PI52723: MQ V8 - EXPIRED MESSAGES NOT DELETED FROM A SHARED QUEUE.

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Expired messages are not being deleted from a shared queue if
  the MQGET is issued with message properties.
  
  There's no problems with local queues or if the MQGET is done
  without message properties.
  

Local fix

• n/a
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of WebSphere MQ for z/OS Version 8 *
  *                 Release 0 Modification 0.                    *
  ****************************************************************
  * PROBLEM DESCRIPTION: Expired messages on a shared queue are  *
  *                      not automatically removed from the      *
  *                      queue during MQGET processing when a    *
  *                      selector is used.                       *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  During an MQGET with a selector, messages on the queue are
  compared to the selector provided to see if they meet the
  criteria. However for a shared queue, in cases where they do not
  match, the processing to check for and expire a message is not
  entered. This results in the expired messages that are not
  matched, but still processed, remaining on the queue until the
  expiry processor task processes the queue or an MQGET which
  would have selected the message had it not expired is performed.
  This differs from the behaviour for expired messages on local
  queues, where these messages would be expired by the MQGET,
  including when they do not meet the selection criteria.
  

Problem conclusion

• MQGET processing with a selector on a shared queue has been
  changed to expire messages with an elapsed expiry time, even if
  the selector does not match. Only messages scanned prior to the
  MQGET returning will be expired.
  000Y
  CSQEMGEF
  CSQIEXP2
  

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:

  UI36999

Modules/Macros

• CSQEMGEF CSQIEXP2
  

Fix information

• Fixed component name

  WMQ Z/OS 8

• Fixed component ID

  5655W9700

Applicable component levels

• R000 PSY UI36999

     UP16/05/05 P F605

Fix is available

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