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Scenario #387
Storage
Kubernetes v1.22, on-prem CSI

PVC Deleted While Volume Still Mounted

PVC deletion didn’t unmount volume due to finalizer stuck on pod.

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What Happened

Pod was terminating but stuck, so volume detach never happened.

Diagnosis Steps
  • 1PVC deleted, but disk remained attached.
  • 2Pod in Terminating state for hours.
Root Cause

Finalizer logic bug in kubelet.

Fix/Workaround
• Force deleted pod, manually detached volume.
Lessons Learned

Volume lifecycle is tied to pod finalization.

How to Avoid
  • 1Monitor long-running Terminating pods.
  • 2Use proper finalizer cleanup logic.
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