[jboss-user] [Beginner's Corner] - stopping a war doesn't release memory?

[Michael Whitman]

Michael Whitman [http://community.jboss.org/people/gregarine] created the discussion

"stopping a war doesn't release memory?"

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I have an instance of JBoss 4.0.5.GA running 3 wars.  When JBoss starts up it looks like it has almost 2 gig of free memory. Over 3 or 4 days that free memory is used up and JBoss locks up requiring a restart.  So I suspect a memory leak.  This weekend i watched the memory decline and when it got pretty low (200 meg) I stopped and restarted each war from the JMX console one at a time.  I thought if one of my wars had a memory leak I would see GC and the free memory would jump back up.  This is not what happened.  There was no memory recovered.  I had to restart JBoss. I do see little GCs happening occasionally but I don't understand why stopping a war would not release a chunk of memory? Xmx is 2g so is Xmx. I am running Java 1.5.0_17.
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