Proxy Cache and Range Requests

[Igor Sysoev]

On Mon, May 25, 2009 at 05:18:25PM -0500, Resicow wrote:

> Hi Igor,
> 
> Currently I am using proxy_cache, but have a question on how nginx 
> handles range requests for a file that is not currently in cache. Will 
> nginx simply proxy the file and not cache it, or download the entire 
> file into cache, but just serve the range request to the client.

nginx gets the entire file and returns the range to the client.
There is issue with multiple ranges in one request (although this is
rare case, as I know only Acrobat Reader does such requests).
For the first request when response would be cached, nginx is able
to serve only first range of the request. But with already cached response
nginx is able to serve all ranges of the request.

> Congrats on 0.7.59, and keep up the great work!
> 
> Thanks,
> 
> John
> 
> 
> 
> Igor Sysoev wrote:
> >Changes with nginx 0.7.59                                        25 May 
> >2009
> >
> >    *) Feature: the "proxy_cache_methods" and "fastcgi_cache_methods" 
> >       directives.
> >
> >    *) Bugfix: socket leak; the bug had appeared in 0.7.25.
> >       Thanks to Maxim Dounin.
> >
> >    *) Bugfix: a segmentation fault occurred in worker process, 
> >       if a request had no body and the $request_body variable was used;
> >       the bug had appeared in 0.7.58.
> >
> >    *) Bugfix: the SSL modules might not built on Solaris and Linux;
> >       the bug had appeared in 0.7.58.
> >
> >    *) Bugfix: ngx_http_xslt_filter_module responses were not handled by 
> >       SSI, charset, and gzip filters.
> >
> >    *) Bugfix: a "charset" directive did not set a charset to 
> >       ngx_http_gzip_static_module responses.
> >
> >
> >The 0.7.x version status is changed to stable.
> >While 0.7.x version development the following features appreared:
> >
> >    *) caching of proxied and FastCGI servers;
> >    *) "try_files" directive;
> >    *) the "location" and "server_name" directives support captures
> >       in regular expressions;
> >    *) XLST and image filters;
> >    *) a preliminary IPv6 support;
> >    *) nginx/Windows.
> >
> >
> >  
> 

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