IC98406: WMQ 7.0.1 MESSAGES WITH USER PROPERTIES SENT OVER A CHANNEL ARRIVE WITH THE MQMDE / MQRFH2 IN THE WRONG ORDER.

Fix Pack 7.1.0.5 for WebSphere MQ V7.1
WebSphere MQ V7.5 Fix Pack 7.5.0.4

APAR status

• Closed as program error.

Error description

• An application running builds a group message
  (using GROUPID ) with an MQRFH2 header. The message is sent
  to a remote queue manager. When the message is received on
  the remote queue manager the message group is lost, because
  the sequence of the MQ
  headers are in the wrong order when built on the transmission
  queue of the sending queue manager.
  The remote queue manager receives the sequence :
  XQH + RFH2 + MQMDE + message body
  instead of
  XQH + MQMDE + RFH2 + message body
  .
  

Local fix

Problem summary

• ****************************************************************
  USERS AFFECTED:
  All users making use of MQMD fields not present in MQMD
  version 1 sending a message containing an RFH2 to a remote queue
  manager.
  
  
  Platforms affected:
  MultiPlatform
  
  ****************************************************************
  PROBLEM SUMMARY:
  When a message is placed on to a transmission queue, its headers
  are rebuilt in order to prepend an MQXQH header to the header
  chain. The MQXQH always contains a version 1 MQMD, so any data
  specified in MQMD 2 or greater fields are appended as an MQMDE.
  
  The code which exists to insert an RFH2 at the end of the header
  chain did not recognise the MQMDE header, and so the RFH2 header
  was added ahead of the MQMDE thinking the MQMDE was message
  body.
  

Problem conclusion

• The RHF2 insertion code has been modified to recognise the MQMDE
  header, ensuring that the RHF2 header is always added after
  the MQMDE, not before.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version    Maintenance Level
  v7.0       7.0.1.13
  v7.1       7.1.0.5
  v7.5       7.5.0.4
  
  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:

  PI10011

Fix information

• Fixed component name

  WMQ WINDOWS V7

• Fixed component ID

  5724H7220

Applicable component levels

• R701 PSY

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