title: Identify the master broker in ActiveMQ "Classic" HA pair
body: <p>I am configuring HA for ActiveMQ &quot;Classic&quot; using shared JDBC master/slave with MySQL. I wanted to keep track of who is the current master broker, listening for connections. Because in case of fail-over of a master broker the slave will become the new master. How the master broker will be identified so that we can keep track of it?</p>