IT16268: HRCE_LOG_FULL in hlgReserveLogSpace during endmqm causes corruption to the queue file

APAR status

• Closed as program error.

Error description

• Failure data capture (FDC) records reporting the following are
  seen after ending the qmgr:
    Probe Id          :- HL010004
    Component         :- hlgReserveLogSpace
    Program Name      :- amqzxma0
    Addressing mode   :- 64-bit
    Major Errorcode   :- hrcE_LOG_FULL
    Probe Description :- AMQ6709: The log for the queue
                          manager is full
  This causes corruption to the queue file and results in
  errors starting the queue manager.
  

Local fix

Problem summary

• ****************************************************************
  USERS AFFECTED:
  All users of IBM MQ
  
  
  Platforms affected:
  MultiPlatform
  
  ****************************************************************
  PROBLEM DESCRIPTION:
  A logic omission in the queue compaction routines meant that if
  the log became full while performing queue compaction, the
  incomplete current operation was not correctly backed out when
  handling the log full condition. This failure to roll back a
  partial operation could result in the queue file being left in
  an inconsistent state, which would prevent the queue file being
  read by the queue manager on restart.
  

Problem conclusion

• The queue manager's queue compaction logic has been modified to
  roll back partial operations in the event of a log full
  condition.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version    Maintenance Level
  v7.5       7.5.0.8
  v8.0       8.0.0.6
  v9.0 CD    9.0.2
  v9.0 LTS   9.0.0.1
  
  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