Well, lets say I’m building ActiveMQ based chat application. It’s pretty simple. Having only one QUEUE.IN and one TOPIC.OUT. All messages are simply routed right away from QUEUE.IN to TOPIC.OUT. Clients are producing their chat messages to QUEUE.IN and consuming from TOPIC.OUT. That’s all.
Now, I wanna cluster it. Don’t need something complex. Just run few other identical nodes (A..N). Basically, client, subscribed to A node, sends message to A.QUEUE.IN. This message must then appear on all other nodes (A..N).TOPIC.OUT. This could be easily done by simple camel route that re-route all messages comes to TOPIC.OUT to other nodes, but is there some nice ActiveMQ-native way to do so? Like some queue/topic shared among several AMQ instances?
I think you can find your answer here:
http://activemq.apache.org/how-do-distributed-queues-work.html