[8.x](backport #41449) Use optional values for docker memory metrics #41503
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* use opt values for docker memory metrics * fix vars, comments * add changelog * spelling (cherry picked from commit 249d0dc)
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This pull request has not been merged yet. Could you please review and merge it @fearful-symmetry? 🙏 |
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This pull request has not been merged yet. Could you please review and merge it @fearful-symmetry? 🙏 |
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This pull request is now in conflicts. Could you fix it? 🙏 |
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Proposed commit message
Closes #40060
This deals with an issue where we were reporting docker memory
rssmetrics even though none exist under cgroups V2. This takes the easy way out by just changing the hashmaps to use option types, so we don't report0values when none should exist.I'm not sure there's a better way to do this. As far as I can tell, there's no similar metrics in Docker's cgroups V2 reporting, and in my experience trying to be clever and derive a substitute value usually backfires for heterogeneous monitoring setups.
Checklist
CHANGELOG.next.asciidocorCHANGELOG-developer.next.asciidoc.Disruptive User Impact
In cases where the docker/memory metrics were reporting an invalid
0, they will not not report any value at all.This is an automatic backport of pull request #41449 done by [Mergify](https://mergify.com).