PH41430: AFTER SERVICE INTERVAL EVENT OCCURS (E.G. OK TO HIGH) BOTH QUEUEDEPTH HIGH AND QUEUE FULL EVENTS ARE FLAGGED AS DISABLED

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• With MQ performance events enabled along with QSVCINT, if
  messages are PUT to a queue, QDPHIEV, and QDPMAXEV become
  DISABLED even if their thresholds have not been met. MQ
  Development finds that changes made in APAR PI54598
  reorganized some of the code in CSQMIAPM. This introduced a
  code path where the flags which control queue depth events are
  all turned off. The code path where this occurs is when
  generating a Queue Service Interval High event for private
  queues. This APAR will align MQ behavior to the documented
  design.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of IBM MQ for z/OS Version 9       *
  *                 Release 1 Modification 0, Release 2          *
  *                 Modification 0 and Release 3 Modification 0. *
  ****************************************************************
  * PROBLEM DESCRIPTION: When using performance events it's      *
  *                      possible for service interval events    *
  *                      to incorrectly enable or disable queue  *
  *                      depth events.                           *
  ****************************************************************
  The code that sets the queue depth event flags incorrectly
  checked a flag that is set for both queue depth events and
  service interval events. This resulted in the queue depth
  events being enabled or disabled as a result of service
  interval events.
  

Problem conclusion

• The code has been changed to prevent service interval events
  enabling or disabling queue depth events.
  

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:

  UI81601 UI81602 UI81603

Modules/Macros

• CSQMIAGM CSQMIAPM
  

Fix information

• Fixed component name

  IBM MQ Z/OS V9

• Fixed component ID

  5655MQ900

Applicable component levels

• R100 PSY UI81603

     UP22/08/03 P F208

• R200 PSY UI81602

     UP22/08/03 P F208

• R300 PSY UI81601

     UP22/08/03 P F208

Fix is available

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