2 Replies Latest reply on Jun 16, 2011 6:39 PM by Tejas Joshi-Oracle


      Hi All,

      I am working on UCM 11g deployed on WebLogic 10.3.4. When we open System Audit Information from UCM home, it was giving error *"java.lang.OutOfMemoryError: allocLargeObjectOrArray"*. I have increased the following parameters in setDomains.sh file:-


      WLS_MEM_ARGS_32BIT="-Xms256m -Xmx2048m"

      After restarting the Admin and Managed server, we are not getting the error.
      But the system audit information says Total JVM Memory --- 512M.

      Why it is not showing 2048M?

      Do i need to set any parameters in any of other files in order to reflect JVM Memory value?

      Please advise.

        • 1. Re: JVM
          René van Wijk
          The memory parameter are unfortunately scattered over the whole setDomainEnv file, so you
          can easily edit the wrong parameters which will not be picked-up.

          A good way to proceed is to use the USER_MEM_ARGS variable.

          Usually at the top of the file you can see the following entries:
          export WL_HOME
          export BEA_JAVA_HOME
          export SUN_JAVA_HOME
          beneath these entries you can add the variable USER_MEM_ARGS (which will override all the other JVM configuration), for example,
          # Memory arguments
          USER_MEM_ARGS="-Xms512m -Xmx512m ..."
          export USER_MEM_ARGS
          # if you want to use JRockit as the JVM you have to set the JAVA_VENDOR
          export JAVA_VENDOR
          # the following is part of the original script
          if [ "${JAVA_VENDOR}" = "Oracle" ] ; then
          • 2. Re: JVM
            Tejas Joshi-Oracle
            Manikandan, Assuming you have set the JVM heap values at correct location in setDomain.sh... you need to be mindful that at restart weblogic JVM will not reach maximum, As you have set minimum to -Xms256... it will start at 256 and gradually increase upto 2048 when required. I presume when you restarted the server, it only felt the need to reach 512MB based on the objects created.

            If you want the server to start at 2048MB, set the heap settings to -Xms2048m -Xmx2048m.