PK39891: CHANGING THE HEAPSIZE MORE THAN 2048 FAILS WITH "MAXIMUM HEAP SIZE SHOULD BE AN INTEGER IN THE RANGE 0 THROUGH 2048" MSG

Java SDK 1.5 SR8 Cumulative Fix for WebSphere Application Server
Java SDK 1.5 SR8 Cumulative Fix for WebSphere Application Server
Java SDK 1.5 SR10 Cumulative Fix for WebSphere Application Server
6.1.0.31: Java SDK 1.5 SR11 FP1 Cumulative Fix for WebSphere Application Server
6.1.0.33: Java SDK 1.5 SR12 FP1 Cumulative Fix for WebSphere
6.1.0.29: Java SDK 1.5 SR11 Cumulative Fix for WebSphere Application Server
6.1.0.35: Java SDK 1.5 SR12 FP2 Cumulative Fix for WebSphere
6.1.0.37: Java SDK 1.5 SR12 FP3 Cumulative Fix for WebSphere
6.1.0.39: Java SDK 1.5 SR12 FP4 Cumulative Fix for WebSphere Application Server
6.1.0.41: Java SDK 1.5 SR12 FP5 Cumulative Fix for WebSphere Application Server
6.1.0.43: Java SDK 1.5 SR13 Cumulative Fix for WebSphere Application Server
6.1.0.45: Java SDK 1.5 SR14 Cumulative Fix for WebSphere Application Server
6.1.0.47: WebSphere Application Server V6.1 Fix Pack 47
6.1.0.47: Java SDK 1.5 SR16 Cumulative Fix for WebSphere Application Server
6.1.0.9: WebSphere Application Server V6.1 Fix Pack 9 for Solaris

APAR status

• Closed as program error.

Error description

• In the WebSphere Application Server 6.1.0.X, changing the Heap
  size more than 2048 MB fails with the following message.
  
   "Maximum Heap Size should be an integer in the range 0 through
  2048."
  
  To Recreate :
  
  - Click Application servers > server_name > Process Definition >
  Java Virtual Machine.
  - Enter the heap size value greater than 2048.
  
  WebSphere Application Server 6.1.0.5 or earlier release.
  

Local fix

• set JVM heap size via parameters -Xms, -Xmx in field "Generic
  JVM arguments" .
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: WebSphere Application Server version 6.1     *
  *                 users of the Administrative console          *
  *                 application trying to increase the heap      *
  *                 size more than 2048.                         *
  ****************************************************************
  * PROBLEM DESCRIPTION: The JVM Initial or Maximum heap size    *
  *                      couldn't be set more than 2 GB.         *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  After upgrade from Service Pack 6.1.0.2 to 6.1.0.3, it is not
  possible to set the JVM heap size bigger than 2GB via the
  Administrative Console in the fields :
  "Maximum heap size"/"Initial Heap Size"
  
  Navigate through the path:
  Application servers > server_name >
  Process Definition > Environment Entries >
  Java Virtual Machine.
  
  When trying to put a value more than 2048, the following error
  message is displayed:
  "Maximum/Initial Heap Size should be an integer in the range
  0 through 2048."
  
  The validation rule of disallowing a heap size greater than
  2048 is applicable to Z/OS only. It was incorrectly applied to
  all platforms.
  

Problem conclusion

• The code has been modified to make the JVM Heap Size
  restricted only for Z/OS machines.
  
  The fix for this APAR is currently targeted for inclusion in
  fixpack 6.1.0.9. Please refer to the recommended updates page
  for delivery information:
  http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Modules/Macros

• WEBUI
  

Fix information

• Fixed component name

  WEBS APP SERV N

• Fixed component ID

  5724H8800

Applicable component levels

• R61A PSY

     UP

• R61H PSY

     UP

• R61I PSY

     UP

• R61P PSY

     UP

• R61S PSY

     UP

• R61W PSY

     UP