Volumes stuck in attaching state and volume limitation from CSINode object exceeded in OpenShift Container Platform 4

Solution Verified - Updated -

Issue

  • When creating many pods with generic ephemeral volumes configured, we find pods stuck in ContainerCreating state and events reported as shown below.

    AttachVolume.Attach failed for volume "pvc-1dafe8d0-942c-46ee-9e75-eef46d532a06" : rpc error: code = Internal desc = Could not attach volume "vol-<random>" to node "i-<random>": attachment of disk "vol-<random>" failed, expected device to be attached but was attaching

  • When scaling a new Node in OpenShift 4, we can observe pods being assigned shortly after it reports Ready state that exceed the configured limit for volumes within CSINode object.

Environment

  • Red Hat OpenShift Container Platform (RHOCP)
    • 4.15
    • 4.16

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