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From "James Strachan" <james.strac...@gmail.com>
Subject Re: Out of memory errors
Date Thu, 22 Mar 2007 16:52:11 GMT
Try turning off asyncSend. Also this might help when you've done that
http://activemq.apache.org/my-producer-blocks.html



On 3/22/07, Po Cheung <pocheung@yahoo.com> wrote:
>
> Here is some more info if that would help.  We have four persistent queues A,
> B, C, and D.
>
> - Client 1 sends a message each to queue A, B, and C at an average rate of
> about 2 per second.
> - Client 2 receives a message from queue A, processes it, and sends a result
> message to queue D.
> - Client 3 receives a message from queue B, processes it, and sends  a
> result message to queue D.
> - Client 4 receives a message from queue C, processes it, and sends  a
> result message to queue D.
> - Client 1 receives and processes result messages from queue D on a separate
> thread.
>
> Client1: useAsyncSend=true
>
> Po
>
>
> Po Cheung wrote:
> >
> >
> > Po Cheung wrote:
> >>
> >> We got OutOfMemory errors on both the broker and client after
> >> sending/receiving 600K messages to persistent queues with transactions.
> >> The memory graph below shows the heap usage of the broker growing
> >> gradually.  Max heap size is 512MB.  UsageManager is also at 512MB (will
> >> that cause a problem?  should it be less than the max heap size?).  When
> >> JMS transaction is turned off, the heap usage never exceeds 10MB and we
> >> do not run out of memory.  There is no backlog in the queues so it should
> >> not be a fast producer, slow consumer issue.  Are there any known issues
> >> of memory leaks in ActiveMQ with transacted messages?
> >>
> >> Details:
> >> - ActiveMQ 4.1.1 SNAPSHOT
> >> - Kaha
> >> - Default pre-fetch limit
> >>
> >> Po
> >>
> >  http://www.nabble.com/file/7328/ActiveMQHeap.gif
> >
>
> --
> View this message in context: http://www.nabble.com/Out-of-memory-errors-tf3443750s2354.html#a9618502
> Sent from the ActiveMQ - User mailing list archive at Nabble.com.
>
>


-- 

James
-------
http://radio.weblogs.com/0112098/

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