PM65083: WMQ V7.1.0: REFRESH CLUSTER ON A FULL REPOSITORY CAUSES INCORRECT FLAGGED INTERNAL SUBSCRIPTIONS FOR PARTIALREPOS

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• WebSphere MQ V6 or V7 queues become "missing" from clusters.
  
  Application calls to MQOPEN (sometimes MQPUT1, MQPUT) suffer
  queue name lookup errors (Examples: 2085, 2082) when they try to
  access the affected cluster queues.
  

Local fix

• Do not issue a REFRESH CLUSTER against a full repository queue
  manager.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of WebSphere MQ for z/OS Version 7 *
  *                 Release 1 Modification 0                     *
  ****************************************************************
  * PROBLEM DESCRIPTION: Message CSQX456I issued for a cluster   *
  *                      queue which has no subscriptions. Also  *
  *                      CSQX053E issued indicating an FFST      *
  *                      for the missing subscription.           *
  *                      The cluster queue indicated may         *
  *                      disappear unexpectedly.                 *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  When a full repository is demoted to a partial it requests that
  any partial repositories in the cluster remake their
  subscriptions to another full repository. However it remakes the
  subscription with the REFRESH bit off, regardless of whether
  existing subscriptions had the REFRESH bit on. This can result
  in the situation where the cluster queue has its REFRESH bit on,
  but its subscriptions have the REFRESH bit off.
  In time this new subscription will expire and not be remade,
  even though the queue might be in constant use. When this
  happens the CSQX456I message and an FFST will be issued to
  indicate the missing subscription.
  

Problem conclusion

• rrmRemakeSub will now initialise the new subscription with the
  correct values.
  100Y
  CMQXRMNT
  CSQXRRMF
  

Temporary fix

Comments

APAR Information

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

  PM62817

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

  010PC2Ÿ UK80227

Modules/Macros

• CMQXRMNT CSQXRRMF
  

Fix information

• Fixed component name

  WMQ Z/OS V7

• Fixed component ID

  5655R3600

Applicable component levels

• R100 PSY UK80227

     UP12/07/26 P F207

Fix is available

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