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From "malcolm davis (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AMQ-3281) Messages stuck
Date Fri, 29 Jul 2011 21:06:09 GMT

    [ https://issues.apache.org/jira/browse/AMQ-3281?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13073018#comment-13073018
] 

malcolm davis commented on AMQ-3281:
------------------------------------

We see a similar problem.  

Queue Block: (only seen in production, unable to recreate)
* Producer: Transactional, Session.CLIENT_ACKNOWLEDGE
* Queue: Single consumer thread reading the queue.
* The queue blocks when under load (receive()) does not work.  We are not sure if this is
a memory or CPU issue.
* The queue will eventually recover.


Queue going to a single consumer on restart: (easy to recreate)
* Create a queue with multiple consumers.
* Stick a lot of messages on the queue, with consumers slowly pulling messages.
* Restart ActiveMQ while messages are still on the queue.
* All existing messages on the queue go to a single consumer.
* New messages pushed to the queue are distributed to the other consumers as expected.


> Messages stuck
> --------------
>
>                 Key: AMQ-3281
>                 URL: https://issues.apache.org/jira/browse/AMQ-3281
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Broker
>    Affects Versions: 5.5.0
>         Environment: Linux and Windows
>            Reporter: Erkan
>            Priority: Blocker
>             Fix For: 5.6.0
>
>
> Sometimes the messages stuck in queue and after restart of activemq then this messages
redeliver to consumer. There are a lot of of topics:
> http://activemq.2283324.n4.nabble.com/ActiveMQ-User-f2341805.html
> and this some of them:
> http://activemq.2283324.n4.nabble.com/Stuck-messages-Dispatch-issues-td2367852.html
> http://activemq.2283324.n4.nabble.com/Messages-stuck-in-queue-td3244342.html

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