[ClusterLabs] Fencing issue with dlm resources in pacemaker cluster.

Sai Siddhartha Peesapati SaiSiddhartha.Peesapati at Quantum.Com
Sat Jul 22 04:33:01 EDT 2023


This is a 3-node cluster with gfs2 filesystem resources configured using dlm and clvmd. Stonith is enabled. dlm and gfs2 resources are set to fence on failures.
Pacemaker version on the cluster - 2.1.4-5.el8 (CentOS 8 Stream)

Pacemaker default fence actions are set to power off the node instead of a reboot by setting "pcmk_reboot_action=off" on IPMI fence devices. Also, cluster wide stonith default action is set to poweroff the node instead of a reboot
# pcs property config |grep stonith
 stonith-action: off
 stonith-enabled: true

But still the node is rebooting as dlm_controld resource is sending a reboot action as part of fencing. Below are the logs obtained from syslog to confirm the same.

dlm_controld[73542]: 813117 fence request 3 pid 1695739 nodedown time 1690006193 fence_all dlm_stonith
pacemaker-fenced[15706]: notice: Client stonith-api.1695739 wants to fence (reboot) 3 using any device

I need the node to be powered off from fencing operations rather than a reboot. Disabling fencing on dlm resources is not an option. Is there any other way to solve this and make dlm issue a poweroff action instead of a reboot as part of fencing.

Regards
P V K Sai Siddhartha
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