IC83767: FINALIZATION OF BLOB OBJECTS STARTS A NEW TRANSACTION IF AUTOCOMMIT IS SET TO FALSE

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APAR status

  • Closed as program error.

Error description

  • If your Informix JDBC based application deals with blob objects,
    once it finished using them forgetting all references,  the blob
    objects become eligible to be garbage collected. Because the
    finalizer code for blobs perform database operations, if
    autocommit=false for the connection,  a new local transaction is
    started.
    
    This interferes with the normal working of the applications and
    in particular may prevent XA transactions to be started.
    

Local fix

  • A possible workaround can be to set autocommit=true, if the
    application logic allows it
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * Users of IBM Informix JDBC from 3.10.JC1 to 3.70.JC4         *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See Error Description                                        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Update to JDBC-3.70.JC6                                      *
    ****************************************************************
    

Problem conclusion

  • Problem Fixed In JDBC-3.70.JC6
    

Temporary fix

Comments

APAR Information

  • APAR number

    IC83767

  • Reported component name

    IBM JDBC

  • Reported component ID

    5724I3501

  • Reported release

    370

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-05-25

  • Closed date

    2012-10-30

  • Last modified date

    2012-10-30

  • 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

    IBM JDBC

  • Fixed component ID

    5724I3501

Applicable component levels

  • R370 PSN

       UP



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Document information


More support for:

Informix Tools
Informix JDBC

Software version:

370

Reference #:

IC83767

Modified date:

2012-10-30

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