Sun Java System Message Queue 3.7 UR1 Administration Guide

When a Master Broker Is Unavailable

Because all brokers in a cluster need the master broker in order to perform persistent operations, the following imqcmd subcommands for any broker in the cluster will return an error when no master broker is available:

Auto-created physical destinations and temporary destinations are unaffected.

In the absence of a master broker, any client application attempting to create a durable subscriber or unsubscribe from a durable subscription will get an error. However, a client can successfully specify and interact with an existing durable subscription.