[Request]: Document excluded data tiers setting

[bmorelli25]

Description

In a Cross Cluster Search (CCS) environment, it's possible for different clusters to serve different data tiers in responses.

If one of the requested clusters responds slowly with data from the frozen tier, this can cause a timeout at the proxy after 320s, and 502 responses presented as failure toast messages in the UI with no data loaded.

Solution? Don't allow APM to query the frozen tier.

Resources

• Eng issue: Do not allow APM UI to query frozen tier kibana#190559
• Implementation PR: [APM] Use excluded data tiers setting kibana#192373

Which documentation set does this change impact?

Stateful and Serverless

Feature differences

@crespocarlos to clarify

What release is this request related to?

8.16

Collaboration model

The documentation team

Point of contact.

Main contact: @crespocarlos