repmgr primary unregister repmgr primary unregister repmgr primary unregister unregister an inactive primary node repmgr primary register unregisters an inactive primary node from the &repmgr; metadata. This is typically when the primary has failed and is being removed from the cluster after a new primary has been promoted. Execute with the --dry-run option to check what would happen without actually unregistering the node. repmgr master unregister can be used as an alias for repmgr primary unregister/ A primary_unregister event notification will be generated.