FreeTDS Development Group

[Frediano Ziglio <freddy77 AT gmail.com>]

2009/8/18 Mittel, Alexander <Alexander.Mittel AT siemens.com>:
>
...
>
>> >>>>>update 3)
>>         sometimes there are errors (freetds/tsql and unixodbc/isql), then 
>> the connection is still active
>>         but every next sql-command will be result in one of these errors:
>>
>>                 Msg 20004, Level 9, State -1, Server OpenClient, Line -1
>>                 Read from the server failed
>>
>>                 Msg 20006, Level 9, State -1, Server OpenClient, Line -1
>>                 Write to the server failed
>>
>
>>>>Mmmm.... probably server close the connection. Which queries cause these
>>>>problems ??
>
> Last days this problem does not occur anymore.
> Must be a configuration error while installing (freetds.conf, PATH, 
> LD_LIBRARY_PATH, LANG/TERM [ansi<->UTF],...)
> Today I can't reproduce the error, even when mis-config some things.
>

I don't know if this may apply but I found and fixed a problem with
threads (see 
http://freetds.cvs.sourceforge.net/viewvc/freetds/freetds/src/tds/net.c?r1=1.93&r2=1.94)

freddy77