[rules-users] permgen leak

[brachi]

i'm using drools 5.5.0, after the rules deployment, (associate DRL's with the
KnowladBase and compile them)
my permgen grows to 500m, and also if i undeploy, the permgen doesn't
cleaned up. (only if i restart the server)
It won't help me to increase the permgen size, because the client does a lot
of heavy deployment, and can be in the maximum size by 3-4 deployments.
I tried this tomcat flags, and it does nothing: 
-XX:+UseConcMarkSweepGC  -XX:+CMSPermGenSweepingEnabled
-XX:+CMSClassUnloadingEnabled -XX:+UseParNewGC
I tried set the flag : PermGenThreshold=0, like other people suggested in
your forums and it doesn't help.
any help? it's production issue...



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