fastcgi and X-Accel-Redirect

[Jaroslav Gresula]

Maxim Dounin wrote:
> Hello!
>
> On Sun, Dec 20, 2009 at 10:41:58PM +0100, Jaroslav Gresula wrote:
>
>> Jaroslav Gresula wrote:
>> > I use nginx 8.22 and flup (a fastcgi python server). When I send a file
>> > using the X-Accel-Redirect header then flup reports "Connection reset by
>> > peer" error - but nginx still delivers the file.
>> >
>> > Sending a file in the response body (i.e. the standard way) works well.
>> >
>> > Does anyone have any idea what might be causing that ECONNRESET?
>> >
>> 
>> Update:
>> 
>> Closer inspection in wireshark shows that nginx sends RST roughly in a
>> half of cases whereas the other half of connections is closed correctly.
>> 
>> In the successful cases, nginx receives response headers + another 4
>> packets and then flup is the one who closes the connection.
>> 
>> In the failed cases, nginx sends FIN,ACK followed by RST right after it
>> receives response headers.
>> 
>> Any ideas why nginx is sending RST?
>
> nginx closes backend connection right after it receives full 
> headers with X-Accel-Redirect.  No idea why on your system this 
> implies RST.  Are you running nginx under Windows?
>
> Maxim Dounin

No, I'm on a linux box, Debian Lenny amd64.

-- 
Jarda
http://jagpdf.org