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[8.12] Add known issue for Fleet setup > 1000 policies (backport #825) #831

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Jan 18, 2024
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[8.12] Add known issue for Fleet setup > 1000 policies (backport #825) #831

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27 changes: 27 additions & 0 deletions docs/en/ingest-management/release-notes/release-notes-8.12.asciidoc
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Expand Up @@ -60,6 +60,33 @@ sudo systemctl start elastic-agent

====


[[known-issue-sec8366]]
.{fleet} setup can fail when there are more than one thousand {agent} policies
[%collapsible]
====

*Details*

When you set up {fleet} with a very high volume of {agent} policies, one thousand or more, you may encounter an error similar to the following:

[source,console]
----
[ERROR][plugins.fleet] Unknown error happened while checking Uninstall Tokens validity: 'ResponseError: all shards failed: search_phase_execution_exception
Caused by:
too_many_nested_clauses: Query contains too many nested clauses; maxClauseCount is set to 5173
----

The exact number of {agent} policies required to cause the error depends in part on the size of the {es} cluster, but generally it can happen with volumes above approximately one thousand policies.

*Impact* +

Currently there is no workaround for the issue but a fix is planned to be included in the next version 8.12 release.

Note that according to our <<agent-policy-scaling-recommendations,policy scaling recommendations>>, the current recommended maximum number of {agent} policies supported by {fleet} is 500.

====

[discrete]
[[new-features-8.12.0]]
=== New features
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