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From "James Strachan" <>
Subject Re: Inaccessible Messages in Queue
Date Thu, 07 Dec 2006 16:59:40 GMT
Yes I've seen this before - its a bug in the dispatch logic. It was
fixed in 4.1.0.

On 12/6/06, <> wrote:
> Hello,
> I'm seeing a strange issue with ActiveMQ 4.0.2. We have a single process
> that generates messages and sends them to a queue. There are several
> hundred client processes that consume messages from this queue. I have set
> the queue prefetch policy of the client connections to 1,
> useRetroactiveConsumer = true, maxInactivityDuration = 0. I'm using a
> non-transacted auto-acknowledge session with the MessageConsumer.
> Every now and then we get what appears to be a "lost" message. The clients
> are unable to pull any more messages off the queue, but JConsole/JMX is
> reporting that there is 1 message still available. Using the browseAsTable
> operation I'm able to inspect the message, but nothing seems out of the
> ordinary.
> Has anyone seen a situation like this before? Any suggestions of what I
> could do to prevent this from happening?
> Thanks in advance,
> Tony
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