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From "William (Created) (JIRA)" <>
Subject [jira] [Created] (AMQ-3697) Messages not delivered to connecter consumer
Date Sun, 05 Feb 2012 15:17:53 GMT
Messages not delivered to connecter consumer

                 Key: AMQ-3697
             Project: ActiveMQ
          Issue Type: Bug
          Components: Broker
    Affects Versions: 5.5.1
         Environment: SunOS 5.10 Generic_142909-17 sun4v sparc SUNW,T5140

            Reporter: William
            Priority: Critical

I am using ActiveMQ 5.5.1 and sometimes messages are not dispatched to connected consumers.

A single broker is used. No transaction and no persistence is used for message delivery. Message
consumers are spring template made for topic consuption. Optimize acknowledge is enabled and
acknowledgment is auto.

By Looking at JMX Topic MBean I can see that messages are received but not dispatched (and
of course non depueued). I noticed that disptatched count was 100 more than dequeue count.

>From JMX : 
* Received count : 4502
* Dispatched count : 3756
* Dequeued count : 3656

If a start a new consumer on the same topic, the messages are only dispatched to the new consumer
while the older one is still seen as connected (consumer count on the mbean is 2). Once the
problem appear the only solution is to restart the consumer or the activemq instance.

It seems that even if the consumer is seen as connected, messages as not dispatched for an
unknow reason. 

Which logs can I enable in order to diagnose the problem (on activemq side and/or consumer
side) ? I have already made a thread dump, not thread are blocke

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