PM74413: ABEND0C4 IN DSNIOST2 ON A SYSPLEX QUERY PARALLELISM CHILD TASK.

A fix is available

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APAR status

  • Closed as program error.

Error description

  • Dump Title: DBAD,ABND=0C4-00000010,U=BATPIW  ,M=N  ,C=101.DMC
    -DSNIST2O,M=DSNTFRCV,LOC=DSNIDM  .DSNIOST2+2C12
    A sysplex query parallelism child task issued ABEND0C4 in
    DSNIOST2 because MSIDMSPROC was incorrect.
    It looks like the MSIDMSPROC was set by the parent task in
    another member to point its SPROC when the MSIB was used by the
    parent task.
    But the SPROC was not accessible by the child tasks in other
    members.
    The MSIDMSPROC should have been cleared before copying the MSIB
    for child tasks.
    

Local fix

  • Disable sysplex query parallelism.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All DB2 10 for z/OS users of sysplex         *
    *                 parallelism                                  *
    ****************************************************************
    * PROBLEM DESCRIPTION: ABEND0C4 RC04 at DSNIOST2+2C12 can      *
    *                      occur while running a sysplex parallel  *
    *                      query.                                  *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    ABEND0C4 RC04 at DSNIOST2+2C12 can occur for a query that is run
    with sysplex parallelism.  The abend is caused by a residual
    SPROC address which missed the cleanup while creating a child
    task in the local DB2 system.
    

Problem conclusion

  • DB2 code is modified to clean up residual addresses for SPROC
    and PPROC while starting the child task.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PM74413

  • 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

    2012-10-05

  • Closed date

    2013-01-21

  • Last modified date

    2013-03-04

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

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

    UK91084

Modules/Macros

  •    DSNXRTSC DSNXRTSS
    

Fix information

  • Fixed component name

    DB2 OS/390 & Z/

  • Fixed component ID

    5740XYR00

Applicable component levels

  • RA10 PSY UK91084

       UP13/02/06 P F302

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.



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Document information


More support for:

DB2 for z/OS

Software version:

A10

Reference #:

PM74413

Modified date:

2013-03-04

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