Add configuration suggestion to `druid.indexer.storage.type` (#11304)
diff --git a/docs/configuration/index.md b/docs/configuration/index.md
index f5d0329..2c09b89 100644
--- a/docs/configuration/index.md
+++ b/docs/configuration/index.md
@@ -975,7 +975,7 @@
|Property|Description|Default|
|--------|-----------|-------|
|`druid.indexer.runner.type`|Choices "local" or "remote". Indicates whether tasks should be run locally or in a distributed environment. Experimental task runner "httpRemote" is also available which is same as "remote" but uses HTTP to interact with Middle Managers instead of Zookeeper.|local|
-|`druid.indexer.storage.type`|Choices are "local" or "metadata". Indicates whether incoming tasks should be stored locally (in heap) or in metadata storage. Storing incoming tasks in metadata storage allows for tasks to be resumed if the Overlord should fail.|local|
+|`druid.indexer.storage.type`|Choices are "local" or "metadata". Indicates whether incoming tasks should be stored locally (in heap) or in metadata storage. "local" is mainly for internal testing while "metadata" is recommended in production because storing incoming tasks in metadata storage allows for tasks to be resumed if the Overlord should fail.|local|
|`druid.indexer.storage.recentlyFinishedThreshold`|A duration of time to store task results.|PT24H|
|`druid.indexer.tasklock.forceTimeChunkLock`|_**Setting this to false is still experimental**_<br/> If set, all tasks are enforced to use time chunk lock. If not set, each task automatically chooses a lock type to use. This configuration can be overwritten by setting `forceTimeChunkLock` in the [task context](../ingestion/tasks.md#context). See [Task Locking & Priority](../ingestion/tasks.md#context) for more details about locking in tasks.|true|
|`druid.indexer.task.default.context`|Default task context that is applied to all tasks submitted to the Overlord. Any default in this config does not override neither the context values the user provides nor `druid.indexer.tasklock.forceTimeChunkLock`.|empty context|
