[erlang-questions] yaws mixing up requests?

Ulf Wiger <>
Sat May 30 19:27:03 CEST 2009


It's 60, which seems to be a fairly normal value.
Thanks anyway for the suggestion.

BR,
Ulf W
----- "Valentin Micic" <> wrote:

> I think this would be highly unlikely, but just to get it out of the
> way...
> What is the OS TIME_WAIT value -- if too short, wires may be crossed
> at the
> kernel level? 
> 
> V.
> 
> -----Original Message-----
> From:  [mailto:]
> On
> Behalf Of Francesco Cesarini (Erlang Training and Consulting)
> Sent: 30 May 2009 03:07 PM
> To: Christian
> Cc: Ulf Wiger; erlang-questions
> Subject: Re: [erlang-questions] yaws mixing up requests?
> 
> 
> > Another source of failure to inspect for you guys is that yaws
> > actually reuses processes. Maybe things can leak between requests
> in
> > the process registry, or in the process mailbox.
> >   
> We've done that already. What we've seen is that the error occurs in 
> conjunction with a socket error and that the requested HTTP request is
> 
> sent to the wrong user about 500ms after the original request comes
> in, 
> so we thought that might be the reason. But when the socket error 
> occurs, there is nothing suspicious stored in the process state / 
> dictionary. Gut feeling is that there is some form of overflow /
> memory 
> corruption in the socket layer / inets driver (or even better, in the
> 
> load balancers). We are now trying to reproduce the error on R13B.
> 
> Thanks for your input,
> Francesco
> 
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-- 
Ulf Wiger
CTO, Erlang Training & Consulting Ltd.
http://www.erlang-consulting.com


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