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From "Minutello, Nick" <nick.minute...@credit-suisse.com>
Subject RE: Out of memory error with Topics/subscribers....
Date Sat, 29 May 2010 00:39:01 GMT
 
It appears this leak can be confirmed by looking in the JMX console -
QueueSize grows, even though messages were consumed.
I upgraded to 5.3.2 - and that behaviour seems to have stopped. Havent
been able to tell if the memory leak is gone yet though...

-N


-----Original Message-----
From: Minutello, Nick 
Sent: 28 May 2010 19:44
To: users@activemq.apache.org
Subject: Out of memory error with Topics/subscribers....


Our ActiveMQ broker is running out of memory quite consistently - and
the cause seems to be related to Topics/Subscriptions.
We are using a non-durable subscription.
We happen to have only 1 consumer - and when we change the destination
to be a queue, this OOME seems to stop. Which might lead me to believe
the producers are not overrunning the consumer...
This is using AMQ 5.3.0 & tcp connection.

There is an (alarmingly old & unresolved) issue that appears to be
related to this.
https://issues.apache.org/activemq/browse/AMQ-1876 

I will see if I can write a small example that reproduces the problem,
but until then; any ideas/advice?
Any further information/metrics I should collect? Is this a
suspected/known issue?

Cheers,
Nick

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