PH21133: CSQM1DCL ABEND0C4 - 4 PROCESSING EXITLIST

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• ABEND0C4 can occur when a z/OS queue manager is added to a
  cluster with a distributed MQ full repository, but the CLUSSDR
  and CLUSRCVR definitions on the z/OS queue manager specify an
  incorrect cluster name.  In that case, the z/OS queue manager
  creates an invalid cluster cache object, causing an ABEND0C4
  while processing a DISPLAY CLUSQMGR command. (MQ Development
  confirmed a similar error occurs if the full repository is a
  z/OS queue manager).
  

Local fix

• In Development testing, altering the incorrect channel
  definition to specify the correct cluster name prevented the
  abend
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of IBM MQ for z/OS Version 9       *
  *                 Release 1 Modification 0 and Release 2       *
  *                 Modification 0.                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: When defining a CLUSSDR channel to a    *
  *                      full repository, if the corresponding   *
  *                      CLUSRCVR channel exists but is for a    *
  *                      different repository to the one         *
  *                      specified in the CLUSTER parameter,     *
  *                      then an invalid cluster object will be  *
  *                      created.                                *
  *                                                              *
  *                      If a DISPLAY CLUSQMGR command is then   *
  *                      issued specifying the full repository   *
  *                      QMGR, then an ABEND0C4-04 in CSQM1DCL   *
  *                      may occur.                              *
  ****************************************************************
  When the connection to the full repository is initiated, the
  full repository detects the incorrect name defined in the
  CLUSTER parameter. It sends this information back to the remote
  QMGR, who tries to reconcile its local copy of the CLUSSDR
  channel. Due to an error in the code, residual data is
  accidentally copied into the new cluster object.
  
  Depending on the nature of this residual data, subsequent
  processing of this object may cause an ABEND0C4.
  

Problem conclusion

• A mismatch between the full repository name and the CLUSTER
  parameter will no longer create an invalid cluster object.
  

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:

  UI71691 UI72044

Modules/Macros

• CSQXRRMF
  

Fix information

• Fixed component name

  IBM MQ Z/OS V9

• Fixed component ID

  5655MQ900

Applicable component levels

• R100 PSY UI71691

     UP20/10/13 P F010

• R200 PSY UI72044

     UP21/01/04 P F012

Fix is available

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