IT40001: Insufficient checking of queue manager name collision when defining an HA QM on the IBM MQ Appliance

APAR status

• Closed as program error.

Error description

• Defining a high availability (HA) queue manager name with
  certain special characters on the IBM MQ Appliance can cause a
  conflict if there is already a standalone queue manager with a
  similar name on the other appliance in the HA group.
  
  In this scenario the crtmqm -sx command will fail, however the
  existing queue manager's data directory on the partner appliance
  will be damaged, potentially resulting in data loss of
  persistent message data.
  
  The damaged queue manager cannot be removed.
  

Local fix

Problem summary

• ****************************************************************
  USERS AFFECTED:
  Users creating Queue Managers on an IBM MQ Appliance in a HA
  group.
  
  
  Platforms affected:
  MultiPlatform
  
  ****************************************************************
  PROBLEM DESCRIPTION:
  Defining a high availability (HA) queue manager name with
  certain special characters on the IBM MQ Appliance can cause a
  conflict if there is already a standalone queue manager with a
  similar name on the other appliance in the HA group
  

Problem conclusion

• The queue managers now negotiate a mutually agreeable name.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version    Maintenance Level
  v9.2 LTS   9.2.0.6
  v9.x CD    9.3.0
  
  The latest available maintenance can be obtained from
  'WebSphere MQ Recommended Fixes'
  http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006037
  
  If the maintenance level is not yet available information on
  its planned availability can be found in 'WebSphere MQ
  Planned Maintenance Release Dates'
  http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006309
  ---------------------------------------------------------------
  

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:

Fix information

• Fixed component name

  MQ APPL M2002 V

• Fixed component ID

  5737H4701

Applicable component levels