[ClusterLabs] Antw: [EXT] Re: Antw: Hanging OCFS2 Filesystem any one else?
Ulrich.Windl at rz.uni-regensburg.de
Fri Jul 9 03:56:43 EDT 2021
An update on the issue:
SUSE support found out that the reason for the hanging processes is a deadlock caused by a race condition (Kernel 5.3.18-24.64-default). Support is working on a fix.
Today the cluster "fixed" the problem in an unusual way:
h19 kernel: Out of memory: Killed process 6838 (corosync) total-vm:261212kB, anon-rss:31444kB, file-rss:7700kB, shmem-rss:121872kB
I doubt that was the best possible choice ;-)
The dead corosync caused the DC (h18) to fence h19 (which was successful), but the DC was fenced while it tried to recover resources, so the complete cluster rebooted.
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