PI33945: HEAP GROWTH IN JOB SCHEDULER SERVANT REGION WHEN RUNNING WSGRID.

8.5.5.5: WebSphere Application Server V8.5.5 Fix Pack 5
8.5.5.6: WebSphere Application Server V8.5.5 Fix Pack 6
8.5.5.7: WebSphere Application Server V8.5.5 Fix Pack 7
8.5.5.8: WebSphere Application Server V8.5.5 Fix Pack 8
8.5.5.9: WebSphere Application Server V8.5.5 Fix Pack 9
8.5.5.10: WebSphere Application Server V8.5.5 Fix Pack 10
8.0.0.5: WebSphere Extended Deployment Compute Grid V8.0 Fix Pack 5
8.5.5.11: WebSphere Application Server V8.5.5 Fix Pack 11
8.5.5.12: WebSphere Application Server V8.5.5 Fix Pack 12
8.5.5.13: WebSphere Application Server V8.5.5 Fix Pack 13
8.5.5.14: WebSphere Application Server V8.5.5 Fix Pack 14
8.5.5.15: WebSphere Application Server V8.5.5 Fix Pack 15
8.5.5.14: WebSphere Application Server V8.5.5 Fix Pack 14
8.5.5.17: WebSphere Application Server V8.5.5 Fix Pack 17
8.5.5.20: WebSphere Application Server V8.5.5.20
8.5.5.18: WebSphere Application Server V8.5.5 Fix Pack 18
8.5.5.19: WebSphere Application Server V8.5.5 Fix Pack 19
8.5.5.16: WebSphere Application Server V8.5.5 Fix Pack 16
8.5.5.21: WebSphere Application Server V8.5.5.21

APAR status

• Closed as program error.

Error description

• Heap growth is observed in the Job Scheduler servant region
  when running Parallel Job Manager (PJM) jobs using WSGrid.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of IBM WebSphere Application      *
  *                  Server V8.5 Parallel Job Manager Batch      *
  *                  function using WSGrid to submit jobs.       *
  ****************************************************************
  * PROBLEM DESCRIPTION: When using WSGrid to submit Parallel    *
  *                      Job Manager jobs, heap growth will be   *
  *                      observed in the Job Scheduler.          *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  The problem occurs with ParallelJobManager (PJM) jobs submitted
  through WSGrid. The JMXListener receives notifications for all
  jobs, including PJM subjobs. é á Since the JobSchedulerMDB is no
  monitoring these jobs, a JobWatcher is not created for them.
  Therefore, when the notification comes into the listener, the
  job is added to a HashMap under the assumption that an early
  notification for the job was received.  Since the job
  submission for these jobs was not done through the
  JobSchedulerMDB, the entry is never removed from the HashMap.
  

Problem conclusion

• The code has been changed to detect that a notification is for
  a PJM subjob and not add an entry to the early notification
  HashMap.
  The fix for this APAR is currently targeted for inclusion in
  fix pack 8.5.5.5.  Please refer to the Recommended Updates
  page for delivery information:
  http://www.ibm.com/support/docview.wss?uid=swg27036319
  

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

  WEBS APP SERV N

• Fixed component ID

  5724H8800

Applicable component levels

• R850 PSY

     UP