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IC75331: STMM DOES NOT TUNE SORTHEAP CORRECTLY FOR INDEX CREATION (INCLUD ING LOAD,REORG)

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • Due to a logic error, STMM does not cost SORT operations for
    index creation during the initial "insert" phase.
    As a result, SORTHEAP may not be tuned appropriately.
    This impacts longer index creations which may benefit from
    higher SORTHEAP settings.
    Activities impacted include LOAD, REORG, CREATE INDEX.
    

Local fix

  • Manually tune SORTHEAP, SHEAPTHRES_SHR to desired values if the
    database is configured for AUTOMATIC Sort tuning.
    It is possible to do this dynamically with a database
    connection, and return to AUTOMATIC after the activity involving
    index creation is complete.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * Systems running with STMM enabled to tune SORTHEAP           *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See Error Description                                        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * upgrade to Version 9.7, Fix Pack 5                           *
    ****************************************************************
    

Problem conclusion

  • Problem first fixed in DB2 Version 9.7 Fix Pack 5
    

Temporary fix

Comments

APAR Information

  • APAR number

    IC75331

  • Reported component name

    DB2 FOR LUW

  • Reported component ID

    DB2FORLUW

  • Reported release

    970

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2011-03-28

  • Closed date

    2012-02-24

  • Last modified date

    2012-02-24

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

    IC75268

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

Modules/Macros

  • stmm
    

Fix information

  • Fixed component name

    DB2 FOR LUW

  • Fixed component ID

    DB2FORLUW

Applicable component levels

  • R970 PSN

       UP



Document information

More support for: DB2 for Linux, UNIX and Windows

Software version: 9.7

Reference #: IC75331

Modified date: 24 February 2012