FreeTDS Development Group

["Lowden, James K" <LowdenJK AT bernstein.com>]

> From: RCM2, Inc
> Sent: Tuesday, September 27, 2005 3:36 PM
> 
> We are running a Web management package (written in Perl) under
> Apache on Lunux.  We are using FreeTDS to connect to a Microsoft
> SQL 2000 Server.  The connect string is
> dbi:Sybase:server=wbshost;database=testdb
>  
> If we stop and start Apache on the Linux box, the SQL server will
> lockup; it will still do selects, but will not do any updates.

[Further to Brian's helpful reply.]

There's not much to go on here.  See if the connection maintained by
your Apache server is being closed on the server.  If there's a SPID,
does it go away when the server is stopped?  Also, is there any firewall
between the web and database servers?  That could prevent the server
from detecting the client's demise.  

It is possible to disconnect rudely from a Microsoft server and leave
the SPID in place.  I have seen this happen with Microsoft's drivers and
with FreeTDS.  

Like Brian, I suspect that the problem with not being able to do updates
is that the server process begins an update, the Apache process ends
prematurely, but the server process does not.  That would leave the
transaction uncommitted and the locks in place, blocking further
updates.   Your DBA should be able to confirm.  

A TDSDUMP of the session might shed some light.  

> Any ideals would be appreciated.  

Carpe diem.  ;-)

--jkl

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