A Cluster Node Is Frequently DISCONNECTED
If a node frequently has a status of DISCONNECTED, you can try increasing the value of the Cluster Heartbeat Interval (On Server Restart) configuration parameter to reduce the likelihood of it being disconnected, and thereby improve its performance.
To adjust the Cluster Heartbeat Interval (On Server Restart) parameter
1. Verify that all servers in the cluster are running.
2. With Studio connected to any TDV server in the cluster, choose Administration > Configuration.
3. Navigate to TDV Server > Configuration > Cluster.
4. Adjust the value of Cluster Heartbeat Interval (On Server Restart).
5. Shut down all TDV servers.
6. Restart all TDV servers.