PH61914: QLOAD SHOULD TOLERATE MESSAGES BEING DELETED WHILE FILTERING

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• QLOAD allows messages to be filtered and destructively got
  from a queue. That queue is opened with MQOO_INPUT_SHARED.
  The browse cursor is used when filtering, messages are browsed
  from the queue, compared to the filter, and then destructively
  got via the browse cursor. If something else is also consuming
  messages from the queue, then its possible the message under
  the browse cursor is no longer there, resulting in a
  MQRC_NO_MSG_UNDER_CURSOR which will result in QLOAD returning
  early.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of IBM MQ for z/OS Version 9       *
  *                 Release 3 Modification 0, and                *
  *                 Release 4 Modification 0.                    *
  ****************************************************************
  * PROBLEM DESCRIPTION: QLOAD terminates when it encounters     *
  *                      MQRC_NO_MSG_UNDER_CURSOR during         *
  *                      filtering.                              *
  ****************************************************************
  When running QLOAD with destructive get (-I) alongside other
  applications getting messages from a queue, there is a timing
  window where a message would be removed from the queue at
  the same time that QLOAD is filtering it, resulting in QLOAD
  encountering MQRC_NO_MSG_UNDER_CURSOR and terminating.
  

Problem conclusion

• QLOAD has been corrected to handle MQRC_NO_MSG_UNDER_CURSOR
  without terminating.
  

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:

  UI98810 UI98811

Modules/Macros

• CMQUDFNC
  

Fix information

• Fixed component name

  IBM MQ Z/OS V9

• Fixed component ID

  5655MQ900

Applicable component levels

• R300 PSY UI98811

     UP24/11/16 P F411

• R400 PSY UI98810

     UP24/11/16 P F411

Fix is available

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