RHEL 6 or 7 logs the message "Corosync main process was not scheduled for X ms (threshold is Y ms). Consider token timeout increase."

Solution Verified - Updated -

Issue

  • A token was lost for a cluster node and the following message was logged:
Oct  1 02:43:21 node42 corosync[2560]:   [MAIN  ] Corosync main process was not scheduled for X ms (threshold is  Y ms). Consider token timeout increase.

Environment

  • Red Hat Enterprise Linux (RHEL) 6 or 7 with the High Availability Add On
  • corosync

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