Fix (APAR):  JR29465

Status:  Fix

Release:  6.1.0.1

Operating System:  AIX,HP-UX,i5/OS,Linux,Solaris,Windows

Supersedes Fixes:  

CMVC Defect:  xxxxxx

Byte size of APAR:  10697

Date: 2008-08-10

Abstract:  Performance problem when parsing large XML data.

Description/symptom of problem:  
JR29465 resolves the following problem:

ERROR DESCRIPTION:?                                             
Heavy parsing cost of large messages coming into server when    
ITCAM environment is enabled.                                   

LOCAL FIX:?                                                     
None                                                            

PROBLEM SUMMARY:?

USERS AFFECTED:
Websphere Process Server 6.1.0.x users

PROBLEM DESCRIPTION:
Performance problem when parsing
large XML data.

RECOMMENDATION:
None

A method coded to get the failure cause in case of an
exception, does a complete parse of message body without
checking if it is an exception.

PROBLEM CONCLUSION:?                                            
A check was added to prevent unnecessary message parsing.       
Applying the interim fix will help achieve significant CPU      
usage reduction.                                                


Directions to apply fix:  
Download and follow Update Installer installation instructions.  The Update Installer can be downloaded from the following link:
http://www.ibm.com/support/docview.wss?rs=180&uid=swg21205991

1) Copy the pak file to the directory maintenance in the UpdateInstaller directory

2) Shutdown WebSphere Process Server. It is important that you perform a controlled and complete shutdown of the server to ensure that all transactions have completed, before installing the fix.

3) Run the UpdateInstaller and follow the prompts.

4) Restart WebSphere Process Server.

Directions to remove fix:  
NOTE:  FIXES MUST BE REMOVED IN THE REVERSE ORDER IN WHICH THEY WERE APPLIED.  DO NOT REMOVE A FIX UNLESS  ALL FIXES APPLIED AFTER IT HAVE FIRST BEEN REMOVED.  YOU MAY REAPPLY ANY REMOVED FIX.

Example:  If your system has fix1, fix2, and fix3 applied in that order and fix2 is to be removed, fix3 must be removed first, then fix2 may be removed

1) Shutdown WebSphere Process Server. It is important that you perform a controlled and complete shutdown of the server to ensure that all transactions have completed, before installing the fix.

2) Follow the Fix instructions that are packaged with the Fix Installer on how to uninstall and reinstall the Fix.

3) Restart WebSphere Process Server.

Directions to re-apply fix:  
1) Shutdown WebSphere. It is important that you perform a controlled and complete shutdown of the server to ensure that all transactions have completed, before installing the fix.

2) Run the UpdateInstaller and follow the instructions. The Update Installer can be downloaded from the following link:
http://www.ibm.com/support/docview.wss?rs=180&uid=swg21205991

3) Restart WebSphere Process Server.

Additional Information: