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From "Edwin Yu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AMQ-3281) Messages stuck
Date Tue, 18 Sep 2012 16:38:08 GMT

    [ https://issues.apache.org/jira/browse/AMQ-3281?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13457929#comment-13457929
] 

Edwin Yu commented on AMQ-3281:
-------------------------------

Hi Claus, I spent a day writing a unit test.  The unit test performed very well and seemed
solid.  The issue only happens in our production system, where we also embedded Mule, Quartz,
Spring, Hibernate, etc.  It's hard to simulate the right environment in a unit test.  Also,
when I allocated more memory to the JVM, and switched to use parallel gc, the issue seemed
to happen lot less frequently.  I tend to think that when a long full GC kicks in and application
threads are stopped momentarily, it may trigger this issue to occur, but I cannot prove it.
Regards.

                
> 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: Critical
>             Fix For: 5.8.0
>
>         Attachments: activemq-jdbc.xml, activemq.log, activemq.xml, debug.zip
>
>
> 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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