IBM Support

IC89309: SEVERE CONCURRENCY ISSUE, 154 ERRORS WITH TRANSACTION ON UPDATABLE SDS NODE THAT UPDATES THE SAME ROWS IN A TABLE TWICE

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APAR status

  • Closed as program error.

Error description

  • If you have a transaction that updates the same rows in a table
    twice and you have several users that attempt to perform the
    same work, there is a significant performance problem that
    limits the number of times the transaction can complete after
    upgrading to 11.50.xC9 from 11.50.xC8W2.
    
    It appears you get as little as 1 of these transactions
    completing very 2-3 minutes compared to 11.50.FC8W2 where after
    my initial start up that's very blocked up (so 60 seconds or so
    of nothing)...once the 1st set of errors pop out, it completes
    at least a couple of transactions per second.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * any customer using updatable secondary servers               *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See Error Description                                        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Update to IDS-11.50.xC10                                     *
    ****************************************************************
    

Problem conclusion

  • Problem Fixed In IDS-11.50.xC10
    

Temporary fix

Comments

APAR Information

  • APAR number

    IC89309

  • Reported component name

    INFORMIX SERVER

  • Reported component ID

    5725A3900

  • Reported release

    B50

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2012-12-27

  • Closed date

    2017-06-15

  • Last modified date

    2017-06-15

  • 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



Document information

More support for: Informix Servers

Software version: B50

Reference #: IC89309

Modified date: 15 June 2017


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