I would be nice which JBoss version you would like to use.
But for JBoss 2.4.x you need just enough memory to use it under high load but otherwise I know several clients using JBossMQ in production.
In JBoss 3.0 the memory can be swapped out and therefore you should be able to run with less (but, of course, the performance is not that great then).
Have fun - Andy
You mention memory. I was doing some jms testing and the
performance was not that good.
How do you assign more memory to jbossmq or jboss for that matter?