Hi, > My current understanding is that every client must publish to a topic (e.g. > TargetTopic) configured in my broker.
Yeah, I believe that exclusive reply topic is the best (only?) option for MQTT to achieve In/Out communication. > Due to the fact that I don't know how many clients will be there in future, > I'm afraid to maintain thousands of response topics in my broker. This is really a better question for the ActiveMQ mailing list, as this is broker specific issue. In AMQ for example you can control the eviction policy [1] of the topics, so you don't have to worry about leaking topics. Cheers. [1] http://activemq.apache.org/delete-inactive-destinations.html -- Henryk Konsek http://henryk-konsek.blogspot.com
