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IT37326: TOTAL_LOG_USED MONITOR ELEMENT SHOW UNREASONABLY HIGH VALUE

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APAR status

  • Closed as program error.

Error description

  • This problem occurs when the LOGFILSIZ database configuration
    parameter is set to 1053721 or higher.
    
    User may notice a very high value of the TOTAL_LOG_USED
    under monitor function mon_get_transaction_log().  The usage
    value reported is much higher than the actual use, and over time
    it gets worse.
    
    The trigger for the incorrect tracking of log space usage is by
    and ONLINE BACKUP operation, or ARCHIVE LOG command,
    which truncates the current log file.
    
    This is not just an incorrect reporting problem.  It can also
    cause
    transactions to fail with SQL0964N error when there should be
    sufficient log space to contain the workload.
    
    
    Deactivate the database can resolve the incorrect tracking of
    log space.
    

Local fix

  • Deactivate the database can resolve the incorrect tracking of
    log space.
    
    Configuring LOGFILSIZ database configuration parameter to a
    value smaller than 1053721 can avoid this problem.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * All                                                          *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See Error Description above                                  *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Upgrade to DB2 Version 11.1 Mod 4 Fix Pack 7                 *
    ****************************************************************
    

Problem conclusion

  • First fixed in DB2 Version 11.1 Mod 4  Fix Pack 7
    

Temporary fix

Comments

APAR Information

  • APAR number

    IT37326

  • Reported component name

    DB2 FOR LUW

  • Reported component ID

    DB2FORLUW

  • Reported release

    B10

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2021-06-18

  • Closed date

    2022-04-17

  • Last modified date

    2022-04-17

  • APAR is sysrouted FROM one or more of the following:

  • APAR is sysrouted TO one or more of the following:

    IT37475 IT37495 IT37496

Fix information

  • Fixed component name

    DB2 FOR LUW

  • Fixed component ID

    DB2FORLUW

Applicable component levels

  • RB10 PSN

       UP

[{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSEPGG","label":"DB2 for Linux- UNIX and Windows"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"11.1","Line of Business":{"code":"LOB10","label":"Data and AI"}}]

Document Information

Modified date:
04 May 2022