[freetds] Exececute procedure returns errors

Lowden, James K LowdenJK at bernstein.com
Tue Jul 27 16:14:09 EDT 2004

> From: David Keith
> Sent: Tuesday, July 27, 2004 2:59 PM
>     With the threaded datamodule and the standard AstaIO 
> data/metadata 
> events, ODBC Express implicitly begins/commits/rolls back/ends 
> transactions. With the <child> datamodule, I have to explicitly start 
> the transaction, execute the transaction, commit the transaction, end 
> the transaction and, in the case of an exception, rollback the 
> transaction. 

If I understand your log correctly, no amount of SQL changes will solve
the problem, because it doesn't lie in the server.  The "Attempt to
initiate a new SQL Server operation with results pending" message is
issued by FreeTDS when the application tries to start something new
before fetching/cancelling all the results of an outstanding query.  

>     I did not use any command-line switches with the logging 
> process. I 
> added the export=... directive to /etc/profile, and source'd 
> the file, 
> restarted my AstaIO server etc.

In that case, the log reflects several threads (probably) sharing a
single session.  Without some kind of synchronization, that's a race
condition waiting to fail.  

>     Thanks again.

You're welcome.  :-)


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