nginx-0.6.4

[Igor Sysoev]

On Wed, Jul 18, 2007 at 12:03:17AM +0200, Janko Hauser wrote:

> 
> Am 17.07.2007 um 15:53 schrieb Janko Hauser:
> 
> >Am 17.07.2007 um 15:16 schrieb Igor Sysoev:
> >
> >>On Tue, Jul 17, 2007 at 02:43:17PM +0200, Janko Hauser wrote:
> >>
> >>>Am 17.07.2007 um 12:44 schrieb Igor Sysoev:
> >>>
> >>>>proxy_store is not cache, it's rather mirror on demand:
> >>>>
> >>>>location /images/ {
> >>>>   root                 /data/www;
> >>>>   error_page           404 = /fetch$uri;
> >>>>}
> >>>>
> >>>>location /fetch {
> >>>>   internal;
> >>>>
> >>>>   proxy_pass           http://backend;
> >>>>   proxy_store          on;
> >>>>   proxy_store_access   user:rw  group:rw  all:r;
> >>>>   proxy_temp_path      /data/temp;
> >>>>
> >>>>   alias                /data/www;
> >>>>}
> >>>>
> >>>>if file is not found, then it will be fetched from backend and  
> >>>>stored
> >>>>in 'root/alias' or in path specified explicitly:
> >>>>
> >>>>proxy_store   /data/www$original_uri;
> >>>
> >>>Ah, that makes things clearer. Is it possible to steer this from the
> >>>backend by setting headers in the response or some other means? But
> >>>this alone will help a lot, thanks.
> >>
> >>proxy_store   /data/www$http_upstream_some_header;
> >
> >Ah, great, first I thought, this would set only the location, but  
> >if the backend sets a "wrong" path, the backend can actually  
> >decide, if its content should be stored. The flexibility of nginx  
> >is amazing.
> 
> Hm, thinking about this some more, the setting of a wrong path would  
> nevertheless mean, that something is written everytime the page is  
> called. It would be better to have some form of conditional,  
> preferable by the existence of a specific header, which can decide if  
> proxy_store directive is active, and the return value from the  
> backend is stored.

proxy_set_header  X-Store   yes;


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