PH54614: MBEAN FOR ACTIVECOUNT ORB.THREAD.POOL IS INCORRECT AFTER SERVANT CRASH

APAR status

• Closed as program error.

Error description

• If a WebSphere Application Server servant crashes while there
  are still active requests being processed, Tivoli Performance
  Viewer (or other performance tooling) may show a wrong count for
  ActiveCount ORB Thread Pool. The MBean that holds the active
  value incorrectly reports the requests that were active during
  the crash as still active even if they were terminated. PH29087
  addressed similar issue but for overall Thread Active Count.
  This apar address ORB thread Pool count.
  

Local fix

• n/a
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of IBM WebSphere Application      *
  *                  Server                                      *
  *                  V9.0 and v8.5.5                             *
  ****************************************************************
  * PROBLEM DESCRIPTION: TPV shows wrong count for thread pool   *
  *                      statistics after servant crashes or is  *
  *                      shut-down.                              *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  If a WebSphere Application Server servant crashes while there
  are still active requests being processed, Tivoli Performance
  Viewer (or other performance tooling) may show a wrong count
  for
  the specific sub-thread pool (i.e. ActiveCount for ORB Thread
  Pool). The MBean that holds the active
  value incorrectly reports the requests that were active during
  the crash as still active even if they were terminated. PH29087
  addressed similar issue but for overall Thread Active Count.
  This apar address ORB thread Pool count.
  

Problem conclusion

• The WebSphere Application Server has been updated to properly
  remove aggregation of statistics when a servant is shut down or
  crashes.
  
  The fix for this APAR is targeted for inclusion in fix pack
  8.5.5.25 and 9.0.5.17. For more information, see 'Recommended
  Updates for WebSphere Application Server':
  https://www.ibm.com/support/pages/node/715553
  

Temporary fix

• n/a
  

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