PI54959: ABEND 5C6-00C51053 IN CSQEOPEN+00002186 IN WMQ FOR Z/OS VER.8.0

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• WMQ for z/OS Ver.8.0 is issuing the following abend continously:
  
  
  CSQE137E CSQEOPEN DB2 AND CF STRUCTURE OUT OF SYNC  365
  FOR QUEUE xxx.xxxx.xxxxx.xxx, STRUCTURE NAME=zzzzzzzzz,
  STRUCTURE
  NUMBER=0001 LIST HEADER NUMBER=00E2
  IEA794I SVC DUMP HAS CAPTURED:  384
  DUMPID=202 REQUESTED BY JOB (ssidMSTR)
  DUMP TITLE=ssid,ABN=5C6-00C51053,U=SYSOPR  ,C=W9700.800.CFM -CS
             QEOPEN,M=CSQGFRCV,LOC=CSQELPLM.CSQEOPEN+00002186
  
  Running CSQ5PQSG VERIFY,QSG will result in the following
  error message being issued:
  
  CSQU688E Missing DB2 entry for list header list-header-number
           in structure struc-name
  
  
  Other symptoms of this problem can include:
  Open processing for shared queues looping, with trace showing
  CsqeRsnCodeSCBAlreadyExists being returned repeatedly by
  CSQEOPEN.
  

Local fix

• No Local Fix.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of WebSphere MQ for z/OS Version 8 *
  *                 Release 0 Modification 0.                    *
  ****************************************************************
  * PROBLEM DESCRIPTION: CSQE137E and abend 5C6-00C51053 in      *
  *                      CSQEOPEN occur when opening a newly     *
  *                      defined shared queue.                   *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  A shared queue was in the middle of being deleted on one queue
  manager in the QSG, and the definition of the queue stored in
  the CF was updated to indicate that the queue was deleted, but
  had not yet updated the definition held in DB2. At the same time
  an attempt to open the same queue on another queue manager in
  the queue sharing group took place. This open attempt
  incorrectly rewrote the queue definition to the CF based on the
  definition in DB2 (which was not yet marked deleted), causing
  the CF entry to no longer indicate that the queue was deleted.
  
  A new queue was defined and assigned the same list header as the
  deleted queue, and was opened. This open correctly detected that
  the CF contained the definition for a different queue that was
  not marked deleted and reported the inconsistency by issuing
  diagnostic abend 5C6-00C51053 and error message CSQE137E:
  "
  CSQE137E CSQEOPEN DB2 AND CF STRUCTURE OUT OF SYNC
  FOR QUEUE xxx.xxxx.xxxxx.xxx, STRUCTURE NAME=zzzzzzzzz,
  STRUCTURE NUMBER=aaaa LIST HEADER NUMBER=bbbb
  "
  

Problem conclusion

• CSQEOPEN has been changed to prevent the deleted flags being
  incorrectly reset in the CF definition for a queue being deleted
  000Y
  CSQEOPEN
  

Temporary fix

• *********
  * HIPER *
  *********
  

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

  UI34557

Modules/Macros

• CSQEOPEN
  

Fix information

• Fixed component name

  WMQ Z/OS 8

• Fixed component ID

  5655W9700

Applicable component levels

• R000 PSY UI34557

     UP16/02/03 P F602 ¢

Fix is available

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