Cherry-pick #19181 to 7.x: Cache error responses for cloudfoundry apps metadata#19638
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jsoriano merged 1 commit intoelastic:7.xfrom Jul 6, 2020
Merged
Cherry-pick #19181 to 7.x: Cache error responses for cloudfoundry apps metadata#19638jsoriano merged 1 commit intoelastic:7.xfrom
jsoriano merged 1 commit intoelastic:7.xfrom
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Cache error responses when requesting Cloud Foundry apps metadata to avoid hitting continuously the API when there are missing applications. (cherry picked from commit 9c0b63d)
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Cherry-pick of PR #19181 to 7.x branch. Original message:
What does this PR do?
Cache error responses when requesting Cloud Foundry apps metadata to
avoid hitting continuously the API when there are failures.
The original motivation for this change was to handle
AppNotFounderrors,but the truth is that continuously retrying on any error is not very good, so
this change effectively introduces a delay between retries on any error from
the API. It looks safer by now. We can reconsider this in the future if we see
that some other error should be handled in a different way.
An specific flag
cache_retry_delayis also added to configure how long Beatsshould wait before retrying again in case of error.
Why is it important?
Sometimes events are received for apps that cannot be found on the API, on
these cases Beats continuously hit the API to try to get the metadata. This
provokes unnecessary load on API servers of big deployments.
Checklist
I have made corresponding change to the default configuration filesCHANGELOG.next.asciidocorCHANGELOG-developer.next.asciidoc.