PH08756: CSQM099I ... NAME IN USE AS A DIFFERENT TYPE CSQM090E FAILURE REASON CODE X'00D44001'

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Client had problems with CF while was running a MQ workload that
  creates dynamic shared queues, puts messages, get messages and
  then deletes the dynamic queues.
  
  After that some of these queues got in inconsistent state and
  this is preventing them from being deleted.
  
  CSQM099I CSQMUQLC QLOCAL(XXXXXXX) NAME IN USE AS A DIFFERENT
  TYPE
  CSQM090E CSQMUQLC FAILURE REASON CODE X'00D44001'
  CSQ9023E CSQMUQLC ' DELETE QLOCAL' ABNORMAL COMPLETION
  
  The inconsistent state occurs if the creation of a shared
  dynamic queue fails before the queue definition is written to
  the CF, and the queue cannot be immediately deleted (for
  example, if another task is already trying to open it).
  The fQLogicDel is hardened to mark the queue as deleted, and
  this is written to DB2 and the delete is scheduled to be
  retried - however this fails because the queue does not have a
  valid sqtoken (and cannot acquire one due to being marked
  deleted).
  
  When the queue manager is restarted, no IVSA is created for the
  queue due to the fQLogicDel flag, and subsequent attempts to
  delete the queue will fail, again due to the fQLogicDel flag
  being set.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of IBM MQ for z/OS Version 9       *
  *                 Release 1 Modification 0.                    *
  ****************************************************************
  * PROBLEM DESCRIPTION: Shared queues left in a part-deleted    *
  *                      state cannot be opened or deleted.      *
  *                      Symptoms include:                       *
  *                      - MQRC_NAME_IN_USE (MQRC2201) when      *
  *                        attempting to open the queue          *
  *                      - "CSQM099I Name in use as different    *
  *                        type" is issued when attempting       *
  *                        to delete the queue                   *
  *                      - the queue is not found by display     *
  *                        processing                            *
  ****************************************************************
  When a shared queue is either being logically deleted, or is in
  the process of being deleted, and this process is interrupted
  by, for example, structure or application failure, the queue can
  be left partially deleted according to the DB2 entry for the
  queue.
  While in this state, the queue cannot be accessed, either to
  open or delete the queue.
  

Problem conclusion

• Scavenger processing is changed to handle logically deleted
  shared queues that were not written to the application structure
  
  Structure recovery processing is changed to process partially
  deleted queues, allowing existing reconciliation processing to
  complete the deletion.
  

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:

  UI69047

Modules/Macros

• CSQECLOS CSQERCF2 CSQERCF3 CSQISCO2
  

Fix information

• Fixed component name

  IBM MQ Z/OS V9

• Fixed component ID

  5655MQ900

Applicable component levels

• R100 PSY UI70262

     UP20/08/11 P F008

Fix is available

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