Unknown marker: 0!!

Brian Bruns camber at umcc.ais.org
Tue Dec 7 18:16:04 EST 1999


Which version of freetds are you running?  I fixed a similar problem
recently which should be in freetds 0.50pre1

Brian

On Tue, 7 Dec 1999, Vanderlei Silva wrote:

> Hi folks,
> I have a program that uses freeTDS 4.2/DB-Lib to make inserts in a 
> SQL-Server 7. Everything works fine until I someone stops the server. When 
> this occurs, my program start sending the following message:
> Unknown marker: 0!!
> Unknown marker: 0!!
> Unknown marker: 0!!
> In a loop, and keep there forever.
> The only place I could imagine the error was been generated in my code is 
> the following:
> .
> .
> .
>         dbcmd(dbproc, query_buf);
>         dbsqlexec(dbproc);
>         while ((result_code = dbresults(dbproc)) != NO_MORE_RESULTS) {
>           if (result_code != SUCCEED) {
>             dbcancel(dbproc);
>             break;
>           }
>         }
>         if ((result_code != SUCCEED) &&
>            (result_code != NO_MORE_RESULTS)) {
>           dbcancel(dbproc);
>           backupDBWrite_log(d);
>           mainDBOK = 0;
>           mainDBRecheckCount = 100;
>         }
> .
> .
> .
> 
> But, seems to be right for me. I have no clue in how to detect the 
> connection was lost. I do have a backup database strategy implemented, using 
> mySQL, but it will only work if I manage to detect the error.
> Any help will be apreciated.
> Thanks,
> 
> Vanderlei
> 
> 
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