IBM Support

IT36990: Queue manager not releasing media recovery log extents

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APAR status

  • Closed as program error.

Error description

  • A queue manager is configured with linear logging and the queue
    manager is expected to release the media recovery log extents
    after recording media image.  However the queue manager is not
    releasing
    the log extents after recording media image (e.g. by running
    rcdmqimg command). The problem is also applicable to queue
    managers configured with automatic media image recording.
    
    The QM logs likely to show AMQ7467 messages with increasing
    number of log extent numbers while the AMQ7468 messages with
    same extent number.
    
    Example:
    
    AMQ7467I: The oldest log file required to start queue manager
    QM1 is S0237665.LOG.
    AMQ7468I: The oldest log file required to perform media recovery
    of queue manager QM1 is S0237500.LOG.
    

Local fix

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    Users using a queue manager with linear logger and applications
    often creating and deleting permanent dynamic queues.
    
    
    Platforms affected:
    MultiPlatform
    
    ****************************************************************
    PROBLEM DESCRIPTION:
    A defect when reusing a permanent dynamic queue caused IBM MQ to
    fail to release the media recovery log extents.
    

Problem conclusion

  • The IBM MQ code has been modified to fix
    
    ---------------------------------------------------------------
    The fix is targeted for delivery in the following PTFs:
    
    Version    Maintenance Level
    v9.1 LTS   9.1.0.11
    v9.2 LTS   9.2.0.5
    v9.x CD    9.2.5
    
    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

    IT36990

  • Reported component name

    MQ BASE V9.2

  • Reported component ID

    5724H7281

  • Reported release

    920

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2021-05-24

  • Closed date

    2021-12-17

  • Last modified date

    2021-12-17

  • 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

    MQ BASE V9.2

  • Fixed component ID

    5724H7281

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":"920"}]

Document Information

Modified date:
18 December 2021