All payload components should request a reasonable minimum CPU and p90 memory usage https://github.com/openshift/enhancements/blob/master/CONVENTIONS.md#resources-and-limits The cluster-autoscaler-default deploys by default without such CPU and memory. A reasonable default must be provided when the autoscaler is created if user does not provide one (this causes the autoscaler to be in best-effort). Referenced from the new e2e test which gates components without resource requests and enforces the resource conventions.
Failed to verify, autoscaler po stuck in pending status. clusterversion: 4.8.0-0.nightly-2021-04-15-202330 steps: 1. create clusterautoscaler apiVersion: "autoscaling.openshift.io/v1" kind: "ClusterAutoscaler" metadata: name: "default" spec: resourceLimits: maxNodesTotal: 10 scaleDown: enabled: true delayAfterAdd: 10s delayAfterDelete: 10s delayAfterFailure: 10s unneededTime: 10s 2.check autoscaler pod, stuck in pending $ oc get po NAME READY STATUS RESTARTS AGE cluster-autoscaler-default-56659849fc-b49rk 0/1 Pending 0 5m46s cluster-autoscaler-default-74f84d9957-dp8xk 1/1 Running 0 5m37s cluster-autoscaler-operator-844d8f7b96-srq2v 2/2 Running 0 8m28s cluster-baremetal-operator-84f7c56bbc-j9v52 2/2 Running 0 79m machine-api-controllers-685988fb5d-2k5tf 7/7 Running 0 85m machine-api-operator-6cbcdcd4cd-l27jd 2/2 Running 0 85m $ oc describe po cluster-autoscaler-default-56659849fc-b49rk Requests: cpu: 20Mi memory: 10m maybe should: cpu: 10m memory: 20Mi
$ oc describe po cluster-autoscaler-default-56659849fc-b49rk Events: Type Reason Age From Message ---- ------ ---- ---- ------- Warning FailedScheduling 6m12s default-scheduler 0/6 nodes are available: 3 Insufficient cpu, 3 node(s) didn't match Pod's node affinity/selector. Warning FailedScheduling 6m11s default-scheduler 0/6 nodes are available: 3 Insufficient cpu, 3 node(s) didn't match Pod's node affinity/selector.
Moving back to POST so I can attach PR removing the test-suite exception too.
Verified clusterversion: 4.8.0-0.nightly-2021-04-20-195442 # oc get po NAME READY STATUS RESTARTS AGE cluster-autoscaler-default-56fc5bc88c-zqqtf 1/1 Running 0 2m41s resources: requests: cpu: 10m memory: 20Mi
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory (Moderate: OpenShift Container Platform 4.8.2 bug fix and security update), and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHSA-2021:2438