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From "Jason Shepherd (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AMQ-4533) Messages stuck in queue with redelivered=true
Date Tue, 18 Jun 2013 06:07:21 GMT

    [ https://issues.apache.org/jira/browse/AMQ-4533?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13686426#comment-13686426
] 

Jason Shepherd commented on AMQ-4533:
-------------------------------------

In the sendAndListenToWithFailower method, you call listenInThreads with 'ReceiptQueue' as
the queueName. If you only wanted to set the prefetch on ReceiptQueue, you would need to refactor
the sendAndListenToWithFailower method to be able to specifying the prefetch value to pass
to the registerConsumerListeners methods. 

In that method, you could pass the prefetch. So instead of :

            MessageConsumer messageConsumer = session.createConsumer(                    
      
                    session.createQueue(queueName));

You could use something like:

            queue = new ActiveMQQueue(queueName + "?consumer.prefetchSize=0");
            MessageConsumer messageConsumer = session.createConsumer(queue)

See this page for a reference:

   http://activemq.apache.org/what-is-the-prefetch-limit-for.html


                
> Messages stuck in queue with redelivered=true
> ---------------------------------------------
>
>                 Key: AMQ-4533
>                 URL: https://issues.apache.org/jira/browse/AMQ-4533
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: JMS client
>    Affects Versions: 5.7.0
>         Environment: Fuse Message Broker 5.7.0
>            Reporter: Jason Shepherd
>         Attachments: AMQ4533TestPatch.txt, AMQ4533TestPatch.txt, AMQ4533TestPatch.txt,
kahaPendingMessages.zip
>
>
> We're  getting message stuck in queues with the 
> redelivery flag set to true.
> We used the following test model: put every 1 second 50 messages sequentially, and after
that, the rest of 1000 msgs quickly to INPUT_QUEUE and 
> while starting 25 listeners cosuming from INPUT_QUEUE, which takes about 30 seconds to
move the message to RECEIPT_QUEUE, 10 other listeners on RECEIPT_QUEUE consume and counts
them.
> We tried making one of the consumer slow by setting the 
> processing time to 100000 seconds (sleep) and putting a heavy load in 
> 500 threads every 1 ms to some other queues the same time.
> Our test case is attached, you might need to install some dependencies 
> to the local maven repository manually:
>      mvn install:install-file -DgroupId=org.apache.activemq 
> -DartifactId=activemq-core -Dversion=5.7.0-fuse-71-047 -Dpackaging=jar 
> -Dfile=activemq-core-5.7.0.fuse-71-047.jar
>      mvn install:install-file -DgroupId=org.apache.kahadb 
> -DartifactId=kahadb -Dversion=5.7.0-fuse-71-047 -Dpackaging=jar 
> -Dfile=kahadb-5.7.0.fuse-71-047.jar
>      mvn install:install-file 
> -DgroupId=org.apache.geronimo.management.specs 
> -DartifactId=geronimo-j2ee-management_1.1_spec -Dversion=1.0.1 
> -Dpackaging=jar -Dfile=geronimo-j2ee-management_1.1_spec-1.0.1.jar
>      mvn install:install-file -DgroupId=org.apache.activemq.pool 
> -DartifactId=activemq-pool -Dversion=5.7.0-fuse-71-047 -Dpackaging=jar 
> -Dfile=activemq-pool-5.7.0.fuse-71-047.jar
> To run the test, simply use the Maven test target:
>     mvn clean test
> If the problem occurs the you'll get a message like this in the test 
> results, (target/surefire-reports):
>     java.lang.AssertionError: Still messages in InputQueue expected:<0> 
> but was:<365>

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