Fix (APAR):  PQ69244

Status:  Fix

Release:  4.0.4,4.0.3

Operating System:  N/A

Supersedes Fixes:  PQ68480



CMVC Defect:  PQ69244

Byte size of APAR:  1028960

Date: 02/21/03

Abstract:  Faster Cleanup of Session References during Invalidation Process needs to be performed

Description/symptom of problem:  The Invalidation Thread cleans up the session references fromthe database for the sessions which have timed out. In the case of sessions which contained listeners
the sessions could be cleaned up efficiently freeing up memory sooner. This fix cleans up sessions
efficiently during the invalidation process.



Directions to apply fix:  

1) Create temporary "efix" directory to store the zip/tar file:
             AIX: /tmp/WebSphere/efix
   Solaris/Linux: /tmp/WebSphere/efix
         Windows: c:\temp\WebSphere\efix

2) Copy zip/tar file to the directory
   
3) Unzip/untar the file

4) Shutdown WebSphere

5) Run the jar file with the following command answering questions/prompts as they appear:
   java -jar <jarfile name>

6) Restart WebSphere

7) The temp directory may be removed but the zip/tar file should be saved.  Do not remove 
    any files created and stored in the <WASHOME>/WebSphere/AppServer/efix/<APAR#> directories.
   These files are required if an efix is to be removed.





Directions to remove fix:  

NOTE:  EFIXES MUST BE REMOVED IN THE ORDER THEY WERE APPLIED.  DO NOT REMOVE AN EFIX UNLESS
       ALL EFIXES APPLIED AFTER IT HAVE FIRST BEEN REMOVED.  YOU MAY REAPPLY ANY REMOVED EFIX.

Example:  If your system has efix1, efix2, and efix3 applied in that order and efix2 is to be
          removed, efix3 must be removed first, efix2 removed, and efix3 re-applied.


1) Change directory to the efix location (<WASHOME>/WebSphere/AppServer/efix/<APAR#>).

2) Shutdown WebSphere

3) Run the backup jar file with the following command:
   java -jar <backup_APAR#>

4) Restart WebSphere




Directions to re-apply fix:  

Follow the instructions for applying an efix.  If the backup files still exist (from the 
previous efix application), you will be prompted to overwrite.  Answer "yes" at the overwrite 
prompts.


Trouble shooting
--------------------------------------------------------------------------------------
o  If an efix complains about the container type and you are sure it should match, contact
   WebSphere L2 Support for assistance with the -SkipContainerCheck option to the efix jar.

o  If the efix complains about the version of XML parser, move the file 
   $WASROOT/jre/lib/ext/xerces.jar to a temporary location (such as c:\temp), load the efix 
   and move the file back to it's original location.





Additional Information:  
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Important: This fix prereqs PQ68519.