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From "Vasile M (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AMQ-2736) KahaDB doesn't clean up old files
Date Thu, 04 Oct 2012 15:11:48 GMT

    [ https://issues.apache.org/jira/browse/AMQ-2736?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13469447#comment-13469447
] 

Vasile M commented on AMQ-2736:
-------------------------------

I want to add to my provious comment that we are using the CPP library CMS for ActiveMQ with
stomp.
We have one producer and one subscriber and this already causing problems.
The logs are growing.
In C++ we use Session::AUTO_ACKNOWLEDGE and even in this case the log files are not deleted.
We write(using a producer) in the queue and and another process is reading(using a listener)
we never have many messages in the queue.
QueueName       Number of pending messages   Number of listener       Messages Enqueued  
  Messages Dequeued 
queuename 	0 	                           1 	               21522 	            21522
This is maybe a new use-case too ?
                
> KahaDB doesn't clean up old files
> ---------------------------------
>
>                 Key: AMQ-2736
>                 URL: https://issues.apache.org/jira/browse/AMQ-2736
>             Project: ActiveMQ
>          Issue Type: Bug
>    Affects Versions: 5.3.2
>            Reporter: Adrian Trenaman
>            Assignee: Gary Tully
>            Priority: Critical
>             Fix For: 5.5.0
>
>         Attachments: AMQ2736Test_should_with_this_diff.txt, AMQ-2736.zip, amq-2987.patch,
amq-2987-testcase.patch, MyKahaDBStore.java
>
>
> Over time, we're seeing that kahadb doesn't clean up old journal files. As a result,
we eventually run out of disk space, or rather, we hit our usage limits and our producers
are slowed down by the producer flow control mechanism. Others have experienced this problem
too (for example, see http://mail-archives.apache.org/mod_mbox/activemq-users/201002.mbox/%3C27502591.post@talk.nabble.com%3E)
> For now, we're moving back to the old amqPersistenceStore. 

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