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  1. OpenShift Bugs
  2. OCPBUGS-29497

SingleReplica HCPs can not upgrade on cluster with nodes in a single zone

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    • Icon: Bug Bug
    • Resolution: Unresolved
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    • 4.15, 4.16, 4.17.0, 4.18.0
    • HyperShift
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      While updating an HC with controllerAvailabilityPolicy of SingleReplica, the HCP doesn't fully rollout with 3 pod stuck in Pending

      multus-admission-controller-5b5c95684b-v5qgd          0/2     Pending   0               4m36s
network-node-identity-7b54d84df4-dxx27                0/3     Pending   0               4m12s
ovnkube-control-plane-647ffb5f4d-hk6fg                0/3     Pending   0               4m21s

      This is because these deployment all have requiredDuringSchedulingIgnoredDuringExecution zone anti-affinity and maxUnavailable: 25% (i.e. 1)

      Thus the old pod blocks scheduling of the new pod.

              cewong@redhat.com Cesar Wong
              sjenning Seth Jennings
              Feilian Xie Feilian Xie
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                Created:
                Updated: