Update history_redis.lua

diff --git a/src/plugins/lua/history_redis.lua b/src/plugins/lua/history_redis.lua
index 3eecd12ee5e71b13362a2ca4065f7e15daafd748..fff9f46b371931df3cc4241db70a18d21d206755 100644 (file)
--- a/src/plugins/lua/history_redis.lua
+++ b/src/plugins/lua/history_redis.lua
@@ -21,7 +21,7 @@ if confighelp then
 redis_history {
   # History key name
   key_prefix = 'rs_history{{HOSTNAME}}{{COMPRESS}}';
-  # History expire in seconds
+  # Expire in seconds for inactive keys, default to 5 days
   expire = 432000;
   # History rows limit
   nrows = 200;