.Context, key string) *BoolCmd {
+	cmd := NewBoolCmd(ctx, "persist", key)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) PExpire(ctx context.Context, key string, expiration time.Duration) *BoolCmd {
+	cmd := NewBoolCmd(ctx, "pexpire", key, formatMs(ctx, expiration))
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) PExpireAt(ctx context.Context, key string, tm time.Time) *BoolCmd {
+	cmd := NewBoolCmd(
+		ctx,
+		"pexpireat",
+		key,
+		tm.UnixNano()/int64(time.Millisecond),
+	)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) PTTL(ctx context.Context, key string) *DurationCmd {
+	cmd := NewDurationCmd(ctx, time.Millisecond, "pttl", key)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) RandomKey(ctx context.Context) *StringCmd {
+	cmd := NewStringCmd(ctx, "randomkey")
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) Rename(ctx context.Context, key, newkey string) *StatusCmd {
+	cmd := NewStatusCmd(ctx, "rename", key, newkey)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) RenameNX(ctx context.Context, key, newkey string) *BoolCmd {
+	cmd := NewBoolCmd(ctx, "renamenx", key, newkey)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) Restore(ctx context.Context, key string, ttl time.Duration, value string) *StatusCmd {
+	cmd := NewStatusCmd(
+		ctx,
+		"restore",
+		key,
+		formatMs(ctx, ttl),
+		value,
+	)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) RestoreReplace(ctx context.Context, key string, ttl time.Duration, value string) *StatusCmd {
+	cmd := NewStatusCmd(
+		ctx,
+		"restore",
+		key,
+		formatMs(ctx, ttl),
+		value,
+		"replace",
+	)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+type Sort struct {
+	By            string
+	Offset, Count int64
+	Get           []string
+	Order         string
+	Alpha         bool
+}
+
+func (sort *Sort) args(key string) []interface{} {
+	args := []interface{}{"sort", key}
+	if sort.By != "" {
+		args = append(args, "by", sort.By)
+	}
+	if sort.Offset != 0 || sort.Count != 0 {
+		args = append(args, "limit", sort.Offset, sort.Count)
+	}
+	for _, get := range sort.Get {
+		args = append(args, "get", get)
+	}
+	if sort.Order != "" {
+		args = append(args, sort.Order)
+	}
+	if sort.Alpha {
+		args = append(args, "alpha")
+	}
+	return args
+}
+
+func (c cmdable) Sort(ctx context.Context, key string, sort *Sort) *StringSliceCmd {
+	cmd := NewStringSliceCmd(ctx, sort.args(key)...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) SortStore(ctx context.Context, key, store string, sort *Sort) *IntCmd {
+	args := sort.args(key)
+	if store != "" {
+		args = append(args, "store", store)
+	}
+	cmd := NewIntCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) SortInterfaces(ctx context.Context, key string, sort *Sort) *SliceCmd {
+	cmd := NewSliceCmd(ctx, sort.args(key)...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) Touch(ctx context.Context, keys ...string) *IntCmd {
+	args := make([]interface{}, len(keys)+1)
+	args[0] = "touch"
+	for i, key := range keys {
+		args[i+1] = key
+	}
+	cmd := NewIntCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) TTL(ctx context.Context, key string) *DurationCmd {
+	cmd := NewDurationCmd(ctx, time.Second, "ttl", key)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) Type(ctx context.Context, key string) *StatusCmd {
+	cmd := NewStatusCmd(ctx, "type", key)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) Append(ctx context.Context, key, value string) *IntCmd {
+	cmd := NewIntCmd(ctx, "append", key, value)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) Decr(ctx context.Context, key string) *IntCmd {
+	cmd := NewIntCmd(ctx, "decr", key)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) DecrBy(ctx context.Context, key string, decrement int64) *IntCmd {
+	cmd := NewIntCmd(ctx, "decrby", key, decrement)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+// Redis `GET key` command. It returns redis.Nil error when key does not exist.
+func (c cmdable) Get(ctx context.Context, key string) *StringCmd {
+	cmd := NewStringCmd(ctx, "get", key)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) GetRange(ctx context.Context, key string, start, end int64) *StringCmd {
+	cmd := NewStringCmd(ctx, "getrange", key, start, end)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) GetSet(ctx context.Context, key string, value interface{}) *StringCmd {
+	cmd := NewStringCmd(ctx, "getset", key, value)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) Incr(ctx context.Context, key string) *IntCmd {
+	cmd := NewIntCmd(ctx, "incr", key)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) IncrBy(ctx context.Context, key string, value int64) *IntCmd {
+	cmd := NewIntCmd(ctx, "incrby", key, value)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) IncrByFloat(ctx context.Context, key string, value float64) *FloatCmd {
+	cmd := NewFloatCmd(ctx, "incrbyfloat", key, value)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) MGet(ctx context.Context, keys ...string) *SliceCmd {
+	args := make([]interface{}, 1+len(keys))
+	args[0] = "mget"
+	for i, key := range keys {
+		args[1+i] = key
+	}
+	cmd := NewSliceCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+// MSet is like Set but accepts multiple values:
+//   - MSet("key1", "value1", "key2", "value2")
+//   - MSet([]string{"key1", "value1", "key2", "value2"})
+//   - MSet(map[string]interface{}{"key1": "value1", "key2": "value2"})
+func (c cmdable) MSet(ctx context.Context, values ...interface{}) *StatusCmd {
+	args := make([]interface{}, 1, 1+len(values))
+	args[0] = "mset"
+	args = appendArgs(args, values)
+	cmd := NewStatusCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+// MSetNX is like SetNX but accepts multiple values:
+//   - MSetNX("key1", "value1", "key2", "value2")
+//   - MSetNX([]string{"key1", "value1", "key2", "value2"})
+//   - MSetNX(map[string]interface{}{"key1": "value1", "key2": "value2"})
+func (c cmdable) MSetNX(ctx context.Context, values ...interface{}) *BoolCmd {
+	args := make([]interface{}, 1, 1+len(values))
+	args[0] = "msetnx"
+	args = appendArgs(args, values)
+	cmd := NewBoolCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+// Redis `SET key value [expiration]` command.
+// Use expiration for `SETEX`-like behavior.
+//
+// Zero expiration means the key has no expiration time.
+// KeepTTL(-1) expiration is a Redis KEEPTTL option to keep existing TTL.
+func (c cmdable) Set(ctx context.Context, key string, value interface{}, expiration time.Duration) *StatusCmd {
+	args := make([]interface{}, 3, 5)
+	args[0] = "set"
+	args[1] = key
+	args[2] = value
+	if expiration > 0 {
+		if usePrecise(expiration) {
+			args = append(args, "px", formatMs(ctx, expiration))
+		} else {
+			args = append(args, "ex", formatSec(ctx, expiration))
+		}
+	} else if expiration == KeepTTL {
+		args = append(args, "keepttl")
+	}
+
+	cmd := NewStatusCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+// Redis `SETEX key expiration value` command.
+func (c cmdable) SetEX(ctx context.Context, key string, value interface{}, expiration time.Duration) *StatusCmd {
+	cmd := NewStatusCmd(ctx, "setex", key, formatSec(ctx, expiration), value)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+// Redis `SET key value [expiration] NX` command.
+//
+// Zero expiration means the key has no expiration time.
+// KeepTTL(-1) expiration is a Redis KEEPTTL option to keep existing TTL.
+func (c cmdable) SetNX(ctx context.Context, key string, value interface{}, expiration time.Duration) *BoolCmd {
+	var cmd *BoolCmd
+	switch expiration {
+	case 0:
+		// Use old `SETNX` to support old Redis versions.
+		cmd = NewBoolCmd(ctx, "setnx", key, value)
+	case KeepTTL:
+		cmd = NewBoolCmd(ctx, "set", key, value, "keepttl", "nx")
+	default:
+		if usePrecise(expiration) {
+			cmd = NewBoolCmd(ctx, "set", key, value, "px", formatMs(ctx, expiration), "nx")
+		} else {
+			cmd = NewBoolCmd(ctx, "set", key, value, "ex", formatSec(ctx, expiration), "nx")
+		}
+	}
+
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+// Redis `SET key value [expiration] XX` command.
+//
+// Zero expiration means the key has no expiration time.
+// KeepTTL(-1) expiration is a Redis KEEPTTL option to keep existing TTL.
+func (c cmdable) SetXX(ctx context.Context, key string, value interface{}, expiration time.Duration) *BoolCmd {
+	var cmd *BoolCmd
+	switch expiration {
+	case 0:
+		cmd = NewBoolCmd(ctx, "set", key, value, "xx")
+	case KeepTTL:
+		cmd = NewBoolCmd(ctx, "set", key, value, "keepttl", "xx")
+	default:
+		if usePrecise(expiration) {
+			cmd = NewBoolCmd(ctx, "set", key, value, "px", formatMs(ctx, expiration), "xx")
+		} else {
+			cmd = NewBoolCmd(ctx, "set", key, value, "ex", formatSec(ctx, expiration), "xx")
+		}
+	}
+
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) SetRange(ctx context.Context, key string, offset int64, value string) *IntCmd {
+	cmd := NewIntCmd(ctx, "setrange", key, offset, value)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) StrLen(ctx context.Context, key string) *IntCmd {
+	cmd := NewIntCmd(ctx, "strlen", key)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+//------------------------------------------------------------------------------
+
+func (c cmdable) GetBit(ctx context.Context, key string, offset int64) *IntCmd {
+	cmd := NewIntCmd(ctx, "getbit", key, offset)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) SetBit(ctx context.Context, key string, offset int64, value int) *IntCmd {
+	cmd := NewIntCmd(
+		ctx,
+		"setbit",
+		key,
+		offset,
+		value,
+	)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+type BitCount struct {
+	Start, End int64
+}
+
+func (c cmdable) BitCount(ctx context.Context, key string, bitCount *BitCount) *IntCmd {
+	args := []interface{}{"bitcount", key}
+	if bitCount != nil {
+		args = append(
+			args,
+			bitCount.Start,
+			bitCount.End,
+		)
+	}
+	cmd := NewIntCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) bitOp(ctx context.Context, op, destKey string, keys ...string) *IntCmd {
+	args := make([]interface{}, 3+len(keys))
+	args[0] = "bitop"
+	args[1] = op
+	args[2] = destKey
+	for i, key := range keys {
+		args[3+i] = key
+	}
+	cmd := NewIntCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) BitOpAnd(ctx context.Context, destKey string, keys ...string) *IntCmd {
+	return c.bitOp(ctx, "and", destKey, keys...)
+}
+
+func (c cmdable) BitOpOr(ctx context.Context, destKey string, keys ...string) *IntCmd {
+	return c.bitOp(ctx, "or", destKey, keys...)
+}
+
+func (c cmdable) BitOpXor(ctx context.Context, destKey string, keys ...string) *IntCmd {
+	return c.bitOp(ctx, "xor", destKey, keys...)
+}
+
+func (c cmdable) BitOpNot(ctx context.Context, destKey string, key string) *IntCmd {
+	return c.bitOp(ctx, "not", destKey, key)
+}
+
+func (c cmdable) BitPos(ctx context.Context, key string, bit int64, pos ...int64) *IntCmd {
+	args := make([]interface{}, 3+len(pos))
+	args[0] = "bitpos"
+	args[1] = key
+	args[2] = bit
+	switch len(pos) {
+	case 0:
+	case 1:
+		args[3] = pos[0]
+	case 2:
+		args[3] = pos[0]
+		args[4] = pos[1]
+	default:
+		panic("too many arguments")
+	}
+	cmd := NewIntCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) BitField(ctx context.Context, key string, args ...interface{}) *IntSliceCmd {
+	a := make([]interface{}, 0, 2+len(args))
+	a = append(a, "bitfield")
+	a = append(a, key)
+	a = append(a, args...)
+	cmd := NewIntSliceCmd(ctx, a...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+//------------------------------------------------------------------------------
+
+func (c cmdable) Scan(ctx context.Context, cursor uint64, match string, count int64) *ScanCmd {
+	args := []interface{}{"scan", cursor}
+	if match != "" {
+		args = append(args, "match", match)
+	}
+	if count > 0 {
+		args = append(args, "count", count)
+	}
+	cmd := NewScanCmd(ctx, c, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ScanType(ctx context.Context, cursor uint64, match string, count int64, keyType string) *ScanCmd {
+	args := []interface{}{"scan", cursor}
+	if match != "" {
+		args = append(args, "match", match)
+	}
+	if count > 0 {
+		args = append(args, "count", count)
+	}
+	if keyType != "" {
+		args = append(args, "type", keyType)
+	}
+	cmd := NewScanCmd(ctx, c, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) SScan(ctx context.Context, key string, cursor uint64, match string, count int64) *ScanCmd {
+	args := []interface{}{"sscan", key, cursor}
+	if match != "" {
+		args = append(args, "match", match)
+	}
+	if count > 0 {
+		args = append(args, "count", count)
+	}
+	cmd := NewScanCmd(ctx, c, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) HScan(ctx context.Context, key string, cursor uint64, match string, count int64) *ScanCmd {
+	args := []interface{}{"hscan", key, cursor}
+	if match != "" {
+		args = append(args, "match", match)
+	}
+	if count > 0 {
+		args = append(args, "count", count)
+	}
+	cmd := NewScanCmd(ctx, c, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ZScan(ctx context.Context, key string, cursor uint64, match string, count int64) *ScanCmd {
+	args := []interface{}{"zscan", key, cursor}
+	if match != "" {
+		args = append(args, "match", match)
+	}
+	if count > 0 {
+		args = append(args, "count", count)
+	}
+	cmd := NewScanCmd(ctx, c, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+//------------------------------------------------------------------------------
+
+func (c cmdable) HDel(ctx context.Context, key string, fields ...string) *IntCmd {
+	args := make([]interface{}, 2+len(fields))
+	args[0] = "hdel"
+	args[1] = key
+	for i, field := range fields {
+		args[2+i] = field
+	}
+	cmd := NewIntCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) HExists(ctx context.Context, key, field string) *BoolCmd {
+	cmd := NewBoolCmd(ctx, "hexists", key, field)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) HGet(ctx context.Context, key, field string) *StringCmd {
+	cmd := NewStringCmd(ctx, "hget", key, field)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) HGetAll(ctx context.Context, key string) *StringStringMapCmd {
+	cmd := NewStringStringMapCmd(ctx, "hgetall", key)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) HIncrBy(ctx context.Context, key, field string, incr int64) *IntCmd {
+	cmd := NewIntCmd(ctx, "hincrby", key, field, incr)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) HIncrByFloat(ctx context.Context, key, field string, incr float64) *FloatCmd {
+	cmd := NewFloatCmd(ctx, "hincrbyfloat", key, field, incr)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) HKeys(ctx context.Context, key string) *StringSliceCmd {
+	cmd := NewStringSliceCmd(ctx, "hkeys", key)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) HLen(ctx context.Context, key string) *IntCmd {
+	cmd := NewIntCmd(ctx, "hlen", key)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+// HMGet returns the values for the specified fields in the hash stored at key.
+// It returns an interface{} to distinguish between empty string and nil value.
+func (c cmdable) HMGet(ctx context.Context, key string, fields ...string) *SliceCmd {
+	args := make([]interface{}, 2+len(fields))
+	args[0] = "hmget"
+	args[1] = key
+	for i, field := range fields {
+		args[2+i] = field
+	}
+	cmd := NewSliceCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+// HSet accepts values in following formats:
+//   - HSet("myhash", "key1", "value1", "key2", "value2")
+//   - HSet("myhash", []string{"key1", "value1", "key2", "value2"})
+//   - HSet("myhash", map[string]interface{}{"key1": "value1", "key2": "value2"})
+//
+// Note that it requires Redis v4 for multiple field/value pairs support.
+func (c cmdable) HSet(ctx context.Context, key string, values ...interface{}) *IntCmd {
+	args := make([]interface{}, 2, 2+len(values))
+	args[0] = "hset"
+	args[1] = key
+	args = appendArgs(args, values)
+	cmd := NewIntCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+// HMSet is a deprecated version of HSet left for compatibility with Redis 3.
+func (c cmdable) HMSet(ctx context.Context, key string, values ...interface{}) *BoolCmd {
+	args := make([]interface{}, 2, 2+len(values))
+	args[0] = "hmset"
+	args[1] = key
+	args = appendArgs(args, values)
+	cmd := NewBoolCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) HSetNX(ctx context.Context, key, field string, value interface{}) *BoolCmd {
+	cmd := NewBoolCmd(ctx, "hsetnx", key, field, value)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) HVals(ctx context.Context, key string) *StringSliceCmd {
+	cmd := NewStringSliceCmd(ctx, "hvals", key)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+//------------------------------------------------------------------------------
+
+func (c cmdable) BLPop(ctx context.Context, timeout time.Duration, keys ...string) *StringSliceCmd {
+	args := make([]interface{}, 1+len(keys)+1)
+	args[0] = "blpop"
+	for i, key := range keys {
+		args[1+i] = key
+	}
+	args[len(args)-1] = formatSec(ctx, timeout)
+	cmd := NewStringSliceCmd(ctx, args...)
+	cmd.setReadTimeout(timeout)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) BRPop(ctx context.Context, timeout time.Duration, keys ...string) *StringSliceCmd {
+	args := make([]interface{}, 1+len(keys)+1)
+	args[0] = "brpop"
+	for i, key := range keys {
+		args[1+i] = key
+	}
+	args[len(keys)+1] = formatSec(ctx, timeout)
+	cmd := NewStringSliceCmd(ctx, args...)
+	cmd.setReadTimeout(timeout)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) BRPopLPush(ctx context.Context, source, destination string, timeout time.Duration) *StringCmd {
+	cmd := NewStringCmd(
+		ctx,
+		"brpoplpush",
+		source,
+		destination,
+		formatSec(ctx, timeout),
+	)
+	cmd.setReadTimeout(timeout)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) LIndex(ctx context.Context, key string, index int64) *StringCmd {
+	cmd := NewStringCmd(ctx, "lindex", key, index)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) LInsert(ctx context.Context, key, op string, pivot, value interface{}) *IntCmd {
+	cmd := NewIntCmd(ctx, "linsert", key, op, pivot, value)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) LInsertBefore(ctx context.Context, key string, pivot, value interface{}) *IntCmd {
+	cmd := NewIntCmd(ctx, "linsert", key, "before", pivot, value)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) LInsertAfter(ctx context.Context, key string, pivot, value interface{}) *IntCmd {
+	cmd := NewIntCmd(ctx, "linsert", key, "after", pivot, value)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) LLen(ctx context.Context, key string) *IntCmd {
+	cmd := NewIntCmd(ctx, "llen", key)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) LPop(ctx context.Context, key string) *StringCmd {
+	cmd := NewStringCmd(ctx, "lpop", key)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+type LPosArgs struct {
+	Rank, MaxLen int64
+}
+
+func (c cmdable) LPos(ctx context.Context, key string, value string, a LPosArgs) *IntCmd {
+	args := []interface{}{"lpos", key, value}
+	if a.Rank != 0 {
+		args = append(args, "rank", a.Rank)
+	}
+	if a.MaxLen != 0 {
+		args = append(args, "maxlen", a.MaxLen)
+	}
+
+	cmd := NewIntCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) LPosCount(ctx context.Context, key string, value string, count int64, a LPosArgs) *IntSliceCmd {
+	args := []interface{}{"lpos", key, value, "count", count}
+	if a.Rank != 0 {
+		args = append(args, "rank", a.Rank)
+	}
+	if a.MaxLen != 0 {
+		args = append(args, "maxlen", a.MaxLen)
+	}
+	cmd := NewIntSliceCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) LPush(ctx context.Context, key string, values ...interface{}) *IntCmd {
+	args := make([]interface{}, 2, 2+len(values))
+	args[0] = "lpush"
+	args[1] = key
+	args = appendArgs(args, values)
+	cmd := NewIntCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) LPushX(ctx context.Context, key string, values ...interface{}) *IntCmd {
+	args := make([]interface{}, 2, 2+len(values))
+	args[0] = "lpushx"
+	args[1] = key
+	args = appendArgs(args, values)
+	cmd := NewIntCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) LRange(ctx context.Context, key string, start, stop int64) *StringSliceCmd {
+	cmd := NewStringSliceCmd(
+		ctx,
+		"lrange",
+		key,
+		start,
+		stop,
+	)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) LRem(ctx context.Context, key string, count int64, value interface{}) *IntCmd {
+	cmd := NewIntCmd(ctx, "lrem", key, count, value)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) LSet(ctx context.Context, key string, index int64, value interface{}) *StatusCmd {
+	cmd := NewStatusCmd(ctx, "lset", key, index, value)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) LTrim(ctx context.Context, key string, start, stop int64) *StatusCmd {
+	cmd := NewStatusCmd(
+		ctx,
+		"ltrim",
+		key,
+		start,
+		stop,
+	)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) RPop(ctx context.Context, key string) *StringCmd {
+	cmd := NewStringCmd(ctx, "rpop", key)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) RPopLPush(ctx context.Context, source, destination string) *StringCmd {
+	cmd := NewStringCmd(ctx, "rpoplpush", source, destination)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) RPush(ctx context.Context, key string, values ...interface{}) *IntCmd {
+	args := make([]interface{}, 2, 2+len(values))
+	args[0] = "rpush"
+	args[1] = key
+	args = appendArgs(args, values)
+	cmd := NewIntCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) RPushX(ctx context.Context, key string, values ...interface{}) *IntCmd {
+	args := make([]interface{}, 2, 2+len(values))
+	args[0] = "rpushx"
+	args[1] = key
+	args = appendArgs(args, values)
+	cmd := NewIntCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+//------------------------------------------------------------------------------
+
+func (c cmdable) SAdd(ctx context.Context, key string, members ...interface{}) *IntCmd {
+	args := make([]interface{}, 2, 2+len(members))
+	args[0] = "sadd"
+	args[1] = key
+	args = appendArgs(args, members)
+	cmd := NewIntCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) SCard(ctx context.Context, key string) *IntCmd {
+	cmd := NewIntCmd(ctx, "scard", key)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) SDiff(ctx context.Context, keys ...string) *StringSliceCmd {
+	args := make([]interface{}, 1+len(keys))
+	args[0] = "sdiff"
+	for i, key := range keys {
+		args[1+i] = key
+	}
+	cmd := NewStringSliceCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) SDiffStore(ctx context.Context, destination string, keys ...string) *IntCmd {
+	args := make([]interface{}, 2+len(keys))
+	args[0] = "sdiffstore"
+	args[1] = destination
+	for i, key := range keys {
+		args[2+i] = key
+	}
+	cmd := NewIntCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) SInter(ctx context.Context, keys ...string) *StringSliceCmd {
+	args := make([]interface{}, 1+len(keys))
+	args[0] = "sinter"
+	for i, key := range keys {
+		args[1+i] = key
+	}
+	cmd := NewStringSliceCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) SInterStore(ctx context.Context, destination string, keys ...string) *IntCmd {
+	args := make([]interface{}, 2+len(keys))
+	args[0] = "sinterstore"
+	args[1] = destination
+	for i, key := range keys {
+		args[2+i] = key
+	}
+	cmd := NewIntCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) SIsMember(ctx context.Context, key string, member interface{}) *BoolCmd {
+	cmd := NewBoolCmd(ctx, "sismember", key, member)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+// Redis `SMEMBERS key` command output as a slice.
+func (c cmdable) SMembers(ctx context.Context, key string) *StringSliceCmd {
+	cmd := NewStringSliceCmd(ctx, "smembers", key)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+// Redis `SMEMBERS key` command output as a map.
+func (c cmdable) SMembersMap(ctx context.Context, key string) *StringStructMapCmd {
+	cmd := NewStringStructMapCmd(ctx, "smembers", key)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) SMove(ctx context.Context, source, destination string, member interface{}) *BoolCmd {
+	cmd := NewBoolCmd(ctx, "smove", source, destination, member)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+// Redis `SPOP key` command.
+func (c cmdable) SPop(ctx context.Context, key string) *StringCmd {
+	cmd := NewStringCmd(ctx, "spop", key)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+// Redis `SPOP key count` command.
+func (c cmdable) SPopN(ctx context.Context, key string, count int64) *StringSliceCmd {
+	cmd := NewStringSliceCmd(ctx, "spop", key, count)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+// Redis `SRANDMEMBER key` command.
+func (c cmdable) SRandMember(ctx context.Context, key string) *StringCmd {
+	cmd := NewStringCmd(ctx, "srandmember", key)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+// Redis `SRANDMEMBER key count` command.
+func (c cmdable) SRandMemberN(ctx context.Context, key string, count int64) *StringSliceCmd {
+	cmd := NewStringSliceCmd(ctx, "srandmember", key, count)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) SRem(ctx context.Context, key string, members ...interface{}) *IntCmd {
+	args := make([]interface{}, 2, 2+len(members))
+	args[0] = "srem"
+	args[1] = key
+	args = appendArgs(args, members)
+	cmd := NewIntCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) SUnion(ctx context.Context, keys ...string) *StringSliceCmd {
+	args := make([]interface{}, 1+len(keys))
+	args[0] = "sunion"
+	for i, key := range keys {
+		args[1+i] = key
+	}
+	cmd := NewStringSliceCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) SUnionStore(ctx context.Context, destination string, keys ...string) *IntCmd {
+	args := make([]interface{}, 2+len(keys))
+	args[0] = "sunionstore"
+	args[1] = destination
+	for i, key := range keys {
+		args[2+i] = key
+	}
+	cmd := NewIntCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+//------------------------------------------------------------------------------
+
+// XAddArgs accepts values in the following formats:
+//   - XAddArgs.Values = []interface{}{"key1", "value1", "key2", "value2"}
+//   - XAddArgs.Values = []string("key1", "value1", "key2", "value2")
+//   - XAddArgs.Values = map[string]interface{}{"key1": "value1", "key2": "value2"}
+//
+// Note that map will not preserve the order of key-value pairs.
+type XAddArgs struct {
+	Stream       string
+	MaxLen       int64 // MAXLEN N
+	MaxLenApprox int64 // MAXLEN ~ N
+	ID           string
+	Values       interface{}
+}
+
+func (c cmdable) XAdd(ctx context.Context, a *XAddArgs) *StringCmd {
+	args := make([]interface{}, 0, 8)
+	args = append(args, "xadd")
+	args = append(args, a.Stream)
+	if a.MaxLen > 0 {
+		args = append(args, "maxlen", a.MaxLen)
+	} else if a.MaxLenApprox > 0 {
+		args = append(args, "maxlen", "~", a.MaxLenApprox)
+	}
+	if a.ID != "" {
+		args = append(args, a.ID)
+	} else {
+		args = append(args, "*")
+	}
+	args = appendArg(args, a.Values)
+
+	cmd := NewStringCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) XDel(ctx context.Context, stream string, ids ...string) *IntCmd {
+	args := []interface{}{"xdel", stream}
+	for _, id := range ids {
+		args = append(args, id)
+	}
+	cmd := NewIntCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) XLen(ctx context.Context, stream string) *IntCmd {
+	cmd := NewIntCmd(ctx, "xlen", stream)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) XRange(ctx context.Context, stream, start, stop string) *XMessageSliceCmd {
+	cmd := NewXMessageSliceCmd(ctx, "xrange", stream, start, stop)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) XRangeN(ctx context.Context, stream, start, stop string, count int64) *XMessageSliceCmd {
+	cmd := NewXMessageSliceCmd(ctx, "xrange", stream, start, stop, "count", count)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) XRevRange(ctx context.Context, stream, start, stop string) *XMessageSliceCmd {
+	cmd := NewXMessageSliceCmd(ctx, "xrevrange", stream, start, stop)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) XRevRangeN(ctx context.Context, stream, start, stop string, count int64) *XMessageSliceCmd {
+	cmd := NewXMessageSliceCmd(ctx, "xrevrange", stream, start, stop, "count", count)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+type XReadArgs struct {
+	Streams []string // list of streams and ids, e.g. stream1 stream2 id1 id2
+	Count   int64
+	Block   time.Duration
+}
+
+func (c cmdable) XRead(ctx context.Context, a *XReadArgs) *XStreamSliceCmd {
+	args := make([]interface{}, 0, 5+len(a.Streams))
+	args = append(args, "xread")
+
+	keyPos := int8(1)
+	if a.Count > 0 {
+		args = append(args, "count")
+		args = append(args, a.Count)
+		keyPos += 2
+	}
+	if a.Block >= 0 {
+		args = append(args, "block")
+		args = append(args, int64(a.Block/time.Millisecond))
+		keyPos += 2
+	}
+	args = append(args, "streams")
+	keyPos++
+	for _, s := range a.Streams {
+		args = append(args, s)
+	}
+
+	cmd := NewXStreamSliceCmd(ctx, args...)
+	if a.Block >= 0 {
+		cmd.setReadTimeout(a.Block)
+	}
+	cmd.setFirstKeyPos(keyPos)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) XReadStreams(ctx context.Context, streams ...string) *XStreamSliceCmd {
+	return c.XRead(ctx, &XReadArgs{
+		Streams: streams,
+		Block:   -1,
+	})
+}
+
+func (c cmdable) XGroupCreate(ctx context.Context, stream, group, start string) *StatusCmd {
+	cmd := NewStatusCmd(ctx, "xgroup", "create", stream, group, start)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) XGroupCreateMkStream(ctx context.Context, stream, group, start string) *StatusCmd {
+	cmd := NewStatusCmd(ctx, "xgroup", "create", stream, group, start, "mkstream")
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) XGroupSetID(ctx context.Context, stream, group, start string) *StatusCmd {
+	cmd := NewStatusCmd(ctx, "xgroup", "setid", stream, group, start)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) XGroupDestroy(ctx context.Context, stream, group string) *IntCmd {
+	cmd := NewIntCmd(ctx, "xgroup", "destroy", stream, group)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) XGroupDelConsumer(ctx context.Context, stream, group, consumer string) *IntCmd {
+	cmd := NewIntCmd(ctx, "xgroup", "delconsumer", stream, group, consumer)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+type XReadGroupArgs struct {
+	Group    string
+	Consumer string
+	Streams  []string // list of streams and ids, e.g. stream1 stream2 id1 id2
+	Count    int64
+	Block    time.Duration
+	NoAck    bool
+}
+
+func (c cmdable) XReadGroup(ctx context.Context, a *XReadGroupArgs) *XStreamSliceCmd {
+	args := make([]interface{}, 0, 8+len(a.Streams))
+	args = append(args, "xreadgroup", "group", a.Group, a.Consumer)
+
+	keyPos := int8(1)
+	if a.Count > 0 {
+		args = append(args, "count", a.Count)
+		keyPos += 2
+	}
+	if a.Block >= 0 {
+		args = append(args, "block", int64(a.Block/time.Millisecond))
+		keyPos += 2
+	}
+	if a.NoAck {
+		args = append(args, "noack")
+		keyPos++
+	}
