PK68766: MEMORY LEAKING IN WEBSPHERE APPLICATION SERVER PROXY/ODR WHEN TRUSTED INTERMEDIARY IS CONFIGURED

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

APAR status

• Closed as program error.

Error description

• If an On-Demand Router (ODR) or WebSphere Application Server
  Proxy is configured with a trusted intermediary, a header is
  sent in requests to the server which will result in excessive
  creation of VersionValues objects.  You might see something
  like the following from a heapdump after processing with
  HeapAnalyzer.
  
  
  TotalSize (TotalSize/HeapSize%) [ObjectSize]
  NumberOfChildObject(26,476)
  ObjectName Address
  773,598,384 (89%) [32] 2 java/lang/OutOfMemoryError
  773,592,912 (89%) [88] 17 array of java/lang/Object
  773,585,648 (89%) [304] 1 class
  com/ibm/wsspi/http/channel/values/VersionValues
  773,585,344 (89%) [24] 1 java/util/ArrayList
  773,585,320 (89%) [13,571,688] 3,392,918 array of
  java/lang/Object
  224 (0%) [56] 5
  com/ibm/wsspi/http/channel/values/VersionValues
  224 (0%) [56] 5
  com/ibm/wsspi/http/channel/values/VersionValues
  224 (0%) [56] 5
  com/ibm/wsspi/http/channel/values/VersionValues
  224 (0%) [56] 5
  com/ibm/wsspi/http/channel/values/VersionValues
  224 (0%) [56] 5
  com/ibm/wsspi/http/channel/values/VersionValues
  224 (0%) [56] 5
  com/ibm/wsspi/http/channel/values/VersionValues
  224 (0%) [56] 5
  com/ibm/wsspi/http/channel/values/VersionValues
  224 (0%) [56] 5
  com/ibm/wsspi/http/channel/values/VersionValues
  224 (0%) [56] 5
  com/ibm/wsspi/http/channel/values/VersionValues
  224 (0%) [56] 5
  com/ibm/wsspi/http/channel/values/VersionValues
  224 (0%) [56] 5
  com/ibm/wsspi/http/channel/values/VersionValues
  224 (0%) [56] 5
  com/ibm/wsspi/http/channel/values/VersionValues
  224 (0%) [56] 5
  com/ibm/wsspi/http/channel/values/VersionValues
  224 (0%) [56] 5
  com/ibm/wsspi/http/channel/values/VersionValues
  224 (0%) [56] 5
  com/ibm/wsspi/http/channel/values/VersionValues
  224 (0%) [56] 5
  com/ibm/wsspi/http/channel/values/VersionValues
  224 (0%) [56] 5
  com/ibm/wsspi/http/channel/values/VersionValues
  224 (0%) [56] 5
  com/ibm/wsspi/http/channel/values/VersionValues
  224 (0%) [56] 5
  com/ibm/wsspi/http/channel/values/VersionValues
  224 (0%) [56] 5
  com/ibm/wsspi/http/channel/values/VersionValues
  There are 3,392,898 more children
  

Local fix

• N/A
  
  However if you encounter problems with your file system filling
  up with heapdumps, please check the IBM WebSphere Application
  Server Infocenter for information on setting the JAVA_DUMP_OPTS
  environment variable.  This will limit the number of dumps
  created.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of IBM WebSphere Application      *
  *                  Server V6.0.2 and V6.1 Proxy Server and     *
  *                  On-Demand Router (ODR)                      *
  ****************************************************************
  * PROBLEM DESCRIPTION: Memory leaking when trusted             *
  *                      intermediary is configured              *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  If an ODR or Proxy Server is configured with a trusted
  intermediary, a header is sent in requests to the server which
  will result in excessive creation of VersionValues objects.
  

Problem conclusion

• The correct channel interface is used to create
  the VersionValues objects in this fix.
  
  The fix for this APAR is currently targeted for inclusion in
  fix packs 6.0.2.31 and 6.1.0.23.
  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:

Fix information

• Fixed component name

  WEBSPH APP SERV

• Fixed component ID

  5724J0800

Applicable component levels

• R60A PSY

     UP

• R60H PSY

     UP

• R60I PSY

     UP

• R60P PSY

     UP

• R60S PSY

     UP

• R60W PSY

     UP

• R60Z PSY

     UP

• R61A PSY

     UP

• R61H PSY

     UP

• R61I PSY

     UP

• R61P PSY

     UP

• R61S PSY

     UP

• R61W PSY

     UP

• R61Z PSY

     UP