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https://issues.apache.org/jira/browse/AMQ-5136?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13982938#comment-13982938
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Sergiy Barlabanov commented on AMQ-5136:
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Can anybody comment this issue? Any ideas when it will be fixed? The fix would 
be quite easy: just add a correct rollback listener.

> MemoryUsage is not decremented on a JMS topic when rolling back a transacted 
> session
> ------------------------------------------------------------------------------------
>
>                 Key: AMQ-5136
>                 URL: https://issues.apache.org/jira/browse/AMQ-5136
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Broker
>    Affects Versions: 5.8.0, 5.9.0
>            Reporter: Sergiy Barlabanov
>         Attachments: activemqbug.zip
>
>
> When sending a message to a topic using a transacted session, memory usage is 
> not decremented correctly when session.rollback is called. It is decremented 
> on commit but not on rollback. This has quite bad consequences since after 
> some time depending on the system memory usage settings and amount of rolled 
> back messages, the broker starts to reject messages saying that Usage Manager 
> memory limit is reached. The only solution is to restart the broker.
> I created a small Maven project (see the attachment) with a unit test 
> starting an embedded broker and two test methods: one sending messages with 
> session.commit and another with session.rollback(). The last one fails to 
> assert the memory usage. In the output one can see quite a lot of error logs 
> written by ActiveMQ. The problem is reproducible with 5.8.0 and 5.9.0.
> The problem seems to be in 
> org.apache.activemq.broker.region.Topic#doMessageSend method where a 
> transaction synchronization is registered. In the transaction synchronization 
> only afterCommit is supplied, but no afterRollback. So there seems to be 
> nobody calling message.decrementReferenceCount().



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