IT20437: Pub/sub queue managers migrated from MQ v6 to any later version of MQ retain open handles on XMITQ

APAR status

• Closed as program error.

Error description

• Due to a defect in the code when Pub/Sub Queue managers migrated
  from MQ V6 broker to any later versions of MQ, the
  pub/sub process(amqfcxba) maintains an open handle on the
  inter-broker communication transmission queue
  

Local fix

Problem summary

• ****************************************************************
  USERS AFFECTED:
  Users who use MQ pub/sub brokers that were migrated from MQ V6
  to any later versions queue manager.
  
  
  Platforms affected:
  MultiPlatform
  
  ****************************************************************
  PROBLEM DESCRIPTION:
  A logic omission meant that the after a queue manager broker
  process put a message to the transmission queue for inter broker
  communication in a pub/sub hierarchy, it failed to close the
  queue handle after the message was put. This caused failure if
  an attempt was made to remove the transmission queue.
  

Problem conclusion

• The MQ queue manager code has been modified such that the queue
  manager broker process closes any unused queue handle from the
  cache.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version    Maintenance Level
  v8.0       8.0.0.8
  v9.0 CD    9.0.4
  v9.0 LTS   9.0.0.2
  
  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

  WMQ BASE MULTIP

• Fixed component ID

  5724H7251

Applicable component levels

• R800 PSY

     UP