Bug 1758543

Summary: Fix block device reconstruction
Product: OpenShift Container Platform Reporter: Jan Safranek <jsafrane>
Component: StorageAssignee: Jan Safranek <jsafrane>
Status: CLOSED ERRATA QA Contact: Liang Xia <lxia>
Severity: high Docs Contact:
Priority: high    
Version: 4.3.0CC: aos-bugs, aos-storage-staff
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Target Release: 4.3.0   
Hardware: Unspecified   
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Last Closed: 2020-05-13 21:26:51 UTC Type: Bug
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Description Jan Safranek 2019-10-04 13:25:46 UTC 
When a pod with a block volume is deleted while kubelet is down (e.g. whole node is powered off), newly started kubelet does not clean up the device symlinks.

It is reported upstream: https://github.com/kubernetes/kubernetes/issues/83445

We need to backport at least these PRs when they're merged upstream:

https://github.com/kubernetes/kubernetes/pull/83451
https://github.com/kubernetes/kubernetes/pull/83466

+ watch the issue if there are more PRs.
Comment 4 Liang Xia 2019-11-25 09:50:14 UTC 
Check with 4.3.0-0.nightly-2019-11-24-183610,

Create a pod with persistent volume, wait until the pod is running.
Check which node the pods is scheduled to.
Check on the node that the volume is mounted.

Stop the node, and wait until it's fully stopped.
On the client, force remove the pod.
Start the node, wait until it is running and ready.
Check on the node that the volume is not mounted, and the symlinks are moved.
Comment 6 errata-xmlrpc 2020-05-13 21:26:51 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2020:0062