The master or master replica node is critical to the availability of the vRealize Operations cluster. It contains all vRealize Operations services, including UI, Controller, Analytics, Collector, and Persistence, as well as critical services that cannot be replicated across all cluster nodes. These include the following:
- NTP server
- GemFire locator
During a failure event of the master node, the master replica DB is promoted to a full read/write master. Although the process of replica DB promotion can be done online, the migration of the master role during a failover does require an automated restart of the cluster. As a result, even though it is an automated process, the failure of the master node will ...