+	args = append(args, "streams")
+	keyPos++
+	for _, s := range a.Streams {
+		args = append(args, s)
+	}
+
+	cmd := NewXStreamSliceCmd(ctx, args...)
+	if a.Block >= 0 {
+		cmd.setReadTimeout(a.Block)
+	}
+	cmd.setFirstKeyPos(keyPos)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) XAck(ctx context.Context, stream, group string, ids ...string) *IntCmd {
+	args := []interface{}{"xack", stream, group}
+	for _, id := range ids {
+		args = append(args, id)
+	}
+	cmd := NewIntCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) XPending(ctx context.Context, stream, group string) *XPendingCmd {
+	cmd := NewXPendingCmd(ctx, "xpending", stream, group)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+type XPendingExtArgs struct {
+	Stream   string
+	Group    string
+	Start    string
+	End      string
+	Count    int64
+	Consumer string
+}
+
+func (c cmdable) XPendingExt(ctx context.Context, a *XPendingExtArgs) *XPendingExtCmd {
+	args := make([]interface{}, 0, 7)
+	args = append(args, "xpending", a.Stream, a.Group, a.Start, a.End, a.Count)
+	if a.Consumer != "" {
+		args = append(args, a.Consumer)
+	}
+	cmd := NewXPendingExtCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+type XClaimArgs struct {
+	Stream   string
+	Group    string
+	Consumer string
+	MinIdle  time.Duration
+	Messages []string
+}
+
+func (c cmdable) XClaim(ctx context.Context, a *XClaimArgs) *XMessageSliceCmd {
+	args := xClaimArgs(a)
+	cmd := NewXMessageSliceCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) XClaimJustID(ctx context.Context, a *XClaimArgs) *StringSliceCmd {
+	args := xClaimArgs(a)
+	args = append(args, "justid")
+	cmd := NewStringSliceCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func xClaimArgs(a *XClaimArgs) []interface{} {
+	args := make([]interface{}, 0, 4+len(a.Messages))
+	args = append(args,
+		"xclaim",
+		a.Stream,
+		a.Group, a.Consumer,
+		int64(a.MinIdle/time.Millisecond))
+	for _, id := range a.Messages {
+		args = append(args, id)
+	}
+	return args
+}
+
+func (c cmdable) XTrim(ctx context.Context, key string, maxLen int64) *IntCmd {
+	cmd := NewIntCmd(ctx, "xtrim", key, "maxlen", maxLen)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) XTrimApprox(ctx context.Context, key string, maxLen int64) *IntCmd {
+	cmd := NewIntCmd(ctx, "xtrim", key, "maxlen", "~", maxLen)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) XInfoGroups(ctx context.Context, key string) *XInfoGroupsCmd {
+	cmd := NewXInfoGroupsCmd(ctx, key)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) XInfoStream(ctx context.Context, key string) *XInfoStreamCmd {
+	cmd := NewXInfoStreamCmd(ctx, key)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+//------------------------------------------------------------------------------
+
+// Z represents sorted set member.
+type Z struct {
+	Score  float64
+	Member interface{}
+}
+
+// ZWithKey represents sorted set member including the name of the key where it was popped.
+type ZWithKey struct {
+	Z
+	Key string
+}
+
+// ZStore is used as an arg to ZInterStore and ZUnionStore.
+type ZStore struct {
+	Keys    []string
+	Weights []float64
+	// Can be SUM, MIN or MAX.
+	Aggregate string
+}
+
+// Redis `BZPOPMAX key [key ...] timeout` command.
+func (c cmdable) BZPopMax(ctx context.Context, timeout time.Duration, keys ...string) *ZWithKeyCmd {
+	args := make([]interface{}, 1+len(keys)+1)
+	args[0] = "bzpopmax"
+	for i, key := range keys {
+		args[1+i] = key
+	}
+	args[len(args)-1] = formatSec(ctx, timeout)
+	cmd := NewZWithKeyCmd(ctx, args...)
+	cmd.setReadTimeout(timeout)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+// Redis `BZPOPMIN key [key ...] timeout` command.
+func (c cmdable) BZPopMin(ctx context.Context, timeout time.Duration, keys ...string) *ZWithKeyCmd {
+	args := make([]interface{}, 1+len(keys)+1)
+	args[0] = "bzpopmin"
+	for i, key := range keys {
+		args[1+i] = key
+	}
+	args[len(args)-1] = formatSec(ctx, timeout)
+	cmd := NewZWithKeyCmd(ctx, args...)
+	cmd.setReadTimeout(timeout)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) zAdd(ctx context.Context, a []interface{}, n int, members ...*Z) *IntCmd {
+	for i, m := range members {
+		a[n+2*i] = m.Score
+		a[n+2*i+1] = m.Member
+	}
+	cmd := NewIntCmd(ctx, a...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+// Redis `ZADD key score member [score member ...]` command.
+func (c cmdable) ZAdd(ctx context.Context, key string, members ...*Z) *IntCmd {
+	const n = 2
+	a := make([]interface{}, n+2*len(members))
+	a[0], a[1] = "zadd", key
+	return c.zAdd(ctx, a, n, members...)
+}
+
+// Redis `ZADD key NX score member [score member ...]` command.
+func (c cmdable) ZAddNX(ctx context.Context, key string, members ...*Z) *IntCmd {
+	const n = 3
+	a := make([]interface{}, n+2*len(members))
+	a[0], a[1], a[2] = "zadd", key, "nx"
+	return c.zAdd(ctx, a, n, members...)
+}
+
+// Redis `ZADD key XX score member [score member ...]` command.
+func (c cmdable) ZAddXX(ctx context.Context, key string, members ...*Z) *IntCmd {
+	const n = 3
+	a := make([]interface{}, n+2*len(members))
+	a[0], a[1], a[2] = "zadd", key, "xx"
+	return c.zAdd(ctx, a, n, members...)
+}
+
+// Redis `ZADD key CH score member [score member ...]` command.
+func (c cmdable) ZAddCh(ctx context.Context, key string, members ...*Z) *IntCmd {
+	const n = 3
+	a := make([]interface{}, n+2*len(members))
+	a[0], a[1], a[2] = "zadd", key, "ch"
+	return c.zAdd(ctx, a, n, members...)
+}
+
+// Redis `ZADD key NX CH score member [score member ...]` command.
+func (c cmdable) ZAddNXCh(ctx context.Context, key string, members ...*Z) *IntCmd {
+	const n = 4
+	a := make([]interface{}, n+2*len(members))
+	a[0], a[1], a[2], a[3] = "zadd", key, "nx", "ch"
+	return c.zAdd(ctx, a, n, members...)
+}
+
+// Redis `ZADD key XX CH score member [score member ...]` command.
+func (c cmdable) ZAddXXCh(ctx context.Context, key string, members ...*Z) *IntCmd {
+	const n = 4
+	a := make([]interface{}, n+2*len(members))
+	a[0], a[1], a[2], a[3] = "zadd", key, "xx", "ch"
+	return c.zAdd(ctx, a, n, members...)
+}
+
+func (c cmdable) zIncr(ctx context.Context, a []interface{}, n int, members ...*Z) *FloatCmd {
+	for i, m := range members {
+		a[n+2*i] = m.Score
+		a[n+2*i+1] = m.Member
+	}
+	cmd := NewFloatCmd(ctx, a...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+// Redis `ZADD key INCR score member` command.
+func (c cmdable) ZIncr(ctx context.Context, key string, member *Z) *FloatCmd {
+	const n = 3
+	a := make([]interface{}, n+2)
+	a[0], a[1], a[2] = "zadd", key, "incr"
+	return c.zIncr(ctx, a, n, member)
+}
+
+// Redis `ZADD key NX INCR score member` command.
+func (c cmdable) ZIncrNX(ctx context.Context, key string, member *Z) *FloatCmd {
+	const n = 4
+	a := make([]interface{}, n+2)
+	a[0], a[1], a[2], a[3] = "zadd", key, "incr", "nx"
+	return c.zIncr(ctx, a, n, member)
+}
+
+// Redis `ZADD key XX INCR score member` command.
+func (c cmdable) ZIncrXX(ctx context.Context, key string, member *Z) *FloatCmd {
+	const n = 4
+	a := make([]interface{}, n+2)
+	a[0], a[1], a[2], a[3] = "zadd", key, "incr", "xx"
+	return c.zIncr(ctx, a, n, member)
+}
+
+func (c cmdable) ZCard(ctx context.Context, key string) *IntCmd {
+	cmd := NewIntCmd(ctx, "zcard", key)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ZCount(ctx context.Context, key, min, max string) *IntCmd {
+	cmd := NewIntCmd(ctx, "zcount", key, min, max)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ZLexCount(ctx context.Context, key, min, max string) *IntCmd {
+	cmd := NewIntCmd(ctx, "zlexcount", key, min, max)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ZIncrBy(ctx context.Context, key string, increment float64, member string) *FloatCmd {
+	cmd := NewFloatCmd(ctx, "zincrby", key, increment, member)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ZInterStore(ctx context.Context, destination string, store *ZStore) *IntCmd {
+	args := make([]interface{}, 3+len(store.Keys))
+	args[0] = "zinterstore"
+	args[1] = destination
+	args[2] = len(store.Keys)
+	for i, key := range store.Keys {
+		args[3+i] = key
+	}
+	if len(store.Weights) > 0 {
+		args = append(args, "weights")
+		for _, weight := range store.Weights {
+			args = append(args, weight)
+		}
+	}
+	if store.Aggregate != "" {
+		args = append(args, "aggregate", store.Aggregate)
+	}
+	cmd := NewIntCmd(ctx, args...)
+	cmd.setFirstKeyPos(3)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ZPopMax(ctx context.Context, key string, count ...int64) *ZSliceCmd {
+	args := []interface{}{
+		"zpopmax",
+		key,
+	}
+
+	switch len(count) {
+	case 0:
+		break
+	case 1:
+		args = append(args, count[0])
+	default:
+		panic("too many arguments")
+	}
+
+	cmd := NewZSliceCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ZPopMin(ctx context.Context, key string, count ...int64) *ZSliceCmd {
+	args := []interface{}{
+		"zpopmin",
+		key,
+	}
+
+	switch len(count) {
+	case 0:
+		break
+	case 1:
+		args = append(args, count[0])
+	default:
+		panic("too many arguments")
+	}
+
+	cmd := NewZSliceCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) zRange(ctx context.Context, key string, start, stop int64, withScores bool) *StringSliceCmd {
+	args := []interface{}{
+		"zrange",
+		key,
+		start,
+		stop,
+	}
+	if withScores {
+		args = append(args, "withscores")
+	}
+	cmd := NewStringSliceCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ZRange(ctx context.Context, key string, start, stop int64) *StringSliceCmd {
+	return c.zRange(ctx, key, start, stop, false)
+}
+
+func (c cmdable) ZRangeWithScores(ctx context.Context, key string, start, stop int64) *ZSliceCmd {
+	cmd := NewZSliceCmd(ctx, "zrange", key, start, stop, "withscores")
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+type ZRangeBy struct {
+	Min, Max      string
+	Offset, Count int64
+}
+
+func (c cmdable) zRangeBy(ctx context.Context, zcmd, key string, opt *ZRangeBy, withScores bool) *StringSliceCmd {
+	args := []interface{}{zcmd, key, opt.Min, opt.Max}
+	if withScores {
+		args = append(args, "withscores")
+	}
+	if opt.Offset != 0 || opt.Count != 0 {
+		args = append(
+			args,
+			"limit",
+			opt.Offset,
+			opt.Count,
+		)
+	}
+	cmd := NewStringSliceCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ZRangeByScore(ctx context.Context, key string, opt *ZRangeBy) *StringSliceCmd {
+	return c.zRangeBy(ctx, "zrangebyscore", key, opt, false)
+}
+
+func (c cmdable) ZRangeByLex(ctx context.Context, key string, opt *ZRangeBy) *StringSliceCmd {
+	return c.zRangeBy(ctx, "zrangebylex", key, opt, false)
+}
+
+func (c cmdable) ZRangeByScoreWithScores(ctx context.Context, key string, opt *ZRangeBy) *ZSliceCmd {
+	args := []interface{}{"zrangebyscore", key, opt.Min, opt.Max, "withscores"}
+	if opt.Offset != 0 || opt.Count != 0 {
+		args = append(
+			args,
+			"limit",
+			opt.Offset,
+			opt.Count,
+		)
+	}
+	cmd := NewZSliceCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ZRank(ctx context.Context, key, member string) *IntCmd {
+	cmd := NewIntCmd(ctx, "zrank", key, member)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ZRem(ctx context.Context, key string, members ...interface{}) *IntCmd {
+	args := make([]interface{}, 2, 2+len(members))
+	args[0] = "zrem"
+	args[1] = key
+	args = appendArgs(args, members)
+	cmd := NewIntCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ZRemRangeByRank(ctx context.Context, key string, start, stop int64) *IntCmd {
+	cmd := NewIntCmd(
+		ctx,
+		"zremrangebyrank",
+		key,
+		start,
+		stop,
+	)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ZRemRangeByScore(ctx context.Context, key, min, max string) *IntCmd {
+	cmd := NewIntCmd(ctx, "zremrangebyscore", key, min, max)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ZRemRangeByLex(ctx context.Context, key, min, max string) *IntCmd {
+	cmd := NewIntCmd(ctx, "zremrangebylex", key, min, max)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ZRevRange(ctx context.Context, key string, start, stop int64) *StringSliceCmd {
+	cmd := NewStringSliceCmd(ctx, "zrevrange", key, start, stop)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ZRevRangeWithScores(ctx context.Context, key string, start, stop int64) *ZSliceCmd {
+	cmd := NewZSliceCmd(ctx, "zrevrange", key, start, stop, "withscores")
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) zRevRangeBy(ctx context.Context, zcmd, key string, opt *ZRangeBy) *StringSliceCmd {
+	args := []interface{}{zcmd, key, opt.Max, opt.Min}
+	if opt.Offset != 0 || opt.Count != 0 {
+		args = append(
+			args,
+			"limit",
+			opt.Offset,
+			opt.Count,
+		)
+	}
+	cmd := NewStringSliceCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ZRevRangeByScore(ctx context.Context, key string, opt *ZRangeBy) *StringSliceCmd {
+	return c.zRevRangeBy(ctx, "zrevrangebyscore", key, opt)
+}
+
+func (c cmdable) ZRevRangeByLex(ctx context.Context, key string, opt *ZRangeBy) *StringSliceCmd {
+	return c.zRevRangeBy(ctx, "zrevrangebylex", key, opt)
+}
+
+func (c cmdable) ZRevRangeByScoreWithScores(ctx context.Context, key string, opt *ZRangeBy) *ZSliceCmd {
+	args := []interface{}{"zrevrangebyscore", key, opt.Max, opt.Min, "withscores"}
+	if opt.Offset != 0 || opt.Count != 0 {
+		args = append(
+			args,
+			"limit",
+			opt.Offset,
+			opt.Count,
+		)
+	}
+	cmd := NewZSliceCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ZRevRank(ctx context.Context, key, member string) *IntCmd {
+	cmd := NewIntCmd(ctx, "zrevrank", key, member)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ZScore(ctx context.Context, key, member string) *FloatCmd {
+	cmd := NewFloatCmd(ctx, "zscore", key, member)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ZUnionStore(ctx context.Context, dest string, store *ZStore) *IntCmd {
+	args := make([]interface{}, 3+len(store.Keys))
+	args[0] = "zunionstore"
+	args[1] = dest
+	args[2] = len(store.Keys)
+	for i, key := range store.Keys {
+		args[3+i] = key
+	}
+	if len(store.Weights) > 0 {
+		args = append(args, "weights")
+		for _, weight := range store.Weights {
+			args = append(args, weight)
+		}
+	}
+	if store.Aggregate != "" {
+		args = append(args, "aggregate", store.Aggregate)
+	}
+
+	cmd := NewIntCmd(ctx, args...)
+	cmd.setFirstKeyPos(3)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+//------------------------------------------------------------------------------
+
+func (c cmdable) PFAdd(ctx context.Context, key string, els ...interface{}) *IntCmd {
+	args := make([]interface{}, 2, 2+len(els))
+	args[0] = "pfadd"
+	args[1] = key
+	args = appendArgs(args, els)
+	cmd := NewIntCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) PFCount(ctx context.Context, keys ...string) *IntCmd {
+	args := make([]interface{}, 1+len(keys))
+	args[0] = "pfcount"
+	for i, key := range keys {
+		args[1+i] = key
+	}
+	cmd := NewIntCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) PFMerge(ctx context.Context, dest string, keys ...string) *StatusCmd {
+	args := make([]interface{}, 2+len(keys))
+	args[0] = "pfmerge"
+	args[1] = dest
+	for i, key := range keys {
+		args[2+i] = key
+	}
+	cmd := NewStatusCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+//------------------------------------------------------------------------------
+
+func (c cmdable) BgRewriteAOF(ctx context.Context) *StatusCmd {
+	cmd := NewStatusCmd(ctx, "bgrewriteaof")
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) BgSave(ctx context.Context) *StatusCmd {
+	cmd := NewStatusCmd(ctx, "bgsave")
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ClientKill(ctx context.Context, ipPort string) *StatusCmd {
+	cmd := NewStatusCmd(ctx, "client", "kill", ipPort)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+// ClientKillByFilter is new style syntax, while the ClientKill is old
+//
+//   CLIENT KILL <option> [value] ... <option> [value]
+func (c cmdable) ClientKillByFilter(ctx context.Context, keys ...string) *IntCmd {
+	args := make([]interface{}, 2+len(keys))
+	args[0] = "client"
+	args[1] = "kill"
+	for i, key := range keys {
+		args[2+i] = key
+	}
+	cmd := NewIntCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ClientList(ctx context.Context) *StringCmd {
+	cmd := NewStringCmd(ctx, "client", "list")
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ClientPause(ctx context.Context, dur time.Duration) *BoolCmd {
+	cmd := NewBoolCmd(ctx, "client", "pause", formatMs(ctx, dur))
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ClientID(ctx context.Context) *IntCmd {
+	cmd := NewIntCmd(ctx, "client", "id")
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ClientUnblock(ctx context.Context, id int64) *IntCmd {
+	cmd := NewIntCmd(ctx, "client", "unblock", id)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ClientUnblockWithError(ctx context.Context, id int64) *IntCmd {
+	cmd := NewIntCmd(ctx, "client", "unblock", id, "error")
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ConfigGet(ctx context.Context, parameter string) *SliceCmd {
+	cmd := NewSliceCmd(ctx, "config", "get", parameter)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ConfigResetStat(ctx context.Context) *StatusCmd {
+	cmd := NewStatusCmd(ctx, "config", "resetstat")
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ConfigSet(ctx context.Context, parameter, value string) *StatusCmd {
+	cmd := NewStatusCmd(ctx, "config", "set", parameter, value)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ConfigRewrite(ctx context.Context) *StatusCmd {
+	cmd := NewStatusCmd(ctx, "config", "rewrite")
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) DBSize(ctx context.Context) *IntCmd {
+	cmd := NewIntCmd(ctx, "dbsize")
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) FlushAll(ctx context.Context) *StatusCmd {
+	cmd := NewStatusCmd(ctx, "flushall")
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) FlushAllAsync(ctx context.Context) *StatusCmd {
+	cmd := NewStatusCmd(ctx, "flushall", "async")
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) FlushDB(ctx context.Context) *StatusCmd {
+	cmd := NewStatusCmd(ctx, "flushdb")
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) FlushDBAsync(ctx context.Context) *StatusCmd {
+	cmd := NewStatusCmd(ctx, "flushdb", "async")
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) Info(ctx context.Context, section ...string) *StringCmd {
+	args := []interface{}{"info"}
+	if len(section) > 0 {
+		args = append(args, section[0])
+	}
+	cmd := NewStringCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) LastSave(ctx context.Context) *IntCmd {
+	cmd := NewIntCmd(ctx, "lastsave")
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) Save(ctx context.Context) *StatusCmd {
+	cmd := NewStatusCmd(ctx, "save")
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) shutdown(ctx context.Context, modifier string) *StatusCmd {
+	var args []interface{}
+	if modifier == "" {
+		args = []interface{}{"shutdown"}
+	} else {
+		args = []interface{}{"shutdown", modifier}
+	}
+	cmd := NewStatusCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	if err := cmd.Err(); err != nil {
+		if err == io.EOF {
+			// Server quit as expected.
+			cmd.err = nil
+		}
+	} else {
+		// Server did not quit. String reply contains the reason.
+		cmd.err = errors.New(cmd.val)
+		cmd.val = ""
+	}
+	return cmd
+}
+
+func (c cmdable) Shutdown(ctx context.Context) *StatusCmd {
+	return c.shutdown(ctx, "")
+}
+
+func (c cmdable) ShutdownSave(ctx context.Context) *StatusCmd {
+	return c.shutdown(ctx, "save")
+}
+
+func (c cmdable) ShutdownNoSave(ctx context.Context) *StatusCmd {
+	return c.shutdown(ctx, "nosave")
+}
+
+func (c cmdable) SlaveOf(ctx context.Context, host, port string) *StatusCmd {
+	cmd := NewStatusCmd(ctx, "slaveof", host, port)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) SlowLogGet(ctx context.Context, num int64) *SlowLogCmd {
+	cmd := NewSlowLogCmd(context.Background(), "slowlog", "get", num)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) Sync(ctx context.Context) {
+	panic("not implemented")
+}
+
+func (c cmdable) Time(ctx context.Context) *TimeCmd {
+	cmd := NewTimeCmd(ctx, "time")
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) DebugObject(ctx context.Context, key string) *StringCmd {
+	cmd := NewStringCmd(ctx, "debug", "object", key)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ReadOnly(ctx context.Context) *StatusCmd {
+	cmd := NewStatusCmd(ctx, "readonly")
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ReadWrite(ctx context.Context) *StatusCmd {
+	cmd := NewStatusCmd(ctx, "readwrite")
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) MemoryUsage(ctx context.Context, key string, samples ...int) *IntCmd {
+	args := []interface{}{"memory", "usage", key}
+	if len(samples) > 0 {
+		if len(samples) != 1 {
+			panic("MemoryUsage expects single sample count")
+		}
+		args = append(args, "SAMPLES", samples[0])
+	}
+	cmd := NewIntCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+//------------------------------------------------------------------------------
+
+func (c cmdable) Eval(ctx context.Context, script string, keys []string, args ...interface{}) *Cmd {
+	cmdArgs := make([]interface{}, 3+len(keys), 3+len(keys)+len(args))
+	cmdArgs[0] = "eval"
+	cmdArgs[1] = script
+	cmdArgs[2] = len(keys)
+	for i, key := range keys {
+		cmdArgs[3+i] = key
+	}
+	cmdArgs = appendArgs(cmdArgs, args)
+	cmd := NewCmd(ctx, cmdArgs...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) EvalSha(ctx context.Context, sha1 string, keys []string, args ...interface{}) *Cmd {
+	cmdArgs := make([]interface{}, 3+len(keys), 3+len(keys)+len(args))
+	cmdArgs[0] = "evalsha"
+	cmdArgs[1] = sha1
+	cmdArgs[2] = len(keys)
+	for i, key := range keys {
+		cmdArgs[3+i] = key
+	}
+	cmdArgs = appendArgs(cmdArgs, args)
+	cmd := NewCmd(ctx, cmdArgs...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ScriptExists(ctx context.Context, hashes ...string) *BoolSliceCmd {
+	args := make([]interface{}, 2+len(hashes))
+	args[0] = "script"
+	args[1] = "exists"
+	for i, hash := range hashes {
+		args[2+i] = hash
+	}
+	cmd := NewBoolSliceCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ScriptFlush(ctx context.Context) *StatusCmd {
+	cmd := NewStatusCmd(ctx, "script", "flush")
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ScriptKill(ctx context.Context) *StatusCmd {
+	cmd := NewStatusCmd(ctx, "script", "kill")
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ScriptLoad(ctx context.Context, script string) *StringCmd {
+	cmd := NewStringCmd(ctx, "script", "load", script)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+//------------------------------------------------------------------------------
+
+// Publish posts the message to the channel.
+func (c cmdable) Publish(ctx context.Context, channel string, message interface{}) *IntCmd {
+	cmd := NewIntCmd(ctx, "publish", channel, message)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) PubSubChannels(ctx context.Context, pattern string) *StringSliceCmd {
+	args := []interface{}{"pubsub", "channels"}
+	if pattern != "*" {
+		args = append(args, pattern)
+	}
+	cmd := NewStringSliceCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) PubSubNumSub(ctx context.Context, channels ...string) *StringIntMapCmd {
+	args := make([]interface{}, 2+len(channels))
+	args[0] = "pubsub"
+	args[1] = "numsub"
+	for i, channel := range channels {
+		args[2+i] = channel
+	}
+	cmd := NewStringIntMapCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) PubSubNumPat(ctx context.Context) *IntCmd {
+	cmd := NewIntCmd(ctx, "pubsub", "numpat")
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+//------------------------------------------------------------------------------
+
+func (c cmdable) ClusterSlots(ctx context.Context) *ClusterSlotsCmd {
+	cmd := NewClusterSlotsCmd(ctx, "cluster", "slots")
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ClusterNodes(ctx context.Context) *StringCmd {
+	cmd := NewStringCmd(ctx, "cluster", "nodes")
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ClusterMeet(ctx context.Context, host, port string) *StatusCmd {
+	cmd := NewStatusCmd(ctx, "cluster", "meet", host, port)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ClusterForget(ctx context.Context, nodeID string) *StatusCmd {
+	cmd := NewStatusCmd(ctx, "cluster", "forget", nodeID)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ClusterReplicate(ctx context.Context, nodeID string) *StatusCmd {
+	cmd := NewStatusCmd(ctx, "cluster", "replicate", nodeID)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ClusterResetSoft(ctx context.Context) *StatusCmd {
+	cmd := NewStatusCmd(ctx, "cluster", "reset", "soft")
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ClusterResetHard(ctx context.Context) *StatusCmd {
+	cmd := NewStatusCmd(ctx, "cluster", "reset", "hard")
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ClusterInfo(ctx context.Context) *StringCmd {
+	cmd := NewStringCmd(ctx, "cluster", "info")
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ClusterKeySlot(ctx context.Context, key string) *IntCmd {
+	cmd := NewIntCmd(ctx, "cluster", "keyslot", key)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ClusterGetKeysInSlot(ctx context.Context, slot int, count int) *StringSliceCmd {
+	cmd := NewStringSliceCmd(ctx, "cluster", "getkeysinslot", slot, count)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ClusterCountFailureReports(ctx context.Context, nodeID string) *IntCmd {
+	cmd := NewIntCmd(ctx, "cluster", "count-failure-reports", nodeID)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ClusterCountKeysInSlot(ctx context.Context, slot int) *IntCmd {
+	cmd := NewIntCmd(ctx, "cluster", "countkeysinslot", slot)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ClusterDelSlots(ctx context.Context, slots ...int) *StatusCmd {
+	args := make([]interface{}, 2+len(slots))
+	args[0] = "cluster"
+	args[1] = "delslots"
+	for i, slot := range slots {
+		args[2+i] = slot
+	}
+	cmd := NewStatusCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ClusterDelSlotsRange(ctx context.Context, min, max int) *StatusCmd {
+	size := max - min + 1
+	slots := make([]int, size)
+	for i := 0; i < size; i++ {
+		slots[i] = min + i
+	}
+	return c.ClusterDelSlots(ctx, slots...)
+}
+
+func (c cmdable) ClusterSaveConfig(ctx context.Context) *StatusCmd {
+	cmd := NewStatusCmd(ctx, "cluster", "saveconfig")
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ClusterSlaves(ctx context.Context, nodeID string) *StringSliceCmd {
+	cmd := NewStringSliceCmd(ctx, "cluster", "slaves", nodeID)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ClusterFailover(ctx context.Context) *StatusCmd {
+	cmd := NewStatusCmd(ctx, "cluster", "failover")
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ClusterAddSlots(ctx context.Context, slots ...int) *StatusCmd {
+	args := make([]interface{}, 2+len(slots))
+	args[0] = "cluster"
+	args[1] = "addslots"
+	for i, num := range slots {
+		args[2+i] = num
+	}
+	cmd := NewStatusCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) ClusterAddSlotsRange(ctx context.Context, min, max int) *StatusCmd {
+	size := max - min + 1
+	slots := make([]int, size)
+	for i := 0; i < size; i++ {
+		slots[i] = min + i
+	}
+	return c.ClusterAddSlots(ctx, slots...)
+}
+
+//------------------------------------------------------------------------------
+
+func (c cmdable) GeoAdd(ctx context.Context, key string, geoLocation ...*GeoLocation) *IntCmd {
+	args := make([]interface{}, 2+3*len(geoLocation))
+	args[0] = "geoadd"
+	args[1] = key
+	for i, eachLoc := range geoLocation {
+		args[2+3*i] = eachLoc.Longitude
+		args[2+3*i+1] = eachLoc.Latitude
+		args[2+3*i+2] = eachLoc.Name
+	}
+	cmd := NewIntCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+// GeoRadius is a read-only GEORADIUS_RO command.
+func (c cmdable) GeoRadius(
+	ctx context.Context, key string, longitude, latitude float64, query *GeoRadiusQuery,
+) *GeoLocationCmd {
+	cmd := NewGeoLocationCmd(ctx, query, "georadius_ro", key, longitude, latitude)
+	if query.Store != "" || query.StoreDist != "" {
+		cmd.SetErr(errors.New("GeoRadius does not support Store or StoreDist"))
+		return cmd
+	}
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+// GeoRadiusStore is a writing GEORADIUS command.
+func (c cmdable) GeoRadiusStore(
+	ctx context.Context, key string, longitude, latitude float64, query *GeoRadiusQuery,
+) *IntCmd {
+	args := geoLocationArgs(query, "georadius", key, longitude, latitude)
+	cmd := NewIntCmd(ctx, args...)
+	if query.Store == "" && query.StoreDist == "" {
+		cmd.SetErr(errors.New("GeoRadiusStore requires Store or StoreDist"))
+		return cmd
+	}
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+// GeoRadius is a read-only GEORADIUSBYMEMBER_RO command.
+func (c cmdable) GeoRadiusByMember(
+	ctx context.Context, key, member string, query *GeoRadiusQuery,
+) *GeoLocationCmd {
+	cmd := NewGeoLocationCmd(ctx, query, "georadiusbymember_ro", key, member)
+	if query.Store != "" || query.StoreDist != "" {
+		cmd.SetErr(errors.New("GeoRadiusByMember does not support Store or StoreDist"))
+		return cmd
+	}
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+// GeoRadiusByMemberStore is a writing GEORADIUSBYMEMBER command.
+func (c cmdable) GeoRadiusByMemberStore(
+	ctx context.Context, key, member string, query *GeoRadiusQuery,
+) *IntCmd {
+	args := geoLocationArgs(query, "georadiusbymember", key, member)
+	cmd := NewIntCmd(ctx, args...)
+	if query.Store == "" && query.StoreDist == "" {
+		cmd.SetErr(errors.New("GeoRadiusByMemberStore requires Store or StoreDist"))
+		return cmd
+	}
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) GeoDist(
+	ctx context.Context, key string, member1, member2, unit string,
+) *FloatCmd {
+	if unit == "" {
+		unit = "km"
+	}
+	cmd := NewFloatCmd(ctx, "geodist", key, member1, member2, unit)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) GeoHash(ctx context.Context, key string, members ...string) *StringSliceCmd {
+	args := make([]interface{}, 2+len(members))
+	args[0] = "geohash"
+	args[1] = key
+	for i, member := range members {
+		args[2+i] = member
+	}
+	cmd := NewStringSliceCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
+
+func (c cmdable) GeoPos(ctx context.Context, key string, members ...string) *GeoPosCmd {
+	args := make([]interface{}, 2+len(members))
+	args[0] = "geopos"
+	args[1] = key
+	for i, member := range members {
+		args[2+i] = member
+	}
+	cmd := NewGeoPosCmd(ctx, args...)
+	_ = c(ctx, cmd)
+	return cmd
+}
diff --git a/vendor/github.com/go-redis/redis/v7/doc.go b/vendor/github.com/go-redis/redis/v8/doc.go
index 55262533a6..55262533a6 100644
--- a/vendor/github.com/go-redis/redis/v7/doc.go
+++ b/vendor/github.com/go-redis/redis/v8/doc.go
diff --git a/vendor/github.com/go-redis/redis/v7/error.go b/vendor/github.com/go-redis/redis/v8/error.go
index 0ffaca9f8f..2ed5dc6284 100644
--- a/vendor/github.com/go-redis/redis/v7/error.go
+++ b/vendor/github.com/go-redis/redis/v8/error.go
@@ -6,8 +6,8 @@ import (
 	"net"
 	"strings"
 
