PH35225: IMPROVE HANDLING OF CANCEL NOTIFICATIONS IN COMPUTE GRID

APAR status

• Closed as program error.

Error description

• When a cancel is issued, the job scheduler marks the status of
  the in the JOBSTATUS to CANCEL_PENDING. It then sends a
  notification to the endpoint server to cancel the job. The
  endpoint receives/processes the cancel request and if it can be
  cancelled (i.e. still running) updates the status of the job in
  LOCALJOBSTATUS to RESTARTABLE (for example). It then sends a
  notification to the job scheduler that it has updated its
  status. When the job scheduler receives that status update, it
  then marks its status in JOBSTATUS to RESTARTABLE.
  
  If the job
  is completed by the time the endpoint receives this
  notification, there is no cancel that can happen so the job
  will appear as CANCEL_PENDING on the job scheduler
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of IBM WebSphere Application      *
  *                  Server                                      *
  *                  Java Batch                                  *
  ****************************************************************
  * PROBLEM DESCRIPTION: Java batch job canceled remains in      *
  *                      cancel pending state even though job is *
  *                      in a final state on endpoint            *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  When a cancel is issued for a java batch job, the job scheduler
  sets the job status in the JOBSTATUS table to CANCEL_PENDING. It
  then sends a notification to the batch endpoint server to cancel
  the job.
  The endpoint receives/processes the cancel request and if it can
  be cancelled (still running) updates the status of the job in
  the LOCALJOBSTATUS table to RESTARTABLE (for example). It then
  sends a notification to the job scheduler that it has updated
  its status. When the job scheduler receives that status update,
  it then marks the status in the JOBSTATUS table to RESTARTABLE.
  If the job is no longer running by the time the endpoint
  receives this notification, the job will remain seen as
  CANCEL_PENDING on the job scheduler until the server is
  restarted.
  

Problem conclusion

• A code update has been made in the cancel processing on the
  batch endpoint server.  If a job has completed on the endpoint
  when a cancel command is received, a job status update will be
  sent to the Job Scheduler that issued the cancel so that the job
  will no longer remain in cancel pending state.
  
  The fix for this APAR is targeted for inclusion in fix pack
  9.0.5.9 and 8.5.5.21. 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 FOR Z

• Fixed component ID

  5655I3500

Applicable component levels

• R900 PSY

     UP