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  1. OpenShift Bugs
  2. OCPBUGS-35316

Live migration gets stuck when the ConfigMap MTU is absent

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      Description of problem:

      Live migration gets stuck when the ConfigMap MTU is absent. The ConfigMap mtu should be created by the mtu-prober job at the installation time since 4.11. But if the cluster was upgrade from a very early releases, such as 4.4.4, the ConfigMap mtu may be absent.

      Version-Release number of selected component (if applicable):

      4.16.rc2

      How reproducible:

       

      Steps to Reproduce:

      1. build a 4.16 cluster with OpenShiftSDN
2. remove the configmap mtu from the namespace cluster-network-operator.
3. start live migration.

      Actual results:

      Live migration gets stuck with error

NetworkTypeMigrationFailed
Failed to process SDN live migration (configmaps "mtu" not found)

      Expected results:

      Live migration finished successfully.

      Additional info:

      A workaround is to create the configmap mtu manually before starting live migration.

              pliurh Peng Liu
              pliurh Peng Liu
              Weibin Liang Weibin Liang
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                Created:
                Updated:
                Resolved: