Graceful Queues: Issue Indexing and Tasks (#9363)

* Queue: Add generic graceful queues with settings

* Queue & Setting: Add worker pool implementation

* Queue: Add worker settings

* Queue: Make resizing worker pools

* Queue: Add name variable to queues

* Queue: Add monitoring

* Queue: Improve logging

* Issues: Gracefulise the issues indexer

Remove the old now unused specific queues

* Task: Move to generic queue and gracefulise

* Issues: Standardise the issues indexer queue settings

* Fix test

* Queue: Allow Redis to connect to unix

* Prevent deadlock during early shutdown of issue indexer

* Add MaxWorker settings to queues

* Merge branch 'master' into graceful-queues

* Update modules/indexer/issues/indexer.go

Co-Authored-By: guillep2k <18600385+guillep2k@users.noreply.github.com>

* Update modules/indexer/issues/indexer.go

Co-Authored-By: guillep2k <18600385+guillep2k@users.noreply.github.com>

* Update modules/queue/queue_channel.go

Co-Authored-By: guillep2k <18600385+guillep2k@users.noreply.github.com>

* Update modules/queue/queue_disk.go

* Update modules/queue/queue_disk_channel.go

Co-Authored-By: guillep2k <18600385+guillep2k@users.noreply.github.com>

* Rename queue.Description to queue.ManagedQueue as per @guillep2k

* Cancel pool workers when removed

* Remove dependency on queue from setting

* Update modules/queue/queue_redis.go

Co-Authored-By: guillep2k <18600385+guillep2k@users.noreply.github.com>

* As per @guillep2k add mutex locks on shutdown/terminate

* move unlocking out of setInternal

* Add warning if number of workers < 0

* Small changes as per @guillep2k

* No redis host specified not found

* Clean up documentation for queues

* Update docs/content/doc/advanced/config-cheat-sheet.en-us.md

* Update modules/indexer/issues/indexer_test.go

* Ensure that persistable channel queue is added to manager

* Rename QUEUE_NAME REDIS_QUEUE_NAME

* Revert "Rename QUEUE_NAME REDIS_QUEUE_NAME"

This reverts commit 1f83b4fc9b9dabda186257b38c265fe7012f90df.

Co-authored-by: guillep2k <18600385+guillep2k@users.noreply.github.com>
Co-authored-by: Lauris BH <lauris@nix.lv>
Co-authored-by: techknowlogick <matti@mdranta.net>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>

1 files changed, 18 insertions, 23 deletions

diff --git a/modules/task/task.go b/modules/task/task.go
index 64744afe7a..416f0c696a 100644
--- a/modules/task/task.go
+++ b/modules/task/task.go
@@ -8,14 +8,15 @@ import (
 	"fmt"
 
 	"code.gitea.io/gitea/models"
+	"code.gitea.io/gitea/modules/graceful"
 	"code.gitea.io/gitea/modules/log"
 	"code.gitea.io/gitea/modules/migrations/base"
-	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/queue"
 	"code.gitea.io/gitea/modules/structs"
 )
 
 // taskQueue is a global queue of tasks
-var taskQueue Queue
+var taskQueue queue.Queue
 
 // Run a task
 func Run(t *models.Task) error {
@@ -23,38 +24,32 @@ func Run(t *models.Task) error {
 	case structs.TaskTypeMigrateRepo:
 		return runMigrateTask(t)
 	default:
-		return fmt.Errorf("Unknow task type: %d", t.Type)
+		return fmt.Errorf("Unknown task type: %d", t.Type)
 	}
 }
 
 // Init will start the service to get all unfinished tasks and run them
 func Init() error {
-	switch setting.Task.QueueType {
-	case setting.ChannelQueueType:
-		taskQueue = NewChannelQueue(setting.Task.QueueLength)
-	case setting.RedisQueueType:
-		var err error
-		addrs, pass, idx, err := parseConnStr(setting.Task.QueueConnStr)
-		if err != nil {
-			return err
-		}
-		taskQueue, err = NewRedisQueue(addrs, pass, idx)
-		if err != nil {
-			return err
-		}
-	default:
-		return fmt.Errorf("Unsupported task queue type: %v", setting.Task.QueueType)
+	taskQueue = queue.CreateQueue("task", handle, &models.Task{})
+
+	if taskQueue == nil {
+		return fmt.Errorf("Unable to create Task Queue")
 	}
 
-	go func() {
-		if err := taskQueue.Run(); err != nil {
-			log.Error("taskQueue.Run end failed: %v", err)
-		}
-	}()
+	go graceful.GetManager().RunWithShutdownFns(taskQueue.Run)
 
 	return nil
 }
 
+func handle(data ...queue.Data) {
+	for _, datum := range data {
+		task := datum.(*models.Task)
+		if err := Run(task); err != nil {
+			log.Error("Run task failed: %v", err)
+		}
+	}
+}
+
 // MigrateRepository add migration repository to task
 func MigrateRepository(doer, u *models.User, opts base.MigrateOptions) error {
 	task, err := models.CreateMigrateTask(doer, u, opts)