-	"github.com/go-redis/redis/v7/internal/pool"
-	"github.com/go-redis/redis/v7/internal/proto"
+	"github.com/go-redis/redis/v8/internal/pool"
+	"github.com/go-redis/redis/v8/internal/proto"
 )
 
 var ErrClosed = pool.ErrClosed
@@ -24,15 +24,16 @@ type Error interface {
 
 var _ Error = proto.RedisError("")
 
-func isRetryableError(err error, retryTimeout bool) bool {
+func shouldRetry(err error, retryTimeout bool) bool {
 	switch err {
+	case io.EOF, io.ErrUnexpectedEOF:
+		return true
 	case nil, context.Canceled, context.DeadlineExceeded:
 		return false
-	case io.EOF:
-		return true
 	}
-	if netErr, ok := err.(net.Error); ok {
-		if netErr.Timeout() {
+
+	if v, ok := err.(timeoutError); ok {
+		if v.Timeout() {
 			return retryTimeout
 		}
 		return true
@@ -51,6 +52,10 @@ func isRetryableError(err error, retryTimeout bool) bool {
 	if strings.HasPrefix(s, "CLUSTERDOWN ") {
 		return true
 	}
+	if strings.HasPrefix(s, "TRYAGAIN ") {
+		return true
+	}
+
 	return false
 }
 
@@ -60,19 +65,25 @@ func isRedisError(err error) bool {
 }
 
 func isBadConn(err error, allowTimeout bool) bool {
-	if err == nil {
+	switch err {
+	case nil:
 		return false
+	case context.Canceled, context.DeadlineExceeded:
+		return true
 	}
+
 	if isRedisError(err) {
 		// Close connections in read only state in case domain addr is used
 		// and domain resolves to a different Redis Server. See #790.
 		return isReadOnlyError(err)
 	}
+
 	if allowTimeout {
 		if netErr, ok := err.(net.Error); ok && netErr.Timeout() {
-			return false
+			return !netErr.Temporary()
 		}
 	}
+
 	return true
 }
 
@@ -106,3 +117,9 @@ func isLoadingError(err error) bool {
 func isReadOnlyError(err error) bool {
 	return strings.HasPrefix(err.Error(), "READONLY ")
 }
+
+//------------------------------------------------------------------------------
+
+type timeoutError interface {
+	Timeout() bool
+}
diff --git a/vendor/github.com/go-redis/redis/v8/go.mod b/vendor/github.com/go-redis/redis/v8/go.mod
new file mode 100644
index 0000000000..4f5952762f
--- /dev/null
+++ b/vendor/github.com/go-redis/redis/v8/go.mod
@@ -0,0 +1,11 @@
+module github.com/go-redis/redis/v8
+
+go 1.13
+
+require (
+	github.com/cespare/xxhash/v2 v2.1.1
+	github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f
+	github.com/onsi/ginkgo v1.15.0
+	github.com/onsi/gomega v1.10.5
+	go.opentelemetry.io/otel v0.16.0
+)
diff --git a/vendor/github.com/go-redis/redis/v8/go.sum b/vendor/github.com/go-redis/redis/v8/go.sum
new file mode 100644
index 0000000000..b46929e693
--- /dev/null
+++ b/vendor/github.com/go-redis/redis/v8/go.sum
@@ -0,0 +1,97 @@
+github.com/cespare/xxhash/v2 v2.1.1 h1:6MnRN8NT7+YBpUIWxHtefFZOKTAPgGjpQSxqLNn0+qY=
+github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
+github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f h1:lO4WD4F/rVNCu3HqELle0jiPLLBs70cWOduZpkS1E78=
+github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f/go.mod h1:cuUVRXasLTGF7a8hSLbxyZXjz+1KgoB3wDUb6vlszIc=
+github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
+github.com/fsnotify/fsnotify v1.4.9 h1:hsms1Qyu0jgnwNXIxa+/V/PDsU6CfLf6CNO8H7IWoS4=
+github.com/fsnotify/fsnotify v1.4.9/go.mod h1:znqG4EE+3YCdAaPaxE2ZRY/06pZUdp0tY4IgpuI1SZQ=
+github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
+github.com/golang/protobuf v1.4.0-rc.1/go.mod h1:ceaxUfeHdC40wWswd/P6IGgMaK3YpKi5j83Wpe3EHw8=
+github.com/golang/protobuf v1.4.0-rc.1.0.20200221234624-67d41d38c208/go.mod h1:xKAWHe0F5eneWXFV3EuXVDTCmh+JuBKY0li0aMyXATA=
+github.com/golang/protobuf v1.4.0-rc.2/go.mod h1:LlEzMj4AhA7rCAGe4KMBDvJI+AwstrUpVNzEA03Pprs=
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+golang.org/x/sys v0.0.0-20191120155948-bd437916bb0e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200519105757-fe76b779f299/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f h1:+Nyd8tzPX9R7BWHguqsrbFdRx3WQ/1ib8I44HXV5yTA=
+golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210112080510-489259a85091/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
+golang.org/x/text v0.3.3 h1:cokOdA+Jmi5PJGXLlLllQSgYigAEfHXJAERHVMaCc2k=
+golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
+golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/tools v0.0.0-20201224043029-2b0845dc783e/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
+golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
+google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
+google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
+google.golang.org/protobuf v1.20.1-0.20200309200217-e05f789c0967/go.mod h1:A+miEFZTKqfCUM6K7xSMQL9OKL/b6hQv+e19PK+JZNE=
+google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzikPIcrTAo=
+google.golang.org/protobuf v1.23.0 h1:4MY060fB1DLGMB/7MBTLnwQUY6+F09GEiz6SsrNqyzM=
+google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
+gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ=
+gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
+gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.3.0 h1:clyUAQHOM3G0M3f5vQj7LuJrETvjVot3Z5el9nffUtU=
+gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
diff --git a/vendor/github.com/go-redis/redis/v8/internal/arg.go b/vendor/github.com/go-redis/redis/v8/internal/arg.go
new file mode 100644
index 0000000000..b97fa0d685
--- /dev/null
+++ b/vendor/github.com/go-redis/redis/v8/internal/arg.go
@@ -0,0 +1,56 @@
+package internal
+
+import (
+	"fmt"
+	"strconv"
+	"time"
+)
+
+func AppendArg(b []byte, v interface{}) []byte {
+	switch v := v.(type) {
+	case nil:
+		return append(b, "<nil>"...)
+	case string:
+		return appendUTF8String(b, Bytes(v))
+	case []byte:
+		return appendUTF8String(b, v)
+	case int:
+		return strconv.AppendInt(b, int64(v), 10)
+	case int8:
+		return strconv.AppendInt(b, int64(v), 10)
+	case int16:
+		return strconv.AppendInt(b, int64(v), 10)
+	case int32:
+		return strconv.AppendInt(b, int64(v), 10)
+	case int64:
+		return strconv.AppendInt(b, v, 10)
+	case uint:
+		return strconv.AppendUint(b, uint64(v), 10)
+	case uint8:
+		return strconv.AppendUint(b, uint64(v), 10)
+	case uint16:
+		return strconv.AppendUint(b, uint64(v), 10)
+	case uint32:
+		return strconv.AppendUint(b, uint64(v), 10)
+	case uint64:
+		return strconv.AppendUint(b, v, 10)
+	case float32:
+		return strconv.AppendFloat(b, float64(v), 'f', -1, 64)
+	case float64:
+		return strconv.AppendFloat(b, v, 'f', -1, 64)
+	case bool:
+		if v {
+			return append(b, "true"...)
+		}
+		return append(b, "false"...)
+	case time.Time:
+		return v.AppendFormat(b, time.RFC3339Nano)
+	default:
+		return append(b, fmt.Sprint(v)...)
+	}
+}
+
+func appendUTF8String(dst []byte, src []byte) []byte {
+	dst = append(dst, src...)
+	return dst
+}
diff --git a/vendor/github.com/go-redis/redis/v7/internal/hashtag/hashtag.go b/vendor/github.com/go-redis/redis/v8/internal/hashtag/hashtag.go
index 22f5b3981b..2fc74ad1cd 100644
--- a/vendor/github.com/go-redis/redis/v7/internal/hashtag/hashtag.go
+++ b/vendor/github.com/go-redis/redis/v8/internal/hashtag/hashtag.go
@@ -1,8 +1,9 @@
 package hashtag
 
 import (
-	"math/rand"
 	"strings"
+
+	"github.com/go-redis/redis/v8/internal/rand"
 )
 
 const slotNumber = 16384
diff --git a/vendor/github.com/go-redis/redis/v8/internal/hscan/hscan.go b/vendor/github.com/go-redis/redis/v8/internal/hscan/hscan.go
new file mode 100644
index 0000000000..181260b802
--- /dev/null
+++ b/vendor/github.com/go-redis/redis/v8/internal/hscan/hscan.go
@@ -0,0 +1,151 @@
+package hscan
+
+import (
+	"errors"
+	"fmt"
+	"reflect"
+	"strconv"
+)
+
+// decoderFunc represents decoding functions for default built-in types.
+type decoderFunc func(reflect.Value, string) error
+
+var (
+	// List of built-in decoders indexed by their numeric constant values (eg: reflect.Bool = 1).
+	decoders = []decoderFunc{
+		reflect.Bool:          decodeBool,
+		reflect.Int:           decodeInt,
+		reflect.Int8:          decodeInt,
+		reflect.Int16:         decodeInt,
+		reflect.Int32:         decodeInt,
+		reflect.Int64:         decodeInt,
+		reflect.Uint:          decodeUint,
+		reflect.Uint8:         decodeUint,
+		reflect.Uint16:        decodeUint,
+		reflect.Uint32:        decodeUint,
+		reflect.Uint64:        decodeUint,
+		reflect.Float32:       decodeFloat,
+		reflect.Float64:       decodeFloat,
+		reflect.Complex64:     decodeUnsupported,
+		reflect.Complex128:    decodeUnsupported,
+		reflect.Array:         decodeUnsupported,
+		reflect.Chan:          decodeUnsupported,
+		reflect.Func:          decodeUnsupported,
+		reflect.Interface:     decodeUnsupported,
+		reflect.Map:           decodeUnsupported,
+		reflect.Ptr:           decodeUnsupported,
+		reflect.Slice:         decodeSlice,
+		reflect.String:        decodeString,
+		reflect.Struct:        decodeUnsupported,
+		reflect.UnsafePointer: decodeUnsupported,
+	}
+
+	// Global map of struct field specs that is populated once for every new
+	// struct type that is scanned. This caches the field types and the corresponding
+	// decoder functions to avoid iterating through struct fields on subsequent scans.
+	globalStructMap = newStructMap()
+)
+
+func Struct(dst interface{}) (StructValue, error) {
+	v := reflect.ValueOf(dst)
+
+	// The dstination to scan into should be a struct pointer.
+	if v.Kind() != reflect.Ptr || v.IsNil() {
+		return StructValue{}, fmt.Errorf("redis.Scan(non-pointer %T)", dst)
+	}
+
+	v = v.Elem()
+	if v.Kind() != reflect.Struct {
+		return StructValue{}, fmt.Errorf("redis.Scan(non-struct %T)", dst)
+	}
+
+	return StructValue{
+		spec:  globalStructMap.get(v.Type()),
+		value: v,
+	}, nil
+}
+
+// Scan scans the results from a key-value Redis map result set to a destination struct.
+// The Redis keys are matched to the struct's field with the `redis` tag.
+func Scan(dst interface{}, keys []interface{}, vals []interface{}) error {
+	if len(keys) != len(vals) {
+		return errors.New("args should have the same number of keys and vals")
+	}
+
+	strct, err := Struct(dst)
+	if err != nil {
+		return err
+	}
+
+	// Iterate through the (key, value) sequence.
+	for i := 0; i < len(vals); i++ {
+		key, ok := keys[i].(string)
+		if !ok {
+			continue
+		}
+
+		val, ok := vals[i].(string)
+		if !ok {
+			continue
+		}
+
+		if err := strct.Scan(key, val); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func decodeBool(f reflect.Value, s string) error {
+	b, err := strconv.ParseBool(s)
+	if err != nil {
+		return err
+	}
+	f.SetBool(b)
+	return nil
+}
+
+func decodeInt(f reflect.Value, s string) error {
+	v, err := strconv.ParseInt(s, 10, 0)
+	if err != nil {
+		return err
+	}
+	f.SetInt(v)
+	return nil
+}
+
+func decodeUint(f reflect.Value, s string) error {
+	v, err := strconv.ParseUint(s, 10, 0)
+	if err != nil {
+		return err
+	}
+	f.SetUint(v)
+	return nil
+}
+
+func decodeFloat(f reflect.Value, s string) error {
+	v, err := strconv.ParseFloat(s, 0)
+	if err != nil {
+		return err
+	}
+	f.SetFloat(v)
+	return nil
+}
+
+func decodeString(f reflect.Value, s string) error {
+	f.SetString(s)
+	return nil
+}
+
+func decodeSlice(f reflect.Value, s string) error {
+	// []byte slice ([]uint8).
+	if f.Type().Elem().Kind() == reflect.Uint8 {
+		f.SetBytes([]byte(s))
+	}
+	return nil
+}
+
+func decodeUnsupported(v reflect.Value, s string) error {
+	return fmt.Errorf("redis.Scan(unsupported %s)", v.Type())
+}
diff --git a/vendor/github.com/go-redis/redis/v8/internal/hscan/structmap.go b/vendor/github.com/go-redis/redis/v8/internal/hscan/structmap.go
new file mode 100644
index 0000000000..37d86ba551
--- /dev/null
+++ b/vendor/github.com/go-redis/redis/v8/internal/hscan/structmap.go
@@ -0,0 +1,87 @@
+package hscan
+
+import (
+	"reflect"
+	"strings"
+	"sync"
+)
+
+// structMap contains the map of struct fields for target structs
+// indexed by the struct type.
+type structMap struct {
+	m sync.Map
+}
+
+func newStructMap() *structMap {
+	return new(structMap)
+}
+
+func (s *structMap) get(t reflect.Type) *structSpec {
+	if v, ok := s.m.Load(t); ok {
+		return v.(*structSpec)
+	}
+
+	spec := newStructSpec(t, "redis")
+	s.m.Store(t, spec)
+	return spec
+}
+
+//------------------------------------------------------------------------------
+
+// structSpec contains the list of all fields in a target struct.
+type structSpec struct {
+	m map[string]*structField
+}
+
+func (s *structSpec) set(tag string, sf *structField) {
+	s.m[tag] = sf
+}
+
+func newStructSpec(t reflect.Type, fieldTag string) *structSpec {
+	out := &structSpec{
+		m: make(map[string]*structField),
+	}
+
+	num := t.NumField()
+	for i := 0; i < num; i++ {
+		f := t.Field(i)
+
+		tag := f.Tag.Get(fieldTag)
+		if tag == "" || tag == "-" {
+			continue
+		}
+
+		tag = strings.Split(tag, ",")[0]
+		if tag == "" {
+			continue
+		}
+
+		// Use the built-in decoder.
+		out.set(tag, &structField{index: i, fn: decoders[f.Type.Kind()]})
+	}
+
+	return out
+}
+
+//------------------------------------------------------------------------------
+
+// structField represents a single field in a target struct.
+type structField struct {
+	index int
+	fn    decoderFunc
+}
+
+//------------------------------------------------------------------------------
+
+type StructValue struct {
+	spec  *structSpec
+	value reflect.Value
+}
+
+func (s StructValue) Scan(key string, value string) error {
+	field, ok := s.spec.m[key]
+	if !ok {
+		return nil
+	}
+	return field.fn(s.value.Field(field.index), value)
+}
diff --git a/vendor/github.com/go-redis/redis/v8/internal/instruments.go b/vendor/github.com/go-redis/redis/v8/internal/instruments.go
new file mode 100644
index 0000000000..2d7dacce7a
--- /dev/null
+++ b/vendor/github.com/go-redis/redis/v8/internal/instruments.go
@@ -0,0 +1,33 @@
+package internal
+
+import (
+	"context"
+
+	"go.opentelemetry.io/otel"
+	"go.opentelemetry.io/otel/metric"
+)
+
+var (
+	// WritesCounter is a count of write commands performed.
+	WritesCounter metric.Int64Counter
+	// NewConnectionsCounter is a count of new connections.
+	NewConnectionsCounter metric.Int64Counter
+)
+
+func init() {
+	defer func() {
+		if r := recover(); r != nil {
+			Logger.Printf(context.Background(), "Error creating meter github.com/go-redis/redis for Instruments", r)
+		}
+	}()
+
+	meter := metric.Must(otel.Meter("github.com/go-redis/redis"))
+
+	WritesCounter = meter.NewInt64Counter("redis.writes",
+		metric.WithDescription("the number of writes initiated"),
+	)
+
+	NewConnectionsCounter = meter.NewInt64Counter("redis.new_connections",
+		metric.WithDescription("the number of connections created"),
+	)
+}
diff --git a/vendor/github.com/go-redis/redis/v8/internal/internal.go b/vendor/github.com/go-redis/redis/v8/internal/internal.go
new file mode 100644
index 0000000000..4a59c599be
--- /dev/null
+++ b/vendor/github.com/go-redis/redis/v8/internal/internal.go
@@ -0,0 +1,29 @@
+package internal
+
+import (
+	"time"
+
+	"github.com/go-redis/redis/v8/internal/rand"
+)
+
+func RetryBackoff(retry int, minBackoff, maxBackoff time.Duration) time.Duration {
+	if retry < 0 {
+		panic("not reached")
+	}
+	if minBackoff == 0 {
+		return 0
+	}
+
+	d := minBackoff << uint(retry)
+	if d < minBackoff {
+		return maxBackoff
+	}
+
+	d = minBackoff + time.Duration(rand.Int63n(int64(d)))
+
+	if d > maxBackoff || d < minBackoff {
+		d = maxBackoff
+	}
+
+	return d
+}
diff --git a/vendor/github.com/go-redis/redis/v8/internal/log.go b/vendor/github.com/go-redis/redis/v8/internal/log.go
new file mode 100644
index 0000000000..3810f9e4e7
--- /dev/null
+++ b/vendor/github.com/go-redis/redis/v8/internal/log.go
@@ -0,0 +1,24 @@
+package internal
+
+import (
+	"context"
+	"fmt"
+	"log"
+	"os"
+)
+
+type Logging interface {
+	Printf(ctx context.Context, format string, v ...interface{})
+}
+
+type logger struct {
+	log *log.Logger
+}
+
+func (l *logger) Printf(ctx context.Context, format string, v ...interface{}) {
+	_ = l.log.Output(2, fmt.Sprintf(format, v...))
+}
+
+var Logger Logging = &logger{
+	log: log.New(os.Stderr, "redis: ", log.LstdFlags|log.Lshortfile),
+}
diff --git a/vendor/github.com/go-redis/redis/v7/internal/once.go b/vendor/github.com/go-redis/redis/v8/internal/once.go
index 64f46272ae..64f46272ae 100644
--- a/vendor/github.com/go-redis/redis/v7/internal/once.go
+++ b/vendor/github.com/go-redis/redis/v8/internal/once.go
diff --git a/vendor/github.com/go-redis/redis/v7/internal/pool/conn.go b/vendor/github.com/go-redis/redis/v8/internal/pool/conn.go
index e9a2585463..b784530438 100644
--- a/vendor/github.com/go-redis/redis/v7/internal/pool/conn.go
+++ b/vendor/github.com/go-redis/redis/v8/internal/pool/conn.go
@@ -1,26 +1,30 @@
 package pool
 
 import (
+	"bufio"
 	"context"
 	"net"
 	"sync/atomic"
 	"time"
 
-	"github.com/go-redis/redis/v7/internal/proto"
+	"github.com/go-redis/redis/v8/internal"
+	"github.com/go-redis/redis/v8/internal/proto"
+	"go.opentelemetry.io/otel/trace"
 )
 
 var noDeadline = time.Time{}
 
 type Conn struct {
+	usedAt  int64 // atomic
 	netConn net.Conn
 
 	rd *proto.Reader
+	bw *bufio.Writer
 	wr *proto.Writer
 
 	Inited    bool
 	pooled    bool
 	createdAt time.Time
-	usedAt    int64 // atomic
 }
 
 func NewConn(netConn net.Conn) *Conn {
@@ -29,7 +33,8 @@ func NewConn(netConn net.Conn) *Conn {
 		createdAt: time.Now(),
 	}
 	cn.rd = proto.NewReader(netConn)
-	cn.wr = proto.NewWriter(netConn)
+	cn.bw = bufio.NewWriter(netConn)
+	cn.wr = proto.NewWriter(cn.bw)
 	cn.SetUsedAt(time.Now())
 	return cn
 }
@@ -46,7 +51,7 @@ func (cn *Conn) SetUsedAt(tm time.Time) {
 func (cn *Conn) SetNetConn(netConn net.Conn) {
 	cn.netConn = netConn
 	cn.rd.Reset(netConn)
-	cn.wr.Reset(netConn)
+	cn.bw.Reset(netConn)
 }
 
 func (cn *Conn) Write(b []byte) (int, error) {
@@ -54,35 +59,48 @@ func (cn *Conn) Write(b []byte) (int, error) {
 }
 
 func (cn *Conn) RemoteAddr() net.Addr {
-	return cn.netConn.RemoteAddr()
+	if cn.netConn != nil {
+		return cn.netConn.RemoteAddr()
+	}
+	return nil
 }
 
 func (cn *Conn) WithReader(ctx context.Context, timeout time.Duration, fn func(rd *proto.Reader) error) error {
-	err := cn.netConn.SetReadDeadline(cn.deadline(ctx, timeout))
-	if err != nil {
-		return err
-	}
-	return fn(cn.rd)
+	return internal.WithSpan(ctx, "redis.with_reader", func(ctx context.Context, span trace.Span) error {
+		if err := cn.netConn.SetReadDeadline(cn.deadline(ctx, timeout)); err != nil {
+			return internal.RecordError(ctx, span, err)
+		}
+		if err := fn(cn.rd); err != nil {
+			return internal.RecordError(ctx, span, err)
+		}
+		return nil
+	})
 }
 
 func (cn *Conn) WithWriter(
 	ctx context.Context, timeout time.Duration, fn func(wr *proto.Writer) error,
 ) error {
-	err := cn.netConn.SetWriteDeadline(cn.deadline(ctx, timeout))
-	if err != nil {
-		return err
-	}
+	return internal.WithSpan(ctx, "redis.with_writer", func(ctx context.Context, span trace.Span) error {
+		if err := cn.netConn.SetWriteDeadline(cn.deadline(ctx, timeout)); err != nil {
+			return internal.RecordError(ctx, span, err)
+		}
 
-	if cn.wr.Buffered() > 0 {
-		cn.wr.Reset(cn.netConn)
-	}
+		if cn.bw.Buffered() > 0 {
+			cn.bw.Reset(cn.netConn)
+		}
 
-	err = fn(cn.wr)
-	if err != nil {
-		return err
-	}
+		if err := fn(cn.wr); err != nil {
+			return internal.RecordError(ctx, span, err)
+		}
+
+		if err := cn.bw.Flush(); err != nil {
+			return internal.RecordError(ctx, span, err)
+		}
+
+		internal.WritesCounter.Add(ctx, 1)
 
-	return cn.wr.Flush()
+		return nil
+	})
 }
 
 func (cn *Conn) Close() error {
diff --git a/vendor/github.com/go-redis/redis/v7/internal/pool/pool.go b/vendor/github.com/go-redis/redis/v8/internal/pool/pool.go
index a8d8276a9f..254a18de50 100644
--- a/vendor/github.com/go-redis/redis/v7/internal/pool/pool.go
+++ b/vendor/github.com/go-redis/redis/v8/internal/pool/pool.go
@@ -8,11 +8,13 @@ import (
 	"sync/atomic"
 	"time"
 
-	"github.com/go-redis/redis/v7/internal"
+	"github.com/go-redis/redis/v8/internal"
 )
 
-var ErrClosed = errors.New("redis: client is closed")
-var ErrPoolTimeout = errors.New("redis: connection pool timeout")
+var (
+	ErrClosed      = errors.New("redis: client is closed")
+	ErrPoolTimeout = errors.New("redis: connection pool timeout")
+)
 
 var timers = sync.Pool{
 	New: func() interface{} {
@@ -38,8 +40,8 @@ type Pooler interface {
 	CloseConn(*Conn) error
 
 	Get(context.Context) (*Conn, error)
-	Put(*Conn)
-	Remove(*Conn, error)
+	Put(context.Context, *Conn)
+	Remove(context.Context, *Conn, error)
 
 	Len() int
 	IdleLen() int
@@ -60,13 +62,16 @@ type Options struct {
 	IdleCheckFrequency time.Duration
 }
 
