IBM Support

IT39045: MQ media image incorrect and cannot be used to restore a queue

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APAR status

  • Closed as program error.

Error description

  • A media image for a queue file contained inconsistent message
    linkage information, meaning it could not be used to recover
    that queue object from the log.  In the worst case, if this
    queue is later damaged and is also in a state meaning it must be
    recovered at queue manager start, then the queue manager does
    not start.
    

Local fix

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    All users of MQ 9.0.2 CD or later (including 9.1 LTS) queue
    managers with linear logging
    
    
    Platforms affected:
    MultiPlatform
    
    ****************************************************************
    PROBLEM DESCRIPTION:
    Starting the queue manager (strmqm) failed because the queue was
    damaged and the queue was also required to be accessed during
    queue manager startup (eg. it may have had inflight message
    operations that needed to be rolled back during startup), but
    the media image had incorrect internal linkage due to the defect
    being fixed here.
    

Problem conclusion

  • The problem is fixed by ensuring that the recorded media image
    (for a queue) contains the correct internal linkage detail.
    
    ---------------------------------------------------------------
    The fix is targeted for delivery in the following PTFs:
    
    Version    Maintenance Level
    v9.1 LTS   9.1.0.11
    v9.x CD    9.1.4
    
    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

    IT39045

  • Reported component name

    IBM MQ BASE MP

  • Reported component ID

    5724H7271

  • Reported release

    910

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    YesHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2021-11-11

  • Closed date

    2022-03-29

  • Last modified date

    2022-03-29

  • 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

    IBM MQ BASE MP

  • Fixed component ID

    5724H7271

Applicable component levels

[{"Line of Business":{"code":"LOB45","label":"Automation"},"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSYHRD","label":"IBM MQ"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"910"}]

Document Information

Modified date:
30 March 2022