PI17136: WMQ Z/OS: CSQX036E CSQXPING UNABLE TO OPEN NAMELIST MQCC=2 MQRC=2085

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• You do a PING CHANNEL command from a z/OS queue manager to a
  full repository on a distributed queue manager. The PING is for
  a CLUSSDR associated with a single cluster, but the target full
  repository uses a  CLUSNL on its CLUSRCVR. The namelist
  definition does not exist on the z/OS queue manager.
  
  The result is:
  CSQX036E CSQXPING Unable to open
    NAMELIST(<namelist>),
    MQCC=2 MQRC=2085 (MQRC_UNKNOWN_OBJECT_NAME)
  CSQ9023E CSQXCRPS ' PING CHANNEL' ABNORMAL COMPLETION
  
  The channel can start and communicate with the full repository,
  so the operation of the cluster is unaffected. It is only the
  MQ PING command that fails. The PING works if the target is a
  z/OS queue manager.
  
  It would help if the CSQX036E message listed the channel that
  the failure was for.
  
  
  Additional Symptom(s) Search Keyword(s):
  2085 MQRC2085 MQRC_UNKNOWN_OBJECT_NAME
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of WebSphere MQ for z/OS Version 7 *
  *                 Release 1 Modification 0.                    *
  ****************************************************************
  * PROBLEM DESCRIPTION: When pinging a channel message CSQX036E *
  *                      is issued indicating that the ping was  *
  *                      unable to open a namelist.              *
  *                      MQCC=2 MQRC=2085                        *
  *                      (MQRC_UNKNOWN_OBJECT_NAME) is issued.   *
  *                      PING CHANNEL ends with abnormal         *
  *                      completion.                             *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  When pinging a channel rrxPingChannel calls rriInitSess
  which in turn calls rriInitExits. rriInitExits calls
  rriClusterFields to populate the pChannel->CD.ClusterPtr
  field.
  However if the ping is done to a distributed full repository
  whose receiver channel is defined with a namelist then
  rriClusterFields tries to open this namelist to query its
  contents. However there is no reason for this namelist to
  exist on the local z/OS queue manager and if it doesn't then
  a RC=2085 is returned and the ping fails.
  Note that when the ping is done to a z/OS full repository the
  ping appears to succeed, but in fact the pChannel->CD.ClusterPtr
  is not populated. This is because the z/OS full repository
  returns Private.Flags = 2 (namelist) but Private.Cluster is
  blank, so it doesn't satisfy any of the conditions and drops
  straight through the rriClusterFields code.
  

Problem conclusion

• rrxPingChannel has been changed so that a session block is
  created and the pClusterQmgr field is populated for use in
  rriClusterFields.
  100Y
  CSQXRCPG
  

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:

  IV60656 UI19246

Modules/Macros

• CSQXRCPG
  

Fix information

• Fixed component name

  WMQ Z/OS V7

• Fixed component ID

  5655R3600

Applicable component levels

• R100 PSY UI19246

     UP14/07/22 P F407

Fix is available

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