+type lastDialErrorWrap struct {
+	err error
+}
+
 type ConnPool struct {
 	opt *Options
 
 	dialErrorsNum uint32 // atomic
 
-	lastDialErrorMu sync.RWMutex
-	lastDialError   error
+	lastDialError atomic.Value
 
 	queue chan struct{}
 
@@ -158,6 +163,7 @@ func (p *ConnPool) newConn(ctx context.Context, pooled bool) (*Conn, error) {
 		}
 	}
 	p.connsMu.Unlock()
+
 	return cn, nil
 }
 
@@ -179,6 +185,7 @@ func (p *ConnPool) dialConn(ctx context.Context, pooled bool) (*Conn, error) {
 		return nil, err
 	}
 
+	internal.NewConnectionsCounter.Add(ctx, 1)
 	cn := NewConn(netConn)
 	cn.pooled = pooled
 	return cn, nil
@@ -204,16 +211,15 @@ func (p *ConnPool) tryDial() {
 }
 
 func (p *ConnPool) setLastDialError(err error) {
-	p.lastDialErrorMu.Lock()
-	p.lastDialError = err
-	p.lastDialErrorMu.Unlock()
+	p.lastDialError.Store(&lastDialErrorWrap{err: err})
 }
 
 func (p *ConnPool) getLastDialError() error {
-	p.lastDialErrorMu.RLock()
-	err := p.lastDialError
-	p.lastDialErrorMu.RUnlock()
-	return err
+	err, _ := p.lastDialError.Load().(*lastDialErrorWrap)
+	if err != nil {
+		return err.err
+	}
+	return nil
 }
 
 // Get returns existed connection from the pool or creates a new one.
@@ -313,15 +319,15 @@ func (p *ConnPool) popIdle() *Conn {
 	return cn
 }
 
-func (p *ConnPool) Put(cn *Conn) {
+func (p *ConnPool) Put(ctx context.Context, cn *Conn) {
 	if cn.rd.Buffered() > 0 {
-		internal.Logger.Printf("Conn has unread data")
-		p.Remove(cn, BadConnError{})
+		internal.Logger.Printf(ctx, "Conn has unread data")
+		p.Remove(ctx, cn, BadConnError{})
 		return
 	}
 
 	if !cn.pooled {
-		p.Remove(cn, nil)
+		p.Remove(ctx, cn, nil)
 		return
 	}
 
@@ -332,7 +338,7 @@ func (p *ConnPool) Put(cn *Conn) {
 	p.freeTurn()
 }
 
-func (p *ConnPool) Remove(cn *Conn, reason error) {
+func (p *ConnPool) Remove(ctx context.Context, cn *Conn, reason error) {
 	p.removeConnWithLock(cn)
 	p.freeTurn()
 	_ = p.closeConn(cn)
@@ -403,8 +409,10 @@ func (p *ConnPool) closed() bool {
 }
 
 func (p *ConnPool) Filter(fn func(*Conn) bool) error {
-	var firstErr error
 	p.connsMu.Lock()
+	defer p.connsMu.Unlock()
+
+	var firstErr error
 	for _, cn := range p.conns {
 		if fn(cn) {
 			if err := p.closeConn(cn); err != nil && firstErr == nil {
@@ -412,7 +420,6 @@ func (p *ConnPool) Filter(fn func(*Conn) bool) error {
 			}
 		}
 	}
-	p.connsMu.Unlock()
 	return firstErr
 }
 
@@ -453,7 +460,7 @@ func (p *ConnPool) reaper(frequency time.Duration) {
 			}
 			_, err := p.ReapStaleConns()
 			if err != nil {
-				internal.Logger.Printf("ReapStaleConns failed: %s", err)
+				internal.Logger.Printf(context.Background(), "ReapStaleConns failed: %s", err)
 				continue
 			}
 		case <-p.closedCh:
@@ -470,6 +477,7 @@ func (p *ConnPool) ReapStaleConns() (int, error) {
 		p.connsMu.Lock()
 		cn := p.reapStaleConn()
 		p.connsMu.Unlock()
+
 		p.freeTurn()
 
 		if cn != nil {
diff --git a/vendor/github.com/go-redis/redis/v8/internal/pool/pool_single.go b/vendor/github.com/go-redis/redis/v8/internal/pool/pool_single.go
new file mode 100644
index 0000000000..5a3fde191b
--- /dev/null
+++ b/vendor/github.com/go-redis/redis/v8/internal/pool/pool_single.go
@@ -0,0 +1,58 @@
+package pool
+
+import "context"
+
+type SingleConnPool struct {
+	pool      Pooler
+	cn        *Conn
+	stickyErr error
+}
+
+var _ Pooler = (*SingleConnPool)(nil)
+
+func NewSingleConnPool(pool Pooler, cn *Conn) *SingleConnPool {
+	return &SingleConnPool{
+		pool: pool,
+		cn:   cn,
+	}
+}
+
+func (p *SingleConnPool) NewConn(ctx context.Context) (*Conn, error) {
+	return p.pool.NewConn(ctx)
+}
+
+func (p *SingleConnPool) CloseConn(cn *Conn) error {
+	return p.pool.CloseConn(cn)
+}
+
+func (p *SingleConnPool) Get(ctx context.Context) (*Conn, error) {
+	if p.stickyErr != nil {
+		return nil, p.stickyErr
+	}
+	return p.cn, nil
+}
+
+func (p *SingleConnPool) Put(ctx context.Context, cn *Conn) {}
+
+func (p *SingleConnPool) Remove(ctx context.Context, cn *Conn, reason error) {
+	p.cn = nil
+	p.stickyErr = reason
+}
+
+func (p *SingleConnPool) Close() error {
+	p.cn = nil
+	p.stickyErr = ErrClosed
+	return nil
+}
+
+func (p *SingleConnPool) Len() int {
+	return 0
+}
+
+func (p *SingleConnPool) IdleLen() int {
+	return 0
+}
+
+func (p *SingleConnPool) Stats() *Stats {
+	return &Stats{}
+}
diff --git a/vendor/github.com/go-redis/redis/v7/internal/pool/pool_single.go b/vendor/github.com/go-redis/redis/v8/internal/pool/pool_sticky.go
index 04758a00d4..c3e7e7c045 100644
--- a/vendor/github.com/go-redis/redis/v7/internal/pool/pool_single.go
+++ b/vendor/github.com/go-redis/redis/v8/internal/pool/pool_sticky.go
@@ -2,6 +2,7 @@ package pool
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"sync/atomic"
 )
@@ -30,9 +31,11 @@ func (e BadConnError) Unwrap() error {
 	return e.wrapped
 }
 
-type SingleConnPool struct {
-	pool  Pooler
-	level int32 // atomic
+//------------------------------------------------------------------------------
+
+type StickyConnPool struct {
+	pool   Pooler
+	shared int32 // atomic
 
 	state uint32 // atomic
 	ch    chan *Conn
@@ -40,37 +43,29 @@ type SingleConnPool struct {
 	_badConnError atomic.Value
 }
 
-var _ Pooler = (*SingleConnPool)(nil)
+var _ Pooler = (*StickyConnPool)(nil)
 
-func NewSingleConnPool(pool Pooler) *SingleConnPool {
-	p, ok := pool.(*SingleConnPool)
+func NewStickyConnPool(pool Pooler) *StickyConnPool {
+	p, ok := pool.(*StickyConnPool)
 	if !ok {
-		p = &SingleConnPool{
+		p = &StickyConnPool{
 			pool: pool,
 			ch:   make(chan *Conn, 1),
 		}
 	}
-	atomic.AddInt32(&p.level, 1)
+	atomic.AddInt32(&p.shared, 1)
 	return p
 }
 
-func (p *SingleConnPool) SetConn(cn *Conn) {
-	if atomic.CompareAndSwapUint32(&p.state, stateDefault, stateInited) {
-		p.ch <- cn
-	} else {
-		panic("not reached")
-	}
-}
-
-func (p *SingleConnPool) NewConn(ctx context.Context) (*Conn, error) {
+func (p *StickyConnPool) NewConn(ctx context.Context) (*Conn, error) {
 	return p.pool.NewConn(ctx)
 }
 
-func (p *SingleConnPool) CloseConn(cn *Conn) error {
+func (p *StickyConnPool) CloseConn(cn *Conn) error {
 	return p.pool.CloseConn(cn)
 }
 
-func (p *SingleConnPool) Get(ctx context.Context) (*Conn, error) {
+func (p *StickyConnPool) Get(ctx context.Context) (*Conn, error) {
 	// In worst case this races with Close which is not a very common operation.
 	for i := 0; i < 1000; i++ {
 		switch atomic.LoadUint32(&p.state) {
@@ -82,7 +77,7 @@ func (p *SingleConnPool) Get(ctx context.Context) (*Conn, error) {
 			if atomic.CompareAndSwapUint32(&p.state, stateDefault, stateInited) {
 				return cn, nil
 			}
-			p.pool.Remove(cn, ErrClosed)
+			p.pool.Remove(ctx, cn, ErrClosed)
 		case stateInited:
 			if err := p.badConnError(); err != nil {
 				return nil, err
@@ -98,60 +93,38 @@ func (p *SingleConnPool) Get(ctx context.Context) (*Conn, error) {
 			panic("not reached")
 		}
 	}
-	return nil, fmt.Errorf("redis: SingleConnPool.Get: infinite loop")
+	return nil, fmt.Errorf("redis: StickyConnPool.Get: infinite loop")
 }
 
-func (p *SingleConnPool) Put(cn *Conn) {
+func (p *StickyConnPool) Put(ctx context.Context, cn *Conn) {
 	defer func() {
 		if recover() != nil {
-			p.freeConn(cn)
+			p.freeConn(ctx, cn)
 		}
 	}()
 	p.ch <- cn
 }
 
-func (p *SingleConnPool) freeConn(cn *Conn) {
+func (p *StickyConnPool) freeConn(ctx context.Context, cn *Conn) {
 	if err := p.badConnError(); err != nil {
-		p.pool.Remove(cn, err)
+		p.pool.Remove(ctx, cn, err)
 	} else {
-		p.pool.Put(cn)
+		p.pool.Put(ctx, cn)
 	}
 }
 
-func (p *SingleConnPool) Remove(cn *Conn, reason error) {
+func (p *StickyConnPool) Remove(ctx context.Context, cn *Conn, reason error) {
 	defer func() {
 		if recover() != nil {
-			p.pool.Remove(cn, ErrClosed)
+			p.pool.Remove(ctx, cn, ErrClosed)
 		}
 	}()
 	p._badConnError.Store(BadConnError{wrapped: reason})
 	p.ch <- cn
 }
 
-func (p *SingleConnPool) Len() int {
-	switch atomic.LoadUint32(&p.state) {
-	case stateDefault:
-		return 0
-	case stateInited:
-		return 1
-	case stateClosed:
-		return 0
-	default:
-		panic("not reached")
-	}
-}
-
-func (p *SingleConnPool) IdleLen() int {
-	return len(p.ch)
-}
-
-func (p *SingleConnPool) Stats() *Stats {
-	return &Stats{}
-}
-
-func (p *SingleConnPool) Close() error {
-	level := atomic.AddInt32(&p.level, -1)
-	if level > 0 {
+func (p *StickyConnPool) Close() error {
+	if shared := atomic.AddInt32(&p.shared, -1); shared > 0 {
 		return nil
 	}
 
@@ -164,16 +137,16 @@ func (p *SingleConnPool) Close() error {
 			close(p.ch)
 			cn, ok := <-p.ch
 			if ok {
-				p.freeConn(cn)
+				p.freeConn(context.TODO(), cn)
 			}
 			return nil
 		}
 	}
 
-	return fmt.Errorf("redis: SingleConnPool.Close: infinite loop")
+	return errors.New("redis: StickyConnPool.Close: infinite loop")
 }
 
-func (p *SingleConnPool) Reset() error {
+func (p *StickyConnPool) Reset(ctx context.Context) error {
 	if p.badConnError() == nil {
 		return nil
 	}
@@ -183,21 +156,21 @@ func (p *SingleConnPool) Reset() error {
 		if !ok {
 			return ErrClosed
 		}
-		p.pool.Remove(cn, ErrClosed)
+		p.pool.Remove(ctx, cn, ErrClosed)
 		p._badConnError.Store(BadConnError{wrapped: nil})
 	default:
-		return fmt.Errorf("redis: SingleConnPool does not have a Conn")
+		return errors.New("redis: StickyConnPool does not have a Conn")
 	}
 
 	if !atomic.CompareAndSwapUint32(&p.state, stateInited, stateDefault) {
 		state := atomic.LoadUint32(&p.state)
-		return fmt.Errorf("redis: invalid SingleConnPool state: %d", state)
+		return fmt.Errorf("redis: invalid StickyConnPool state: %d", state)
 	}
 
 	return nil
 }
 
-func (p *SingleConnPool) badConnError() error {
+func (p *StickyConnPool) badConnError() error {
 	if v := p._badConnError.Load(); v != nil {
 		err := v.(BadConnError)
 		if err.wrapped != nil {
@@ -206,3 +179,24 @@ func (p *SingleConnPool) badConnError() error {
 	}
 	return nil
 }
+
+func (p *StickyConnPool) Len() int {
+	switch atomic.LoadUint32(&p.state) {
+	case stateDefault:
+		return 0
+	case stateInited:
+		return 1
+	case stateClosed:
+		return 0
+	default:
+		panic("not reached")
+	}
+}
+
+func (p *StickyConnPool) IdleLen() int {
+	return len(p.ch)
+}
+
+func (p *StickyConnPool) Stats() *Stats {
+	return &Stats{}
+}
diff --git a/vendor/github.com/go-redis/redis/v7/internal/proto/reader.go b/vendor/github.com/go-redis/redis/v8/internal/proto/reader.go
index d3f646e98f..0fbc51e9ac 100644
--- a/vendor/github.com/go-redis/redis/v7/internal/proto/reader.go
+++ b/vendor/github.com/go-redis/redis/v8/internal/proto/reader.go
@@ -5,7 +5,7 @@ import (
 	"fmt"
 	"io"
 
-	"github.com/go-redis/redis/v7/internal/util"
+	"github.com/go-redis/redis/v8/internal/util"
 )
 
 const (
@@ -71,13 +71,25 @@ func (r *Reader) ReadLine() ([]byte, error) {
 func (r *Reader) readLine() ([]byte, error) {
 	b, err := r.rd.ReadSlice('\n')
 	if err != nil {
-		return nil, err
+		if err != bufio.ErrBufferFull {
+			return nil, err
+		}
+
+		full := make([]byte, len(b))
+		copy(full, b)
+
+		b, err = r.rd.ReadBytes('\n')
+		if err != nil {
+			return nil, err
+		}
+
+		full = append(full, b...)
+		b = full
 	}
 	if len(b) <= 2 || b[len(b)-1] != '\n' || b[len(b)-2] != '\r' {
 		return nil, fmt.Errorf("redis: invalid reply: %q", b)
 	}
-	b = b[:len(b)-2]
-	return b, nil
+	return b[:len(b)-2], nil
 }
 
 func (r *Reader) ReadReply(m MultiBulkParse) (interface{}, error) {
@@ -181,7 +193,7 @@ func (r *Reader) ReadArrayReply(m MultiBulkParse) (interface{}, error) {
 	}
 }
 
-func (r *Reader) ReadArrayLen() (int64, error) {
+func (r *Reader) ReadArrayLen() (int, error) {
 	line, err := r.ReadLine()
 	if err != nil {
 		return 0, err
@@ -190,7 +202,11 @@ func (r *Reader) ReadArrayLen() (int64, error) {
 	case ErrorReply:
 		return 0, ParseErrorReply(line)
 	case ArrayReply:
-		return parseArrayLen(line)
+		n, err := parseArrayLen(line)
+		if err != nil {
+			return 0, err
+		}
+		return int(n), nil
 	default:
 		return 0, fmt.Errorf("redis: can't parse array reply: %.100q", line)
 	}
@@ -216,7 +232,8 @@ func (r *Reader) ReadScanReply() ([]string, uint64, error) {
 	}
 
 	keys := make([]string, n)
-	for i := int64(0); i < n; i++ {
+
+	for i := 0; i < n; i++ {
 		key, err := r.ReadString()
 		if err != nil {
 			return nil, 0, err
diff --git a/vendor/github.com/go-redis/redis/v7/internal/proto/scan.go b/vendor/github.com/go-redis/redis/v8/internal/proto/scan.go
index 90c1e4ae6e..c2c3ed17de 100644
--- a/vendor/github.com/go-redis/redis/v7/internal/proto/scan.go
+++ b/vendor/github.com/go-redis/redis/v8/internal/proto/scan.go
@@ -4,10 +4,13 @@ import (
 	"encoding"
 	"fmt"
 	"reflect"
+	"time"
 
-	"github.com/go-redis/redis/v7/internal/util"
+	"github.com/go-redis/redis/v8/internal/util"
 )
 
+// Scan parses bytes `b` to `v` with appropriate type.
+// nolint: gocyclo
 func Scan(b []byte, v interface{}) error {
 	switch v := v.(type) {
 	case nil:
@@ -99,6 +102,10 @@ func Scan(b []byte, v interface{}) error {
 	case *bool:
 		*v = len(b) == 1 && b[0] == '1'
 		return nil
+	case *time.Time:
+		var err error
+		*v, err = time.Parse(time.RFC3339Nano, util.BytesToString(b))
+		return err
 	case encoding.BinaryUnmarshaler:
 		return v.UnmarshalBinary(b)
 	default:
@@ -124,7 +131,7 @@ func ScanSlice(data []string, slice interface{}) error {
 	for i, s := range data {
 		elem := next()
 		if err := Scan([]byte(s), elem.Addr().Interface()); err != nil {
-			err = fmt.Errorf("redis: ScanSlice index=%d value=%q failed: %s", i, s, err)
+			err = fmt.Errorf("redis: ScanSlice index=%d value=%q failed: %w", i, s, err)
 			return err
 		}
 	}
diff --git a/vendor/github.com/go-redis/redis/v7/internal/proto/writer.go b/vendor/github.com/go-redis/redis/v8/internal/proto/writer.go
index d552f1e84d..81b09b8e4f 100644
--- a/vendor/github.com/go-redis/redis/v7/internal/proto/writer.go
+++ b/vendor/github.com/go-redis/redis/v8/internal/proto/writer.go
@@ -1,26 +1,32 @@
 package proto
 
 import (
-	"bufio"
 	"encoding"
 	"fmt"
 	"io"
 	"strconv"
 	"time"
 
-	"github.com/go-redis/redis/v7/internal/util"
+	"github.com/go-redis/redis/v8/internal/util"
 )
 
+type writer interface {
+	io.Writer
+	io.ByteWriter
+	// io.StringWriter
+	WriteString(s string) (n int, err error)
+}
+
 type Writer struct {
-	wr *bufio.Writer
+	writer
 
 	lenBuf []byte
 	numBuf []byte
 }
 
-func NewWriter(wr io.Writer) *Writer {
+func NewWriter(wr writer) *Writer {
 	return &Writer{
-		wr: bufio.NewWriter(wr),
+		writer: wr,
 
 		lenBuf: make([]byte, 64),
 		numBuf: make([]byte, 64),
@@ -28,19 +34,16 @@ func NewWriter(wr io.Writer) *Writer {
 }
 
 func (w *Writer) WriteArgs(args []interface{}) error {
-	err := w.wr.WriteByte(ArrayReply)
-	if err != nil {
+	if err := w.WriteByte(ArrayReply); err != nil {
 		return err
 	}
 
-	err = w.writeLen(len(args))
-	if err != nil {
+	if err := w.writeLen(len(args)); err != nil {
 		return err
 	}
 
 	for _, arg := range args {
-		err := w.writeArg(arg)
-		if err != nil {
+		if err := w.WriteArg(arg); err != nil {
 			return err
 		}
 	}
@@ -51,11 +54,11 @@ func (w *Writer) WriteArgs(args []interface{}) error {
 func (w *Writer) writeLen(n int) error {
 	w.lenBuf = strconv.AppendUint(w.lenBuf[:0], uint64(n), 10)
 	w.lenBuf = append(w.lenBuf, '\r', '\n')
-	_, err := w.wr.Write(w.lenBuf)
+	_, err := w.Write(w.lenBuf)
 	return err
 }
 
-func (w *Writer) writeArg(v interface{}) error {
+func (w *Writer) WriteArg(v interface{}) error {
 	switch v := v.(type) {
 	case nil:
 		return w.string("")
@@ -93,7 +96,8 @@ func (w *Writer) writeArg(v interface{}) error {
 		}
 		return w.int(0)
 	case time.Time:
-		return w.string(v.Format(time.RFC3339Nano))
+		w.numBuf = v.AppendFormat(w.numBuf[:0], time.RFC3339Nano)
+		return w.bytes(w.numBuf)
 	case encoding.BinaryMarshaler:
 		b, err := v.MarshalBinary()
 		if err != nil {
@@ -107,18 +111,15 @@ func (w *Writer) writeArg(v interface{}) error {
 }
 
 func (w *Writer) bytes(b []byte) error {
-	err := w.wr.WriteByte(StringReply)
-	if err != nil {
+	if err := w.WriteByte(StringReply); err != nil {
 		return err
 	}
 
-	err = w.writeLen(len(b))
-	if err != nil {
+	if err := w.writeLen(len(b)); err != nil {
 		return err
 	}
 
-	_, err = w.wr.Write(b)
-	if err != nil {
+	if _, err := w.Write(b); err != nil {
 		return err
 	}
 
@@ -145,21 +146,8 @@ func (w *Writer) float(f float64) error {
 }
 
 func (w *Writer) crlf() error {
-	err := w.wr.WriteByte('\r')
-	if err != nil {
+	if err := w.WriteByte('\r'); err != nil {
 		return err
 	}
-	return w.wr.WriteByte('\n')
-}
-
-func (w *Writer) Buffered() int {
-	return w.wr.Buffered()
-}
-
-func (w *Writer) Reset(wr io.Writer) {
-	w.wr.Reset(wr)
-}
-
-func (w *Writer) Flush() error {
-	return w.wr.Flush()
+	return w.WriteByte('\n')
 }
diff --git a/vendor/github.com/go-redis/redis/v8/internal/rand/rand.go b/vendor/github.com/go-redis/redis/v8/internal/rand/rand.go
new file mode 100644
index 0000000000..40676f3cb6
--- /dev/null
+++ b/vendor/github.com/go-redis/redis/v8/internal/rand/rand.go
@@ -0,0 +1,45 @@
+package rand
+
+import (
+	"math/rand"
+	"sync"
+)
+
+// Int returns a non-negative pseudo-random int.
+func Int() int { return pseudo.Int() }
+
+// Intn returns, as an int, a non-negative pseudo-random number in [0,n).
+// It panics if n <= 0.
+func Intn(n int) int { return pseudo.Intn(n) }
+
+// Int63n returns, as an int64, a non-negative pseudo-random number in [0,n).
+// It panics if n <= 0.
+func Int63n(n int64) int64 { return pseudo.Int63n(n) }
+
+// Perm returns, as a slice of n ints, a pseudo-random permutation of the integers [0,n).
+func Perm(n int) []int { return pseudo.Perm(n) }
+
+// Seed uses the provided seed value to initialize the default Source to a
+// deterministic state. If Seed is not called, the generator behaves as if
+// seeded by Seed(1).
+func Seed(n int64) { pseudo.Seed(n) }
+
+var pseudo = rand.New(&source{src: rand.NewSource(1)})
+
+type source struct {
+	src rand.Source
+	mu  sync.Mutex
+}
+
+func (s *source) Int63() int64 {
+	s.mu.Lock()
+	n := s.src.Int63()
+	s.mu.Unlock()
+	return n
+}
+
+func (s *source) Seed(seed int64) {
+	s.mu.Lock()
+	s.src.Seed(seed)
+	s.mu.Unlock()
+}
diff --git a/vendor/github.com/go-redis/redis/v8/internal/safe.go b/vendor/github.com/go-redis/redis/v8/internal/safe.go
new file mode 100644
index 0000000000..862ff0eb3a
--- /dev/null
+++ b/vendor/github.com/go-redis/redis/v8/internal/safe.go
@@ -0,0 +1,11 @@
+// +build appengine
+
+package internal
+
+func String(b []byte) string {
+	return string(b)
+}
+
+func Bytes(s string) []byte {
+	return []byte(s)
+}
diff --git a/vendor/github.com/go-redis/redis/v8/internal/unsafe.go b/vendor/github.com/go-redis/redis/v8/internal/unsafe.go
new file mode 100644
index 0000000000..4bc79701f4
--- /dev/null
+++ b/vendor/github.com/go-redis/redis/v8/internal/unsafe.go
@@ -0,0 +1,20 @@
+// +build !appengine
+
+package internal
+
+import "unsafe"
+
+// String converts byte slice to string.
+func String(b []byte) string {
+	return *(*string)(unsafe.Pointer(&b))
+}
+
+// Bytes converts string to byte slice.
+func Bytes(s string) []byte {
+	return *(*[]byte)(unsafe.Pointer(
+		&struct {
+			string
+			Cap int
+		}{s, len(s)},
+	))
+}
diff --git a/vendor/github.com/go-redis/redis/v8/internal/util.go b/vendor/github.com/go-redis/redis/v8/internal/util.go
new file mode 100644
index 0000000000..4d7921bf32
--- /dev/null
+++ b/vendor/github.com/go-redis/redis/v8/internal/util.go
@@ -0,0 +1,73 @@
+package internal
+
+import (
+	"context"
+	"time"
+
+	"github.com/go-redis/redis/v8/internal/proto"
+	"github.com/go-redis/redis/v8/internal/util"
+	"go.opentelemetry.io/otel"
+	"go.opentelemetry.io/otel/trace"
+)
+
+func Sleep(ctx context.Context, dur time.Duration) error {
+	return WithSpan(ctx, "time.Sleep", func(ctx context.Context, span trace.Span) error {
+		t := time.NewTimer(dur)
+		defer t.Stop()
+
+		select {
+		case <-t.C:
+			return nil
+		case <-ctx.Done():
+			return ctx.Err()
+		}
+	})
+}
+
+func ToLower(s string) string {
+	if isLower(s) {
+		return s
+	}
+
+	b := make([]byte, len(s))
+	for i := range b {
+		c := s[i]
+		if c >= 'A' && c <= 'Z' {
+			c += 'a' - 'A'
+		}
+		b[i] = c
+	}
+	return util.BytesToString(b)
+}
+
+func isLower(s string) bool {
+	for i := 0; i < len(s); i++ {
+		c := s[i]
+		if c >= 'A' && c <= 'Z' {
+			return false
+		}
+	}
+	return true
+}
+
+//------------------------------------------------------------------------------
+
+var tracer = otel.Tracer("github.com/go-redis/redis")
+
+func WithSpan(ctx context.Context, name string, fn func(context.Context, trace.Span) error) error {
+	if span := trace.SpanFromContext(ctx); !span.IsRecording() {
+		return fn(ctx, span)
+	}
+
+	ctx, span := tracer.Start(ctx, name)
+	defer span.End()
+
+	return fn(ctx, span)
+}
+
+func RecordError(ctx context.Context, span trace.Span, err error) error {
+	if err != proto.Nil {
+		span.RecordError(err)
+	}
+	return err
+}
diff --git a/vendor/github.com/go-redis/redis/v7/internal/util/safe.go b/vendor/github.com/go-redis/redis/v8/internal/util/safe.go
index 1b3060ebc2..1b3060ebc2 100644
--- a/vendor/github.com/go-redis/redis/v7/internal/util/safe.go
+++ b/vendor/github.com/go-redis/redis/v8/internal/util/safe.go
diff --git a/vendor/github.com/go-redis/redis/v7/internal/util/strconv.go b/vendor/github.com/go-redis/redis/v8/internal/util/strconv.go
index db5033802a..db5033802a 100644
--- a/vendor/github.com/go-redis/redis/v7/internal/util/strconv.go
+++ b/vendor/github.com/go-redis/redis/v8/internal/util/strconv.go
diff --git a/vendor/github.com/go-redis/redis/v7/internal/util/unsafe.go b/vendor/github.com/go-redis/redis/v8/internal/util/unsafe.go
index c9868aac2b..c9868aac2b 100644
--- a/vendor/github.com/go-redis/redis/v7/internal/util/unsafe.go
+++ b/vendor/github.com/go-redis/redis/v8/internal/util/unsafe.go
diff --git a/vendor/github.com/go-redis/redis/v7/iterator.go b/vendor/github.com/go-redis/redis/v8/iterator.go
index f9d3aab6d2..2f8bc2beda 100644
--- a/vendor/github.com/go-redis/redis/v7/iterator.go
+++ b/vendor/github.com/go-redis/redis/v8/iterator.go
@@ -1,6 +1,7 @@
 package redis
 
 import (
+	"context"
 	"sync"
 )
 
@@ -21,7 +22,7 @@ func (it *ScanIterator) Err() error {
 }
 
 // Next advances the cursor and returns true if more values can be read.
-func (it *ScanIterator) Next() bool {
+func (it *ScanIterator) Next(ctx context.Context) bool {
 	it.mu.Lock()
 	defer it.mu.Unlock()
 
@@ -43,13 +44,14 @@ func (it *ScanIterator) Next() bool {
 		}
 
 		// Fetch next page.
-		if it.cmd.args[0] == "scan" {
+		switch it.cmd.args[0] {
+		case "scan", "qscan":
 			it.cmd.args[1] = it.cmd.cursor
-		} else {
+		default:
 			it.cmd.args[2] = it.cmd.cursor
 		}
 
