Using Couchbase Community 4.0.0-4051 with a cluster of 3 server nodes.
During a hardware upgrade of a Couchbase server node within a 3 node cluster, our java application is losing communication with the couchbase cluster.
The process we are following is
- Perform a graceful fail over on the selected server node
- Power down the server, upgrade RAM and power on the server
- Select Delta-recovery and re-balance cluster.
After a re-balance of the server node, the java application will lose communication with the couchbase cluster. The application is connecting to the couchbase cluster with a command line parameter ‘couchbase.nodes.hostNames=servernode1,servernode2,servernode3’
Any ideas on configuration changes to help fix this issue so the application is not affected by a server node being down or rebalanced?