ActiveMQ Core bridge to cluster

Question

Version : ActiveMQ Artemis 2.10.1

I created a core bridge to a failover cluster.

broker A <--(core bridge)--> broker B[MASTER] <--(failover cluster)--> broker C[SLAVE]

When I created the bridge and the cluster, I don't used broadcast-groups and discovery-groups. I used satic-connectors.

When I created the core bridge, I set IP and port of the broker B as the connector of the broker A. I could failover successfully.

Although I didn't set IP and port of the broker C as the connector of the broker A, how could the broker A know IP and port of the broker C?

Answer 1

When a client connects to a broker that has a slave the broker informs the client of the slave so that if it dies the client can try connecting to the slave. In your case, when the core bridge on broker A connects to broker B (which has broker C as a slave) then broker B informs the core bridge on broker A about broker C so that if broker B dies the core bridge on broker A will connect to broker C.