Upstream fail over?

[Maxim Dounin]

Hello!

On Fri, Jul 31, 2009 at 08:00:05PM +0200, Mitchua Mitchua wrote:

> Mitchua Mitchua wrote:
> > Mahiti Support wrote:
> >> Mitchua Mitchua wrote:
> >>> > 
> >>> I tried a config like this on 0.8.6 and I found that all requests ended 
> >>> up going to the @application proxy, skipping the @varnish proxy 
> >>> entirely. Am I doing something wrong?
> >>> 
> >>> Here's a sample of my config:
> >>> 
> >>> 
> >>>     location /
> >>>   {
> >>>     try_files @vanish @origin;
> >>>   }
> >>> 
> >>> Thanks!
> >> 
> >> Hi,
> >> 
> >> You seem to have put it as @vanish instead of @varnish.
> >> Is that causing you the issue?
> >> 
> >> Vishnu
> > 
> > Sorry, bad copy/paste job ;)  Those are correct in the config I'm using.
> > 
> > Any ideas?  Does that look right?
> 
> I just tried this and the root document of the website hits the varnish 
> servers, but every other request doesn't. Could there be a pathing 
> problem going on here?
> 
> location /
>   {
>     try_files $uri $uri/ @origin;
>     proxy_pass http://varnishservers;
>     proxy_set_header Host $host;
>     proxy_connect_timeout 3;
>     proxy_next_upstream error timeout;
>   }

You try to use try_files, while you have no files.  It won't work.  
Again: try_files work only with *files*. That's why it's named 
try_files.

Use error_page based fallback instead.

Maxim Dounin