PI67200: WMQ CLUSRCVR CHANNEL WITH CHLAUTH DOES NOT USE MCAUSER ID

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Messages arriving over a cluster receiver channel are put to
  the dead letter queue with an MQRC 2035 as the USER ID used to
  check authorization is defaulting to the CHIN task authority
  instead of to the MCAUSER ID which was mapped by CHLAUTH rule.
  Change Team finds that the CHLAUTH rule is matched as
  pStatus.MCAUser is set based on the rule however,
  CD.MCAUserIdentifier is blank. This results in MQPUT being
  issued using the CHIN userid. The issue in rriCheckChlAuth
  is that MCAUserIdentifier is not updated in the status entry.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of WebSphere MQ for z/OS Version 8 *
  *                 Release 0 Modification 0.                    *
  ****************************************************************
  * PROBLEM DESCRIPTION: When using CHLAUTH QMGRMAP              *
  *                      authentication records to set MCAUSERID *
  *                      to receiver channels, incoming          *
  *                      messages are put to dead letter queue   *
  *                      with MQRC 2035 MQRC_NOT_AUTHORIZED.     *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  DISPLAY CHSTATUS shows that the correct MCA userID has been set
  to the channel but messages are discarded to dead letter queue.
  The channel definition control blocks have two fields to set the
  MCA userId: MCAUserID and MCAUserIdentifier. The CHLAUTH MCAUser
  is only copied to MCAUserID and MCAUserIdentifier is left blanks
  resulting in messages put to dead letter queue with MQRC 2035
  MQRC_NOT_AUTHORIZED.
  

Problem conclusion

• CMQXRMSA (rriCheckChlAuth) has been changed to copy MCAUser to
  MCAUserID and MCAUserIdentifier in the channel definition
  control blocks.
  000Y
  CMQXRMSA
  

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:

  PI68196 UI40650

Modules/Macros

• CMQXRMSA
  

Fix information

• Fixed component name

  WMQ Z/OS 8

• Fixed component ID

  5655W9700

Applicable component levels

• R000 PSY UI40650

     UP16/09/20 P F609

Fix is available

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