WMS image cache?

[Paul Ramsey]

Doug,

I'm afraid we have now driven past my particular knowledge of HTTP into 
the realm of speculation. :) Time to hit the RFCs and see what-is-what. 
Or, just set up a simple test in mod_proxy and see if you get the 
behavior that you are looking for (set a default timeout and hopefully 
things will magically work).

Paul

Doug Cates wrote:

> On Wednesday 29 June 2005 14:11, Paul Ramsey wrote:
> 
>>Read back the headers, it is possible it is being returned with a
>>no-cache directive. Actually, checking mod_proxy, it looks like it
>>respects the HTTP headers pretty well (which would actually be a bad
>>thing, in your case).
> 
> 
> Paul,
> 
> Thanks. I see just these.
> 
> Connection = Keep-Alive
> Date = Thu, 30 Jun 2005 00:12:38 GMT
> Keep-Alive = timeout=15, max=100
> null = HTTP/1.1 200 OK
> Server = Apache/2.0.48 (Linux/SuSE)
> Content-Type = image/png
> Transfer-Encoding = chunked
> 
> Is there something that I could put in the msWMSGetMap function of mapwms.c to 
> set a caching flag? I'm guessing that I could put something right after where 
> the content type is set:
> 
> printf("Content-type: %s%c%c", MS_IMAGE_MIME_TYPE(map->outputformat), 10,10);
> 
> As always, any ideas are appreciated.
> 
> Doug