IC87046: API EXIT IS INVOKED WITH THE ENVIRONMENT FIELD SET TOMQXE_OTHER INSTEAD OF MQXE_MCA

WebSphere MQ V7.5 Fix Pack 7.5.0.1

APAR status

• Closed as program error.

Error description

• The customer has coded an API exit and as part of it's
  processing it checks the MQAXC Environment field to determine
  whether it needs to do anything with the message. They are only
  interested in messages that have resulted from MQ API calls
  made by applications (as opposed to those made by an internal
  queue manager process). They find that when they send a
  number of messages from a remote queue manager only half of them
  are processed by the exit. Further investigation has revealed
  that for the messages that get processed, the API exit has been
  invoked with the Environment field set to MQXE_MCA, as expected.
  For those that don't get processed, the API exit is invoked with
  this same field set to MQXE_OTHER. This is incorrect.
  

Local fix

Problem summary

• ****************************************************************
  USERS AFFECTED:
  All users of WebSphere MQ for MultiPlatforms Version 7.5.0 using
  a dual unit of work channel and APAI exits, where those exits
  interrogate the environment field.
  
  
  Platforms affected:
  MultiPlatform
  
  ****************************************************************
  PROBLEM SUMMARY:
  There was a missing setting for the API exit environment field
  for the second thread of a dual unit of work channel.
  

Problem conclusion

• Code change ensures that the API exit environment is set to
  MQXE_MCA for the second thread of a dual unit of work channel.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Platform           v7.5
  --------           --------------------
  Multiplatforms     7.5.0.1
  
  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

  5724H7241

Applicable component levels

• R750 PSY

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