Percona Replication Manager – Renaming Cluster Hostnames

Recently I’ve had to rename a node on a production cluster – however, I did not have an experience on this yet so I decided to try on a sandbox and establish a known procedure. Without further ado, assuming we have 3 nodes and we want to rename ha3’s hostname to ha03.

Here we …

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Pacemaker Failed Actions ‘not installed’ And ‘not configured’

Playing around with Percona Replication Manager, and being new to Pacemaker, some errors were somewhat cryptic.

First, it says here that I have ‘operation monitor failed’ on node ha02.localdomain. This error simply means ‘I cannot run the operation monitor because it is not installed’. Where does this operation supposed to come from, from the …

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