Pods stuck in Pending state with event "failed to configure pod interface: timed out waiting for pod flows for pod"

Solution Verified - Updated -


  • Pods are not getting IPs:
NAME                                          READY  STATUS   RESTARTS  AGE    IP           NODE
alertmanager-main-0                           0/5    Pending  0         10m                 openshift-dev-hw62p-worker-xbrn9                              
  • Multiple pods are in pending state with the below event:
Warning  FailedCreatePodSandBox  4m28s (x2109 over 13h)  kubelet  (combined from similar events): Failed to create pod sandbox: rpc error: code = Unknown desc = failed to create pod network sandbox k8s_alertmanager-main-1_openshift-monitoring_ab733b3e-c564-41ae-8f28-c18e70109ebe_0(6371be1f0859a2ab0896b30e82265c8122abc29079b737953fbef881a28e82bc): [openshift-monitoring/alertmanager-main-1:ovn-kubernetes]: error adding container to network "ovn-kubernetes": CNI request failed with status 400: '[openshift-monitoring/alertmanager-main-1] failed to configure pod interface: timed out waiting for pod flows for pod: alertmanager-main-1, error: timed out waiting for the condition


  • Red Hat OpenShift Container Platform (RHOCP)
    • 4.6
    • 4.7

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