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Date: Sun, 11 May 2008 10:39:15 +0200
From: Arjen van der Meijden <acmmailing@tweakers.net>
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To: users@activemq.apache.org
Subject: Re: [ANNOUNCE] Apache ActiveMQ 5.1.0
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Hi,

We were seeing that same issue with 5.0 as well. But with 5.1 it seems 
to be gone.

Here is a graph of the JVM's garbage collection with 5.0, the line 
represents the 'Used tenured + new' i.e. if the general trend is up, its 
the Old Gen that increases:
http://achelois.tweakers.net/~acm/tnet/activemq-5.0-memory.png

As you can see, the used memory continuously grows, forcing the garbage 
collector to increase the frequency of full collects (the drops happen 
more frequently).

The 5.1-graph is much prettier:
http://achelois.tweakers.net/~acm/tnet/activemq-5.1-memory.png

There could probably be some more gc-tuning, given the behaviour early 
on (those huge peak were actually noticable in the producing entities), 
but in the long run, its memory consumption stays pretty stable.

Afaik I didn't change too much to the activemq-configuration.

Best regards,

Arjen

On 8-5-2008 9:36 James Strachan wrote:
> Has anyone managed to reproduce AMQ-1662 on 5.1.0?
> 
> 2008/5/8 realSri <komandur@washington.edu>:
>>  Hi,
>>
>>  Reg: AMQ 5.0 Stable release "PS Old Gen" Memory is growing continuously
>>  (http://issues.apache.org/activemq/browse/AMQ-1662)
>>
>>  Thanks for the 5.1 release ! Could you please give an update on the status
>>  of the above issue ? Since there is no response, it is not clear if the
>>  issue is fixed in 5.1.
>>
>>  Thanks
>>  - Sridhar
>>
>>
>>
>>
>>
>>  Hiram Chirino wrote:
>>  >
>>  > The ActiveMQ team is pleased to announce the release of ActiveMQ 5.1.0.
>>  > This release fixes a large number of bugs that were in the 5.0.0 which
>>  > only expose themselves when the broker is used in anger.  It is highly
>>  > recommended that all 5.0.0 users upgrade to 5.1.0 as soon a possible.
>>  >
>>  > You can download the release from:
>>  > http://activemq.apache.org/activemq-510-release.html
>>  >
>>  > --
>>  > Regards,
>>  > Hiram
>>  >
>>  > Blog: http://hiramchirino.com
>>  >
>>  > Open Source SOA
>>  > http://open.iona.com
>>  >
>>  >
>>
>>  --
>>  View this message in context: http://www.nabble.com/-ANNOUNCE--Apache-ActiveMQ-5.1.0-tp17109488s2354p17116571.html
>>  Sent from the ActiveMQ - User mailing list archive at Nabble.com.
>>
>>
> 
> 
>