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From Rob Davies <rajdav...@gmail.com>
Subject Re: Problems with cpu load and io
Date Thu, 24 Sep 2009 14:07:25 GMT
Use the kahaDB persistence adaptor in 5.3-SNAPSHOT - the release is  
coming soon
On 24 Sep 2009, at 14:03, zunrise wrote:

>
> Hi,
>
> I have a question about performance of ActiveMQ. I use a persistent  
> storage
> configured like this:
>
>        <persistenceAdapter>
>            <amqPersistenceAdapter syncOnWrite="true"
> directory="${activemq.base}/data" maxFileLength="20 mb"
> cleanupInterval="30000"/>
>        </persistenceAdapter>
>
> My problem is that after the system is running for a while (e.g. 1  
> week with
> only sending a small amount of messages) the kr-store became bigger  
> and
> bigger. In the Journal folder their was an file of 20MB filesize.  
> The IO
> rate was constantly ~ 5MB. The CPU usage of the broker was  
> constantly near
> 30%. After stopping the broker and deleting the data folder (including
> kr-store, journal and data), The CPU usage was ~1% and IO rate was
> constantly 10 KB. So how do I have to setup my system, that the  
> store will
> clean automatically, after a period of time. I thought this would do  
> the
> parameter 'cleanupInterval="30000"' but it doesn't work. I'm using  
> ActiveMQ
> 5.2.0. I would be really happy if someone could help me with my  
> problem.
>
> Regards
> -- 
> View this message in context: http://www.nabble.com/Problems-with-cpu-load-and-io-tp25566724p25566724.html
> Sent from the ActiveMQ - User mailing list archive at Nabble.com.
>

Rob Davies
http://twitter.com/rajdavies
I work here: http://fusesource.com
My Blog: http://rajdavies.blogspot.com/
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