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From "James Strachan" <>
Subject Re: 4.0 Consumer OutOfMemoryError bug?
Date Wed, 31 May 2006 11:27:29 GMT
On 5/30/06, skarthik <> wrote:
> Hi,
> I am using the latest activemq-4.0 (downloaded today 5/30/2006) The
> following problem exists in activemq-4.0 downloaded on 5/8/2006 as well, but
> NOT in RC2.
> The setup includes one activemq server, one simple producer process and one
> simple consumer process. After the consumer receives around 64MB of messages
> (6200 10KB messages or 998 64KB messages or 634 100KB messages), it throws
> the following error on its console
> Exception in thread "ActiveMQ Transport: tcp:///"
> java.lang.OutOfMemoryError: Java heap space
> The producer publishes the messages at a rate of 10 messages per second on a
> Topic using DeliveryMode.PERSISTENT. The test programs are very simple and
> only just log the messages sent and recieved. So they should not have any
> memory leaks. The JMS server uses default configuration (persistent broker)
> Is there any configuration that needs to be specified to eliminate this
> problem? Like I mentioned at the start, the exact same test code works fine
> with RC2 version (which was verified/re-tested today).

So the JVM that runs out of memory - is that just the consumer, or is
it the consumer, the broker and producer? Whats the heap size of that
JVM? What acknowldgement mode are you using?



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