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Bug
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Resolution: Unresolved
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Normal
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None
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4.14
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Moderate
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No
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8
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MON Sprint 245, MON Sprint 249, MON Sprint 256, MON Sprint 258, MON Sprint 260, MON Sprint 262
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6
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False
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Description of problem
The 4.14.0-ec.4 monitoring operator makes Update calls for its Prometheus resource about once a minute, even when there are no changes being requested.
Version-Release number of selected component (if applicable):
At least 4.14.0-ec.4. I have not looked in other versions.
How reproducible:
Seen in build02 and confirmed in the first ec.4 CI run I checked, so likely very reproduceable.
Steps to Reproduce
1. Run ec.4 CI.
2. Check Kube API server audit logs:
$ curl -s https://gcsweb-ci.apps.ci.l2s4.p1.openshiftapps.com/gcs/origin-ci-test/logs/periodic-ci-openshift-release-master-nightly-4.14-e2e-aws-ovn-serial/1685027676433158144/artifacts/e2e-aws-ovn-serial/gather-audit-logs/artifacts/audit-logs.tar | tar -xz --strip-components=2 $ zgrep -h '"resource":"prometheuses"' kube-apiserver/*.log.gz | jq -r 'select(.verb == "update" and .objectRef.subresource != "status") | .stageTimestamp + " " + (.responseStatus.code | tostring) + " " + .user.username' | sort
Actual results
2023-07-28T21:10:30.455712Z 200 system:serviceaccount:openshift-monitoring:cluster-monitoring-operator 2023-07-28T21:11:39.629004Z 200 system:serviceaccount:openshift-monitoring:cluster-monitoring-operator 2023-07-28T21:11:58.727870Z 200 system:serviceaccount:openshift-monitoring:cluster-monitoring-operator 2023-07-28T21:13:24.616877Z 200 system:serviceaccount:openshift-monitoring:cluster-monitoring-operator 2023-07-28T21:13:43.859596Z 200 system:serviceaccount:openshift-monitoring:cluster-monitoring-operator 2023-07-28T21:14:51.770214Z 200 system:serviceaccount:openshift-monitoring:cluster-monitoring-operator 2023-07-28T21:15:10.524179Z 200 system:serviceaccount:openshift-monitoring:cluster-monitoring-operator ...
Expected results
Only update calls when a change needs to be pushed to the resource, to save the network and API-server overhead of no-op update calls.
- is depended on by
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MON-3719 Write library-go's resourceapply utils for the CR managed by CMO
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- To Do
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- links to
