IC87766: FORCED REBOOT OF HOST CAUSED A "DAMAGED OBJECT" ERROR (ARCE_OBJECT_DAMAGED)

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • Using WebSphere MQ queue managers on a host that is heavily
    loaded with other applications and with many memory demands.
    Sometimes the node becomes unresponsive and a monitor tool
    forces the reboot of the host. Most of the time the queue
    managers are not affected and they restart fine after the
    reboot. But one time, a queue manager failed to start and
    generated the following FDC:
    
    | Probe Id :- AO000001
    | Component :- apiStartup
    | Major Errorcode :- xecF_E_UNEXPECTED_RC
    | Minor Errorcode :- arcE_OBJECT_DAMAGED
    
    Notice in the FDC that the function that detected the error is
    one that loads the "Object Catalogue":
    
    } aocLoadCatalogue rc=MQRC_OBJECT_DAMAGED
    { xcsFFST
    
    The Object Catalogue became truncated during this forced reboot.
    
    The startup of the queue manager is coded to automatically
    recover (without reporting an FDC) from an object catalogue in
    such a state, but only if the queue manager has "media
    recovery", that is, only if it is using linear logging.
    

Local fix

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    Users may be impacted by this problem if the queue manager
    ends abnormally, i.e. other than via endmqm. The damaged
    object catalogue may be unrecoverable for circular logging queue
    managers.
    
    
    Platforms affected:
    MultiPlatform
    
    ****************************************************************
    PROBLEM SUMMARY:
    An update to a queue manager's object catalogue can lead to an
    inconsistent state if it coincides with an abnormal
    termination of the queue manager process performing the update.
    

Problem conclusion

  • An environment variable, AMQ_FORCE_OBJ_CAT is now provided. That
    should be set prior to issuing strmqm, and will ensure that
    all object catalogue updates are forced. Note that there may
    well be performance implications to use of that environment
    variable particularly for systems which frequently
    create/destroy dynamic queues and/or have slow disk systems.
    
    ---------------------------------------------------------------
    The fix is targeted for delivery in the following:
    
                       v7.0
    Platform           Fix Pack 7.0.1.11
    --------           --------------------
    Windows            7.0.1.11
    AIX                7.0.1.11
    HP-UX (PA-RISC)    7.0.1.11
    HP-UX (Itanium)    7.0.1.11
    Solaris (SPARC)    7.0.1.11
    Solaris (x86-64)   7.0.1.11
    iSeries            7.0.1.11
    Linux (x86)        7.0.1.11
    Linux (x86-64)     7.0.1.11
    Linux (zSeries)    7.0.1.11
    Linux (Power)      7.0.1.11
    
                       v7.1
    Platform           Fix Pack 7.1.0.4
    --------           --------------------
    Windows            7.1.0.4
    AIX                7.1.0.4
    HP-UX (Itanium)    7.1.0.4
    Solaris (SPARC)    7.1.0.4
    Solaris (x86-64)   7.1.0.4
    iSeries            7.1.0.4
    Linux (x86)        7.1.0.4
    Linux (x86-64)     7.1.0.4
    Linux (zSeries)    7.1.0.4
    Linux (Power)      7.1.0.4
    
    Version            v7.5
    --------           --------------------
    Fix available in:  7.5.0.2
    
    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

    IC87766

  • Reported component name

    WMQ BASE MULTIP

  • Reported component ID

    5724H7241

  • Reported release

    750

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-11-01

  • Closed date

    2013-03-14

  • Last modified date

    2013-08-14

  • 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

       UP



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Document information


More support for:

WebSphere MQ
APAR / Maintenance

Software version:

7.5

Reference #:

IC87766

Modified date:

2013-08-14

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