I have the following scenario that results inconsistent message deliveries. A single faster producer sending messages to a queue and 6 consumers receiving the messages and each of them taking a long time to complete the task. When the message sits in the queue long time, atleast one or two messages not delivered at all, I used the JMX console to monitor and see that the queue size is not 0 (when all them supposed to be completed) Is it ring a bell for anyone? Thanks /selvan -- View this message in context: http://www.nabble.com/Message-never-delivered-%28dequeued%29-t1535650.html#a4172254 Sent from the ActiveMQ - User forum at Nabble.com.