PI41014: WMQ V710 IGQ AGENT DOESN'T PUT MESSAGES TO THE DEAD LETTER QUEUE WHEN TARGET QUEUE HAS DEFPRESP(ASYNC)

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• WMQ V710 Intra-group queueing agent  doesn't put messages to
  the dead letter queue when target is FULL (MQRC_Q_FULL) 2053
  and when target queue has attribute DEFPRESP(ASYNC).
  

Local fix

• Use a DEFPRESP attribute value SYNC on the target queue.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of WebSphere MQ Version 7          *
  *                 Release 1 Modification 0.                    *
  ****************************************************************
  * PROBLEM DESCRIPTION: When a local queue has attribute        *
  *                      DEFPRESP(ASYNC) and it is receiving     *
  *                      messages via the intra-group queuing    *
  *                      (IGQ) agent and if any MQPUT to the     *
  *                      target queue fails (for example queue   *
  *                      full) the messages are not put in DLQ.  *
  *                                                              *
  *                      Message CSQM065E indicating that MQCMIT *
  *                      has failed with reason code MQRC 2003   *
  *                      (MQRC_BACKED_OUT) is repeated at        *
  *                      regular intervals.                      *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  When the IGQ agent (CSQMIGQA) is putting messages to a target
  queue that has the attribute DEFPRESP(ASYNC), the IGQ agent
  receives a successful reason code after every MQPUT even after a
  put failure has been detected, for example queue full, and the
  IGQ agent does not attempt to put messages to the DLQ. When a
  batch of messages is complete, IGQ issues a MQCMIT that fails
  with MQRC_BACKED_OUT (2003) that causes the agent to go in retry
  mode waiting for the MQCMIT to succeed after the queue full
  condition has been resolved.
  

Problem conclusion

• IGQ agent has been updated to always request synchronous put
  responses (MQPMO_SYNC_RESPONSE) when putting messages to
  target queues or to the DLQ.
  100Y
  CSQMIGQA
  CSQMPTDQ
  

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:

  PI41028 UI27765

Modules/Macros

• CSQMIGQA CSQMPTDQ
  

Fix information

• Fixed component name

  WMQ Z/OS V7

• Fixed component ID

  5655R3600

Applicable component levels

• R100 PSY UI27765

     UP15/06/03 P F506

Fix is available

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