-		err := it.cmd.process(it.cmd)
+		err := it.cmd.process(ctx, it.cmd)
 		if err != nil {
 			return false
 		}
diff --git a/vendor/github.com/go-redis/redis/v7/options.go b/vendor/github.com/go-redis/redis/v8/options.go
index 47dcc29bf3..7a02002401 100644
--- a/vendor/github.com/go-redis/redis/v7/options.go
+++ b/vendor/github.com/go-redis/redis/v8/options.go
@@ -12,7 +12,10 @@ import (
 	"strings"
 	"time"
 
-	"github.com/go-redis/redis/v7/internal/pool"
+	"github.com/go-redis/redis/v8/internal"
+	"github.com/go-redis/redis/v8/internal/pool"
+	"go.opentelemetry.io/otel/label"
+	"go.opentelemetry.io/otel/trace"
 )
 
 // Limiter is the interface of a rate limiter or a circuit breaker.
@@ -26,6 +29,7 @@ type Limiter interface {
 	ReportResult(result error)
 }
 
+// Options keeps the settings to setup redis connection.
 type Options struct {
 	// The network type, either tcp or unix.
 	// Default is tcp.
@@ -38,21 +42,23 @@ type Options struct {
 	Dialer func(ctx context.Context, network, addr string) (net.Conn, error)
 
 	// Hook that is called when new connection is established.
-	OnConnect func(*Conn) error
+	OnConnect func(ctx context.Context, cn *Conn) error
 
-	// Use the specified Username to authenticate the current connection with one of the connections defined in the ACL
-	// list when connecting to a Redis 6.0 instance, or greater, that is using the Redis ACL system.
+	// Use the specified Username to authenticate the current connection
+	// with one of the connections defined in the ACL list when connecting
+	// to a Redis 6.0 instance, or greater, that is using the Redis ACL system.
 	Username string
-
 	// Optional password. Must match the password specified in the
 	// requirepass server configuration option (if connecting to a Redis 5.0 instance, or lower),
-	// or the User Password when connecting to a Redis 6.0 instance, or greater, that is using the Redis ACL system.
+	// or the User Password when connecting to a Redis 6.0 instance, or greater,
+	// that is using the Redis ACL system.
 	Password string
+
 	// Database to be selected after connecting to the server.
 	DB int
 
 	// Maximum number of retries before giving up.
-	// Default is to not retry failed commands.
+	// Default is 3 retries; -1 (not 0) disables retries.
 	MaxRetries int
 	// Minimum backoff between each retry.
 	// Default is 8 milliseconds; -1 disables backoff.
@@ -117,6 +123,9 @@ func (opt *Options) init() {
 			opt.Network = "tcp"
 		}
 	}
+	if opt.DialTimeout == 0 {
+		opt.DialTimeout = 5 * time.Second
+	}
 	if opt.Dialer == nil {
 		opt.Dialer = func(ctx context.Context, network, addr string) (net.Conn, error) {
 			netDialer := &net.Dialer{
@@ -132,9 +141,6 @@ func (opt *Options) init() {
 	if opt.PoolSize == 0 {
 		opt.PoolSize = 10 * runtime.NumCPU()
 	}
-	if opt.DialTimeout == 0 {
-		opt.DialTimeout = 5 * time.Second
-	}
 	switch opt.ReadTimeout {
 	case -1:
 		opt.ReadTimeout = 0
@@ -159,6 +165,8 @@ func (opt *Options) init() {
 
 	if opt.MaxRetries == -1 {
 		opt.MaxRetries = 0
+	} else if opt.MaxRetries == 0 {
+		opt.MaxRetries = 3
 	}
 	switch opt.MinRetryBackoff {
 	case -1:
@@ -180,26 +188,35 @@ func (opt *Options) clone() *Options {
 }
 
 // ParseURL parses an URL into Options that can be used to connect to Redis.
+// Scheme is required.
+// There are two connection types: by tcp socket and by unix socket.
+// Tcp connection:
+// 		redis://<user>:<password>@<host>:<port>/<db_number>
+// Unix connection:
+//		unix://<user>:<password>@</path/to/redis.sock>?db=<db_number>
 func ParseURL(redisURL string) (*Options, error) {
-	o := &Options{Network: "tcp"}
 	u, err := url.Parse(redisURL)
 	if err != nil {
 		return nil, err
 	}
 
-	if u.Scheme != "redis" && u.Scheme != "rediss" {
-		return nil, errors.New("invalid redis URL scheme: " + u.Scheme)
+	switch u.Scheme {
+	case "redis", "rediss":
+		return setupTCPConn(u)
+	case "unix":
+		return setupUnixConn(u)
+	default:
+		return nil, fmt.Errorf("redis: invalid URL scheme: %s", u.Scheme)
 	}
+}
 
-	if u.User != nil {
-		o.Username = u.User.Username()
-		if p, ok := u.User.Password(); ok {
-			o.Password = p
-		}
-	}
+func setupTCPConn(u *url.URL) (*Options, error) {
+	o := &Options{Network: "tcp"}
+
+	o.Username, o.Password = getUserPassword(u)
 
 	if len(u.Query()) > 0 {
-		return nil, errors.New("no options supported")
+		return nil, errors.New("redis: no options supported")
 	}
 
 	h, p, err := net.SplitHostPort(u.Host)
@@ -222,22 +239,73 @@ func ParseURL(redisURL string) (*Options, error) {
 		o.DB = 0
 	case 1:
 		if o.DB, err = strconv.Atoi(f[0]); err != nil {
-			return nil, fmt.Errorf("invalid redis database number: %q", f[0])
+			return nil, fmt.Errorf("redis: invalid database number: %q", f[0])
 		}
 	default:
-		return nil, errors.New("invalid redis URL path: " + u.Path)
+		return nil, fmt.Errorf("redis: invalid URL path: %s", u.Path)
 	}
 
 	if u.Scheme == "rediss" {
 		o.TLSConfig = &tls.Config{ServerName: h}
 	}
+
+	return o, nil
+}
+
+func setupUnixConn(u *url.URL) (*Options, error) {
+	o := &Options{
+		Network: "unix",
+	}
+
+	if strings.TrimSpace(u.Path) == "" { // path is required with unix connection
+		return nil, errors.New("redis: empty unix socket path")
+	}
+	o.Addr = u.Path
+
+	o.Username, o.Password = getUserPassword(u)
+
+	dbStr := u.Query().Get("db")
+	if dbStr == "" {
+		return o, nil // if database is not set, connect to 0 db.
+	}
+
+	db, err := strconv.Atoi(dbStr)
+	if err != nil {
+		return nil, fmt.Errorf("redis: invalid database number: %w", err)
+	}
+	o.DB = db
+
 	return o, nil
 }
 
+func getUserPassword(u *url.URL) (string, string) {
+	var user, password string
+	if u.User != nil {
+		user = u.User.Username()
+		if p, ok := u.User.Password(); ok {
+			password = p
+		}
+	}
+	return user, password
+}
+
 func newConnPool(opt *Options) *pool.ConnPool {
 	return pool.NewConnPool(&pool.Options{
 		Dialer: func(ctx context.Context) (net.Conn, error) {
-			return opt.Dialer(ctx, opt.Network, opt.Addr)
+			var conn net.Conn
+			err := internal.WithSpan(ctx, "redis.dial", func(ctx context.Context, span trace.Span) error {
+				span.SetAttributes(
+					label.String("db.connection_string", opt.Addr),
+				)
+
+				var err error
+				conn, err = opt.Dialer(ctx, opt.Network, opt.Addr)
+				if err != nil {
+					_ = internal.RecordError(ctx, span, err)
+				}
+				return err
+			})
+			return conn, err
 		},
 		PoolSize:           opt.PoolSize,
 		MinIdleConns:       opt.MinIdleConns,
diff --git a/vendor/github.com/go-redis/redis/v7/pipeline.go b/vendor/github.com/go-redis/redis/v8/pipeline.go
index d48566a787..c6ec340998 100644
--- a/vendor/github.com/go-redis/redis/v7/pipeline.go
+++ b/vendor/github.com/go-redis/redis/v8/pipeline.go
@@ -4,7 +4,7 @@ import (
 	"context"
 	"sync"
 
-	"github.com/go-redis/redis/v7/internal/pool"
+	"github.com/go-redis/redis/v8/internal/pool"
 )
 
 type pipelineExecer func(context.Context, []Cmder) error
@@ -24,12 +24,11 @@ type pipelineExecer func(context.Context, []Cmder) error
 // depends of your batch size and/or use TxPipeline.
 type Pipeliner interface {
 	StatefulCmdable
-	Do(args ...interface{}) *Cmd
-	Process(cmd Cmder) error
+	Do(ctx context.Context, args ...interface{}) *Cmd
+	Process(ctx context.Context, cmd Cmder) error
 	Close() error
 	Discard() error
-	Exec() ([]Cmder, error)
-	ExecContext(ctx context.Context) ([]Cmder, error)
+	Exec(ctx context.Context) ([]Cmder, error)
 }
 
 var _ Pipeliner = (*Pipeline)(nil)
@@ -54,14 +53,14 @@ func (c *Pipeline) init() {
 	c.statefulCmdable = c.Process
 }
 
-func (c *Pipeline) Do(args ...interface{}) *Cmd {
-	cmd := NewCmd(args...)
-	_ = c.Process(cmd)
+func (c *Pipeline) Do(ctx context.Context, args ...interface{}) *Cmd {
+	cmd := NewCmd(ctx, args...)
+	_ = c.Process(ctx, cmd)
 	return cmd
 }
 
 // Process queues the cmd for later execution.
-func (c *Pipeline) Process(cmd Cmder) error {
+func (c *Pipeline) Process(ctx context.Context, cmd Cmder) error {
 	c.mu.Lock()
 	c.cmds = append(c.cmds, cmd)
 	c.mu.Unlock()
@@ -98,11 +97,7 @@ func (c *Pipeline) discard() error {
 //
 // Exec always returns list of commands and error of the first failed
 // command if any.
-func (c *Pipeline) Exec() ([]Cmder, error) {
-	return c.ExecContext(c.ctx)
-}
-
-func (c *Pipeline) ExecContext(ctx context.Context) ([]Cmder, error) {
+func (c *Pipeline) Exec(ctx context.Context) ([]Cmder, error) {
 	c.mu.Lock()
 	defer c.mu.Unlock()
 
@@ -120,11 +115,11 @@ func (c *Pipeline) ExecContext(ctx context.Context) ([]Cmder, error) {
 	return cmds, c.exec(ctx, cmds)
 }
 
-func (c *Pipeline) Pipelined(fn func(Pipeliner) error) ([]Cmder, error) {
+func (c *Pipeline) Pipelined(ctx context.Context, fn func(Pipeliner) error) ([]Cmder, error) {
 	if err := fn(c); err != nil {
 		return nil, err
 	}
-	cmds, err := c.Exec()
+	cmds, err := c.Exec(ctx)
 	_ = c.Close()
 	return cmds, err
 }
@@ -133,8 +128,8 @@ func (c *Pipeline) Pipeline() Pipeliner {
 	return c
 }
 
-func (c *Pipeline) TxPipelined(fn func(Pipeliner) error) ([]Cmder, error) {
-	return c.Pipelined(fn)
+func (c *Pipeline) TxPipelined(ctx context.Context, fn func(Pipeliner) error) ([]Cmder, error) {
+	return c.Pipelined(ctx, fn)
 }
 
 func (c *Pipeline) TxPipeline() Pipeliner {
diff --git a/vendor/github.com/go-redis/redis/v7/pubsub.go b/vendor/github.com/go-redis/redis/v8/pubsub.go
index 26cde242be..c56270b443 100644
--- a/vendor/github.com/go-redis/redis/v7/pubsub.go
+++ b/vendor/github.com/go-redis/redis/v8/pubsub.go
@@ -8,12 +8,15 @@ import (
 	"sync"
 	"time"
 
-	"github.com/go-redis/redis/v7/internal"
-	"github.com/go-redis/redis/v7/internal/pool"
-	"github.com/go-redis/redis/v7/internal/proto"
+	"github.com/go-redis/redis/v8/internal"
+	"github.com/go-redis/redis/v8/internal/pool"
+	"github.com/go-redis/redis/v8/internal/proto"
 )
 
-const pingTimeout = 30 * time.Second
+const (
+	pingTimeout     = time.Second
+	chanSendTimeout = time.Minute
+)
 
 var errPingTimeout = errors.New("redis: ping timeout")
 
@@ -26,7 +29,7 @@ var errPingTimeout = errors.New("redis: ping timeout")
 type PubSub struct {
 	opt *Options
 
-	newConn   func([]string) (*pool.Conn, error)
+	newConn   func(ctx context.Context, channels []string) (*pool.Conn, error)
 	closeConn func(*pool.Conn) error
 
 	mu       sync.Mutex
@@ -55,14 +58,14 @@ func (c *PubSub) init() {
 	c.exit = make(chan struct{})
 }
 
-func (c *PubSub) connWithLock() (*pool.Conn, error) {
+func (c *PubSub) connWithLock(ctx context.Context) (*pool.Conn, error) {
 	c.mu.Lock()
-	cn, err := c.conn(nil)
+	cn, err := c.conn(ctx, nil)
 	c.mu.Unlock()
 	return cn, err
 }
 
-func (c *PubSub) conn(newChannels []string) (*pool.Conn, error) {
+func (c *PubSub) conn(ctx context.Context, newChannels []string) (*pool.Conn, error) {
 	if c.closed {
 		return nil, pool.ErrClosed
 	}
@@ -73,12 +76,12 @@ func (c *PubSub) conn(newChannels []string) (*pool.Conn, error) {
 	channels := mapKeys(c.channels)
 	channels = append(channels, newChannels...)
 
-	cn, err := c.newConn(channels)
+	cn, err := c.newConn(ctx, channels)
 	if err != nil {
 		return nil, err
 	}
 
-	if err := c.resubscribe(cn); err != nil {
+	if err := c.resubscribe(ctx, cn); err != nil {
 		_ = c.closeConn(cn)
 		return nil, err
 	}
@@ -93,15 +96,15 @@ func (c *PubSub) writeCmd(ctx context.Context, cn *pool.Conn, cmd Cmder) error {
 	})
 }
 
-func (c *PubSub) resubscribe(cn *pool.Conn) error {
+func (c *PubSub) resubscribe(ctx context.Context, cn *pool.Conn) error {
 	var firstErr error
 
 	if len(c.channels) > 0 {
-		firstErr = c._subscribe(cn, "subscribe", mapKeys(c.channels))
+		firstErr = c._subscribe(ctx, cn, "subscribe", mapKeys(c.channels))
 	}
 
 	if len(c.patterns) > 0 {
-		err := c._subscribe(cn, "psubscribe", mapKeys(c.patterns))
+		err := c._subscribe(ctx, cn, "psubscribe", mapKeys(c.patterns))
 		if err != nil && firstErr == nil {
 			firstErr = err
 		}
@@ -121,35 +124,40 @@ func mapKeys(m map[string]struct{}) []string {
 }
 
 func (c *PubSub) _subscribe(
-	cn *pool.Conn, redisCmd string, channels []string,
+	ctx context.Context, cn *pool.Conn, redisCmd string, channels []string,
 ) error {
 	args := make([]interface{}, 0, 1+len(channels))
 	args = append(args, redisCmd)
 	for _, channel := range channels {
 		args = append(args, channel)
 	}
-	cmd := NewSliceCmd(args...)
-	return c.writeCmd(context.TODO(), cn, cmd)
+	cmd := NewSliceCmd(ctx, args...)
+	return c.writeCmd(ctx, cn, cmd)
 }
 
-func (c *PubSub) releaseConnWithLock(cn *pool.Conn, err error, allowTimeout bool) {
+func (c *PubSub) releaseConnWithLock(
+	ctx context.Context,
+	cn *pool.Conn,
+	err error,
+	allowTimeout bool,
+) {
 	c.mu.Lock()
-	c.releaseConn(cn, err, allowTimeout)
+	c.releaseConn(ctx, cn, err, allowTimeout)
 	c.mu.Unlock()
 }
 
-func (c *PubSub) releaseConn(cn *pool.Conn, err error, allowTimeout bool) {
+func (c *PubSub) releaseConn(ctx context.Context, cn *pool.Conn, err error, allowTimeout bool) {
 	if c.cn != cn {
 		return
 	}
 	if isBadConn(err, allowTimeout) {
-		c.reconnect(err)
+		c.reconnect(ctx, err)
 	}
 }
 
-func (c *PubSub) reconnect(reason error) {
+func (c *PubSub) reconnect(ctx context.Context, reason error) {
 	_ = c.closeTheCn(reason)
-	_, _ = c.conn(nil)
+	_, _ = c.conn(ctx, nil)
 }
 
 func (c *PubSub) closeTheCn(reason error) error {
@@ -157,7 +165,7 @@ func (c *PubSub) closeTheCn(reason error) error {
 		return nil
 	}
 	if !c.closed {
-		internal.Logger.Printf("redis: discarding bad PubSub connection: %s", reason)
+		internal.Logger.Printf(c.getContext(), "redis: discarding bad PubSub connection: %s", reason)
 	}
 	err := c.closeConn(c.cn)
 	c.cn = nil
@@ -179,11 +187,11 @@ func (c *PubSub) Close() error {
 
 // Subscribe the client to the specified channels. It returns
 // empty subscription if there are no channels.
-func (c *PubSub) Subscribe(channels ...string) error {
+func (c *PubSub) Subscribe(ctx context.Context, channels ...string) error {
 	c.mu.Lock()
 	defer c.mu.Unlock()
 
-	err := c.subscribe("subscribe", channels...)
+	err := c.subscribe(ctx, "subscribe", channels...)
 	if c.channels == nil {
 		c.channels = make(map[string]struct{})
 	}
@@ -195,11 +203,11 @@ func (c *PubSub) Subscribe(channels ...string) error {
 
 // PSubscribe the client to the given patterns. It returns
 // empty subscription if there are no patterns.
-func (c *PubSub) PSubscribe(patterns ...string) error {
+func (c *PubSub) PSubscribe(ctx context.Context, patterns ...string) error {
 	c.mu.Lock()
 	defer c.mu.Unlock()
 
-	err := c.subscribe("psubscribe", patterns...)
+	err := c.subscribe(ctx, "psubscribe", patterns...)
 	if c.patterns == nil {
 		c.patterns = make(map[string]struct{})
 	}
@@ -211,55 +219,55 @@ func (c *PubSub) PSubscribe(patterns ...string) error {
 
 // Unsubscribe the client from the given channels, or from all of
 // them if none is given.
-func (c *PubSub) Unsubscribe(channels ...string) error {
+func (c *PubSub) Unsubscribe(ctx context.Context, channels ...string) error {
 	c.mu.Lock()
 	defer c.mu.Unlock()
 
 	for _, channel := range channels {
 		delete(c.channels, channel)
 	}
-	err := c.subscribe("unsubscribe", channels...)
+	err := c.subscribe(ctx, "unsubscribe", channels...)
 	return err
 }
 
 // PUnsubscribe the client from the given patterns, or from all of
 // them if none is given.
-func (c *PubSub) PUnsubscribe(patterns ...string) error {
+func (c *PubSub) PUnsubscribe(ctx context.Context, patterns ...string) error {
 	c.mu.Lock()
 	defer c.mu.Unlock()
 
 	for _, pattern := range patterns {
 		delete(c.patterns, pattern)
 	}
-	err := c.subscribe("punsubscribe", patterns...)
+	err := c.subscribe(ctx, "punsubscribe", patterns...)
 	return err
 }
 
-func (c *PubSub) subscribe(redisCmd string, channels ...string) error {
-	cn, err := c.conn(channels)
+func (c *PubSub) subscribe(ctx context.Context, redisCmd string, channels ...string) error {
+	cn, err := c.conn(ctx, channels)
 	if err != nil {
 		return err
 	}
 
-	err = c._subscribe(cn, redisCmd, channels)
-	c.releaseConn(cn, err, false)
+	err = c._subscribe(ctx, cn, redisCmd, channels)
+	c.releaseConn(ctx, cn, err, false)
 	return err
 }
 
-func (c *PubSub) Ping(payload ...string) error {
+func (c *PubSub) Ping(ctx context.Context, payload ...string) error {
 	args := []interface{}{"ping"}
 	if len(payload) == 1 {
 		args = append(args, payload[0])
 	}
-	cmd := NewCmd(args...)
+	cmd := NewCmd(ctx, args...)
 
-	cn, err := c.connWithLock()
+	cn, err := c.connWithLock(ctx)
 	if err != nil {
 		return err
 	}
 
-	err = c.writeCmd(context.TODO(), cn, cmd)
-	c.releaseConnWithLock(cn, err, false)
+	err = c.writeCmd(ctx, cn, cmd)
+	c.releaseConnWithLock(ctx, cn, err, false)
 	return err
 }
 
@@ -279,9 +287,10 @@ func (m *Subscription) String() string {
 
 // Message received as result of a PUBLISH command issued by another client.
 type Message struct {
-	Channel string
-	Pattern string
-	Payload string
+	Channel      string
+	Pattern      string
+	Payload      string
+	PayloadSlice []string
 }
 
 func (m *Message) String() string {
@@ -317,10 +326,24 @@ func (c *PubSub) newMessage(reply interface{}) (interface{}, error) {
 				Count:   int(reply[2].(int64)),
 			}, nil
 		case "message":
-			return &Message{
-				Channel: reply[1].(string),
-				Payload: reply[2].(string),
-			}, nil
+			switch payload := reply[2].(type) {
+			case string:
+				return &Message{
+					Channel: reply[1].(string),
+					Payload: payload,
+				}, nil
+			case []interface{}:
+				ss := make([]string, len(payload))
+				for i, s := range payload {
+					ss[i] = s.(string)
+				}
+				return &Message{
+					Channel:      reply[1].(string),
+					PayloadSlice: ss,
+				}, nil
+			default:
+				return nil, fmt.Errorf("redis: unsupported pubsub message payload: %T", payload)
+			}
 		case "pmessage":
 			return &Message{
 				Pattern: reply[1].(string),
@@ -342,21 +365,21 @@ func (c *PubSub) newMessage(reply interface{}) (interface{}, error) {
 // ReceiveTimeout acts like Receive but returns an error if message
 // is not received in time. This is low-level API and in most cases
 // Channel should be used instead.
-func (c *PubSub) ReceiveTimeout(timeout time.Duration) (interface{}, error) {
+func (c *PubSub) ReceiveTimeout(ctx context.Context, timeout time.Duration) (interface{}, error) {
 	if c.cmd == nil {
-		c.cmd = NewCmd()
+		c.cmd = NewCmd(ctx)
 	}
 
-	cn, err := c.connWithLock()
+	cn, err := c.connWithLock(ctx)
 	if err != nil {
 		return nil, err
 	}
 
-	err = cn.WithReader(context.TODO(), timeout, func(rd *proto.Reader) error {
+	err = cn.WithReader(ctx, timeout, func(rd *proto.Reader) error {
 		return c.cmd.readReply(rd)
 	})
 
-	c.releaseConnWithLock(cn, err, timeout > 0)
+	c.releaseConnWithLock(ctx, cn, err, timeout > 0)
 	if err != nil {
 		return nil, err
 	}
@@ -367,16 +390,16 @@ func (c *PubSub) ReceiveTimeout(timeout time.Duration) (interface{}, error) {
 // Receive returns a message as a Subscription, Message, Pong or error.
 // See PubSub example for details. This is low-level API and in most cases
 // Channel should be used instead.
-func (c *PubSub) Receive() (interface{}, error) {
-	return c.ReceiveTimeout(0)
+func (c *PubSub) Receive(ctx context.Context) (interface{}, error) {
+	return c.ReceiveTimeout(ctx, 0)
 }
 
 // ReceiveMessage returns a Message or error ignoring Subscription and Pong
 // messages. This is low-level API and in most cases Channel should be used
 // instead.
-func (c *PubSub) ReceiveMessage() (*Message, error) {
+func (c *PubSub) ReceiveMessage(ctx context.Context) (*Message, error) {
 	for {
-		msg, err := c.Receive()
+		msg, err := c.Receive(ctx)
 		if err != nil {
 			return nil, err
 		}
@@ -429,7 +452,7 @@ func (c *PubSub) ChannelSize(size int) <-chan *Message {
 // reconnections.
 //
 // ChannelWithSubscriptions can not be used together with Channel or ChannelSize.
-func (c *PubSub) ChannelWithSubscriptions(size int) <-chan interface{} {
+func (c *PubSub) ChannelWithSubscriptions(ctx context.Context, size int) <-chan interface{} {
 	c.chOnce.Do(func() {
 		c.initPing()
 		c.initAllChan(size)
@@ -445,10 +468,18 @@ func (c *PubSub) ChannelWithSubscriptions(size int) <-chan interface{} {
 	return c.allCh
 }
 
+func (c *PubSub) getContext() context.Context {
+	if c.cmd != nil {
+		return c.cmd.ctx
+	}
+	return context.Background()
+}
+
 func (c *PubSub) initPing() {
+	ctx := context.TODO()
 	c.ping = make(chan struct{}, 1)
 	go func() {
-		timer := time.NewTimer(pingTimeout)
+		timer := time.NewTimer(time.Minute)
 		timer.Stop()
 
 		healthy := true
@@ -461,7 +492,7 @@ func (c *PubSub) initPing() {
 					<-timer.C
 				}
 			case <-timer.C:
-				pingErr := c.Ping()
+				pingErr := c.Ping(ctx)
 				if healthy {
 					healthy = false
 				} else {
@@ -469,7 +500,7 @@ func (c *PubSub) initPing() {
 						pingErr = errPingTimeout
 					}
 					c.mu.Lock()
-					c.reconnect(pingErr)
+					c.reconnect(ctx, pingErr)
 					healthy = true
 					c.mu.Unlock()
 				}
@@ -482,21 +513,22 @@ func (c *PubSub) initPing() {
 
 // initMsgChan must be in sync with initAllChan.
 func (c *PubSub) initMsgChan(size int) {
+	ctx := context.TODO()
 	c.msgCh = make(chan *Message, size)
 	go func() {
-		timer := time.NewTimer(pingTimeout)
+		timer := time.NewTimer(time.Minute)
 		timer.Stop()
 
 		var errCount int
 		for {
-			msg, err := c.Receive()
+			msg, err := c.Receive(ctx)
 			if err != nil {
 				if err == pool.ErrClosed {
 					close(c.msgCh)
 					return
 				}
 				if errCount > 0 {
-					time.Sleep(c.retryBackoff(errCount))
+					time.Sleep(100 * time.Millisecond)
 				}
 				errCount++
 				continue
@@ -516,7 +548,7 @@ func (c *PubSub) initMsgChan(size int) {
 			case *Pong:
 				// Ignore.
 			case *Message:
-				timer.Reset(pingTimeout)
+				timer.Reset(chanSendTimeout)
 				select {
 				case c.msgCh <- msg:
 					if !timer.Stop() {
@@ -524,10 +556,14 @@ func (c *PubSub) initMsgChan(size int) {
 					}
 				case <-timer.C:
 					internal.Logger.Printf(
-						"redis: %s channel is full for %s (message is dropped)", c, pingTimeout)
+						c.getContext(),
+						"redis: %s channel is full for %s (message is dropped)",
+						c,
+						chanSendTimeout,
+					)
 				}
 			default:
-				internal.Logger.Printf("redis: unknown message type: %T", msg)
+				internal.Logger.Printf(c.getContext(), "redis: unknown message type: %T", msg)
 			}
 		}
 	}()
@@ -535,6 +571,7 @@ func (c *PubSub) initMsgChan(size int) {
 
 // initAllChan must be in sync with initMsgChan.
 func (c *PubSub) initAllChan(size int) {
+	ctx := context.TODO()
 	c.allCh = make(chan interface{}, size)
 	go func() {
 		timer := time.NewTimer(pingTimeout)
@@ -542,14 +579,14 @@ func (c *PubSub) initAllChan(size int) {
 
 		var errCount int
 		for {
-			msg, err := c.Receive()
+			msg, err := c.Receive(ctx)
 			if err != nil {
 				if err == pool.ErrClosed {
 					close(c.allCh)
 					return
 				}
 				if errCount > 0 {
-					time.Sleep(c.retryBackoff(errCount))
+					time.Sleep(100 * time.Millisecond)
 				}
 				errCount++
 				continue
@@ -571,7 +608,7 @@ func (c *PubSub) initAllChan(size int) {
 			case *Message:
 				c.sendMessage(msg, timer)
 			default:
-				internal.Logger.Printf("redis: unknown message type: %T", msg)
+				internal.Logger.Printf(c.getContext(), "redis: unknown message type: %T", msg)
 			}
 		}
 	}()
@@ -586,10 +623,7 @@ func (c *PubSub) sendMessage(msg interface{}, timer *time.Timer) {
 		}
 	case <-timer.C:
 		internal.Logger.Printf(
+			c.getContext(),
 			"redis: %s channel is full for %s (message is dropped)", c, pingTimeout)
 	}
 }
-
-func (c *PubSub) retryBackoff(attempt int) time.Duration {
-	return internal.RetryBackoff(attempt, c.opt.MinRetryBackoff, c.opt.MaxRetryBackoff)
-}
diff --git a/vendor/github.com/go-redis/redis/v7/redis.go b/vendor/github.com/go-redis/redis/v8/redis.go
index 3d9dfed7db..712579d4ca 100644
--- a/vendor/github.com/go-redis/redis/v7/redis.go
+++ b/vendor/github.com/go-redis/redis/v8/redis.go
@@ -2,19 +2,22 @@ package redis
 
 import (
 	"context"
+	"errors"
 	"fmt"
-	"log"
+	"sync/atomic"
 	"time"
 
