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PI85949: DUPLICATE LRSN LOG RECORDS SKIPPED ON DB2V10

A fix is available

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APAR status

  • Closed as program error.

Error description

  • Systems with IIDR CDC z/OS PTF UI47911 applied may have log
    records skipped on DB2 for z/OS V10 that had duplicate LRSNs.
    The can manifest itself in a number of ways, including
    subscriptions ending with CHC1528E A UR Control Record
    sequencing error.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: Users of Change Data Capture for z/OS        *
    ****************************************************************
    * PROBLEM DESCRIPTION: Systems with IIDR CDC z/OS PTF UI47911  *
    *                      applied, running on a data sharing DB2  *
    *                      for z/OS V10 subsystem, might skip      *
    *                      processing of log records that have     *
    *                      duplicate LRSNs. The issue can manifest *
    *                      itself in a number of ways, including   *
    *                      subscriptions that end abnormally with  *
    *                      the message                             *
    *                      CHC1528E A UR Control Record            *
    *                      sequencing error.                       *
    ****************************************************************
    * RECOMMENDATION: APPLY CORRECTIVE SERVICE                     *
    ****************************************************************
    The code in PTF UI47911 to establish the log start position
    performed an incorrect calculation that affected subsequent
    processing on DB2 V10 data sharing subsystems.
    

Problem conclusion

  • The code to set the log reading starting position was updated to
    correct the issue.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PI85949

  • Reported component name

    INFO SRVR CDC Z

  • Reported component ID

    5655U7600

  • Reported release

    A21

  • Status

    CLOSED PER

  • PE

    YesPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2017-08-15

  • Closed date

    2017-08-17

  • Last modified date

    2017-09-02

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

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

    UI49629

Modules/Macros

  •    CHCDSCIQ CHCDSLGP CHCSDTGP
    

Fix information

  • Fixed component name

    INFO SRVR CDC Z

  • Fixed component ID

    5655U7600

Applicable component levels

  • RA21 PSY UI49629

       UP17/08/31 P F708 Ø

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: InfoSphere Data Replication for DB2 for z/OS

Software version: 10.2.1

Reference #: PI85949

Modified date: 02 September 2017


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