PQ54352: APAR FOR CUMULATIVE SESSION FIX

A fix is available
WebSphere Application Server Version 4.0 Fix Pack 3 (Version 4.0.3)

APAR

APAR status
Closed as program error.

Error description
Cummulative efix.  Fixes included :
-Invalidation thread wake up interval is made configurable.
-Only one invalidation thread per JVM
-Reduced non parameterized sql statements in invalidation path t
o effectively use db2 cache.
-Fixes the window of multiple reaper threads doing concurrent de
letes in compatibility mode
Cummulative efix. Fixes included :-Invalidation thread wake up interval is made configurable.-Only one invalidation thread per JVM-Reduced non parameterized sql statements in invalidation path to effectively use db2 cache.-Fixes the window of multiple reaper threads doing concurrent deletes in compatibility mode
Local fix
Problem summary
****************************************************************
* USERS AFFECTED: WebSphere Application Server - HttpSession   *
*                 Users                                        *
****************************************************************
* PROBLEM DESCRIPTION: The frequency of session invalidation   *
*                      and a invalidation thread per webapp    *
*                      cause performance to slow down in a     *
*                      clustered environment.                  *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
The frequency of session invalidation and a invalidation
thread per webapp cause performance to slow down in a
clustered environment.
Problem conclusion
This APAR contains the following fixes :
    - Invalidation thread wake up interval is made configurable
    - Only one invalidation thread per JVM
    - Reduces non parameterized sql statements in invalidation
      path to effectively use db2 cache
    - Fixes the window of multiple reaper threads doing
      concurrent deletes in compatibilty mode
This APAR contains the following fixes :- Invalidation thread wake up interval is made configurable- Only one invalidation thread per JVM- Reduces non parameterized sql statements in invalidationpath to effectively use db2 cache- Fixes the window of multiple reaper threads doingconcurrent deletes in compatibilty mode
Temporary fix
PQ54352
Comments
APAR information
APAR numberPQ54352
Reported component nameWAS ADVANCED SU
Reported component ID5648C8402
Reported release350
StatusCLOSED PER
PENoPE
HIPERNoHIPER
Submitted date2001-11-05
Closed date2001-11-27
Last modified date2002-03-20

APAR is sysrouted FROM one or more of the following:

APAR is sysrouted TO one or more of the following:APAR is sysrouted FROM one or more of the following:

PQ59258

Modules/Macros
SESSIONS
APAR is sysrouted TO one or more of the following:PQ59258Modules/Macros

Fix information
Fixed component nameWAS ADVANCED SU
Fixed component ID5648C8402

Applicable component levels
R350 PSYUP











Document Information

Product categories: Software, Application Servers, Distributed Application & Web Servers, WebSphere Application Server, General
Software version: 350
Reference #: PQ54352
IBM Group: Software Group
Modified date: 2002-03-20