PI63473: WMQ V7.1 - QUEUE SERVICE INTERVAL HIGH EVENTS ARE NOT GENERATEDAS EXPECTED.

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Queue Service Interval High Events are not generated as
  expected. A queue is defined with QSVCIEV(HIGH) and
  QSVCINT(120000).
  On z/OS it seems that every PUT resets the queue service
  interval and a trigger is only generated if no message is
  put within 2 minutes (either by next PUT or GET).
  

Local fix

• n/a
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of WebSphere MQ for z/OS Version 7 *
  *                 Release 1 Modification 0.                    *
  ****************************************************************
  * PROBLEM DESCRIPTION: When using queue service interval       *
  *                      events, a QSVCIEV(HIGH) message for a   *
  *                      given queue may not be generated when   *
  *                      it should be if applications continue   *
  *                      to put new messages to the queue.       *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  The internal queue service interval timer is reset for each
  message put to a queue, whereas the timer should only be reset
  for the first message put to an empty queue. In resetting the
  timer for each put, queue service interval event messages are
  not generated when they should be.
  

Problem conclusion

• Processing has been amended to ensure that the internal timer is
  only reset when putting the first message to an empty queue.
  100Y
  CSQMIAPM
  

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:

  UI39084

Modules/Macros

• CSQMIAPM
  

Fix information

• Fixed component name

  WMQ Z/OS V7

• Fixed component ID

  5655R3600

Applicable component levels

• R100 PSY UI39084

     UP16/07/28 P F607

Fix is available

• Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.