Fix (APAR):  PM07757

Status:  Fix

Release:  6.1.1

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

Supersedes Fixes:  

CMVC Defect:  PM07757

Byte size of APAR:  966799

Date: 2010-03-04

Abstract:  The autonomic request flow manager (ARFM) incorrectly queues requests, possibly resulting in slow response times.

Description/symptom of problem:  
PM07757 resolves the following problem:

ERROR DESCRIPTION:                                              
Under low load the Autonomic Request FLow Manager (ARFM)        
incorrectly queues requests                                     

LOCAL FIX:                                                      
N/A                                                             

PROBLEM SUMMARY

USERS AFFECTED:
 All users of WebSphere Virtual Enterprise
Version 6.1.1.0

PROBLEM DESCRIPTION:
The autonomic request flow manager
(ARFM) incorrectly queues requests,
possibly resulting in slow response
times.

RECOMMENDATION:
None

Under low work loads, the ARFM incorrectly queues requests,
especially if the default service policy, which has a
response time target of one hour, is used.

In addition, queuing can occur when requests for a given
service policy have very wide variations in service times.

PROBLEM CONCLUSION:                                             
This fix reduces the target response time for the discretionary 
goal to one minute.                                             
                                                                
For requests that have very wide variations in service times    
the new arfmGatewayMaxStuckAdjust custom property is provided.  
To prevent long running requests from causing queuing, set      
this property to a value of 10 at the cell level.               


Directions to apply fix:  
Install Fix to:
NOTE: Developers -  Place and X next to the proper installation method and remove this note
__ Application Server Nodes
__ Deployment Manager Nodes
_X_ Both

NOTE:
The user must have Administrative rights in Windows, or be the Actual Root User in a UNIX environments. Also, you should be logged in with the same authority level when unpacking a fix, fix pack or refresh pack.

DOWNLOAD THE UPDATE INSTALLER TOOL IN ORDER TO INSTALL A FIX.
The Fix Installer can be downloaded from the following link:
http://www.ibm.com/support/docview.wss?rs=180&uid=swg21205991

The Update Installer for V5.0 does not have a maintenance directory. It uses fixpacks and fixes as the location of the unpacked files.

Customers must be at V6.1.0.17 or newer of the Update Installer.  This can be checked by reviewing the level of the Update Installer in file <was_root>/updateinstaller/version.txt.

1) Copy PKxxxxx.pak file directly to the maintenance directory

2) Shutdown WebSphere
Manually execute setupCmdLine.bat in Windows or . ./setupCmdLine.sh in Unix from the WebSphere instance that maintenance is being applied to.

3) Launch Update Installer

4) Enter the installation location of the WebSphere product you want to update.

5) Select the "Install maintenance package" operation.

6) Enter the file name of the maintenance package to install (PKxxxxx.pak file which was copied in the maintenance directory).  The V5.0 and V5.1 fix packs and fixes are unpacked as .jar files and should be unpacked into fixpacks or fixes directory.

7) Install the maintenance package.

8) Restart WebSphere



Directions to remove fix:  
NOTE:  The user must have Administrative rights in Windows, or be the Actual Root User in a UNIX environments.

NOTE:  FIXES MUST BE REMOVED IN THE ORDER 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, fix2 removed, and fix3 re-applied.

1) Shutdown WebSphere
Manually execute setupCmdLine.bat in Windows or . ./setupCmdLine.sh in Unix from the WebSphere instance that uninstall is being run against.

2) Start Update Installer

3) Enter the installation location of the WebSphere product you want to remove the fix.

4) Select  "Uninstall maintenance package" operation.

5) Enter the file name of the maintenance package to uninstall (6.1.1.0-WS-WXDOP-IFPM07757.pak).

6) UnInstall maintenance package.

7) Restart WebSphere



Directions to re-apply fix:  
1) Shutdown WebSphere

2) Follow the Fix instructions to apply the fix.

3) Restart WebSphere



Additional Information: