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From Filip Hanik - Dev Lists <>
Subject Re: Multiple threads for ActiveMQ Connection
Date Tue, 20 May 2008 16:36:32 GMT
mandira wrote:
> We are using ActiveMQ for parallel processing - Some of parallelism achieved
> through JMS Listeners and some through multiple threads.
> While running the application after some time - we were always getting "Out
> of Memory" Error
yeah, but what kind of OOME? there are many types

> On profiling we notice a high number of threads being spawned and the no of
> instances only increasing with time.
> We commented the code to "send" the message to queue and the thread count
> became kind of steady. On further reading we discovered it is by design as
> the transport is async as explained in this URL - 

> But this only works for vm protocol. The broker, in our case, would be
> running as a separate instance. What is the best option to reduce the no of
> threads.
> We tried versions 5 and 5.1
> thank you, 
> Mandira

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