On Mon, Feb 01, 2010 at 10:50:37AM -0600, AMP Admin wrote:

> -----Original Message-----
> From: Igor Sysoev [mailto:igor@sysoev.ru]
> Sent: Monday, February 01, 2010 10:38 AM
> To: nginx@nginx.org
> Subject: Re: proxy_cache ramdisk
>
> On Sun, Jan 31, 2010 at 04:26:05PM -0600, AMP Admin wrote:
>
> > I'm able to cache php pages with the following but I can't seem to cache
> > static images with proxy_cache.
> >
> >
> > This works:
> >
> > location ~ \.php$ {
> >
> > fastcgi_index index.php;
> > fastcgi_pass 127.0.0.1:9000;
> > fastcgi_cache cachephp;
> > fastcgi_cache_key 127.0.0.1:9000$request_uri;
> > fastcgi_cache_valid 200 1h;
> > include fastcgi_params;
> > fastcgi_intercept_errors On;
> > fastcgi_ignore_client_abort On;
>
> "On" are invalid parameters.
>
> > fastcgi_buffer_size 128k;
> > fastcgi_buffers 4 128k;
> > }
> >
> >
> >
> > This does not work:
> >
> > location ~* \.(jpg|jpeg|gif|css|png|js|ico|tif)$ {
> > access_log off;
> > expires 30d;
> > proxy_pass http://127.0.0.1;
> > proxy_cache_key $scheme$host$request_uri
> > proxy_cache cachestatic;
> > proxy_cache_valid 200 1h;
> > proxy_cache_valid 404 5m;
>
> Why do you want to cache image from localhost ?
> You should handle them as static files.
>
> > break;
> > }
>
> "break" is useless here. It's just waste of CPU cycles.
>
>
> --------
>
> So I should just really just use cache like this:
> location ~ \.php$ {
>
> fastcgi_index index.php;
> fastcgi_pass 127.0.0.1:9000;
> fastcgi_cache cachephp;
> fastcgi_cache_key 127.0.0.1:9000$request_uri;
> fastcgi_cache_valid 200 1h;
> include fastcgi_params;
> }
>
> And images like this:
> location ~* \.(jpg|jpeg|gif|css|png|js|ico|tif)$ {
> access_log off;
> expires 30d;
> }
>
> That would be best for performance?

Yes.

> Also, I noticed when I use the fastcgi_cache above that it caches logged in
> pages and users see the wrong user profile... should I change the
> fastcgi_cache_key to fix that?

Yes. Probably, you may add an user cookie.
Actually, you should mark logged pages as non-cachable, otherwise transient
proxy servers may cache them as well.


--
Igor Sysoev
http://sysoev.ru/en/

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