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Thread: ORA-03106: fatal two-task communication protocol error

  1. #1
    Join Date
    Jan 2001
    Hello all;

    I am running an application in the following environment :
    Client : SmallTalk
    MiddleWare : MQ
    Server : Pro*C
    DB : Oracle 8.1.6

    When in my application, I try to access some data and I get
    "ORA-03106 fatal two task communication protocaol error".
    Funny thing is it doesn't happen with all the records but there
    are some specific records for which I keep getting this error.
    I am not able to find any trend or any similarity among this data. Under test environment which has exactly the same client-server configuration, I don't get this error.

    We have been getting this error only after we upgraded to Oracle 8.1.6.

    Has anyone encountered this ? Any resources on this error ?

    Thanks in advance.

    Happy coding !!!

  2. #2
    Join Date
    Dec 2000
    Have you checked Metalink? One of the documents in metalink states the following :

    Possible reasons for the ORA-03106 errors include:

    1. Incompatibilities between the client application and the RDBMS server. For example, version incompatibilities, or a client trying to use a
    feature not supported by the database kernel.

    2. When using database links or gateways.

    3. Network or SQL*Net problems.

    4. Corruptions.

    5. PL/SQL - language related.

    There are many more documents in metalink on this error.


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