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PK58768: INCORROUT NRF 0 ROWS WHEN THE SNOW FLAKE PARALLELISM GROUP IS NOT DEGENERATED INVOLVING SPARSE INDEX GENERATION ON I/O PAR

A fix is available

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APAR status

  • Closed as program error.

Error description

  • INCORROUT NRF 0 ROWS WHEN THE SNOW FLAKE PARALLELISM Group IS
    Not DEGENERATED.  Involves SPARSE Index generation on the (4th)
    snow flake I/O Parallel Group so when their's no degeneration
    it overwrites the sparse index data of the previous snow flakes.
    

Local fix

  • Disable Star Join, run with Set Current Degree='DSJ'
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All DB2 R810 and R910 parallelism users      *
    ****************************************************************
    * PROBLEM DESCRIPTION: An INCORROUT may be returned when a     *
    *                      query's access path contains both       *
    *                      SPARSE INDEX accessing and an I/O       *
    *                      parallel group.                         *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    An INCORROUT may be returned when a query's access path contains
    both SPARSE INDEX accessing and an I/O parallel group. It is
    because the SPARSE INDEX data area is freed too earlier after
    the I/O parallel group is done.
    

Problem conclusion

  • DB2 is modified to keep the SPARSE INDEX data area and not
    freed it too earlier.
    
    Additional Keywords: SQLIOP SQLSTARJOIN SQLINCORR INCORROUT
    

Temporary fix

  • *********
    * HIPER *
    *********
    

Comments

APAR Information

  • APAR number

    PK58768

  • Reported component name

    DB2 OS/390 & Z/

  • Reported component ID

    5740XYR00

  • Reported release

    810

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    YesHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2008-01-02

  • Closed date

    2008-02-07

  • Last modified date

    2008-03-03

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

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

    UK33540 UK33541

Modules/Macros

  • DSNXRSTP
    

Fix information

  • Fixed component name

    DB2 OS/390 & Z/

  • Fixed component ID

    5740XYR00

Applicable component levels

  • R810 PSY UK33540

       UP08/02/23 P F802

  • R910 PSY UK33541

       UP08/02/23 P F802

Fix is available

  • Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.



Document information

More support for: DB2 for z/OS

Software version: 8.1

Reference #: PK58768

Modified date: 03 March 2008