Re: [Tclhttpd-users] Problem with form data in threaded tclhttpd

[George H. <fr...@di...>]

On Sun, 24 Oct 2004 01:17:56 -0400
Angel Sosa <xt...@am...> wrote:

> tcl...@li... wrote:
> 
> >
> >Today's Topics:
> >
> >   1. Problem with form data in threaded tclhttpd (George Harvey)
> >
> >--__--__--
> >
> >Message: 1
> >Date: Tue, 12 Oct 2004 21:01:04 +0100
> >From: George Harvey <fr...@di...>
> >To: tcl...@li...
> >Subject: [Tclhttpd-users] Problem with form data in threaded tclhttpd
> >
> >Hi,
> >
> >I'm conducting some stress testing of an application, built on
> >threaded tclhttpd, and I'm seeing some intermittent failures which
> >appear to be related to the handling of form and cookie data returned
> >to the server. I'm still trying to narrow down the problem but I'd
> >like to describe the symptoms to see if anyone else has seen (or even
> >fixed!) anything similar.
> >
[ snip ]  
> >
> 1. What OS are you running the web server on?
> 
> 2. If possible please take some small packet traces.
> 
> 3. You may want to try and place some delays with in your code.
> Increase the delays untiil your custom code works correctly. This step
> is just a way of seeing how much of a delay needs to be introduced.
> The results can then be used for adjusting tclhttpd code if necessary.

I did resort to packet traces at one point in my investigation but the
problem turned out to be cookie data getting over-written on the server
when two requests arrived close together. I have replaced a call to
'ncgi::cookie' with one to 'Cookie_GetSock' and haven't seen any more
mis-matches between my cookie and form data.

Regards,
George