PK13607: SMF 120 J2EE CONTAINER INTERVAL RECORDS REPORT BEAN METHOD INVOCATION DATA UNDER THE WRONG BEANS.

 A fix is available

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APAR status
Closed as program error.

Error description
The customer collects SMF 120 J2EE Container Interval records.
Some of the Container Interval records contained incorrect
information.  Some of the bean methods invoked during the
recording interval were reported as belonging to the wrong bean.
  Closer study of the SMF records also showed that multiple bean
sections for the same exact bean AMCName exist in the same
Interval Record. This should theoretically be impossible since
the AMCName for each instance is the same. The AMCUuid value for
these duplicated bean sections are different.
  This problem is noticed when the server is under heavy load.
Simple test cases to invoke a single bean method do not exhibit
the problem.
Local fix Problem summary
****************************************************************
* USERS AFFECTED: All users of WebSphere Application Server    *
*                 V5.0 for z/OS                                *
****************************************************************
* PROBLEM DESCRIPTION: Incorrect data reported in SMF 120      *
*                      J2EE Container Interval records:        *
*                       BeanMethodInvoked Events report        *
*                       different AMCUUID names for the same   *
*                       BeanMethod.                            *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
SMF BeanMethodInvoked Events report several different AMCUUID
names for the same BeanMethod.  The AMCUUID should be
consistent across BeanMethodInvoked records for the same
BeanMethod.

The AMCUUID field storage in the SMF Event was not initialized
appropriately. The area of the field beyond the actual length
of the AMCUUID data it contained was "dirty" and therefore did
not equal-compare or hash-code properly.  This caused the
AMCUUID to appear distinctly different from previous SMF
BeanMethodInvoked Event records that contained the "same"
AMCUUID.
Problem conclusion
The SMF Event recording code was modified to initialize (clear)
the entire AMCUUID field storage area prior to filling the
field with the event's AMCUUID data.  This will clear any
random data that may be present in the AMCUUID field in areas
beyond the length of the actual AMCUUID data.

APAR PK13607 is associated with SERVICE LEVEL W502036 of
WebSphere Application Server V5.0 for z/OS.
Temporary fix Comments
APAR information
APAR number PK13607
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 2005-10-18
Closed date 2005-11-17
Last modified date 2005-12-07

APAR is sysrouted FROM one or more of the following:
PK10528

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 UK09246    UP05/11/22 P F511

  Fix is available
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Document Information


Current web document: swg1PK13607.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 #: PK13607
IBM Group: Software Group
Modified date: Dec 7, 2005