IBM Support

IT33352: Additional version checks on internal logger data structures

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APAR status

  • Closed as program error.

Error description

  • The APAR adds additional eyecatcher and version checks on MQ
    data structures to ensure that they are consistent with the
    current version and correct eyecatcher before the logs are used.
    

Local fix

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    Users starting queue manager after reverting back MQ from higher
    MQ version to lower MQ version or with corrupted log records
    
    
    Platforms affected:
    MultiPlatform
    
    ****************************************************************
    PROBLEM DESCRIPTION:
    It is unsupported to start a queue manager using transactional
    log files created or modified by a newer product version. In
    this scenario, or when the log files have been corrupted,
    additional validity checks were identified that allow for the
    generation of more appropriate error messages.
    

Problem conclusion

  • MQ code has been modified such that it generates a more
    meaningful error message if the queue manager is being
    incorrectly started using an older product version, and also
    when the log records are corrupted.
    
    ---------------------------------------------------------------
    The fix is targeted for delivery in the following PTFs:
    
    Version    Maintenance Level
    v9.0 LTS   9.0.0.11
    v9.1 LTS   9.1.0.7
    v9.x CD    9.2.2
    
    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

    IT33352

  • Reported component name

    IBM MQ BASE M/P

  • Reported component ID

    5724H7261

  • Reported release

    900

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2020-06-29

  • Closed date

    2020-11-10

  • Last modified date

    2020-11-10

  • 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

    IBM MQ BASE M/P

  • Fixed component ID

    5724H7261

Applicable component levels

[{"Line of Business":{"code":"LOB36","label":"IBM Automation"},"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSYHRD","label":"IBM MQ"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"9.0"}]

Document Information

Modified date:
11 November 2020