When I use JConsole to monitor ActiveMQ5.1, I find that the MessageCountAwaitingAcknowledge and DispatchedQueueSize of SubscriptionView are negative
from time to time, especially when the producer is very fast and the consumer is relatively slow. This is the screen shot http://www.nabble.com/file/p20496111/jconsole.jpg Accoring to my test case, I think the EnqueueCounter is right. The DequeueCounter does not look right as well. I appologize if this issue has been raised before. -- View this message in context: http://www.nabble.com/Negtive-MessageCountAwaitingAcknowledge---DispatchedQueueSize-on-JConsole-tp20496111p20496111.html Sent from the ActiveMQ - User mailing list archive at Nabble.com.