There has been some fixed issues regarding that in 5.2. Can you try the latest RC?
If still does not work, it would help if you could create reproducible test case. Cheers -- Dejan Bosanac http://www.ttmsolutions.com - get a free ActiveMQ user guide ActiveMQ in Action - http://www.manning.com/snyder/ Scripting in Java - http://www.scriptinginjava.net WhiteSock wrote: > 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. >