IBM Support

IT34911: APAR IT17532 INTRODUCED RESET OF COLUMN STATS IN DB2LOOK MIMIC OUTPUT, CAUSING LOCKING BEHAVIOUR WITH ONLINE RUNNING APPS.

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APAR status

  • Closed as program error.

Error description

  • APAR IT17532 introduced reset of column stats in
    db2look output, which when updating stats on production causes
    locking behaviour with online transactions.
    
    This APAR will change the reset of column stats to be done per
    column and not for all columns at once which will alleviate the
    locking
    issue.
    

Local fix

  • Manually remove reset stats updates when updating stats on
    production.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * All Users on DB2 v111m4FP5 and earlier                       *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See Error Description                                        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Upgrade to DB2 v111m4FP6 or apply Local Fix if available     *
    ****************************************************************
    

Problem conclusion

  • First Fixed in DB2 v111m4FP6
    

Temporary fix

Comments

APAR Information

  • APAR number

    IT34911

  • 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

    2020-11-12

  • Closed date

    2021-03-15

  • Last modified date

    2021-03-15

  • 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

    DB2 FOR LUW

  • Fixed component ID

    DB2FORLUW

Applicable component levels

[{"Line of Business":{"code":"LOB10","label":"Data and AI"},"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSEPGG","label":"Db2 for Linux, UNIX and Windows"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"11.1"}]

Document Information

Modified date:
16 March 2021