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PM74851: ABEND04E RC00E2000C DSNIWCUB DSNSVSVB +0AC2 INTENSIVE USE OF SORT WORKFILES

A fix is available

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APAR status

  • Closed as program error.

Error description

  • ABEND04E RC00E2000C DSNIWCUB DSNSVSVB +0AC2
    intensive use of sort workfiles
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All DB2 10 for z/OS users.                   *
    ****************************************************************
    * PROBLEM DESCRIPTION: An ABEND04E RC00E2000C can occur at     *
    *                      location DSNIWCUB.DSNSVSVB+0AC2 for     *
    *                      processing that involves an intensive   *
    *                      use of sort workfiles for a very large  *
    *                      sort.                                   *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    An ABEND04E RC00E2000C can occur at location DSNSVSVB +0AC2 for
    processing that involves an intensive use of sort workfiles for
    a very large sort.  In the reported error case, the number of
    sort workfiles exceeded 300k.
    
    During the input phase of sort, there can be a large amount of
    data to sort.  This can trigger the generation of multiple
    workfiles.  As more and more workfiles are created (which
    accumulate), more storage is needed (and used) to keep track of
    this information.  If this amount gets very large, it can
    exhaust the storage allotted for this administration.
    

Problem conclusion

  • The code in DB2 has been modified to perform intermediate merges
    of the input data as the number of workfiles increases.  This
    should prevent the storage abend and other possible 'resource
    unavailable' conditions from occurring.
    
    Additional Keywords: SQLSORT DB2STGLK/K OFFSET0AC2
    

Temporary fix

Comments

APAR Information

  • APAR number

    PM74851

  • Reported component name

    DB2 OS/390 & Z/

  • Reported component ID

    5740XYR00

  • Reported release

    A10

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-10-11

  • Closed date

    2012-11-05

  • Last modified date

    2012-12-04

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

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

    UK83248

Modules/Macros

  • DSNXSRCY DSNXSTSD DSNXSTSE DSNXSTSG
    

Fix information

  • Fixed component name

    DB2 OS/390 & Z/

  • Fixed component ID

    5740XYR00

Applicable component levels

  • RA10 PSY UK83248

       UP12/11/20 P F211

Fix is available

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Document Information

Modified date:
04 December 2012