IT11221: MQ 7.0.1 QUEUE MANAGER FAILS TO START WITH PROBE ID HL048036 WHEN MIGRATED TO MQ 7.1 AND HIGHER MQ VERSIONS

APAR status

• Closed as program error.

Error description

• A WebSphere MQ queue manager which has been migrated from
  version 7.0.1.x to version 7.1 (or later version) fails to start
  after migration. A Failure Data Capture (FDC) file is generated
  with probe ID HL048036
  

Local fix

Problem summary

• ****************************************************************
  USERS AFFECTED:
  Users migrating a queue manager from MQ 7.0.1 to MQ 7.1 or
  higher MQ versions.
  
  
  Platforms affected:
  MultiPlatform
  
  ****************************************************************
  PROBLEM DESCRIPTION:
  This  issue occurred because of a difference  between MQ 7.0.1
  and later MQ versions
  in determining how to account for a partially used log page when
  calculating internal checksums.
  
  This difference could cause the log page integrity check
  routines to incorrectly detect valid log pages as invalid if the
  pages were partially used. If log pages were incorrectly
  detected as invalid, the queue manager failed to start.
  

Problem conclusion

• The MQ log page integrity check routines have been modified to
  correct these pages being incorrectly marked invalid.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version    Maintenance Level
  v7.1       7.1.0.8
  v7.5       7.5.0.7
  v8.0       8.0.0.5
  
  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

  WMQ WINDOWS V7

• Fixed component ID

  5724H7220

Applicable component levels

• R710 PSY

     UP