Hi, Concerning our first question, the effect that only one message is processed is perfectly explainable. A JMS Message Listener belongs to a JMS Session and each JMS Session is a single threaded context (see JMS Spec). So you should decouple long lasting computations from the session.
-christoph -----Ursprüngliche Nachricht----- Von: fatcat [mailto:byf...@gmail.com] Gesendet: Dienstag, 24. Februar 2009 00:58 An: users@activemq.apache.org Betreff: onMessage long execution hi, i have a listener onMessage() that sometimes will take a while to complete(expensive), so what happen seems like, while if there is a ongoing onMessage is being executed, no other message will be processed by our code. is that true that activeMQ only use on thread to dispatch the onMessage call ? is there any configuration parameter can be used such that, an expensive onMessage execution will not block the other onMessage call? Also not sure it is related, but if we send another activeMQ message to another Q through the input's message's reply address, during a long exeuction of onMessage, the reply message will never got received in the other queue, although the send method is really being called. any pointer? -- View this message in context: http://www.nabble.com/onMessage-long-execution-tp22172993p22172993.html Sent from the ActiveMQ - User mailing list archive at Nabble.com.