Can I update software packages on a RHEL High Availability or Resilient Storage node while it is an active member of the cluster?

Solution Verified - Updated -

Issue

  • I updated my cluster software while the node was still a member and the cluster became unstable
  • A node had its software updated while it was live and resources began behaving strangely or giving errors
  • Nodes crashed or were fenced while having their RPMs updated with yum
  • Do I need to stop the cluster daemons on my nodes before I update packages?

Environment

  • Red Hat Enterprise Linux (RHEL) 5, 6, 7, or 8 with the High Availability or Resilient Storage Add-On

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