PK00472: BACKPORT THE EJB FINDER PERFORMANCE ENHANCEMENT THAT IS ALREADY IN DISTRIBUTED VER 5.1

 A fix is available

Obtain the fix for this APAR



APAR status
Closed as program error.

Error description
Backport the EJB finder performance enhancement that is already
in distributed ver 5.1
Local fix Problem summary
****************************************************************
* USERS AFFECTED: All users of WebSphere Application Server    *
*                 V5.0 for z/OS                                *
****************************************************************
* PROBLEM DESCRIPTION: When a finder is issued by a caller,    *
*                      the EJB 2.0 specification for           *
*                      Persistence Management 'Flush before    *
*                      find' behaviour is being ignored by     *
*                      the runtime. All beans, even those not  *
*                      related to the finder, are flushed.     *
*                      (backend data updated). Data may        *
*                      prematurely be placed in the backing    *
*                      store.                                  *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
'Flush before find' behaviour is required by EJB 2.0 Spec,
which means before a finder is driven to the database, all
(dirty) beans related to that finder must be flushed to the
backing store to ensure that the most up to date data is
available to the finder in question. A problem exists where all
beans are flushed, not only the dirty beans.
Problem conclusion
Code has been modified to only flush those beans related to the
finder which are dirty.

APAR PK00472 is associated with SERVICE LEVEL W502024 of
WebSphere Application Server V5.0 for z/OS.
Temporary fix Comments
APAR information
APAR number PK00472
Reported component name WEBSPHERE FOR Z
Reported component ID 5655I3500
Reported release 500
Status CLOSED PER
PE NoPE
HIPER NoHIPER
Special Attention NoSpecatt
Submitted date 2005-02-02
Closed date 2005-02-19
Last modified date 2005-03-01

APAR is sysrouted FROM one or more of the following:
PQ99542

APAR is sysrouted TO one or more of the following:

Modules/Macros
BBOUBINF          

Publications Referenced

Fix information
Fixed component name WEBSPHERE FOR Z
Fixed component ID 5655I3500

Applicable component levels
R500 PSY UK00732    UP05/02/23 P F502

  Fix is available
Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.


Document Information


Current web document: swg1PK00472.html
Product categories: Software > Application Servers > Distributed Application & Web Servers > WebSphere Application Server for z/OS
Operating system(s):
Software version: 500
Software edition:
Reference #: PK00472
IBM Group: Software Group
Modified date: Mar 1, 2005