Hello, Need advise on below situation:
Postgres 9.6 Pacemaker 1.1.19 Corosync 2.4.3 We are testing HA setup on a two node cluster using pacemaker, corosync stack. The replication is streaming replication in async mode. Whenever there is a failover to standby, pgsql created a PGSQL.lock file in /var/lib/pgsql/tmp/ folder. We noticed that this file is created at random on any one of the nodes. Want to know: - Is there any logic behind which node it creates the lock file? - When a node in kept in HS:alone state ? - How can we check if failed node is at a log location behind current primary? So that we can force RA to start by deleting lock file? Please help to understand Thanks.
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