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  1. JDK
  2. JDK-4741914

RFE: Dynamic heap sizes

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    • gc
    • x86
    • linux, windows_xp



      Name: gm110360 Date: 09/04/2002


      FULL PRODUCT VERSION :
      java version "1.4.1-rc"
      Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.1-rc-b18)
      Java HotSpot(TM) Client VM (build 1.4.1-rc-b18, mixed mode)

      FULL OPERATING SYSTEM VERSION :
      doen't apply

      A DESCRIPTION OF THE PROBLEM :
      Under some circumstances it might be necessary, that a Java
      server application needs more memory than it has been given
      with the -Xmx parameter.

      Reducing the max heap size might require objects to be
      relocated in the heap. Increasing not.

      Solution might be related to bug#4642192, if bug#4642192
      solution requires relocation of objects in the heap.

      It's "boring" to restart a Java application just to give it
      more memory. This gets more important for server
      applications. For example J2EE app servers that get more and
      more applications...

      EXPECTED VERSUS ACTUAL BEHAVIOR :
      Methods like:

      public void setMaxHeapSize(long heapSize);
      public long getMaxHeapSize();



      REPRODUCIBILITY :
      This bug can be reproduced occasionally.

      CUSTOMER WORKAROUND :
      Restart the whole application.
      (Review ID: 164039)
      ======================================================================

            ysr Y. Ramakrishna
            gmanwanisunw Girish Manwani (Inactive)
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