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From terrytriple <>
Subject Re: Controlling memory usage for persistent messages
Date Tue, 10 Oct 2006 12:22:11 GMT

Afraid I can't help with your question, but I'm looking for an answer to the
same question !

We are thinking of moving from a JBossMQ solution to ActiveMQ -- but having
the broker block/throw exceptions because it's out of memory due to it
holding all the messages in memory is a real problem for us.  With our
existing solution we sometimes have hundreds of thousands of messages
waiting around.

anyway - looking forward to any reponse to this issue !

yaussy wrote:
> When sending persistent messages (durable topics) to a consumer, and then
> the consumer goes away, AMQ 4.x broker consumes memory.  Is there any way
> to configure how much it will attempt to keep in memory for persistent
> messages??  Seems to me that's the point of having the persistence
> mechanism (i.e. derby or kaha or Oracle) - capacity at that level is not
> an issue.  I can't have the Broker attempting to keep all messages ready
> in memory for that failed consumer - it may run out of memory very
> quickly.

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