Description of problem: HPA fails as no pod metrics are gathered by the openshift-metrics-server.
`oc get/describe hpa <HPA>``shows cpu/memory metrics as `<unknown>`.
- oc get hpa --all-namespaces
- oc plugin sos -n openshift-metrics-server
Version-Release number of selected component (if applicable): v3.11.104
How reproducible: issue shows up frequently, and seems to affect all namespaces randomly.
Steps to Reproduce:
Actual results: metrics-server is apparently failing to gather pod metrics.
Expected results: pod metrics to be collected and HPA to work.
- Similar issue to the one described in https://bugzilla.redhat.com/show_bug.cgi?id=1690034
- The issue is having an impact on the production environment.
*** This bug has been marked as a duplicate of bug 1593634 ***