PQ59258: APAR FOR CUMULATIVE SESSION FIX

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
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
Temporary fix
PQ54352
Comments
APAR information
APAR number PQ59258
Reported component name WEBSPHERE AE AI
Reported component ID 5630A2200
Reported release 400
Status CLOSED PER
PE NoPE
HIPER NoHIPER
Submitted date 2002-03-20
Closed date 2002-03-20
Last modified date 2002-03-20

APAR is sysrouted FROM one or more of the following:
PQ54352

APAR is sysrouted TO one or more of the following:

Modules/Macros
SESSIONS          

Fix information
Fixed component name WEBSPHERE AE AI
Fixed component ID 5630A2200

Applicable component levels
R400 PSY    UP


Document Information


Product categories: Software > Application Servers > Distributed Application & Web Servers > WebSphere Application Server > General
Operating system(s):
Software version: 400
Software edition:
Reference #: PQ59258
IBM Group: Software Group
Modified date: Mar 20, 2002