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java.lang.OutOfMemoryError: Java heap space

edited Mar 11, 2011 11:46PM in Oracle Weblogic Server (MOSC) 3 commentsAnswered
  Hi all,

I install weblogic 10.3.2 and portal 11g in Clustered Environment, I'm facing the error: " java.lang.OutOfMemoryError: Java heap space ". I tried many ways but until now, I have not known how to solve this problem.
My system uses Oracle Portal 11g 64 bit on RHEL 5.3 x64, I have 2 Managed Server (WLS_PORTAL and WLS_PORTAL1) in WL Clustered Environment. When I deploy or run java applications for a time, it shows this error on log "WLS_PORTAL-diagnostic.log" or "WLS_PORTAL1-diagnostic.log" and one of the Managed Server down.
I use Sun jdk1.6.0_19 version. First, the default max heap size was 512MB, after I increased it up to 1024MB, it still got the error. The MaxPermSize=512MB.

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