Proxy Feature Request

mat h mat999 at gmail.com
Fri Sep 10 05:59:40 MSD 2010


Yes that is true, I take it nginx doesnt have support for it at the moment?

On Fri, Sep 10, 2010 at 4:52 AM, Maxim Dounin <mdounin at mdounin.ru> wrote:
> Hello!
>
> On Thu, Sep 09, 2010 at 05:40:56PM +1000, mat h wrote:
>
>> Ok first of all long time mailing list reader here, first time in a
>> while ive sent something in.
>>
>> Ok, heres my request:
>> A module that would allow for a partial proxy_cache based on the last
>> modified date returned by the upstream server, basically here's the
>> pseudo code for it (persuming that the location block had something
>> like "proxy_partial_cache on;")
>>
>> Request: http://test.com/123.html
>> Fetch Page http://upstream/123.html
>> loop headers {
>> if(header=='last-modified'){
>> if(last_modified_date <= proxy_last_modified_date){
>> return proxy_data and terminate_upstream_connection;
>> }
>> }
>> }
>> return upstream_data;
>>
>> Hope that explains my request,
>
> Looks like what you ask for is usually called cache revalidation.
>
> Using If-Modified-Since in request to backend (with last-modified
> from already cached response) and returning cached copy on 304
> backend reply would be better way to go.
>
> Maxim Dounin
>
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