Ryan Hochstetler [http://community.jboss.org/people/ryanhos] created the 
discussion

"Re: Cumulative message counts?"

To view the discussion, visit: http://community.jboss.org/message/625063#625063

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Cumulative message counts for queues can be enabled by setting the 
+EnableMessageCounters+ attribute on the ServerPeer MBean declaration 
(messaging-service.xml in the community distro) or by invoking the 
enableMessageCounters method of the ServerPeer MBean from the JMX console.  The 
output can be retrieved from the +MessageCounters+ attribute of the same MBean 
or by invoking the +listMessageCountersAsHTML+ method.  The deltas in the 
counters are, I believe (and have been too lazy to dig-up the documentation), 
the difference since last access of the message counters themselves (of course, 
deltas are "differences," my uncertainty is the difference from "when to when").

I don't have any knowledge on how this mechanism counts messages for Topic 
subscriptions because I've never had to diagnose a problem with one.  All of 
the Topics on my project are very low volume and they've never gone haywire, 
like JBM queues sometimes are inclined to do.
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