IT02684: DATA MISSING FROM WMQ V7.5 .NET APPLICATION TRACE WHEN TRACING IS REPEATEDLY STOPPED AND STARTED WHILE APPLICATION IS RUNNING

Fix Pack 8.0.0.1 for WebSphere MQ V8.0

APAR status

• Closed as program error.

Error description

• An application running WebSphere MQ v7.5 (WMQ) .NET with
  tracing enabled does not capture the comms data when tracing
  is stopped and restarted repeatedly using a script. The
  comms data is missing from the trace files. This can happen
  in managed or unmanaged mode.
  
  
  Additional Symptom(s) Search Keyword(s):
  

Local fix

Problem summary

• ****************************************************************
  USERS AFFECTED:
  Users of WebSphere MQ .Net interfaces.
  
  
  Platforms affected:
  Windows
  
  ****************************************************************
  PROBLEM DESCRIPTION:
  MQ .Net classes initialised trace such that trace status changes
  such as trace start, stop could be missed.
  In some cases, trace entry was skipped but not trace exit
  resulting in a crash when trace was turned off.
  

Problem conclusion

• The .Net classes were modified to track trace status
  dynamically.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version    Maintenance Level
  v7.5       7.5.0.5
  v8.0       8.0.0.1
  
  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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