Azure VM running as a RHEL High Availability cluster member take a very long time to be fenced, or fencing fails / times-out before the VM shuts down

Solution Verified - Updated -

Issue

  • I am running a RHEL HA cluster on Microsoft Azure VMs. When a node gets fenced it takes a very long time to complete.
  • Fencing of RHEL cluster nodes on Azure with fence_azure_arm timing out or taking a very long time

Environment

  • Red Hat Enterprise Linux Server 7, 8 (with the High Availability Add On)
  • pacemaker
  • Microsoft Azure VMs as cluster members

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