Hi all,
I'm currently managing a PostgreSQL SR cluster with the following configuration.
1. PostgreSQL 9.2.4
2. Pacemaker/corosync as the cluster software
3. Streaming replication within 1 master and 2 slaves
If I want to change a parameter in postgresql.conf or any configuration which requires a reboot, how should I perform it without downtime? Also, if I want to perform rolling upgrade, what's the steps involve?
I tried googling for help but I couldn't find much on it.
Thanks!
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Regards,
Ang Wei Shan