[jboss-user] [Performance Tuning] - GC optimization issue - Pls assist.
Titus Rakkesh
do-not-reply at jboss.com
Mon May 21 13:58:51 EDT 2012
Titus Rakkesh [https://community.jboss.org/people/trakkesh] created the discussion
"GC optimization issue - Pls assist."
To view the discussion, visit: https://community.jboss.org/message/736877#736877
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Hi Friends,
We have an EJB 3.0 application which uses Oracle 10g datasource and is deployed in 2 cluster nodes of EAP 4.3.0 servers. The physical servers are sparc SUNW,SPARC-Enterprise-T5120 (SunOS 5.10). As a GC config we have,
-Xmx1503m -Xms1503m -Xss256k -XX:SurvivorRatio=8 -XX:TargetSurvivorRatio=90 -XX:MaxTenuringThreshold=31 -XX:PermSize=128m
-XX:MaxPermSize=128m -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:+CMSIncrementalPacing -XX:CMSIncrementalDutyCycleMin=0
-XX:CMSIncrementalDutyCycle=10 -XX:+AggressiveOpts -Dsun.lang.ClassLoader.allowArraySyntax=true
And after running 2 days, the Eden Space does able to collect and the application hangs.
I have attached the GC logs, for your reference.
Pls assist how we can resolve this issue?
Thanks,
Rakkesh
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