IBM Support

IT16009: ADDITIONAL UNEXPECTED ERRORS CAUSED BY CORRUPTED MODEL QUEUE FILES ON DISK

Subscribe

You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • An FFDC is reported with Probe Id AQ130120 reporting a
    damaged object.
    
    The following can be seen in the FFDC file:
    
    Operating System  :- SunOS 5.10
    PIDS              :- 5724H7223
    LVLS              :- 7.5.0.3
    Product Long Name :- WebSphere MQ for Solaris (SPARC platform)
    Probe Id          :- AQ130120
    Application Name  :- MQM
    Component         :- aqqValidateQHeader
    Program Name      :- amqzlaa0
    Addressing mode   :- 64-bit
    Major Errorcode   :- arcE_OBJECT_DAMAGED
    Minor Errorcode   :- OK
    Probe Type        :- INCORROUT
    Probe Severity    :- 2
    Probe Description :- AMQ6125: An internal WebSphere MQ error
    has ccurred.
    FDCSequenceNumber :- 0
    
    MQM Function Stack
    zlaMainThread
    zlaProcessMessage
    zlaProcessMQIRequest
    zlaMQOPEN
    zsqMQOPEN
    kpiMQOPEN
    kqiOpenIt
    kqiOpenQueue
    kqiOpenModel
    apiCreateDynamicQueue
    aocCreateDynamicQueue
    aocPerformCreation
    aodCreate
    aqmReuseQueue
    aqmAccessQueue
    aqqAccessQueue
    aqqAccessQHeader
    aqqValidateQHeader
    xcsFFST
    
    Probe IDs AO074001, AO074003, and KN090002 may also be seen from
    the amqzlaa0 process.
    

Local fix

  • 1. Delete the damaged model queue in runmqsc.
    2. Stop the queue manager.
    3. Recreate the system objects (strmqm -c).
    4. Start the queue manager.
    

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    Users of MQ where one or more model queue files have become
    corrupted. This is usually due to a failed user operation, such
    as a backup or restore of the queue files.
    
    
    Platforms affected:
    MultiPlatform
    
    ****************************************************************
    PROBLEM DESCRIPTION:
    If a model queue  file had become corrupted on the disk,
    omissions in the error handling logic could lead to MQ partially
    initializing the internal queue object. If encountered, this
    partially initialized object caused the FDC records to be
    produced.
    

Problem conclusion

  • The code has been improved to better handle these error
    conditions if the model queue file has become corrupted.
    
    Damaged model queues should be recreated by the user. If the
    damaged queues are system model queues, users can run strmqm
    with the -c option to regenerate system objects.
    
    ---------------------------------------------------------------
    The fix is targeted for delivery in the following PTFs:
    
    Version    Maintenance Level
    v7.5       7.5.0.5
    v8.0       8.0.0.2
    
    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 number

    IT16009

  • Reported component name

    WMQ BASE MULTIP

  • Reported component ID

    5724H7241

  • Reported release

    750

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2016-07-06

  • Closed date

    2016-12-08

  • Last modified date

    2017-03-10

  • 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

[{"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSCPQ63","label":"APAR \/ Maintenance"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Line of Business":{"code":"","label":""}}]

Document Information

Modified date:
27 April 2020