My subscriber is non-durable. Performance of non-durable should be better than a durable one. So, I don't think this will make a difference. My client code i.e. MessageListener looks like this: | public class FMEventSubscriber implements MessageListener { | | public void onMessage(Message message) { | if ( message instanceof ObjectMessage){ | ObjectMessage objMessage = (ObjectMessage)message; | Integer responseMsgType; | try { | handleFMEvent(responseMsgType, objMessage.getObject() ); | }catch (Exception e ){ | log.error("Un-Expected error in message processing. .."); | } | }else{ | log.error("Unknow type of FM message receiv..."); | } | } | Here, handleFMEvent calls other sessionbeans. I have noticed that if I comment out the call to handleFMEvent() then the message processing is fast. But, the main question here is that it(consumer) should not block a producer. Do I have the queue up the messages myself and then have a QueueEventprocessor publish the messages in a background thread? -Poonam. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4266756#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...