[8.x] [Failure Store] Expose failure store lifecycle information via the GET data stream API (#126668)
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…ET` data stream API (elastic#126668) To retrieve the effective configuration you need to use the `GET` data streams API, for example, if a data stream has empty data stream options, it might still have failure store enabled from a cluster setting. The failure store is managed by default with a lifecycle with infinite (for now) retention, so the response will look like this: ``` GET _data_stream/* { "data_streams": [ { "name": "my-data-stream", "timestamp_field": { "name": "@timestamp" }, ..... "failure_store": { "enabled": true, "lifecycle": { "enabled": true }, "rollover_on_write": false, "indices": [ { "index_name": ".fs-my-data-stream-2099.03.08-000003", "index_uuid": "PA_JquKGSiKcAKBA8DJ5gw", "managed_by": "Data stream lifecycle" } ] } },... ] ``` In case there is a failure indexed managed by ILM the failure index info will be displayed as follows. ``` { "index_name": ".fs-my-data-stream-2099.03.08-000002", "index_uuid": "PA_JquKGSiKcAKBA8DJ5gw", "prefer_ilm": true, "ilm_policy": "my-lifecycle-policy", "managed_by": "Index Lifecycle Management" } ``` (cherry picked from commit db2992f) # Conflicts: # modules/data-streams/src/test/java/org/elasticsearch/datastreams/action/GetDataStreamsResponseTests.java # server/src/main/java/org/elasticsearch/action/datastreams/GetDataStreamAction.java
gmarouli
added
>non-issue
:Data Management/Data streams
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