IT32558: DEFCLXQ(CHANNEL) is not honored if the CLUSSDR has multiple hostnames in the CONNAME attribute

APAR status

• Closed as program error.

Error description

• User is using a comma separated CONNAME in a CLUSSDR channel and
  attempting to reconnect after changing DEFCLXQ to CHANNEL at the
  qmgr level. Displaying the channel status shows that it is still
  using SYSTEM.CLUSTER.TRANSMIT.QUEUE for the transmission queue.
  

Local fix

Problem summary

• ****************************************************************
  USERS AFFECTED:
  This issue affects users of cluster channel definitions with
  multiple values in the CONNAME field, who wish to use multiple
  cluster transmission queues.
  
  
  Platforms affected:
  MultiPlatform
  
  ****************************************************************
  PROBLEM DESCRIPTION:
  A logic error within the cluster channel logic meant that if a
  CLUSSDR channel failed to connect to the first entry specified
  in its CONNAME field and it retried using a different entry from
  the CONNAME field, then the internal metadata that controls the
  use of split cluster transmission queues was incorrectly
  discarded from the channel instance, reverting the channel
  instance to use the SYSTEM.CLUSTER.TRANSMIT.QUEUE.
  

Problem conclusion

• The IBM MQ channel clustering logic has been carried out to
  preserve the metadata which determines the cluster transmit
  queue configuration for the CLUSSDR channel configuration in
  this scenario.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version    Maintenance Level
  v9.1 LTS   9.1.0.11
  v9.2 LTS   9.2.0.5
  v9.x CD    9.2.5
  
  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

  IBM MQ BASE MP

• Fixed component ID

  5724H7271

Applicable component levels