PH54703: ALWAYS AVERAGE STUCK VALUES USING STUCKQUERYINTERVAL

APAR status

• Closed as new function.

Error description

• When using stuckQueryAverageInterval  with
  stuckQueryDetectionInterval when the
  detection interval is longer, it take longer to switch out of
  stuck mode.   By using the stuckQueryInterval as a base for
  gathering the stuck duration times when
  stuckQueryDetectionInterval
  > stuckQueryInterval,  this will allow the average to continue
  to be calculated during the longer times.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of IBM WebSphere Application      *
  *                  Server using connection pooling and stuck   *
  *                  connection detection.                       *
  ****************************************************************
  * PROBLEM DESCRIPTION: Switching from stuck mode true to       *
  *                      stuck mode false may take longer then   *
  *                      expect with large                       *
  *                      stuckQueryDetectionInterval values      *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  When using stuckQueryAverageInterval  with
  stuckQueryDetectionInterval when the
  detection interval is longer, it take longer to switch out of
  stuck mode.   By using the stuckQueryInterval as a base for
  gathering the stuck duration times when
  stuckQueryDetectionInterval
  > stuckQueryInterval,  this will allow the average to continue
  to be calculated during the longer times.
  

Problem conclusion

• The function was changed to use the stuckQueryInterval as a
  base
  for
  gathering the stuck duration times when
  stuckQueryDetectionInterval
  > stuckQueryInterval.  This will allow the average to continue
  to be calculated every interval which can provide a faster
  return from stuck mode to normal mode.
  
  The fix for this APAR is targeted for inclusion in fix pack
  9.0.5.18. 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