PI08889: WEBSPHERE MQ Z/OS V7.1.0:CSQX470E AND CSQX036E WITH MQRC 2042 WHEN THE STRUCTURE HOSTING THE XMITQ IS RECOVERED

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• When the structure was recovered from a CF failure, the channel
  was failing with CSQX470E, and the below message could be found
  in the MQ CHIN joblog:
  AUG,18
  22:11:51  +CSQX036E !CSQ1 CSQXRCTL Unable to open
  22:11:51   QUEUE(TEST.XMITQ),
  22:11:51   MQCC=2 MQRC=2042 (MQRC_OBJECT_IN_USE)
  22:11:51  +CSQX599E !CSQ1 CSQXRCTL Channel TEST.TO.CSQ2 ended
  abnormally
  AUG,19
  06:35:22  +CSQX470E !CSQ1 CSQXRCTL Channel TEST.TO.CSQ2 has the
  wrong disposition
  06:35:22  +CSQX599E !CSQ1 CSQXRCTL Channel TEST.TO.CSQ2 ended
  abnormally
  
  
  Additional Symptom(s) Search Keyword(s):
  MQRC_OBJECT_IN_USE
  

Local fix

• n/a.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of WebSphere MQ for z/OS Version 7 *
  *                 Release 1 Modification 0.                    *
  ****************************************************************
  * PROBLEM DESCRIPTION: The channel initiator issues message    *
  *                      CSQX470E repeatedly for a shared        *
  *                      channel after a CF structure failure.   *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  When the channel was first started by a trigger message,
  riiTriggerMessage is invoked, and calls rriQueryChannelDisp to
  determine the channel disposition. The latter fails to open the
  shared transmit queue due to MQRC 2373 (MQRC_CF_STRUC_FAILED),
  however riiTriggerMessage does not check the return code and
  continues processing, adding a non-shared local status entry.
  This entry is used for retry processing, and when the CF
  structure is recovered, allowing the transmit queue to be opened
  again, channel start fails due to the channel having the wrong
  disposition, and message CSQX470E is issued.
  

Problem conclusion

• The code was changed to correctly determine the channel
  disposition even if the CF structure has failed, allowing the
  channel to start correctly once the CF structure is recovered.
  100Y
  CSQXRCDF
  CSQXRCSI
  

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:

  UI14914

Modules/Macros

• CSQXRCDF CSQXRCSI
  

Fix information

• Fixed component name

  WMQ Z/OS V7

• Fixed component ID

  5655R3600

Applicable component levels

• R100 PSY UI14914

     UP14/03/04 P F403

Fix is available

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