What does "notify" operation do in pacemaker cluster?
Issue
Besides monitoring
operation there are records of notify
operations in cluster logs. What these notify
messages mean?
Nov 20 01:26:01 node1 crmd[798]: notice: Result of notify operation for DB2 on node1: 0 (ok)
Nov 20 01:26:01 node1 crmd[798]: notice: Initiating notify operation DB2_post_notify_demote_0 on node2
Nov 20 01:26:01 node1 crmd[798]: notice: Initiating notify operation DB2_pre_notify_stop_0 locally on node1
Environment
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- pacemaker cluster with clone or promoted/demoted resource
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