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Add APM Server known issue for TBS #4862

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@marclop marclop commented Apr 1, 2025

Description

Add known issue for TBS.

Documentation sets edited in this PR

Check all that apply.

  • Stateful (docs/en/observability/*)
  • Serverless (docs/en/serverless/*)
  • Integrations Developer Guide (docs/en/integrations/*)
  • None of the above

Related issue

Counter part to elastic/apm-server#16393.

Checklist

  • Product/Engineering Review
  • Writer Review

Follow-up tasks

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  • This PR does not need to be ported to another doc set because:
    • The concepts in this PR only apply to one doc set (serverless or stateful)
    • The PR contains edits to both doc sets (serverless and stateful)
  • This PR needs to be ported to another doc set:
    • Port to stateful docs: <link to PR or tracking issue>
    • Port to serverless docs: <link to PR or tracking issue>

Signed-off-by: Marc Lopez Rubio <[email protected]>
@marclop marclop added backport-8.15 Automated backport with mergify backport-8.x Automated backport to the 8.x branch with mergify backport-8.16 Automated backport with mergify backport-8.17 Automated backport with mergify backport-8.18 Automated backport to the 8.18 branch labels Apr 1, 2025
@marclop marclop requested a review from a team as a code owner April 1, 2025 06:38
@marclop marclop requested a review from carsonip April 1, 2025 06:38
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Some small suggestions below.

[discrete]
== Tail Sampling may not compact / expired TTLs as quickly as desired, causing increased storage usage.

_Elastic Stack versions: 8.0.0+ < 9.0**_
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This might be clearer:

Suggested change
_Elastic Stack versions: 8.0.0+ < 9.0**_
_Elastic Stack versions: All 8.x versions_


_Elastic Stack versions: 8.0.0+ < 9.0**_

There are some issues with the Tail Sampling implementation in versions 8.0.0+ < 9.0 that may cause the buffered traces to not be compacted or expired as quickly as desired. This can lead to increased storage usage for longer than the default 30m TTL.
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Suggested change
There are some issues with the Tail Sampling implementation in versions 8.0.0+ < 9.0 that may cause the buffered traces to not be compacted or expired as quickly as desired. This can lead to increased storage usage for longer than the default 30m TTL.
There are some issues with the tail sampling implementation in all 8.x versions that may prevent buffered traces from being compacted or expired as quickly as expected. This can lead to increased storage usage for longer than the default 30m TTL.

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