Commands to Determine the Primary Node Role in a Cluster

Commands are available to determine if a node is the primary database or application node.

From the CLI on a node, the cluster primary command can be run with additional parameters to determine if the node is the primary database or application node.

platform@VOSS-UN-1:~$ cluster primary
is_primary: true
platform@VOSS-UN-1:~$ cluster primary role application
is_primary: true
platform@VOSS-UN-1:~$ cluster primary role database
is_primary: false
platform@VOSS-UN-1:~$

This command should be used to establish and confirm the primary application node during patch, patch bundle or delta bundle installation.