PK14442: PMI0023W messages appear in the WebSphere SystemOut.log file when using WebSphere Application Server Version 5.x

 A fix is available

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APAR status
Closed as program error.

Error description
When using message-driven beans (MDBs) running inside of
WebSphere Application Server Version 5., the following warning
message occassionally appears in the application server's
SystemOut.log file:

PmiRegistry   W PMI0023W: Unable to register PMI module due
   to duplicate name: <name>
Local fix Problem summary
****************************************************************
* USERS AFFECTED: All users of WebSphere Application Server    *
*                 V5.0 for z/OS                                *
****************************************************************
* PROBLEM DESCRIPTION: The warning message PMI0023W may appear *
*                      in WebSphere Application Server for     *
*                      z/OS servant output unnecessarily.      *
*                                                              *
*                      Also, the "MDB Stats" DISPLAY WORK      *
*                      commands do not work correctly on a     *
*                      newly started ListenerPort.             *
*                                                              *
*                      Also, if MDB trace is enabled, a        *
*                      second ListenerPort 'stop' command      *
*                      can fail.                               *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
When running with PMI statistics enabled and running MDB
applications, an unnecessary message like the following
may appear in the servant job output, even though the
duplication is caused in this case by WebSphere Application
Server for z/OS code attempting to register the module for a
second time:

 PMI0023W: Unable to register PMI module due to duplicate name:
 <name>

Also, a ListenerPort starting after MDB stats collection has
been enabled will not display the correct statistics when the
DISPLAY WORK command is subsequently issued.  This applies to
both a new ListenerPort and a ListenerPort stopped then started
after the MDB stats collection is enabled through the console
command:

 F <server>,MDBSTATS,ENABLE

The display work command:

 F <server>,DISPLAY,WORK,MDB,STATS

will show incorrect values for stats: TIME, TOTAL, EXCS, BLOCKS

Also, when MDB tracing is enabled (at the 'debug' trace level,
specifically), and a ListenerPort 'stop' command is issued,
the 'stop' command can return an error message.  Functionally
there is no failure since the ListenerPort is already stopped.

The user using the Administrative Console to deliver the second
'stop' will get a message in the Administrative Console GUI:

 "Listener port <name> could not be stopped."

The user using wsadmin scripting to deliver the second 'stop'
command will get a message like:

 WASX7015E: Exception running command:
  "AdminControl.invoke(mylp,"stop")"; exception information:
   javax.management.RuntimeMBeanException
   java.lang.NullPointerException:
   java.lang.NullPointerException
Problem conclusion
PMI registration is moved strictly to the EJB container so that
MDB code does not mistakenly deliver a duplicate registration.

MDB Stats enablement processing fixed to cover newly-starting
ListenerPorts.

MDB tracing fixed to eliminate stop() failure.

APAR PK14442 is associated with SERVICE LEVEL W502036 of
WebSphere Application Server V5.0 for z/OS.
Temporary fix Comments
APAR information
APAR number PK14442
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 2005-11-02
Closed date 2005-11-17
Last modified date 2007-08-21

APAR is sysrouted FROM one or more of the following:
PK14441

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: swg1PK14442.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 #: PK14442
IBM Group: Software Group
Modified date: Aug 21, 2007