-	"github.com/go-redis/redis/v7/internal"
-	"github.com/go-redis/redis/v7/internal/pool"
-	"github.com/go-redis/redis/v7/internal/proto"
+	"github.com/go-redis/redis/v8/internal"
+	"github.com/go-redis/redis/v8/internal/pool"
+	"github.com/go-redis/redis/v8/internal/proto"
+	"go.opentelemetry.io/otel/label"
+	"go.opentelemetry.io/otel/trace"
 )
 
 // Nil reply returned by Redis when key does not exist.
 const Nil = proto.Nil
 
-func SetLogger(logger *log.Logger) {
+func SetLogger(logger internal.Logging) {
 	internal.Logger = logger
 }
 
@@ -49,92 +52,88 @@ func (hs *hooks) AddHook(hook Hook) {
 func (hs hooks) process(
 	ctx context.Context, cmd Cmder, fn func(context.Context, Cmder) error,
 ) error {
-	ctx, err := hs.beforeProcess(ctx, cmd)
-	if err != nil {
+	if len(hs.hooks) == 0 {
+		err := hs.withContext(ctx, func() error {
+			return fn(ctx, cmd)
+		})
 		cmd.SetErr(err)
 		return err
 	}
 
-	cmdErr := fn(ctx, cmd)
+	var hookIndex int
+	var retErr error
 
-	if err := hs.afterProcess(ctx, cmd); err != nil {
-		cmd.SetErr(err)
-		return err
+	for ; hookIndex < len(hs.hooks) && retErr == nil; hookIndex++ {
+		ctx, retErr = hs.hooks[hookIndex].BeforeProcess(ctx, cmd)
+		if retErr != nil {
+			cmd.SetErr(retErr)
+		}
 	}
 
-	return cmdErr
-}
-
-func (hs hooks) beforeProcess(ctx context.Context, cmd Cmder) (context.Context, error) {
-	for _, h := range hs.hooks {
-		var err error
-		ctx, err = h.BeforeProcess(ctx, cmd)
-		if err != nil {
-			return nil, err
-		}
+	if retErr == nil {
+		retErr = hs.withContext(ctx, func() error {
+			return fn(ctx, cmd)
+		})
+		cmd.SetErr(retErr)
 	}
-	return ctx, nil
-}
 
-func (hs hooks) afterProcess(ctx context.Context, cmd Cmder) error {
-	var firstErr error
-	for _, h := range hs.hooks {
-		err := h.AfterProcess(ctx, cmd)
-		if err != nil && firstErr == nil {
-			firstErr = err
+	for hookIndex--; hookIndex >= 0; hookIndex-- {
+		if err := hs.hooks[hookIndex].AfterProcess(ctx, cmd); err != nil {
+			retErr = err
+			cmd.SetErr(retErr)
 		}
 	}
-	return firstErr
+
+	return retErr
 }
 
 func (hs hooks) processPipeline(
 	ctx context.Context, cmds []Cmder, fn func(context.Context, []Cmder) error,
 ) error {
-	ctx, err := hs.beforeProcessPipeline(ctx, cmds)
-	if err != nil {
-		setCmdsErr(cmds, err)
+	if len(hs.hooks) == 0 {
+		err := hs.withContext(ctx, func() error {
+			return fn(ctx, cmds)
+		})
 		return err
 	}
 
-	cmdsErr := fn(ctx, cmds)
+	var hookIndex int
+	var retErr error
 
-	if err := hs.afterProcessPipeline(ctx, cmds); err != nil {
-		setCmdsErr(cmds, err)
-		return err
+	for ; hookIndex < len(hs.hooks) && retErr == nil; hookIndex++ {
+		ctx, retErr = hs.hooks[hookIndex].BeforeProcessPipeline(ctx, cmds)
+		if retErr != nil {
+			setCmdsErr(cmds, retErr)
+		}
 	}
 
-	return cmdsErr
-}
-
-func (hs hooks) beforeProcessPipeline(ctx context.Context, cmds []Cmder) (context.Context, error) {
-	for _, h := range hs.hooks {
-		var err error
-		ctx, err = h.BeforeProcessPipeline(ctx, cmds)
-		if err != nil {
-			return nil, err
-		}
+	if retErr == nil {
+		retErr = hs.withContext(ctx, func() error {
+			return fn(ctx, cmds)
+		})
 	}
-	return ctx, nil
-}
 
-func (hs hooks) afterProcessPipeline(ctx context.Context, cmds []Cmder) error {
-	var firstErr error
-	for _, h := range hs.hooks {
-		err := h.AfterProcessPipeline(ctx, cmds)
-		if err != nil && firstErr == nil {
-			firstErr = err
+	for hookIndex--; hookIndex >= 0; hookIndex-- {
+		if err := hs.hooks[hookIndex].AfterProcessPipeline(ctx, cmds); err != nil {
+			retErr = err
+			setCmdsErr(cmds, retErr)
 		}
 	}
-	return firstErr
+
+	return retErr
 }
 
 func (hs hooks) processTxPipeline(
 	ctx context.Context, cmds []Cmder, fn func(context.Context, []Cmder) error,
 ) error {
-	cmds = wrapMultiExec(cmds)
+	cmds = wrapMultiExec(ctx, cmds)
 	return hs.processPipeline(ctx, cmds, fn)
 }
 
+func (hs hooks) withContext(ctx context.Context, fn func() error) error {
+	return fn()
+}
+
 //------------------------------------------------------------------------------
 
 type baseClient struct {
@@ -201,6 +200,7 @@ func (c *baseClient) getConn(ctx context.Context) (*pool.Conn, error) {
 		}
 		return nil, err
 	}
+
 	return cn, nil
 }
 
@@ -210,10 +210,16 @@ func (c *baseClient) _getConn(ctx context.Context) (*pool.Conn, error) {
 		return nil, err
 	}
 
-	err = c.initConn(ctx, cn)
+	if cn.Inited {
+		return cn, nil
+	}
+
+	err = internal.WithSpan(ctx, "redis.init_conn", func(ctx context.Context, span trace.Span) error {
+		return c.initConn(ctx, cn)
+	})
 	if err != nil {
-		c.connPool.Remove(cn, err)
-		if err := internal.Unwrap(err); err != nil {
+		c.connPool.Remove(ctx, cn, err)
+		if err := errors.Unwrap(err); err != nil {
 			return nil, err
 		}
 		return nil, err
@@ -235,25 +241,24 @@ func (c *baseClient) initConn(ctx context.Context, cn *pool.Conn) error {
 		return nil
 	}
 
-	connPool := pool.NewSingleConnPool(nil)
-	connPool.SetConn(cn)
+	connPool := pool.NewSingleConnPool(c.connPool, cn)
 	conn := newConn(ctx, c.opt, connPool)
 
-	_, err := conn.Pipelined(func(pipe Pipeliner) error {
+	_, err := conn.Pipelined(ctx, func(pipe Pipeliner) error {
 		if c.opt.Password != "" {
 			if c.opt.Username != "" {
-				pipe.AuthACL(c.opt.Username, c.opt.Password)
+				pipe.AuthACL(ctx, c.opt.Username, c.opt.Password)
 			} else {
-				pipe.Auth(c.opt.Password)
+				pipe.Auth(ctx, c.opt.Password)
 			}
 		}
 
 		if c.opt.DB > 0 {
-			pipe.Select(c.opt.DB)
+			pipe.Select(ctx, c.opt.DB)
 		}
 
 		if c.opt.readOnly {
-			pipe.ReadOnly()
+			pipe.ReadOnly(ctx)
 		}
 
 		return nil
@@ -263,76 +268,107 @@ func (c *baseClient) initConn(ctx context.Context, cn *pool.Conn) error {
 	}
 
 	if c.opt.OnConnect != nil {
-		return c.opt.OnConnect(conn)
+		return c.opt.OnConnect(ctx, conn)
 	}
 	return nil
 }
 
-func (c *baseClient) releaseConn(cn *pool.Conn, err error) {
+func (c *baseClient) releaseConn(ctx context.Context, cn *pool.Conn, err error) {
 	if c.opt.Limiter != nil {
 		c.opt.Limiter.ReportResult(err)
 	}
 
 	if isBadConn(err, false) {
-		c.connPool.Remove(cn, err)
+		c.connPool.Remove(ctx, cn, err)
 	} else {
-		c.connPool.Put(cn)
+		c.connPool.Put(ctx, cn)
 	}
 }
 
 func (c *baseClient) withConn(
 	ctx context.Context, fn func(context.Context, *pool.Conn) error,
 ) error {
-	cn, err := c.getConn(ctx)
-	if err != nil {
-		return err
-	}
-	defer func() {
-		c.releaseConn(cn, err)
-	}()
+	return internal.WithSpan(ctx, "redis.with_conn", func(ctx context.Context, span trace.Span) error {
+		cn, err := c.getConn(ctx)
+		if err != nil {
+			return err
+		}
 
-	err = fn(ctx, cn)
-	return err
-}
+		if span.IsRecording() {
+			if remoteAddr := cn.RemoteAddr(); remoteAddr != nil {
+				span.SetAttributes(label.String("net.peer.ip", remoteAddr.String()))
+			}
+		}
 
-func (c *baseClient) process(ctx context.Context, cmd Cmder) error {
-	err := c._process(ctx, cmd)
-	if err != nil {
-		cmd.SetErr(err)
-		return err
-	}
-	return nil
+		defer func() {
+			c.releaseConn(ctx, cn, err)
+		}()
+
+		done := ctx.Done()
+		if done == nil {
+			err = fn(ctx, cn)
+			return err
+		}
+
+		errc := make(chan error, 1)
+		go func() { errc <- fn(ctx, cn) }()
+
+		select {
+		case <-done:
+			_ = cn.Close()
+			// Wait for the goroutine to finish and send something.
+			<-errc
+
+			err = ctx.Err()
+			return err
+		case err = <-errc:
+			return err
+		}
+	})
 }
 
-func (c *baseClient) _process(ctx context.Context, cmd Cmder) error {
+func (c *baseClient) process(ctx context.Context, cmd Cmder) error {
 	var lastErr error
 	for attempt := 0; attempt <= c.opt.MaxRetries; attempt++ {
-		if attempt > 0 {
-			if err := internal.Sleep(ctx, c.retryBackoff(attempt)); err != nil {
-				return err
+		attempt := attempt
+
+		var retry bool
+		err := internal.WithSpan(ctx, "redis.process", func(ctx context.Context, span trace.Span) error {
+			if attempt > 0 {
+				if err := internal.Sleep(ctx, c.retryBackoff(attempt)); err != nil {
+					return err
+				}
 			}
-		}
 
-		retryTimeout := true
-		lastErr = c.withConn(ctx, func(ctx context.Context, cn *pool.Conn) error {
-			err := cn.WithWriter(ctx, c.opt.WriteTimeout, func(wr *proto.Writer) error {
-				return writeCmd(wr, cmd)
+			retryTimeout := uint32(1)
+			err := c.withConn(ctx, func(ctx context.Context, cn *pool.Conn) error {
+				err := cn.WithWriter(ctx, c.opt.WriteTimeout, func(wr *proto.Writer) error {
+					return writeCmd(wr, cmd)
+				})
+				if err != nil {
+					return err
+				}
+
+				err = cn.WithReader(ctx, c.cmdTimeout(cmd), cmd.readReply)
+				if err != nil {
+					if cmd.readTimeout() == nil {
+						atomic.StoreUint32(&retryTimeout, 1)
+					}
+					return err
+				}
+
+				return nil
 			})
-			if err != nil {
-				return err
+			if err == nil {
+				return nil
 			}
-
-			err = cn.WithReader(ctx, c.cmdTimeout(cmd), cmd.readReply)
-			if err != nil {
-				retryTimeout = cmd.readTimeout() == nil
-				return err
-			}
-
-			return nil
+			retry = shouldRetry(err, atomic.LoadUint32(&retryTimeout) == 1)
+			return err
 		})
-		if lastErr == nil || !isRetryableError(lastErr, retryTimeout) {
-			return lastErr
+		if err == nil || !retry {
+			return err
 		}
+		lastErr = err
 	}
 	return lastErr
 }
@@ -411,7 +447,7 @@ func (c *baseClient) _generalProcessPipeline(
 			canRetry, err = p(ctx, cn, cmds)
 			return err
 		})
-		if lastErr == nil || !canRetry || !isRetryableError(lastErr, true) {
+		if lastErr == nil || !canRetry || !shouldRetry(lastErr, true) {
 			return lastErr
 		}
 	}
@@ -437,6 +473,7 @@ func (c *baseClient) pipelineProcessCmds(
 func pipelineReadCmds(rd *proto.Reader, cmds []Cmder) error {
 	for _, cmd := range cmds {
 		err := cmd.readReply(rd)
+		cmd.SetErr(err)
 		if err != nil && !isRedisError(err) {
 			return err
 		}
@@ -469,15 +506,15 @@ func (c *baseClient) txPipelineProcessCmds(
 	return false, err
 }
 
-func wrapMultiExec(cmds []Cmder) []Cmder {
+func wrapMultiExec(ctx context.Context, cmds []Cmder) []Cmder {
 	if len(cmds) == 0 {
 		panic("not reached")
 	}
-	cmds = append(cmds, make([]Cmder, 2)...)
-	copy(cmds[1:], cmds[:len(cmds)-2])
-	cmds[0] = NewStatusCmd("multi")
-	cmds[len(cmds)-1] = NewSliceCmd("exec")
-	return cmds
+	cmdCopy := make([]Cmder, len(cmds)+2)
+	cmdCopy[0] = NewStatusCmd(ctx, "multi")
+	copy(cmdCopy[1:], cmds)
+	cmdCopy[len(cmdCopy)-1] = NewSliceCmd(ctx, "exec")
+	return cmdCopy
 }
 
 func txPipelineReadQueued(rd *proto.Reader, statusCmd *StatusCmd, cmds []Cmder) error {
@@ -565,26 +602,18 @@ func (c *Client) WithContext(ctx context.Context) *Client {
 	return clone
 }
 
-func (c *Client) Conn() *Conn {
-	return newConn(c.ctx, c.opt, pool.NewSingleConnPool(c.connPool))
+func (c *Client) Conn(ctx context.Context) *Conn {
+	return newConn(ctx, c.opt, pool.NewStickyConnPool(c.connPool))
 }
 
 // Do creates a Cmd from the args and processes the cmd.
-func (c *Client) Do(args ...interface{}) *Cmd {
-	return c.DoContext(c.ctx, args...)
-}
-
-func (c *Client) DoContext(ctx context.Context, args ...interface{}) *Cmd {
-	cmd := NewCmd(args...)
-	_ = c.ProcessContext(ctx, cmd)
+func (c *Client) Do(ctx context.Context, args ...interface{}) *Cmd {
+	cmd := NewCmd(ctx, args...)
+	_ = c.Process(ctx, cmd)
 	return cmd
 }
 
-func (c *Client) Process(cmd Cmder) error {
-	return c.ProcessContext(c.ctx, cmd)
-}
-
-func (c *Client) ProcessContext(ctx context.Context, cmd Cmder) error {
+func (c *Client) Process(ctx context.Context, cmd Cmder) error {
 	return c.hooks.process(ctx, cmd, c.baseClient.process)
 }
 
@@ -609,8 +638,8 @@ func (c *Client) PoolStats() *PoolStats {
 	return (*PoolStats)(stats)
 }
 
-func (c *Client) Pipelined(fn func(Pipeliner) error) ([]Cmder, error) {
-	return c.Pipeline().Pipelined(fn)
+func (c *Client) Pipelined(ctx context.Context, fn func(Pipeliner) error) ([]Cmder, error) {
+	return c.Pipeline().Pipelined(ctx, fn)
 }
 
 func (c *Client) Pipeline() Pipeliner {
@@ -622,8 +651,8 @@ func (c *Client) Pipeline() Pipeliner {
 	return &pipe
 }
 
-func (c *Client) TxPipelined(fn func(Pipeliner) error) ([]Cmder, error) {
-	return c.TxPipeline().Pipelined(fn)
+func (c *Client) TxPipelined(ctx context.Context, fn func(Pipeliner) error) ([]Cmder, error) {
+	return c.TxPipeline().Pipelined(ctx, fn)
 }
 
 // TxPipeline acts like Pipeline, but wraps queued commands with MULTI/EXEC.
@@ -640,8 +669,8 @@ func (c *Client) pubSub() *PubSub {
 	pubsub := &PubSub{
 		opt: c.opt,
 
-		newConn: func(channels []string) (*pool.Conn, error) {
-			return c.newConn(context.TODO())
+		newConn: func(ctx context.Context, channels []string) (*pool.Conn, error) {
+			return c.newConn(ctx)
 		},
 		closeConn: c.connPool.CloseConn,
 	}
@@ -675,20 +704,20 @@ func (c *Client) pubSub() *PubSub {
 //    }
 //
 //    ch := sub.Channel()
-func (c *Client) Subscribe(channels ...string) *PubSub {
+func (c *Client) Subscribe(ctx context.Context, channels ...string) *PubSub {
 	pubsub := c.pubSub()
 	if len(channels) > 0 {
-		_ = pubsub.Subscribe(channels...)
+		_ = pubsub.Subscribe(ctx, channels...)
 	}
 	return pubsub
 }
 
 // PSubscribe subscribes the client to the given patterns.
 // Patterns can be omitted to create empty subscription.
-func (c *Client) PSubscribe(channels ...string) *PubSub {
+func (c *Client) PSubscribe(ctx context.Context, channels ...string) *PubSub {
 	pubsub := c.pubSub()
 	if len(channels) > 0 {
-		_ = pubsub.PSubscribe(channels...)
+		_ = pubsub.PSubscribe(ctx, channels...)
 	}
 	return pubsub
 }
@@ -699,6 +728,7 @@ type conn struct {
 	baseClient
 	cmdable
 	statefulCmdable
+	hooks // TODO: inherit hooks
 }
 
 // Conn is like Client, but its pool contains single connection.
@@ -722,16 +752,20 @@ func newConn(ctx context.Context, opt *Options, connPool pool.Pooler) *Conn {
 	return &c
 }
 
-func (c *Conn) Process(cmd Cmder) error {
-	return c.ProcessContext(c.ctx, cmd)
+func (c *Conn) Process(ctx context.Context, cmd Cmder) error {
+	return c.hooks.process(ctx, cmd, c.baseClient.process)
 }
 
-func (c *Conn) ProcessContext(ctx context.Context, cmd Cmder) error {
-	return c.baseClient.process(ctx, cmd)
+func (c *Conn) processPipeline(ctx context.Context, cmds []Cmder) error {
+	return c.hooks.processPipeline(ctx, cmds, c.baseClient.processPipeline)
+}
+
+func (c *Conn) processTxPipeline(ctx context.Context, cmds []Cmder) error {
+	return c.hooks.processTxPipeline(ctx, cmds, c.baseClient.processTxPipeline)
 }
 
-func (c *Conn) Pipelined(fn func(Pipeliner) error) ([]Cmder, error) {
-	return c.Pipeline().Pipelined(fn)
+func (c *Conn) Pipelined(ctx context.Context, fn func(Pipeliner) error) ([]Cmder, error) {
+	return c.Pipeline().Pipelined(ctx, fn)
 }
 
 func (c *Conn) Pipeline() Pipeliner {
@@ -743,8 +777,8 @@ func (c *Conn) Pipeline() Pipeliner {
 	return &pipe
 }
 
-func (c *Conn) TxPipelined(fn func(Pipeliner) error) ([]Cmder, error) {
-	return c.TxPipeline().Pipelined(fn)
+func (c *Conn) TxPipelined(ctx context.Context, fn func(Pipeliner) error) ([]Cmder, error) {
+	return c.TxPipeline().Pipelined(ctx, fn)
 }
 
 // TxPipeline acts like Pipeline, but wraps queued commands with MULTI/EXEC.
diff --git a/vendor/github.com/go-redis/redis/v7/result.go b/vendor/github.com/go-redis/redis/v8/result.go
index 5bec26ca95..24cfd49940 100644
--- a/vendor/github.com/go-redis/redis/v7/result.go
+++ b/vendor/github.com/go-redis/redis/v8/result.go
@@ -2,7 +2,7 @@ package redis
 
 import "time"
 
-// NewCmdResult returns a Cmd initialised with val and err for testing
+// NewCmdResult returns a Cmd initialised with val and err for testing.
 func NewCmdResult(val interface{}, err error) *Cmd {
 	var cmd Cmd
 	cmd.val = val
@@ -10,7 +10,7 @@ func NewCmdResult(val interface{}, err error) *Cmd {
 	return &cmd
 }
 
-// NewSliceResult returns a SliceCmd initialised with val and err for testing
+// NewSliceResult returns a SliceCmd initialised with val and err for testing.
 func NewSliceResult(val []interface{}, err error) *SliceCmd {
 	var cmd SliceCmd
 	cmd.val = val
@@ -18,7 +18,7 @@ func NewSliceResult(val []interface{}, err error) *SliceCmd {
 	return &cmd
 }
 
-// NewStatusResult returns a StatusCmd initialised with val and err for testing
+// NewStatusResult returns a StatusCmd initialised with val and err for testing.
 func NewStatusResult(val string, err error) *StatusCmd {
 	var cmd StatusCmd
 	cmd.val = val
@@ -26,7 +26,7 @@ func NewStatusResult(val string, err error) *StatusCmd {
 	return &cmd
 }
 
-// NewIntResult returns an IntCmd initialised with val and err for testing
+// NewIntResult returns an IntCmd initialised with val and err for testing.
 func NewIntResult(val int64, err error) *IntCmd {
 	var cmd IntCmd
 	cmd.val = val
@@ -34,7 +34,7 @@ func NewIntResult(val int64, err error) *IntCmd {
 	return &cmd
 }
 
-// NewDurationResult returns a DurationCmd initialised with val and err for testing
+// NewDurationResult returns a DurationCmd initialised with val and err for testing.
 func NewDurationResult(val time.Duration, err error) *DurationCmd {
 	var cmd DurationCmd
 	cmd.val = val
@@ -42,7 +42,7 @@ func NewDurationResult(val time.Duration, err error) *DurationCmd {
 	return &cmd
 }
 
-// NewBoolResult returns a BoolCmd initialised with val and err for testing
+// NewBoolResult returns a BoolCmd initialised with val and err for testing.
 func NewBoolResult(val bool, err error) *BoolCmd {
 	var cmd BoolCmd
 	cmd.val = val
@@ -50,7 +50,7 @@ func NewBoolResult(val bool, err error) *BoolCmd {
 	return &cmd
 }
 
-// NewStringResult returns a StringCmd initialised with val and err for testing
+// NewStringResult returns a StringCmd initialised with val and err for testing.
 func NewStringResult(val string, err error) *StringCmd {
 	var cmd StringCmd
 	cmd.val = val
@@ -58,7 +58,7 @@ func NewStringResult(val string, err error) *StringCmd {
 	return &cmd
 }
 
-// NewFloatResult returns a FloatCmd initialised with val and err for testing
+// NewFloatResult returns a FloatCmd initialised with val and err for testing.
 func NewFloatResult(val float64, err error) *FloatCmd {
 	var cmd FloatCmd
 	cmd.val = val
@@ -66,7 +66,7 @@ func NewFloatResult(val float64, err error) *FloatCmd {
 	return &cmd
 }
 
-// NewStringSliceResult returns a StringSliceCmd initialised with val and err for testing
+// NewStringSliceResult returns a StringSliceCmd initialised with val and err for testing.
 func NewStringSliceResult(val []string, err error) *StringSliceCmd {
 	var cmd StringSliceCmd
 	cmd.val = val
@@ -74,7 +74,7 @@ func NewStringSliceResult(val []string, err error) *StringSliceCmd {
 	return &cmd
 }
 
-// NewBoolSliceResult returns a BoolSliceCmd initialised with val and err for testing
+// NewBoolSliceResult returns a BoolSliceCmd initialised with val and err for testing.
 func NewBoolSliceResult(val []bool, err error) *BoolSliceCmd {
 	var cmd BoolSliceCmd
 	cmd.val = val
@@ -82,7 +82,7 @@ func NewBoolSliceResult(val []bool, err error) *BoolSliceCmd {
 	return &cmd
 }
 
-// NewStringStringMapResult returns a StringStringMapCmd initialised with val and err for testing
+// NewStringStringMapResult returns a StringStringMapCmd initialised with val and err for testing.
 func NewStringStringMapResult(val map[string]string, err error) *StringStringMapCmd {
 	var cmd StringStringMapCmd
 	cmd.val = val
@@ -90,7 +90,7 @@ func NewStringStringMapResult(val map[string]string, err error) *StringStringMap
 	return &cmd
 }
 
-// NewStringIntMapCmdResult returns a StringIntMapCmd initialised with val and err for testing
+// NewStringIntMapCmdResult returns a StringIntMapCmd initialised with val and err for testing.
 func NewStringIntMapCmdResult(val map[string]int64, err error) *StringIntMapCmd {
 	var cmd StringIntMapCmd
 	cmd.val = val
@@ -98,7 +98,7 @@ func NewStringIntMapCmdResult(val map[string]int64, err error) *StringIntMapCmd
 	return &cmd
 }
 
-// NewTimeCmdResult returns a TimeCmd initialised with val and err for testing
+// NewTimeCmdResult returns a TimeCmd initialised with val and err for testing.
 func NewTimeCmdResult(val time.Time, err error) *TimeCmd {
 	var cmd TimeCmd
 	cmd.val = val
@@ -106,7 +106,7 @@ func NewTimeCmdResult(val time.Time, err error) *TimeCmd {
 	return &cmd
 }
 
-// NewZSliceCmdResult returns a ZSliceCmd initialised with val and err for testing
+// NewZSliceCmdResult returns a ZSliceCmd initialised with val and err for testing.
 func NewZSliceCmdResult(val []Z, err error) *ZSliceCmd {
 	var cmd ZSliceCmd
 	cmd.val = val
@@ -114,7 +114,7 @@ func NewZSliceCmdResult(val []Z, err error) *ZSliceCmd {
 	return &cmd
 }
 
-// NewZWithKeyCmdResult returns a NewZWithKeyCmd initialised with val and err for testing
+// NewZWithKeyCmdResult returns a NewZWithKeyCmd initialised with val and err for testing.
 func NewZWithKeyCmdResult(val *ZWithKey, err error) *ZWithKeyCmd {
 	var cmd ZWithKeyCmd
 	cmd.val = val
@@ -122,7 +122,7 @@ func NewZWithKeyCmdResult(val *ZWithKey, err error) *ZWithKeyCmd {
 	return &cmd
 }
 
-// NewScanCmdResult returns a ScanCmd initialised with val and err for testing
+// NewScanCmdResult returns a ScanCmd initialised with val and err for testing.
 func NewScanCmdResult(keys []string, cursor uint64, err error) *ScanCmd {
 	var cmd ScanCmd
 	cmd.page = keys
@@ -131,7 +131,7 @@ func NewScanCmdResult(keys []string, cursor uint64, err error) *ScanCmd {
 	return &cmd
 }
 
-// NewClusterSlotsCmdResult returns a ClusterSlotsCmd initialised with val and err for testing
+// NewClusterSlotsCmdResult returns a ClusterSlotsCmd initialised with val and err for testing.
 func NewClusterSlotsCmdResult(val []ClusterSlot, err error) *ClusterSlotsCmd {
 	var cmd ClusterSlotsCmd
 	cmd.val = val
@@ -139,7 +139,7 @@ func NewClusterSlotsCmdResult(val []ClusterSlot, err error) *ClusterSlotsCmd {
 	return &cmd
 }
 
-// NewGeoLocationCmdResult returns a GeoLocationCmd initialised with val and err for testing
+// NewGeoLocationCmdResult returns a GeoLocationCmd initialised with val and err for testing.
 func NewGeoLocationCmdResult(val []GeoLocation, err error) *GeoLocationCmd {
 	var cmd GeoLocationCmd
 	cmd.locations = val
@@ -147,7 +147,7 @@ func NewGeoLocationCmdResult(val []GeoLocation, err error) *GeoLocationCmd {
 	return &cmd
 }
 
-// NewGeoPosCmdResult returns a GeoPosCmd initialised with val and err for testing
+// NewGeoPosCmdResult returns a GeoPosCmd initialised with val and err for testing.
 func NewGeoPosCmdResult(val []*GeoPos, err error) *GeoPosCmd {
 	var cmd GeoPosCmd
 	cmd.val = val
@@ -155,7 +155,7 @@ func NewGeoPosCmdResult(val []*GeoPos, err error) *GeoPosCmd {
 	return &cmd
 }
 
-// NewCommandsInfoCmdResult returns a CommandsInfoCmd initialised with val and err for testing
+// NewCommandsInfoCmdResult returns a CommandsInfoCmd initialised with val and err for testing.
 func NewCommandsInfoCmdResult(val map[string]*CommandInfo, err error) *CommandsInfoCmd {
 	var cmd CommandsInfoCmd
 	cmd.val = val
@@ -163,7 +163,7 @@ func NewCommandsInfoCmdResult(val map[string]*CommandInfo, err error) *CommandsI
 	return &cmd
 }
 
-// NewXMessageSliceCmdResult returns a XMessageSliceCmd initialised with val and err for testing
+// NewXMessageSliceCmdResult returns a XMessageSliceCmd initialised with val and err for testing.
 func NewXMessageSliceCmdResult(val []XMessage, err error) *XMessageSliceCmd {
 	var cmd XMessageSliceCmd
 	cmd.val = val
@@ -171,7 +171,7 @@ func NewXMessageSliceCmdResult(val []XMessage, err error) *XMessageSliceCmd {
 	return &cmd
 }
 
-// NewXStreamSliceCmdResult returns a XStreamSliceCmd initialised with val and err for testing
+// NewXStreamSliceCmdResult returns a XStreamSliceCmd initialised with val and err for testing.
 func NewXStreamSliceCmdResult(val []XStream, err error) *XStreamSliceCmd {
 	var cmd XStreamSliceCmd
 	cmd.val = val
diff --git a/vendor/github.com/go-redis/redis/v7/ring.go b/vendor/github.com/go-redis/redis/v8/ring.go
index 44fc623f8a..34d05f35ae 100644
--- a/vendor/github.com/go-redis/redis/v7/ring.go
+++ b/vendor/github.com/go-redis/redis/v8/ring.go
@@ -2,72 +2,73 @@ package redis
 
 import (
 	"context"
+	"crypto/tls"
 	"errors"
 	"fmt"
-	"math/rand"
+	"net"
 	"strconv"
 	"sync"
 	"sync/atomic"
 	"time"
 
-	"github.com/go-redis/redis/v7/internal"
-	"github.com/go-redis/redis/v7/internal/consistenthash"
-	"github.com/go-redis/redis/v7/internal/hashtag"
-	"github.com/go-redis/redis/v7/internal/pool"
+	"github.com/cespare/xxhash/v2"
+	"github.com/dgryski/go-rendezvous"
+	"github.com/go-redis/redis/v8/internal"
+	"github.com/go-redis/redis/v8/internal/hashtag"
+	"github.com/go-redis/redis/v8/internal/pool"
+	"github.com/go-redis/redis/v8/internal/rand"
 )
 
-// Hash is type of hash function used in consistent hash.
-type Hash consistenthash.Hash
-
 var errRingShardsDown = errors.New("redis: all ring shards are down")
 
+//------------------------------------------------------------------------------
+
+type ConsistentHash interface {
+	Get(string) string
+}
+
+type rendezvousWrapper struct {
+	*rendezvous.Rendezvous
+}
+
+func (w rendezvousWrapper) Get(key string) string {
+	return w.Lookup(key)
+}
+
+func newRendezvous(shards []string) ConsistentHash {
+	return rendezvousWrapper{rendezvous.New(shards, xxhash.Sum64String)}
+}
+
+//------------------------------------------------------------------------------
+
 // RingOptions are used to configure a ring client and should be
 // passed to NewRing.
 type RingOptions struct {
 	// Map of name => host:port addresses of ring shards.
 	Addrs map[string]string
 
-	// Map of name => password of ring shards, to allow different shards to have
-	// different passwords. It will be ignored if the Password field is set.
-	Passwords map[string]string
+	// NewClient creates a shard client with provided name and options.
+	NewClient func(name string, opt *Options) *Client
 
 	// Frequency of PING commands sent to check shards availability.
 	// Shard is considered down after 3 subsequent failed checks.
 	HeartbeatFrequency time.Duration
 
-	// Hash function used in consistent hash.
-	// Default is crc32.ChecksumIEEE.
-	Hash Hash
-
-	// Number of replicas in consistent hash.
-	// Default is 100 replicas.
-	//
-	// Higher number of replicas will provide less deviation, that is keys will be
-	// distributed to nodes more evenly.
+	// NewConsistentHash returns a consistent hash that is used
+	// to distribute keys across the shards.
 	//
-	// Following is deviation for common nreplicas:
-	//  --------------------------------------------------------
-	//  | nreplicas | standard error | 99% confidence interval |
-	//  |     10    |     0.3152     |      (0.37, 1.98)       |
-	//  |    100    |     0.0997     |      (0.76, 1.28)       |
-	//  |   1000    |     0.0316     |      (0.92, 1.09)       |
-	//  --------------------------------------------------------
-	//
-	//  See https://arxiv.org/abs/1406.2294 for reference
-	HashReplicas int
-
-	// NewClient creates a shard client with provided name and options.
-	NewClient func(name string, opt *Options) *Client
-
-	// Optional hook that is called when a new shard is created.
-	OnNewShard func(*Client)
+	// See https://medium.com/@dgryski/consistent-hashing-algorithmic-tradeoffs-ef6b8e2fcae8
+	// for consistent hashing algorithmic tradeoffs.
+	NewConsistentHash func(shards []string) ConsistentHash
 
 	// Following options are copied from Options struct.
 
