Time out errors using uwsgi with ngnix on debian 7 (wheezy)

[Maxim Dounin]

Hello!

On Wed, Jan 08, 2014 at 08:15:47PM -0500, Denis Papathanasiou wrote:

> I've installed nginx via apt, using the nginx stable pkg as described here:
> http://nginx.org/en/linux_packages.html#stable
> 
> It works perfectly for serving static files using the default configuration.
> 
> Next, I installed uwsgi from source, as described here:
> https://pypi.python.org/pypi/uWSGI/1.2.3
> 
> When I do the steps in the python quickstart guide --
> http://uwsgi-docs.readthedocs.org/en/latest/WSGIquickstart.html -- and open
> my browser to localhost:9090, everything works as expected.
> 
> When I change the nginx config file to use uwsgi_pass to localhost:9090 as
> described here --
> http://uwsgi-docs.readthedocs.org/en/latest/WSGIquickstart.html#putting-behind-a-full-webserver--
> however, I get time out errors:
> 
> > upstream timed out (110: Connection timed out) while reading response
> header from upstream
> 
> It is as though nginx is *not* passing those requests to the uwsgi process
> (which is still running).
> 
> Here is the content of server{ } inside the nginx config file:
> 
>         location / {
>             include uwsgi_params;
>             uwsgi_pass localhost:9090;
>         }
> 
> Any ideas on what the problem might be?

If you are able to connect to localhost:9090 with your browser, 
you are likely using native HTTP support in your uWSGI server.   
The "uwsgi_pass" directive assumes uwsgi protocol though, which is 
different.

You should either reconfigure uWSGI server to work via uwsgi, or 
instruct nginx to talk via HTTP (i.e., use "proxy_pass" instead of 
"uwsgi_pass").

-- 
Maxim Dounin
http://nginx.org/