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Why are the file systems for worker nodes changed to read-only?

Why are the file systems for worker nodes changed to read-only?

Classic infrastructure

You might see one of the following symptoms {: #stuck_creating_state}:

  • When you run oc get pods -o wide, you see that multiple pods that are running on the same worker node are stuck in the ContainerCreating state.
  • When you run a oc describe command, you see the following error in the Events section: MountVolume.SetUp failed for volume ... read-only file system.

The file system on the worker node is read-only.

Back up your data and reload your worker node.

  1. Back up any data that might be stored on the worker node or in your containers.
  2. For a short-term fix to the existing worker node, reload the worker node.
    ibmcloud oc worker reload --cluster <cluster_name> --worker <worker_ID>
    

For a long-term fix, update the flavor of your worker pool.