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PH16977: CDC FOR Z/OS DOES NOT HAVE AN OBVIOUS MEANS OF HANDLING IN-DOUBTURS THAT HAVE BEEN SCRAPED AND ARE STUCK IN THE STAGING SPACE.

A fix is available

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APAR status

  • Closed as program error.

Error description

  • There is no obvious means for CDC for z/OS to handle in-doubt
    URs that have been scrapped and are stuck in the staging space.
    The in-doubt URs can occur due to DB2 restart and currently
    there is a lack of external messages and documented procedures
    for handling these in-doubt URs.
    

Local fix

  • A refresh can be performed on the subscriptions with the indoubt
    transaction.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED: Users of InfoSphere Change Data Capture for  *
    *                 z/OS.                                        *
    ****************************************************************
    * PROBLEM DESCRIPTION: An instance of IIDR CDC for z/OS does   *
    *                      not properly handle an in-doubt UR in   *
    *                      the staging space.                      *
    ****************************************************************
    * RECOMMENDATION: APPLY CORRECTIVE SERVICE                     *
    ****************************************************************
    An abnormal shutdown of DB2 for z/OS during replication
    can cause an in-doubt UR to be written in the logs. IIDR CDC
    for z/OS does not correctly handle this in-doubt UR.
    

Problem conclusion

  • A new configuration parameter, ONURINDOUBT, is introduced.
    IIDR CDC for z/OS will either COMMIT or ROLLBACK in-doubt
    UR. Default is ROLLBACK.
    

Temporary fix

Comments

  • ×**** PE20/10/28 FIX IN ERROR. SEE APAR PH27203  FOR DESCRIPTION
    

APAR Information

  • APAR number

    PH16977

  • Reported component name

    INFO SRVR CDC Z

  • Reported component ID

    5655U7600

  • Reported release

    A21

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2019-09-16

  • Closed date

    2020-09-22

  • Last modified date

    2020-10-29

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

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

    UI71664

Modules/Macros

  •    CHCDLSGP CHCDSCPF CHCPAAUT CHCSTGSP
    

Publications Referenced
GI10894101    

Fix information

  • Fixed component name

    INFO SRVR CDC Z

  • Fixed component ID

    5655U7600

Applicable component levels

  • RA21 PSY UI71664

       UP20/09/26 P F009

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

Modified date:
30 October 2020