-	OnConnect func(*Conn) error
+	Dialer    func(ctx context.Context, network, addr string) (net.Conn, error)
+	OnConnect func(ctx context.Context, cn *Conn) error
 
-	DB       int
+	Username string
 	Password string
+	DB       int
 
 	MaxRetries      int
 	MinRetryBackoff time.Duration
@@ -83,17 +84,31 @@ type RingOptions struct {
 	PoolTimeout        time.Duration
 	IdleTimeout        time.Duration
 	IdleCheckFrequency time.Duration
+
+	TLSConfig *tls.Config
+	Limiter   Limiter
 }
 
 func (opt *RingOptions) init() {
+	if opt.NewClient == nil {
+		opt.NewClient = func(name string, opt *Options) *Client {
+			return NewClient(opt)
+		}
+	}
+
 	if opt.HeartbeatFrequency == 0 {
 		opt.HeartbeatFrequency = 500 * time.Millisecond
 	}
 
-	if opt.HashReplicas == 0 {
-		opt.HashReplicas = 100
+	if opt.NewConsistentHash == nil {
+		opt.NewConsistentHash = newRendezvous
 	}
 
+	if opt.MaxRetries == -1 {
+		opt.MaxRetries = 0
+	} else if opt.MaxRetries == 0 {
+		opt.MaxRetries = 3
+	}
 	switch opt.MinRetryBackoff {
 	case -1:
 		opt.MinRetryBackoff = 0
@@ -108,12 +123,16 @@ func (opt *RingOptions) init() {
 	}
 }
 
-func (opt *RingOptions) clientOptions(shard string) *Options {
+func (opt *RingOptions) clientOptions() *Options {
 	return &Options{
+		Dialer:    opt.Dialer,
 		OnConnect: opt.OnConnect,
 
+		Username: opt.Username,
+		Password: opt.Password,
 		DB:       opt.DB,
-		Password: opt.getPassword(shard),
+
+		MaxRetries: -1,
 
 		DialTimeout:  opt.DialTimeout,
 		ReadTimeout:  opt.ReadTimeout,
@@ -125,14 +144,10 @@ func (opt *RingOptions) clientOptions(shard string) *Options {
 		PoolTimeout:        opt.PoolTimeout,
 		IdleTimeout:        opt.IdleTimeout,
 		IdleCheckFrequency: opt.IdleCheckFrequency,
-	}
-}
 
-func (opt *RingOptions) getPassword(shard string) string {
-	if opt.Password == "" {
-		return opt.Passwords[shard]
+		TLSConfig: opt.TLSConfig,
+		Limiter:   opt.Limiter,
 	}
-	return opt.Password
 }
 
 //------------------------------------------------------------------------------
@@ -142,6 +157,15 @@ type ringShard struct {
 	down   int32
 }
 
+func newRingShard(opt *RingOptions, name, addr string) *ringShard {
+	clopt := opt.clientOptions()
+	clopt.Addr = addr
+
+	return &ringShard{
+		Client: opt.NewClient(name, clopt),
+	}
+}
+
 func (shard *ringShard) String() string {
 	var state string
 	if shard.IsUp() {
@@ -182,41 +206,59 @@ func (shard *ringShard) Vote(up bool) bool {
 type ringShards struct {
 	opt *RingOptions
 
-	mu     sync.RWMutex
-	hash   *consistenthash.Map
-	shards map[string]*ringShard // read only
-	list   []*ringShard          // read only
-	len    int
-	closed bool
+	mu       sync.RWMutex
+	hash     ConsistentHash
+	shards   map[string]*ringShard // read only
+	list     []*ringShard          // read only
+	numShard int
+	closed   bool
 }
 
 func newRingShards(opt *RingOptions) *ringShards {
-	return &ringShards{
+	shards := make(map[string]*ringShard, len(opt.Addrs))
+	list := make([]*ringShard, 0, len(shards))
+
+	for name, addr := range opt.Addrs {
+		shard := newRingShard(opt, name, addr)
+		shards[name] = shard
+
+		list = append(list, shard)
+	}
+
+	c := &ringShards{
 		opt: opt,
 
-		hash:   newConsistentHash(opt),
-		shards: make(map[string]*ringShard),
+		shards: shards,
+		list:   list,
 	}
-}
+	c.rebalance()
 
-func (c *ringShards) Add(name string, cl *Client) {
-	shard := &ringShard{Client: cl}
-	c.hash.Add(name)
-	c.shards[name] = shard
-	c.list = append(c.list, shard)
+	return c
 }
 
 func (c *ringShards) List() []*ringShard {
+	var list []*ringShard
+
 	c.mu.RLock()
-	list := c.list
+	if !c.closed {
+		list = c.list
+	}
 	c.mu.RUnlock()
+
 	return list
 }
 
 func (c *ringShards) Hash(key string) string {
+	key = hashtag.Key(key)
+
+	var hash string
+
 	c.mu.RLock()
-	hash := c.hash.Get(key)
+	if c.numShard > 0 {
+		hash = c.hash.Get(key)
+	}
 	c.mu.RUnlock()
+
 	return hash
 }
 
@@ -230,6 +272,11 @@ func (c *ringShards) GetByKey(key string) (*ringShard, error) {
 		return nil, pool.ErrClosed
 	}
 
+	if c.numShard == 0 {
+		c.mu.RUnlock()
+		return nil, errRingShardsDown
+	}
+
 	hash := c.hash.Get(key)
 	if hash == "" {
 		c.mu.RUnlock()
@@ -242,13 +289,13 @@ func (c *ringShards) GetByKey(key string) (*ringShard, error) {
 	return shard, nil
 }
 
-func (c *ringShards) GetByHash(name string) (*ringShard, error) {
-	if name == "" {
+func (c *ringShards) GetByName(shardName string) (*ringShard, error) {
+	if shardName == "" {
 		return c.Random()
 	}
 
 	c.mu.RLock()
-	shard := c.shards[name]
+	shard := c.shards[shardName]
 	c.mu.RUnlock()
 	return shard, nil
 }
@@ -261,23 +308,16 @@ func (c *ringShards) Random() (*ringShard, error) {
 func (c *ringShards) Heartbeat(frequency time.Duration) {
 	ticker := time.NewTicker(frequency)
 	defer ticker.Stop()
+
+	ctx := context.Background()
 	for range ticker.C {
 		var rebalance bool
 
-		c.mu.RLock()
-
-		if c.closed {
-			c.mu.RUnlock()
-			break
-		}
-
-		shards := c.list
-		c.mu.RUnlock()
-
-		for _, shard := range shards {
-			err := shard.Client.Ping().Err()
-			if shard.Vote(err == nil || err == pool.ErrPoolTimeout) {
-				internal.Logger.Printf("ring shard state changed: %s", shard)
+		for _, shard := range c.List() {
+			err := shard.Client.Ping(ctx).Err()
+			isUp := err == nil || err == pool.ErrPoolTimeout
+			if shard.Vote(isUp) {
+				internal.Logger.Printf(context.Background(), "ring shard state changed: %s", shard)
 				rebalance = true
 			}
 		}
@@ -294,24 +334,25 @@ func (c *ringShards) rebalance() {
 	shards := c.shards
 	c.mu.RUnlock()
 
-	hash := newConsistentHash(c.opt)
-	var shardsNum int
+	liveShards := make([]string, 0, len(shards))
+
 	for name, shard := range shards {
 		if shard.IsUp() {
-			hash.Add(name)
-			shardsNum++
+			liveShards = append(liveShards, name)
 		}
 	}
 
+	hash := c.opt.NewConsistentHash(liveShards)
+
 	c.mu.Lock()
 	c.hash = hash
-	c.len = shardsNum
+	c.numShard = len(liveShards)
 	c.mu.Unlock()
 }
 
 func (c *ringShards) Len() int {
 	c.mu.RLock()
-	l := c.len
+	l := c.numShard
 	c.mu.RUnlock()
 	return l
 }
@@ -377,34 +418,15 @@ func NewRing(opt *RingOptions) *Ring {
 		},
 		ctx: context.Background(),
 	}
+
 	ring.cmdsInfoCache = newCmdsInfoCache(ring.cmdsInfo)
 	ring.cmdable = ring.Process
 
-	for name, addr := range opt.Addrs {
-		shard := newRingShard(opt, name, addr)
-		ring.shards.Add(name, shard)
-	}
-
 	go ring.shards.Heartbeat(opt.HeartbeatFrequency)
 
 	return &ring
 }
 
-func newRingShard(opt *RingOptions, name, addr string) *Client {
-	clopt := opt.clientOptions(name)
-	clopt.Addr = addr
-	var shard *Client
-	if opt.NewClient != nil {
-		shard = opt.NewClient(name, clopt)
-	} else {
-		shard = NewClient(clopt)
-	}
-	if opt.OnNewShard != nil {
-		opt.OnNewShard(shard)
-	}
-	return shard
-}
-
 func (c *Ring) Context() context.Context {
 	return c.ctx
 }
@@ -421,21 +443,13 @@ func (c *Ring) WithContext(ctx context.Context) *Ring {
 }
 
 // Do creates a Cmd from the args and processes the cmd.
-func (c *Ring) Do(args ...interface{}) *Cmd {
-	return c.DoContext(c.ctx, args...)
-}
-
-func (c *Ring) DoContext(ctx context.Context, args ...interface{}) *Cmd {
-	cmd := NewCmd(args...)
-	_ = c.ProcessContext(ctx, cmd)
+func (c *Ring) Do(ctx context.Context, args ...interface{}) *Cmd {
+	cmd := NewCmd(ctx, args...)
+	_ = c.Process(ctx, cmd)
 	return cmd
 }
 
-func (c *Ring) Process(cmd Cmder) error {
-	return c.ProcessContext(c.ctx, cmd)
-}
-
-func (c *Ring) ProcessContext(ctx context.Context, cmd Cmder) error {
+func (c *Ring) Process(ctx context.Context, cmd Cmder) error {
 	return c.hooks.process(ctx, cmd, c.process)
 }
 
@@ -469,36 +483,39 @@ func (c *Ring) Len() int {
 }
 
 // Subscribe subscribes the client to the specified channels.
-func (c *Ring) Subscribe(channels ...string) *PubSub {
+func (c *Ring) Subscribe(ctx context.Context, channels ...string) *PubSub {
 	if len(channels) == 0 {
 		panic("at least one channel is required")
 	}
 
 	shard, err := c.shards.GetByKey(channels[0])
 	if err != nil {
-		//TODO: return PubSub with sticky error
+		// TODO: return PubSub with sticky error
 		panic(err)
 	}
-	return shard.Client.Subscribe(channels...)
+	return shard.Client.Subscribe(ctx, channels...)
 }
 
 // PSubscribe subscribes the client to the given patterns.
-func (c *Ring) PSubscribe(channels ...string) *PubSub {
+func (c *Ring) PSubscribe(ctx context.Context, channels ...string) *PubSub {
 	if len(channels) == 0 {
 		panic("at least one channel is required")
 	}
 
 	shard, err := c.shards.GetByKey(channels[0])
 	if err != nil {
-		//TODO: return PubSub with sticky error
+		// TODO: return PubSub with sticky error
 		panic(err)
 	}
-	return shard.Client.PSubscribe(channels...)
+	return shard.Client.PSubscribe(ctx, channels...)
 }
 
 // ForEachShard concurrently calls the fn on each live shard in the ring.
 // It returns the first error if any.
-func (c *Ring) ForEachShard(fn func(client *Client) error) error {
+func (c *Ring) ForEachShard(
+	ctx context.Context,
+	fn func(ctx context.Context, client *Client) error,
+) error {
 	shards := c.shards.List()
 	var wg sync.WaitGroup
 	errCh := make(chan error, 1)
@@ -510,7 +527,7 @@ func (c *Ring) ForEachShard(fn func(client *Client) error) error {
 		wg.Add(1)
 		go func(shard *ringShard) {
 			defer wg.Done()
-			err := fn(shard.Client)
+			err := fn(ctx, shard.Client)
 			if err != nil {
 				select {
 				case errCh <- err:
@@ -529,11 +546,11 @@ func (c *Ring) ForEachShard(fn func(client *Client) error) error {
 	}
 }
 
-func (c *Ring) cmdsInfo() (map[string]*CommandInfo, error) {
+func (c *Ring) cmdsInfo(ctx context.Context) (map[string]*CommandInfo, error) {
 	shards := c.shards.List()
-	firstErr := errRingShardsDown
+	var firstErr error
 	for _, shard := range shards {
-		cmdsInfo, err := shard.Client.Command().Result()
+		cmdsInfo, err := shard.Client.Command(ctx).Result()
 		if err == nil {
 			return cmdsInfo, nil
 		}
@@ -541,23 +558,26 @@ func (c *Ring) cmdsInfo() (map[string]*CommandInfo, error) {
 			firstErr = err
 		}
 	}
+	if firstErr == nil {
+		return nil, errRingShardsDown
+	}
 	return nil, firstErr
 }
 
-func (c *Ring) cmdInfo(name string) *CommandInfo {
-	cmdsInfo, err := c.cmdsInfoCache.Get()
+func (c *Ring) cmdInfo(ctx context.Context, name string) *CommandInfo {
+	cmdsInfo, err := c.cmdsInfoCache.Get(ctx)
 	if err != nil {
 		return nil
 	}
 	info := cmdsInfo[name]
 	if info == nil {
-		internal.Logger.Printf("info for cmd=%s not found", name)
+		internal.Logger.Printf(c.Context(), "info for cmd=%s not found", name)
 	}
 	return info
 }
 
-func (c *Ring) cmdShard(cmd Cmder) (*ringShard, error) {
-	cmdInfo := c.cmdInfo(cmd.Name())
+func (c *Ring) cmdShard(ctx context.Context, cmd Cmder) (*ringShard, error) {
+	cmdInfo := c.cmdInfo(ctx, cmd.Name())
 	pos := cmdFirstKeyPos(cmd, cmdInfo)
 	if pos == 0 {
 		return c.shards.Random()
@@ -567,15 +587,6 @@ func (c *Ring) cmdShard(cmd Cmder) (*ringShard, error) {
 }
 
 func (c *Ring) process(ctx context.Context, cmd Cmder) error {
-	err := c._process(ctx, cmd)
-	if err != nil {
-		cmd.SetErr(err)
-		return err
-	}
-	return nil
-}
-
-func (c *Ring) _process(ctx context.Context, cmd Cmder) error {
 	var lastErr error
 	for attempt := 0; attempt <= c.opt.MaxRetries; attempt++ {
 		if attempt > 0 {
@@ -584,21 +595,21 @@ func (c *Ring) _process(ctx context.Context, cmd Cmder) error {
 			}
 		}
 
-		shard, err := c.cmdShard(cmd)
+		shard, err := c.cmdShard(ctx, cmd)
 		if err != nil {
 			return err
 		}
 
-		lastErr = shard.Client.ProcessContext(ctx, cmd)
-		if lastErr == nil || !isRetryableError(lastErr, cmd.readTimeout() == nil) {
+		lastErr = shard.Client.Process(ctx, cmd)
+		if lastErr == nil || !shouldRetry(lastErr, cmd.readTimeout() == nil) {
 			return lastErr
 		}
 	}
 	return lastErr
 }
 
-func (c *Ring) Pipelined(fn func(Pipeliner) error) ([]Cmder, error) {
-	return c.Pipeline().Pipelined(fn)
+func (c *Ring) Pipelined(ctx context.Context, fn func(Pipeliner) error) ([]Cmder, error) {
+	return c.Pipeline().Pipelined(ctx, fn)
 }
 
 func (c *Ring) Pipeline() Pipeliner {
@@ -616,8 +627,8 @@ func (c *Ring) processPipeline(ctx context.Context, cmds []Cmder) error {
 	})
 }
 
-func (c *Ring) TxPipelined(fn func(Pipeliner) error) ([]Cmder, error) {
-	return c.TxPipeline().Pipelined(fn)
+func (c *Ring) TxPipelined(ctx context.Context, fn func(Pipeliner) error) ([]Cmder, error) {
+	return c.TxPipeline().Pipelined(ctx, fn)
 }
 
 func (c *Ring) TxPipeline() Pipeliner {
@@ -640,10 +651,10 @@ func (c *Ring) generalProcessPipeline(
 ) error {
 	cmdsMap := make(map[string][]Cmder)
 	for _, cmd := range cmds {
-		cmdInfo := c.cmdInfo(cmd.Name())
+		cmdInfo := c.cmdInfo(ctx, cmd.Name())
 		hash := cmd.stringArg(cmdFirstKeyPos(cmd, cmdInfo))
 		if hash != "" {
-			hash = c.shards.Hash(hashtag.Key(hash))
+			hash = c.shards.Hash(hash)
 		}
 		cmdsMap[hash] = append(cmdsMap[hash], cmd)
 	}
@@ -665,30 +676,20 @@ func (c *Ring) generalProcessPipeline(
 func (c *Ring) processShardPipeline(
 	ctx context.Context, hash string, cmds []Cmder, tx bool,
 ) error {
-	//TODO: retry?
-	shard, err := c.shards.GetByHash(hash)
+	// TODO: retry?
+	shard, err := c.shards.GetByName(hash)
 	if err != nil {
 		setCmdsErr(cmds, err)
 		return err
 	}
 
 	if tx {
-		err = shard.Client.processTxPipeline(ctx, cmds)
-	} else {
-		err = shard.Client.processPipeline(ctx, cmds)
+		return shard.Client.processTxPipeline(ctx, cmds)
 	}
-	return err
-}
-
-// Close closes the ring client, releasing any open resources.
-//
-// It is rare to Close a Ring, as the Ring is meant to be long-lived
-// and shared between many goroutines.
-func (c *Ring) Close() error {
-	return c.shards.Close()
+	return shard.Client.processPipeline(ctx, cmds)
 }
 
-func (c *Ring) Watch(fn func(*Tx) error, keys ...string) error {
+func (c *Ring) Watch(ctx context.Context, fn func(*Tx) error, keys ...string) error {
 	if len(keys) == 0 {
 		return fmt.Errorf("redis: Watch requires at least one key")
 	}
@@ -718,9 +719,13 @@ func (c *Ring) Watch(fn func(*Tx) error, keys ...string) error {
 		}
 	}
 
-	return shards[0].Client.Watch(fn, keys...)
+	return shards[0].Client.Watch(ctx, fn, keys...)
 }
 
