[jboss-user] [EJB3] - Re: MDB Pool size configuration

[Carlo de Wolf]

Carlo de Wolf [http://community.jboss.org/people/wolfc] created the discussion

"Re: MDB Pool size configuration"

To view the discussion, visit: http://community.jboss.org/message/631240#631240

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The thread local pool is designed to be used by a pool of threads. Because the pool of threads already limits the amount of instances that can be created the thread local pool doesn't need any multi-threading synchronizations. So the effective throughput is the highest possible.

The strict max pool will make certain only a limited set of instances are created.

Most call originate from a pool of threads (remoting pool, servlet thread pool), so using the thread local pool is best.
However for example the old EJB timer service creates a new thread per callback, so then you would need to use the strict max pool.

In this case the thread local pool should suffice.
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