nginx + caching of static files

[Igor Sysoev]

On Mon, Apr 06, 2009 at 10:46:24PM -0700, Payam Chychi wrote:

> 2009/4/6 Igor Sysoev <is at rambler-co.ru>:
> > On Mon, Apr 06, 2009 at 10:14:36PM -0700, Payam Chychi wrote:
> >
> >> Hi Guys,
> >>
> >> I was hoping someone could point out a document where it can teach me
> >> how to setup nginx + caching. I know that traditionally nginx did not
> >> have a native caching and it required you to run ncache or cachemem in
> >> order to perform caching of static content... but does nginx now allow
> >> basic static file caching without the use of any other 3rd app?
> >>
> >> Im trying to understand if nginx now has a native caching which would
> >> allow caching of static content. I dont want to get fancy in anyway, I
> >> simply want to allocate say 200mb of storage space to allow caching of
> >> static content. the 200mb should be updated with the most
> >> active/recently seen file request.
> >>
> >> reason? im trying to allow nginx to serve the static files from disk
> >> (if it has seen it previously) and not have to go back to the origin
> >> server every single time.
> >
> > Get the lastest nginx (0.7.50) and use
> >
> >    proxy_cache_path  /path/to/cache  levels=1:2
> >                      keys_zone=one:10m
> >                      inactive=7d  max_size=200m;
> >
> >    proxy_temp_path   /path/to/temp;  # must be on the same filesystem
> >                                      # as cache
> >
> >    server {
> >
> >        location / {
> >            proxy_pass              http://backend;
> >
> >            proxy_cache             one;
> >            proxy_cache_key         backend$request_uri;
> >            proxy_cache_valid       200  1h;
> >            proxy_cache_use_stale   error timeout invalid_header;
> >        }
> >
> >
> >
> > --
> > Igor Sysoev
> > http://sysoev.ru/en/
> >
> >
>  proxy_cache_path  /path/to/cache  levels=1:2
>                      keys_zone=one:10m
>                      inactive=7d  max_size=200m;
> 
>    proxy_temp_path   /path/to/temp;  # must be on the same filesystem
>                                      # as cache
> 
>    server {
> 
>        location / {
>            proxy_pass              http://backend;
> 
>            proxy_cache             one;
>            proxy_cache_key         backend$request_uri;
>            proxy_cache_valid       200  1h;
>            proxy_cache_use_stale   error timeout invalid_header;
>        }
> 
> 
> 
> few questions:
> 1- what does the keys_zone used for
> 2- what does the "200 1h" in proxy_cache_valid mean
> 3- how is the "proxy_cache_use_stale  error timeout invalid_header" used?

http://wiki.nginx.org/NginxHttpProxyModule#proxy_cache


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