How to calculate corosync main process schedule threshold
Issue
- The 'totem.token' value of 1650 doesn't seem to related to the threshold number in the diagnostic message the corosync service logged: threshold is 1320.0000 ms:
[MAIN ] Corosync main process was not scheduled for 2145.7053 ms (threshold is 1320.0000 ms). Consider token timeout increase.
- When the totem.token is default 1000 ms, cluster node fence and this was recorded:
[MAIN ] Corosync main process was not scheduled for 30775.2207 ms (threshold is 800.0000 ms). Consider token timeout increase.
- A node fence operation was triggered as the corosync process was not scheduled with in 4000.0000 ms, consequently the cluster communication token was not replied: in case of token: 5000 on corosync.conf
[MAIN ] Corosync main process was not scheduled for 11445.4121ms (threshold is 4000.0000 ms). Consider token timeout increase.
Environment
Red Hat Enterprise Linux 7, 8 with the High Availability Add-on
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