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From "Gary Tully (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AMQ-3736) Kaha DB Db.data file is growing
Date Mon, 05 Mar 2012 10:43:58 GMT

    [ https://issues.apache.org/jira/browse/AMQ-3736?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13222264#comment-13222264
] 

Gary Tully commented on AMQ-3736:
---------------------------------

To get the unused topics cleaned up, see: http://activemq.apache.org/delete-inactive-destinations.html

Note: that the index file(db.data) will not shrink, but should stabilize one the maximum is
reached. The db.data file is a collection of data pages that can get reused once they are
free, but unused destinations will need to be deleted if they are created at runtime.
                
> Kaha DB Db.data file is growing
> -------------------------------
>
>                 Key: AMQ-3736
>                 URL: https://issues.apache.org/jira/browse/AMQ-3736
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Broker
>    Affects Versions: 5.5.1
>         Environment: cent os 5.3, java 6 update 30
>            Reporter: Krishnadasan T S
>            Priority: Blocker
>         Attachments: activemq.xml
>
>
> In our production and development environment db.data file is growing. Within few weeks
it reaches GB's in size. When it grows larger broker hangs frequently. I have already reported
a bug in 5.4.2(AMQ-3710) url https://issues.apache.org/jira/browse/AMQ-3710.  In that case
db.data had a size of 5 GB. When we cleared kaha db related files db.data,db.redo and db-735.log
files, that issue solved.By further monitoring  We noticed that db.data file is growing by
day from MB to GB. And when the size become larger, the broker hanging issue is coming back.
 
>            Now we have updated Our activemq broker to 5.5.1. But db.data is still growing.
Every day we are monitoring it and if it is become big(200 mb) we are clearing all kaha related
files before our business start.
>   Other kaha related files are normal. db-*.log files are cleared by kaha db. db.redo
file is not growing. Only db-data file is growing.
>         I don't think this is a correct behavior. At certain point of time it should
clear unwanted data write. I am using the same configuration without much change. 
>  I have attached active mq config file with this.
>  

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