Should I specify an action when creating stonith devices in my High Availability cluster with pacemaker?

Solution Verified - Updated -

Issue

  • When using cman, we used to create a <device/> entry in /etc/cluster/cluster.conf and specify the desired action, like action="off". Should I specify an action when creating a stonith device with pcs?
  • Will stonith-ng override my configured action setting on a stonith device with the expected action that needs to be carried out?
  • Nodes are being rebooted when joining the cluster and unfencing is carried out
  • Nodes reboot when stonith is executing a monitor operation
  • How do I change the fence agent so it shuts a node down instead of rebooting the node?
  • How do I see what the fence action is set to for a fence agent?
  • Nodes get rebooted unexpectedly when I issue a pcs resource cleanup or pcs stonith cleanup, and there don't appear to be any resource failures to cause fencing.

Environment

  • Red Hat Enterprise Linux (RHEL) 6, 7, or 8 with the High Availability Add On
  • pacemaker
  • One or more stonith devices configured with an action="reboot" or action="off" attribute

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