PH57273: "THE OUTPUT FILE FOR THE OPERATION IS NULL" MESSAGE (NULL) APPEARS WHEN TAKE SYSTEM DUMP FROM ADMINISTRATIVE CONSOLE.

9.0.5.20: WebSphere Application Server traditional Version 9.0.5.20

APAR status

• Closed as program error.

Error description

• In the administrative console, when navigate "Troubleshooting" >
  "Java dumps and cores", select application servers and press
  "System dump" button, then system dump (core dump) is generated.
  
  
  At that time, following message appears in administrative
  console.
  
  
   System dump request was sent successfully to <serverName>.
   The output file for the operation is <generated dump file
  location>.
  
  If a piped program is specfied to Linux core_pattern is
  specified and changed dump generating location, null appears at
  <gemerated dump file location> of above message.
  

Local fix

• Set core to Linux core_pattern (instead of piped program).
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of IBM WebSphere Application      *
  *                  Server                                      *
  ****************************************************************
  * PROBLEM DESCRIPTION: When generating System Core dumps from  *
  *                      the Administrative Console, the output  *
  *                      file for the operation is null.         *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  If system core dumps are piped to an external program by
  specifying it in the Linux core_pattern file, the JVM may be
  unable to locate the core dumps. The message in the
  Administrative Console to indicating the core dump file location
  will be null.
  

Problem conclusion

• The code was updated to ensure if the JVM is unable to locate th
  file location of the core dump file, it will not show null, in
  the Administrative Console.
  
  The fix for this APAR is targeted for inclusion in fix pack
  8.5.5.25 and 9.0.5.19. For more information, see 'Recommended
  Updates for WebSphere Application Server':
  https://www.ibm.com/support/pages/node/715553
  

Temporary fix

Comments

APAR Information

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

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

Fix information

• Fixed component name

  WEBSPHERE APP S

• Fixed component ID

  5724J0800

Applicable component levels