What does the cluster message "ccsd: Unable to connect to cluster infrastructure" mean in a RHEL 5 cluster?

Solution Verified - Updated -

Issue

  • I have started my Highly Available cluster but the services do not start or have issues failing over.
  • The message logs are full of errors like:
ccsd: Unable to connect to cluster infrastructure after N seconds
  • Unable to connect to cluster, one of our active/passive production cluster nodes suddenly lost its cluster infrastructure and cluster went down. What would be possible cause behind the incident.

Environment

  • Red Hat Enterprise Linux (RHEL) 5 with the High Availability Add On

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