IC86952: POSSIBILITY OF ERKEY (IFX_ERKEY_2 COLUMN) CORRUPTION

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APAR status

  • Closed as program error.

Error description

  • It has been observed that ifx_erkey_2 column has duplicate
    values in data originating from same server, effectively
    violating the uniqueness expected from the ERKEY triplet of
    columns.
    This corruption only occurs in data rows while index entries
    still have the correct (and unique) values. Also only data
    already existing when ERKEY columns were ALTERed to the table
    seems to be affected.
    
    Symptoms of this problem can be:
     - "cdr check" finding missing and mismatching rows, even right
    after a "cdr sync"
     - "cdr check --repair" repairing these findings, but next "cdr
    check" reporting them again
     - ATS/RIS files in replicates using --erkey option, with e.g.
    -268/-100 error
     - data loss or other corruption when data is replicated using
    such incorrect ifx_erkey_2 value
    
    Oncheck -cI on the table or the index on ERKEY columns would
    immediately find the corruption - but beware of having the index
    repaired, as it isn't the index that is corrupted.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * Customers using ERKEY on alter statements on 11.70           *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See Error Description                                        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Update to IDS-11.70.xC7                                      *
    ****************************************************************
    

Problem conclusion

  • Problem Fixed In IDS-11.70.xC7
    

Temporary fix

Comments

APAR Information

  • APAR number

    IC86952

  • Reported component name

    INFORMIX SERVER

  • Reported component ID

    5725A3900

  • Reported release

    B70

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-10-02

  • Closed date

    2014-02-26

  • Last modified date

    2014-02-26

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

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

Fix information

  • Fixed component name

    INFORMIX SERVER

  • Fixed component ID

    5725A3900

Applicable component levels

  • RA10 PSN

       UP

  • RA10 PSY

       UP

  • RB10 PSN

       UP

  • RB10 PSY

       UP

  • RB50 PSN

       UP

  • RB50 PSY

       UP

  • RB70 PSN

       UP

  • RB70 PSY

       UP



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Document information


More support for:

Informix Servers

Software version:

B70

Reference #:

IC86952

Modified date:

2014-02-26

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