PI92602: MQ V9: Name of subscription is lost after qmgr restart

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• After qmgr restart, subscriptions have an empty sub name.
  Before the restart DIS SUB DETAILS shows
  
  SUB(TEST1)
  SUBID(123456789123456789123456789123456789123456789123)
  ......
  afterwards the same display command shows
  SUB()
  SUBID(123456789123456789123456789123456789123456789123)
  ......
  
  The problem can be seen, when an existing subscription is
  altered, and only the subid is used by the alter command to
  identify the subscription.
  

Local fix

• Use not only the SUBID to identify a subscription, when using
  an ALTER to change a subscription.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of IBM MQ for z/OS Version 9       *
  *                 Release 0 Modification 0.                    *
  ****************************************************************
  * PROBLEM DESCRIPTION: After restarting the queue manager,     *
  *                      durable subscriptions no longer         *
  *                      contain a value for the SUB parameter   *
  *                      i.e. the subscription name.             *
  ****************************************************************
  When a durable subscription is defined or altered, the changes
  are persisted to SYSTEM.DURABLE.SUBSCRIPTION.QUEUE so that the
  subscription can be recreated after the queue manager is
  restarted.
  If the ALTER SUB command did not specify a value for the SUB
  parameter, and used only the SUBID parameter to identify the
  subscription, an error in processing the parameters causes the
  subscription name to be incorrectly cleared in the persisted
  record for the subscription, causing the subscription name to be
  lost when the queue manager is next restarted.
  

Problem conclusion

• CSQMCNSB is changed to correctly detect when only the SUBID
  parameter is used to identify the subscription being altered,
  so that the existing subscription name is correctly retained.
  

Temporary fix

Comments

APAR Information

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

  PI91588

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

  010PC2Ÿ UI53536 010PC2Ÿ 010PC2Ÿ

Modules/Macros

• CSQMCNSB
  

Fix information

• Fixed component name

  IBM MQ Z/OS V9

• Fixed component ID

  5655MQ900

Applicable component levels

• R000 PSY UI53536

     UP18/03/14 P F803

Fix is available

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