Controller failing to authenticate and join the cluster during FFU

Solution Unverified - Updated -

Issue

  • When doing a fast forward upgrade from RHOSP 13 to RHOSP 16.2.1, the overcloud update process would fail showing an error that indicates that one of the controllers is unable to authenticate and join the pacemaker cluster

Environment

  • Red Hat OpenStack Platform (RHOSP) 16.x
  • Fast Forward Upgrade (FFU) from RHOSP 13

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