Fix (APAR):  JR24190

Status:  Fix

Release:  6.0.1.3,6.0.1.2

Operating System:  AIX,HP-UX,Linux,Solaris,Windows

Supersedes Fixes:  THIS FIX IS A PRE-REQ FOR JR25291 ON 6.0.1.2 AND 6.0.1.3 VERSIONS OF WBI.

CMVC Defect:  JR24190

Byte size of APAR:  55519

Date: 2007-02-06

Abstract:  Artifact Loader looks at every classloader created in WAS and when many applications are deployed to WPS, the performance drops significantly.

Description/symptom of problem:  
JR24190 resolves the following problem:

ERROR DESCRIPTION:                                              
Artifact Loader looks at every classloader created in WAS and   
when many applications are deployed to WPS, the performance     
drops significantly.                                            
                                                                
                                                                
                                                                
                                                                
---                                                             
Reopened since this was closed before IFIX was published        

LOCAL FIX:                                                      
N/A                                                             

PROBLEM SUMMARY

USERS AFFECTED:
WebSphere Process Server 6.0.1.x users which
deploy many applications on server.

PROBLEM DESCRIPTION:
Artifact Loader looks at every
classloader created in WAS and when
many applications are deployed to WPS,
the performance drops significantly.

RECOMMENDATION:
This has been closed as FIN, but there is
another APAR JR25291, it required this fix
as pre-req and hence closing this APAR with
code changes, also an iFIX is going to get
published for this effect.

Artifact Loader looks at every classloader created in WAS and
when many applications are deployed to WPS, the performance
drops significantly.

PROBLEM CONCLUSION:                                             
This isssue is related to performance but this iFIX is          
required when a user needs JR25291 iFIX.                        


Directions to apply fix:  
Before applying the iFix ensure that WebSphere Process Server 6.0.1 is installed on the system.
Also 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

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. 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

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: