Nodes Disappear From show domain processes

Symptom

When broker is restarted there are nodes (TE and SM processes) that have disappeared from the output of the NuoDB Manager show domain processes command.

Cause

The broker is not peering into the domain.

All brokers should be started with the --peer option so that they can be reconnected successfully to the domain when the broker is restarted. If a broker is not started with the --peer option and it happens to be restarted for any reason then it does not rejoin the rest of the peers and instead runs as a stand-alone entity.

Solution

Restart the broker with a valid peer property setting in the default.properties file. See Setting the peer Property.