> What about using selective consumers? That way one queue can act like multiple queues.
Okay, so how does ActiveMQ deal with a single queue, 6000 consumers, and 6000 different selectors? > reduce number of threads for connections in the broker use NIO - I've found next to no information on the net about ActiveMQ's use of NIO, which implies to me that it's rarely used and therefore risky. Is NIO always better? When is it not? What are the trade-offs? Again, can ActiveMQ handle thousands of connections with NIO? > Use optimizeDispatch in the Queues - see > http://activemq.apache.org/per-destination-policies.html What are the trade-offs to using that? What are the risks? These features are massively under-documented. I'm not comfortable betting my project on a feature that has a single sentence for documentation. I appreciate the above advice, and I will try them in my simulator. The question I'm eager to have answered, though, is whether ActiveMQ has ever been used in a setup this large. What's the largest setup anyone's ever seen? 10 clients? 100? 1000? Thanks again, Lawrence -- View this message in context: http://www.nabble.com/6000-ActiveMQ-clients-tp19983973p20006808.html Sent from the ActiveMQ - User mailing list archive at Nabble.com.