nginx-0.7.44

[Jérôme Loyet]

2009/3/23 Igor Sysoev <is at rambler-co.ru>:
> On Mon, Mar 23, 2009 at 10:42:45PM +0800, Delta Yeh wrote:
>
>> How to use the cache feature?
>> What kind of cache does it support?
>
> Here is configuraiton example:
>
> http {
>     proxy_cache_path   /path/to/cache  levels=1:2
>                        keys_zone=NAME:10m
>                        inactive=5m     clean_time=2h00m;
>
>     server {
>         location / {
>             proxy_pass    http://127.0.0.1;
>
>             proxy_cache   NAME;
>
>             proxy_cache_valid   200 302  1h;
>             proxy_cache_valid   301      1d;
>             proxy_cache_valid   any      1m;
>
>             proxy_cache_min_uses  1;
>
>             proxy_cache_use_stale   error  timeout invalid_header http_500;
>         }
>     }
>
> The cache currently ignores backend's Cache-Control, Expires, etc.

hi Igor,

Do I understand correctly the proxy_cache_use_stale directive:

proxy_cache_use_stale   error  timeout invalid_header http_500;

If cache is still valid {
  serve content from cache
} else {
  Ask fresh data to the backend
  if connection status IS IN  (proxy_cache_use_stale parameters) {
      serve content from cache
  } else {
      act as normal
  }
}

thx
++ jerome