-func newConsistentHash(opt *RingOptions) *consistenthash.Map {
-	return consistenthash.New(opt.HashReplicas, consistenthash.Hash(opt.Hash))
+// Close closes the ring client, releasing any open resources.
+//
+// It is rare to Close a Ring, as the Ring is meant to be long-lived
+// and shared between many goroutines.
+func (c *Ring) Close() error {
+	return c.shards.Close()
 }
diff --git a/vendor/github.com/go-redis/redis/v8/script.go b/vendor/github.com/go-redis/redis/v8/script.go
new file mode 100644
index 0000000000..5cab18d617
--- /dev/null
+++ b/vendor/github.com/go-redis/redis/v8/script.go
@@ -0,0 +1,65 @@
+package redis
+
+import (
+	"context"
+	"crypto/sha1"
+	"encoding/hex"
+	"io"
+	"strings"
+)
+
+type Scripter interface {
+	Eval(ctx context.Context, script string, keys []string, args ...interface{}) *Cmd
+	EvalSha(ctx context.Context, sha1 string, keys []string, args ...interface{}) *Cmd
+	ScriptExists(ctx context.Context, hashes ...string) *BoolSliceCmd
+	ScriptLoad(ctx context.Context, script string) *StringCmd
+}
+
+var (
+	_ Scripter = (*Client)(nil)
+	_ Scripter = (*Ring)(nil)
+	_ Scripter = (*ClusterClient)(nil)
+)
+
+type Script struct {
+	src, hash string
+}
+
+func NewScript(src string) *Script {
+	h := sha1.New()
+	_, _ = io.WriteString(h, src)
+	return &Script{
+		src:  src,
+		hash: hex.EncodeToString(h.Sum(nil)),
+	}
+}
+
+func (s *Script) Hash() string {
+	return s.hash
+}
+
+func (s *Script) Load(ctx context.Context, c Scripter) *StringCmd {
+	return c.ScriptLoad(ctx, s.src)
+}
+
+func (s *Script) Exists(ctx context.Context, c Scripter) *BoolSliceCmd {
+	return c.ScriptExists(ctx, s.hash)
+}
+
+func (s *Script) Eval(ctx context.Context, c Scripter, keys []string, args ...interface{}) *Cmd {
+	return c.Eval(ctx, s.src, keys, args...)
+}
+
+func (s *Script) EvalSha(ctx context.Context, c Scripter, keys []string, args ...interface{}) *Cmd {
+	return c.EvalSha(ctx, s.hash, keys, args...)
+}
+
+// Run optimistically uses EVALSHA to run the script. If script does not exist
+// it is retried using EVAL.
+func (s *Script) Run(ctx context.Context, c Scripter, keys []string, args ...interface{}) *Cmd {
+	r := s.EvalSha(ctx, c, keys, args...)
+	if err := r.Err(); err != nil && strings.HasPrefix(err.Error(), "NOSCRIPT ") {
+		return s.Eval(ctx, c, keys, args...)
+	}
+	return r
+}
diff --git a/vendor/github.com/go-redis/redis/v8/sentinel.go b/vendor/github.com/go-redis/redis/v8/sentinel.go
new file mode 100644
index 0000000000..d785168ff1
--- /dev/null
+++ b/vendor/github.com/go-redis/redis/v8/sentinel.go
@@ -0,0 +1,738 @@
+package redis
+
+import (
+	"context"
+	"crypto/tls"
+	"errors"
+	"net"
+	"strings"
+	"sync"
+	"time"
+
+	"github.com/go-redis/redis/v8/internal"
+	"github.com/go-redis/redis/v8/internal/pool"
+	"github.com/go-redis/redis/v8/internal/rand"
+)
+
+//------------------------------------------------------------------------------
+
+// FailoverOptions are used to configure a failover client and should
+// be passed to NewFailoverClient.
+type FailoverOptions struct {
+	// The master name.
+	MasterName string
+	// A seed list of host:port addresses of sentinel nodes.
+	SentinelAddrs []string
+	// Sentinel password from "requirepass <password>" (if enabled) in Sentinel configuration
+	SentinelPassword string
+
+	// Allows routing read-only commands to the closest master or slave node.
+	// This option only works with NewFailoverClusterClient.
+	RouteByLatency bool
+	// Allows routing read-only commands to the random master or slave node.
+	// This option only works with NewFailoverClusterClient.
+	RouteRandomly bool
+
+	// Route all commands to slave read-only nodes.
+	SlaveOnly bool
+
+	// Following options are copied from Options struct.
+
+	Dialer    func(ctx context.Context, network, addr string) (net.Conn, error)
+	OnConnect func(ctx context.Context, cn *Conn) error
+
+	Username string
+	Password string
+	DB       int
+
+	MaxRetries      int
+	MinRetryBackoff time.Duration
+	MaxRetryBackoff time.Duration
+
+	DialTimeout  time.Duration
+	ReadTimeout  time.Duration
+	WriteTimeout time.Duration
+
+	PoolSize           int
+	MinIdleConns       int
+	MaxConnAge         time.Duration
+	PoolTimeout        time.Duration
+	IdleTimeout        time.Duration
+	IdleCheckFrequency time.Duration
+
+	TLSConfig *tls.Config
+}
+
+func (opt *FailoverOptions) clientOptions() *Options {
+	return &Options{
+		Addr: "FailoverClient",
+
+		Dialer:    opt.Dialer,
+		OnConnect: opt.OnConnect,
+
+		DB:       opt.DB,
+		Username: opt.Username,
+		Password: opt.Password,
+
+		MaxRetries:      opt.MaxRetries,
+		MinRetryBackoff: opt.MinRetryBackoff,
+		MaxRetryBackoff: opt.MaxRetryBackoff,
+
+		DialTimeout:  opt.DialTimeout,
+		ReadTimeout:  opt.ReadTimeout,
+		WriteTimeout: opt.WriteTimeout,
+
+		PoolSize:           opt.PoolSize,
+		PoolTimeout:        opt.PoolTimeout,
+		IdleTimeout:        opt.IdleTimeout,
+		IdleCheckFrequency: opt.IdleCheckFrequency,
+		MinIdleConns:       opt.MinIdleConns,
+		MaxConnAge:         opt.MaxConnAge,
+
+		TLSConfig: opt.TLSConfig,
+	}
+}
+
+func (opt *FailoverOptions) sentinelOptions(addr string) *Options {
+	return &Options{
+		Addr: addr,
+
+		Dialer:    opt.Dialer,
+		OnConnect: opt.OnConnect,
+
+		DB:       0,
+		Password: opt.SentinelPassword,
+
+		MaxRetries:      opt.MaxRetries,
+		MinRetryBackoff: opt.MinRetryBackoff,
+		MaxRetryBackoff: opt.MaxRetryBackoff,
+
+		DialTimeout:  opt.DialTimeout,
+		ReadTimeout:  opt.ReadTimeout,
+		WriteTimeout: opt.WriteTimeout,
+
+		PoolSize:           opt.PoolSize,
+		PoolTimeout:        opt.PoolTimeout,
+		IdleTimeout:        opt.IdleTimeout,
+		IdleCheckFrequency: opt.IdleCheckFrequency,
+		MinIdleConns:       opt.MinIdleConns,
+		MaxConnAge:         opt.MaxConnAge,
+
+		TLSConfig: opt.TLSConfig,
+	}
+}
+
+func (opt *FailoverOptions) clusterOptions() *ClusterOptions {
+	return &ClusterOptions{
+		Dialer:    opt.Dialer,
+		OnConnect: opt.OnConnect,
+
+		Username: opt.Username,
+		Password: opt.Password,
+
+		MaxRedirects: opt.MaxRetries,
+
+		RouteByLatency: opt.RouteByLatency,
+		RouteRandomly:  opt.RouteRandomly,
+
+		MinRetryBackoff: opt.MinRetryBackoff,
+		MaxRetryBackoff: opt.MaxRetryBackoff,
+
+		DialTimeout:  opt.DialTimeout,
+		ReadTimeout:  opt.ReadTimeout,
+		WriteTimeout: opt.WriteTimeout,
+
+		PoolSize:           opt.PoolSize,
+		PoolTimeout:        opt.PoolTimeout,
+		IdleTimeout:        opt.IdleTimeout,
+		IdleCheckFrequency: opt.IdleCheckFrequency,
+		MinIdleConns:       opt.MinIdleConns,
+		MaxConnAge:         opt.MaxConnAge,
+
+		TLSConfig: opt.TLSConfig,
+	}
+}
+
+// NewFailoverClient returns a Redis client that uses Redis Sentinel
+// for automatic failover. It's safe for concurrent use by multiple
+// goroutines.
+func NewFailoverClient(failoverOpt *FailoverOptions) *Client {
+	if failoverOpt.RouteByLatency {
+		panic("to route commands by latency, use NewFailoverClusterClient")
+	}
+	if failoverOpt.RouteRandomly {
+		panic("to route commands randomly, use NewFailoverClusterClient")
+	}
+
+	sentinelAddrs := make([]string, len(failoverOpt.SentinelAddrs))
+	copy(sentinelAddrs, failoverOpt.SentinelAddrs)
+
+	failover := &sentinelFailover{
+		opt:           failoverOpt,
+		sentinelAddrs: sentinelAddrs,
+	}
+
+	opt := failoverOpt.clientOptions()
+	opt.Dialer = masterSlaveDialer(failover)
+	opt.init()
+
+	connPool := newConnPool(opt)
+
+	failover.mu.Lock()
+	failover.onFailover = func(ctx context.Context, addr string) {
+		_ = connPool.Filter(func(cn *pool.Conn) bool {
+			return cn.RemoteAddr().String() != addr
+		})
+	}
+	failover.mu.Unlock()
+
+	c := Client{
+		baseClient: newBaseClient(opt, connPool),
+		ctx:        context.Background(),
+	}
+	c.cmdable = c.Process
+	c.onClose = failover.Close
+
+	return &c
+}
+
+func masterSlaveDialer(
+	failover *sentinelFailover,
+) func(ctx context.Context, network, addr string) (net.Conn, error) {
+	return func(ctx context.Context, network, _ string) (net.Conn, error) {
+		var addr string
+		var err error
+
+		if failover.opt.SlaveOnly {
+			addr, err = failover.RandomSlaveAddr(ctx)
+		} else {
+			addr, err = failover.MasterAddr(ctx)
+			if err == nil {
+				failover.trySwitchMaster(ctx, addr)
+			}
+		}
+
+		if err != nil {
+			return nil, err
+		}
+		if failover.opt.Dialer != nil {
+			return failover.opt.Dialer(ctx, network, addr)
+		}
+		return net.DialTimeout("tcp", addr, failover.opt.DialTimeout)
+	}
+}
+
+//------------------------------------------------------------------------------
+
+// SentinelClient is a client for a Redis Sentinel.
+type SentinelClient struct {
+	*baseClient
+	hooks
+	ctx context.Context
+}
+
+func NewSentinelClient(opt *Options) *SentinelClient {
+	opt.init()
+	c := &SentinelClient{
+		baseClient: &baseClient{
+			opt:      opt,
+			connPool: newConnPool(opt),
+		},
+		ctx: context.Background(),
+	}
+	return c
+}
+
+func (c *SentinelClient) Context() context.Context {
+	return c.ctx
+}
+
+func (c *SentinelClient) WithContext(ctx context.Context) *SentinelClient {
+	if ctx == nil {
+		panic("nil context")
+	}
+	clone := *c
+	clone.ctx = ctx
+	return &clone
+}
+
+func (c *SentinelClient) Process(ctx context.Context, cmd Cmder) error {
+	return c.hooks.process(ctx, cmd, c.baseClient.process)
+}
+
+func (c *SentinelClient) pubSub() *PubSub {
+	pubsub := &PubSub{
+		opt: c.opt,
+
+		newConn: func(ctx context.Context, channels []string) (*pool.Conn, error) {
+			return c.newConn(ctx)
+		},
+		closeConn: c.connPool.CloseConn,
+	}
+	pubsub.init()
+	return pubsub
+}
+
+// Ping is used to test if a connection is still alive, or to
+// measure latency.
+func (c *SentinelClient) Ping(ctx context.Context) *StringCmd {
+	cmd := NewStringCmd(ctx, "ping")
+	_ = c.Process(ctx, cmd)
+	return cmd
+}
+
+// Subscribe subscribes the client to the specified channels.
+// Channels can be omitted to create empty subscription.
+func (c *SentinelClient) Subscribe(ctx context.Context, channels ...string) *PubSub {
+	pubsub := c.pubSub()
+	if len(channels) > 0 {
+		_ = pubsub.Subscribe(ctx, channels...)
+	}
+	return pubsub
+}
+
+// PSubscribe subscribes the client to the given patterns.
+// Patterns can be omitted to create empty subscription.
+func (c *SentinelClient) PSubscribe(ctx context.Context, channels ...string) *PubSub {
+	pubsub := c.pubSub()
+	if len(channels) > 0 {
+		_ = pubsub.PSubscribe(ctx, channels...)
+	}
+	return pubsub
+}
+
+func (c *SentinelClient) GetMasterAddrByName(ctx context.Context, name string) *StringSliceCmd {
+	cmd := NewStringSliceCmd(ctx, "sentinel", "get-master-addr-by-name", name)
+	_ = c.Process(ctx, cmd)
+	return cmd
+}
+
+func (c *SentinelClient) Sentinels(ctx context.Context, name string) *SliceCmd {
+	cmd := NewSliceCmd(ctx, "sentinel", "sentinels", name)
+	_ = c.Process(ctx, cmd)
+	return cmd
+}
+
+// Failover forces a failover as if the master was not reachable, and without
+// asking for agreement to other Sentinels.
+func (c *SentinelClient) Failover(ctx context.Context, name string) *StatusCmd {
+	cmd := NewStatusCmd(ctx, "sentinel", "failover", name)
+	_ = c.Process(ctx, cmd)
+	return cmd
+}
+
+// Reset resets all the masters with matching name. The pattern argument is a
+// glob-style pattern. The reset process clears any previous state in a master
+// (including a failover in progress), and removes every slave and sentinel
+// already discovered and associated with the master.
+func (c *SentinelClient) Reset(ctx context.Context, pattern string) *IntCmd {
+	cmd := NewIntCmd(ctx, "sentinel", "reset", pattern)
+	_ = c.Process(ctx, cmd)
+	return cmd
+}
+
+// FlushConfig forces Sentinel to rewrite its configuration on disk, including
+// the current Sentinel state.
+func (c *SentinelClient) FlushConfig(ctx context.Context) *StatusCmd {
+	cmd := NewStatusCmd(ctx, "sentinel", "flushconfig")
+	_ = c.Process(ctx, cmd)
+	return cmd
+}
+
+// Master shows the state and info of the specified master.
+func (c *SentinelClient) Master(ctx context.Context, name string) *StringStringMapCmd {
+	cmd := NewStringStringMapCmd(ctx, "sentinel", "master", name)
+	_ = c.Process(ctx, cmd)
+	return cmd
+}
+
+// Masters shows a list of monitored masters and their state.
+func (c *SentinelClient) Masters(ctx context.Context) *SliceCmd {
+	cmd := NewSliceCmd(ctx, "sentinel", "masters")
+	_ = c.Process(ctx, cmd)
+	return cmd
+}
+
+// Slaves shows a list of slaves for the specified master and their state.
+func (c *SentinelClient) Slaves(ctx context.Context, name string) *SliceCmd {
+	cmd := NewSliceCmd(ctx, "sentinel", "slaves", name)
+	_ = c.Process(ctx, cmd)
+	return cmd
+}
+
+// CkQuorum checks if the current Sentinel configuration is able to reach the
+// quorum needed to failover a master, and the majority needed to authorize the
+// failover. This command should be used in monitoring systems to check if a
+// Sentinel deployment is ok.
+func (c *SentinelClient) CkQuorum(ctx context.Context, name string) *StringCmd {
+	cmd := NewStringCmd(ctx, "sentinel", "ckquorum", name)
+	_ = c.Process(ctx, cmd)
+	return cmd
+}
+
+// Monitor tells the Sentinel to start monitoring a new master with the specified
+// name, ip, port, and quorum.
+func (c *SentinelClient) Monitor(ctx context.Context, name, ip, port, quorum string) *StringCmd {
+	cmd := NewStringCmd(ctx, "sentinel", "monitor", name, ip, port, quorum)
+	_ = c.Process(ctx, cmd)
+	return cmd
+}
+
+// Set is used in order to change configuration parameters of a specific master.
+func (c *SentinelClient) Set(ctx context.Context, name, option, value string) *StringCmd {
+	cmd := NewStringCmd(ctx, "sentinel", "set", name, option, value)
+	_ = c.Process(ctx, cmd)
+	return cmd
+}
+
+// Remove is used in order to remove the specified master: the master will no
+// longer be monitored, and will totally be removed from the internal state of
+// the Sentinel.
+func (c *SentinelClient) Remove(ctx context.Context, name string) *StringCmd {
+	cmd := NewStringCmd(ctx, "sentinel", "remove", name)
+	_ = c.Process(ctx, cmd)
+	return cmd
+}
+
+//------------------------------------------------------------------------------
+
+type sentinelFailover struct {
+	opt *FailoverOptions
+
+	sentinelAddrs []string
+
+	onFailover func(ctx context.Context, addr string)
+	onUpdate   func(ctx context.Context)
+
+	mu          sync.RWMutex
+	_masterAddr string
+	sentinel    *SentinelClient
+	pubsub      *PubSub
+}
+
+func (c *sentinelFailover) Close() error {
+	c.mu.Lock()
+	defer c.mu.Unlock()
+	if c.sentinel != nil {
+		return c.closeSentinel()
+	}
+	return nil
+}
+
+func (c *sentinelFailover) closeSentinel() error {
+	firstErr := c.pubsub.Close()
+	c.pubsub = nil
+
+	err := c.sentinel.Close()
+	if err != nil && firstErr == nil {
+		firstErr = err
+	}
+	c.sentinel = nil
+
+	return firstErr
+}
+
+func (c *sentinelFailover) RandomSlaveAddr(ctx context.Context) (string, error) {
+	addresses, err := c.slaveAddrs(ctx)
+	if err != nil {
+		return "", err
+	}
+	if len(addresses) == 0 {
+		return c.MasterAddr(ctx)
+	}
+	return addresses[rand.Intn(len(addresses))], nil
+}
+
+func (c *sentinelFailover) MasterAddr(ctx context.Context) (string, error) {
+	c.mu.RLock()
+	sentinel := c.sentinel
+	c.mu.RUnlock()
+
+	if sentinel != nil {
+		addr := c.getMasterAddr(ctx, sentinel)
+		if addr != "" {
+			return addr, nil
+		}
+	}
+
+	c.mu.Lock()
+	defer c.mu.Unlock()
+
+	if c.sentinel != nil {
+		addr := c.getMasterAddr(ctx, c.sentinel)
+		if addr != "" {
+			return addr, nil
+		}
+		_ = c.closeSentinel()
+	}
+
+	for i, sentinelAddr := range c.sentinelAddrs {
+		sentinel := NewSentinelClient(c.opt.sentinelOptions(sentinelAddr))
+
+		masterAddr, err := sentinel.GetMasterAddrByName(ctx, c.opt.MasterName).Result()
+		if err != nil {
+			internal.Logger.Printf(ctx, "sentinel: GetMasterAddrByName master=%q failed: %s",
+				c.opt.MasterName, err)
+			_ = sentinel.Close()
+			continue
+		}
+
+		// Push working sentinel to the top.
+		c.sentinelAddrs[0], c.sentinelAddrs[i] = c.sentinelAddrs[i], c.sentinelAddrs[0]
+		c.setSentinel(ctx, sentinel)
+
+		addr := net.JoinHostPort(masterAddr[0], masterAddr[1])
+		return addr, nil
+	}
+
+	return "", errors.New("redis: all sentinels specified in configuration are unreachable")
+}
+
+func (c *sentinelFailover) slaveAddrs(ctx context.Context) ([]string, error) {
+	c.mu.RLock()
+	sentinel := c.sentinel
+	c.mu.RUnlock()
+
+	if sentinel != nil {
+		addrs := c.getSlaveAddrs(ctx, sentinel)
+		if len(addrs) > 0 {
+			return addrs, nil
+		}
+	}
+
+	c.mu.Lock()
+	defer c.mu.Unlock()
+
+	if c.sentinel != nil {
+		addrs := c.getSlaveAddrs(ctx, c.sentinel)
+		if len(addrs) > 0 {
+			return addrs, nil
+		}
+		_ = c.closeSentinel()
+	}
+
+	for i, sentinelAddr := range c.sentinelAddrs {
+		sentinel := NewSentinelClient(c.opt.sentinelOptions(sentinelAddr))
+
+		slaves, err := sentinel.Slaves(ctx, c.opt.MasterName).Result()
+		if err != nil {
+			internal.Logger.Printf(ctx, "sentinel: Slaves master=%q failed: %s",
+				c.opt.MasterName, err)
+			_ = sentinel.Close()
+			continue
+		}
+
+		// Push working sentinel to the top.
+		c.sentinelAddrs[0], c.sentinelAddrs[i] = c.sentinelAddrs[i], c.sentinelAddrs[0]
+		c.setSentinel(ctx, sentinel)
+
+		addrs := parseSlaveAddrs(slaves)
+		return addrs, nil
+	}
+
+	return []string{}, errors.New("redis: all sentinels specified in configuration are unreachable")
+}
+
+func (c *sentinelFailover) getMasterAddr(ctx context.Context, sentinel *SentinelClient) string {
+	addr, err := sentinel.GetMasterAddrByName(ctx, c.opt.MasterName).Result()
+	if err != nil {
+		internal.Logger.Printf(ctx, "sentinel: GetMasterAddrByName name=%q failed: %s",
+			c.opt.MasterName, err)
+		return ""
+	}
+	return net.JoinHostPort(addr[0], addr[1])
+}
+
+func (c *sentinelFailover) getSlaveAddrs(ctx context.Context, sentinel *SentinelClient) []string {
+	addrs, err := sentinel.Slaves(ctx, c.opt.MasterName).Result()
+	if err != nil {
+		internal.Logger.Printf(ctx, "sentinel: Slaves name=%q failed: %s",
+			c.opt.MasterName, err)
+		return []string{}
+	}
+	return parseSlaveAddrs(addrs)
+}
+
+func parseSlaveAddrs(addrs []interface{}) []string {
+	nodes := make([]string, 0, len(addrs))
+
+	for _, node := range addrs {
+		ip := ""
+		port := ""
+		flags := []string{}
+		lastkey := ""
+		isDown := false
+
+		for _, key := range node.([]interface{}) {
+			switch lastkey {
+			case "ip":
+				ip = key.(string)
+			case "port":
+				port = key.(string)
+			case "flags":
+				flags = strings.Split(key.(string), ",")
+			}
+			lastkey = key.(string)
+		}
+
+		for _, flag := range flags {
+			switch flag {
+			case "s_down", "o_down", "disconnected":
+				isDown = true
+			}
+		}
+
+		if !isDown {
+			nodes = append(nodes, net.JoinHostPort(ip, port))
+		}
+	}
+
+	return nodes
+}
+
+func (c *sentinelFailover) trySwitchMaster(ctx context.Context, addr string) {
+	c.mu.RLock()
+	currentAddr := c._masterAddr
+	c.mu.RUnlock()
+
+	if addr == currentAddr {
+		return
+	}
+
+	c.mu.Lock()
+	defer c.mu.Unlock()
+
+	if addr == c._masterAddr {
+		return
+	}
+	c._masterAddr = addr
+
+	internal.Logger.Printf(ctx, "sentinel: new master=%q addr=%q",
+		c.opt.MasterName, addr)
+	if c.onFailover != nil {
+		c.onFailover(ctx, addr)
+	}
+}
+
+func (c *sentinelFailover) setSentinel(ctx context.Context, sentinel *SentinelClient) {
+	if c.sentinel != nil {
+		panic("not reached")
+	}
+	c.sentinel = sentinel
+	c.discoverSentinels(ctx)
+
+	c.pubsub = sentinel.Subscribe(ctx, "+switch-master", "+slave-reconf-done")
+	go c.listen(c.pubsub)
+}
+
+func (c *sentinelFailover) discoverSentinels(ctx context.Context) {
+	sentinels, err := c.sentinel.Sentinels(ctx, c.opt.MasterName).Result()
+	if err != nil {
+		internal.Logger.Printf(ctx, "sentinel: Sentinels master=%q failed: %s", c.opt.MasterName, err)
+		return
+	}
+	for _, sentinel := range sentinels {
+		vals := sentinel.([]interface{})
+		for i := 0; i < len(vals); i += 2 {
+			key := vals[i].(string)
+			if key == "name" {
+				sentinelAddr := vals[i+1].(string)
+				if !contains(c.sentinelAddrs, sentinelAddr) {
+					internal.Logger.Printf(ctx, "sentinel: discovered new sentinel=%q for master=%q",
+						sentinelAddr, c.opt.MasterName)
+					c.sentinelAddrs = append(c.sentinelAddrs, sentinelAddr)
+				}
+			}
+		}
+	}
+}
+
+func (c *sentinelFailover) listen(pubsub *PubSub) {
+	ctx := context.TODO()
+
+	if c.onUpdate != nil {
+		c.onUpdate(ctx)
+	}
+
+	ch := pubsub.Channel()
+	for msg := range ch {
+		if msg.Channel == "+switch-master" {
+			parts := strings.Split(msg.Payload, " ")
+			if parts[0] != c.opt.MasterName {
+				internal.Logger.Printf(pubsub.getContext(), "sentinel: ignore addr for master=%q", parts[0])
+				continue
+			}
+			addr := net.JoinHostPort(parts[3], parts[4])
+			c.trySwitchMaster(pubsub.getContext(), addr)
+		}
+
+		if c.onUpdate != nil {
+			c.onUpdate(ctx)
+		}
+	}
+}
+
+func contains(slice []string, str string) bool {
+	for _, s := range slice {
+		if s == str {
+			return true
+		}
+	}
+	return false
+}
+
+//------------------------------------------------------------------------------
+
+// NewFailoverClusterClient returns a client that supports routing read-only commands
+// to a slave node.
+func NewFailoverClusterClient(failoverOpt *FailoverOptions) *ClusterClient {
+	sentinelAddrs := make([]string, len(failoverOpt.SentinelAddrs))
+	copy(sentinelAddrs, failoverOpt.SentinelAddrs)
+
+	failover := &sentinelFailover{
+		opt:           failoverOpt,
+		sentinelAddrs: sentinelAddrs,
+	}
+
+	opt := failoverOpt.clusterOptions()
+	opt.ClusterSlots = func(ctx context.Context) ([]ClusterSlot, error) {
+		masterAddr, err := failover.MasterAddr(ctx)
+		if err != nil {
+			return nil, err
+		}
+
+		nodes := []ClusterNode{{
+			Addr: masterAddr,
+		}}
+
+		slaveAddrs, err := failover.slaveAddrs(ctx)
+		if err != nil {
+			return nil, err
+		}
+
+		for _, slaveAddr := range slaveAddrs {
+			nodes = append(nodes, ClusterNode{
+				Addr: slaveAddr,
+			})
+		}
+
+		slots := []ClusterSlot{
+			{
+				Start: 0,
+				End:   16383,
+				Nodes: nodes,
+			},
+		}
+		return slots, nil
+	}
+
+	c := NewClusterClient(opt)
+
+	failover.mu.Lock()
+	failover.onUpdate = func(ctx context.Context) {
+		c.ReloadState(ctx)
+	}
+	failover.mu.Unlock()
+
+	return c
+}
diff --git a/vendor/github.com/go-redis/redis/v7/tx.go b/vendor/github.com/go-redis/redis/v8/tx.go
index 9ae159015e..08d381a9d3 100644
--- a/vendor/github.com/go-redis/redis/v7/tx.go
+++ b/vendor/github.com/go-redis/redis/v8/tx.go
@@ -3,8 +3,8 @@ package redis
 import (
 	"context"
 
-	"github.com/go-redis/redis/v7/internal/pool"
-	"github.com/go-redis/redis/v7/internal/proto"
+	"github.com/go-redis/redis/v8/internal/pool"
+	"github.com/go-redis/redis/v8/internal/proto"
 )
 
 // TxFailedErr transaction redis failed.
@@ -26,7 +26,7 @@ func (c *Client) newTx(ctx context.Context) *Tx {
 	tx := Tx{
 		baseClient: baseClient{
 			opt:      c.opt,
-			connPool: pool.NewStickyConnPool(c.connPool.(*pool.ConnPool), true),
+			connPool: pool.NewStickyConnPool(c.connPool),
 		},
 		hooks: c.hooks.clone(),
 		ctx:   ctx,
@@ -55,11 +55,7 @@ func (c *Tx) WithContext(ctx context.Context) *Tx {
 	return &clone
 }
 
-func (c *Tx) Process(cmd Cmder) error {
-	return c.ProcessContext(c.ctx, cmd)
-}
-
-func (c *Tx) ProcessContext(ctx context.Context, cmd Cmder) error {
+func (c *Tx) Process(ctx context.Context, cmd Cmder) error {
 	return c.hooks.process(ctx, cmd, c.baseClient.process)
 }
 
@@ -67,52 +63,45 @@ func (c *Tx) ProcessContext(ctx context.Context, cmd Cmder) error {
 // for conditional execution if there are any keys.
 //
 // The transaction is automatically closed when fn exits.
-func (c *Client) Watch(fn func(*Tx) error, keys ...string) error {
-	return c.WatchContext(c.ctx, fn, keys...)
-}
-
-func (c *Client) WatchContext(ctx context.Context, fn func(*Tx) error, keys ...string) error {
+func (c *Client) Watch(ctx context.Context, fn func(*Tx) error, keys ...string) error {
 	tx := c.newTx(ctx)
+	defer tx.Close(ctx)
 	if len(keys) > 0 {
-		if err := tx.Watch(keys...).Err(); err != nil {
-			_ = tx.Close()
+		if err := tx.Watch(ctx, keys...).Err(); err != nil {
 			return err
 		}
 	}
-
-	err := fn(tx)
-	_ = tx.Close()
-	return err
+	return fn(tx)
 }
 
 // Close closes the transaction, releasing any open resources.
-func (c *Tx) Close() error {
-	_ = c.Unwatch().Err()
+func (c *Tx) Close(ctx context.Context) error {
+	_ = c.Unwatch(ctx).Err()
 	return c.baseClient.Close()
 }
 
 // Watch marks the keys to be watched for conditional execution
 // of a transaction.
-func (c *Tx) Watch(keys ...string) *StatusCmd {
+func (c *Tx) Watch(ctx context.Context, keys ...string) *StatusCmd {
 	args := make([]interface{}, 1+len(keys))
 	args[0] = "watch"
 	for i, key := range keys {
 		args[1+i] = key
 	}
-	cmd := NewStatusCmd(args...)
-	_ = c.Process(cmd)
+	cmd := NewStatusCmd(ctx, args...)
+	_ = c.Process(ctx, cmd)
 	return cmd
 }
 
 // Unwatch flushes all the previously watched keys for a transaction.
-func (c *Tx) Unwatch(keys ...string) *StatusCmd {
+func (c *Tx) Unwatch(ctx context.Context, keys ...string) *StatusCmd {
 	args := make([]interface{}, 1+len(keys))
 	args[0] = "unwatch"
 	for i, key := range keys {
 		args[1+i] = key
 	}
-	cmd := NewStatusCmd(args...)
-	_ = c.Process(cmd)
+	cmd := NewStatusCmd(ctx, args...)
+	_ = c.Process(ctx, cmd)
 	return cmd
 }
 
@@ -130,8 +119,8 @@ func (c *Tx) Pipeline() Pipeliner {
 
 // Pipelined executes commands queued in the fn outside of the transaction.
 // Use TxPipelined if you need transactional behavior.
-func (c *Tx) Pipelined(fn func(Pipeliner) error) ([]Cmder, error) {
-	return c.Pipeline().Pipelined(fn)
+func (c *Tx) Pipelined(ctx context.Context, fn func(Pipeliner) error) ([]Cmder, error) {
+	return c.Pipeline().Pipelined(ctx, fn)
 }
 
 // TxPipelined executes commands queued in the fn in the transaction.
@@ -142,8 +131,8 @@ func (c *Tx) Pipelined(fn func(Pipeliner) error) ([]Cmder, error) {
 // Exec always returns list of commands. If transaction fails
 // TxFailedErr is returned. Otherwise Exec returns an error of the first
 // failed command or nil.
-func (c *Tx) TxPipelined(fn func(Pipeliner) error) ([]Cmder, error) {
-	return c.TxPipeline().Pipelined(fn)
+func (c *Tx) TxPipelined(ctx context.Context, fn func(Pipeliner) error) ([]Cmder, error) {
+	return c.TxPipeline().Pipelined(ctx, fn)
 }
 
 // TxPipeline creates a pipeline. Usually it is more convenient to use TxPipelined.
diff --git a/vendor/github.com/go-redis/redis/v7/universal.go b/vendor/github.com/go-redis/redis/v8/universal.go
index 005ca682c5..5f0e1e33a5 100644
--- a/vendor/github.com/go-redis/redis/v7/universal.go
+++ b/vendor/github.com/go-redis/redis/v8/universal.go
@@ -20,23 +20,29 @@ type UniversalOptions struct {
 
 	// Common options.
 
-	Dialer             func(ctx context.Context, network, addr string) (net.Conn, error)
-	OnConnect          func(*Conn) error
-	Username           string
-	Password           string
-	MaxRetries         int
-	MinRetryBackoff    time.Duration
-	MaxRetryBackoff    time.Duration
-	DialTimeout        time.Duration
-	ReadTimeout        time.Duration
-	WriteTimeout       time.Duration
+	Dialer    func(ctx context.Context, network, addr string) (net.Conn, error)
+	OnConnect func(ctx context.Context, cn *Conn) error
+
+	Username         string
+	Password         string
+	SentinelPassword string
+
+	MaxRetries      int
+	MinRetryBackoff time.Duration
+	MaxRetryBackoff time.Duration
+
+	DialTimeout  time.Duration
+	ReadTimeout  time.Duration
+	WriteTimeout time.Duration
+
 	PoolSize           int
 	MinIdleConns       int
 	MaxConnAge         time.Duration
 	PoolTimeout        time.Duration
 	IdleTimeout        time.Duration
 	IdleCheckFrequency time.Duration
-	TLSConfig          *tls.Config
+
+	TLSConfig *tls.Config
 
 	// Only cluster clients.
 
@@ -100,9 +106,10 @@ func (o *UniversalOptions) Failover() *FailoverOptions {
 		Dialer:    o.Dialer,
 		OnConnect: o.OnConnect,
 
-		DB:       o.DB,
-		Username: o.Username,
-		Password: o.Password,
+		DB:               o.DB,
+		Username:         o.Username,
+		Password:         o.Password,
+		SentinelPassword: o.SentinelPassword,
 
 		MaxRetries:      o.MaxRetries,
 		MinRetryBackoff: o.MinRetryBackoff,
@@ -168,19 +175,20 @@ type UniversalClient interface {
 	Cmdable
 	Context() context.Context
 	AddHook(Hook)
-	Watch(fn func(*Tx) error, keys ...string) error
-	Do(args ...interface{}) *Cmd
-	DoContext(ctx context.Context, args ...interface{}) *Cmd
-	Process(cmd Cmder) error
-	ProcessContext(ctx context.Context, cmd Cmder) error
-	Subscribe(channels ...string) *PubSub
-	PSubscribe(channels ...string) *PubSub
+	Watch(ctx context.Context, fn func(*Tx) error, keys ...string) error
+	Do(ctx context.Context, args ...interface{}) *Cmd
+	Process(ctx context.Context, cmd Cmder) error
+	Subscribe(ctx context.Context, channels ...string) *PubSub
+	PSubscribe(ctx context.Context, channels ...string) *PubSub
 	Close() error
+	PoolStats() *PoolStats
 }
 
-var _ UniversalClient = (*Client)(nil)
-var _ UniversalClient = (*ClusterClient)(nil)
-var _ UniversalClient = (*Ring)(nil)
+var (
+	_ UniversalClient = (*Client)(nil)
+	_ UniversalClient = (*ClusterClient)(nil)
+	_ UniversalClient = (*Ring)(nil)
+)
 
 // NewUniversalClient returns a new multi client. The type of client returned depends
 // on the following three conditions: