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From "Rob Davies (JIRA)" <>
Subject [jira] Resolved: (AMQ-2162) ActiveMQMessageConsumer.unconsumedMessages continues to grow
Date Fri, 17 Jul 2009 11:09:34 GMT


Rob Davies resolved AMQ-2162.

       Resolution: Working as Designed
    Fix Version/s: 5.3.0
         Assignee: Rob Davies

I'd check that you are actually acknowledging the messages in your Consumer.
However - also set the prefetch limit to a lower value - see

> ActiveMQMessageConsumer.unconsumedMessages continues to grow
> ------------------------------------------------------------
>                 Key: AMQ-2162
>                 URL:
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Broker
>    Affects Versions: 5.2.0
>         Environment: Windows XP Pro / Red Hat Linux
>            Reporter: Mark
>            Assignee: Rob Davies
>            Priority: Blocker
>             Fix For: 5.3.0
> I have written a message producer that is generating messages at a high rate of speed.
 The consumer does process the messages at a slower rate of speed.  
> I profiled the producer using YourKit and noted that ActiveMQMessageConsumer.unconsumedMessages
does not ever go down.  The number of messages sent to the consumer is the same number of
messages that are contained in the ActiveMQMessageConsumer.unconsumedMessages list.  I have
tried many different configurations and have been unsuccessful in getting this problem to
go away.

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