If you're using apache and mod_expires, you can cusomize you TTLs pretty specifically, per file type, mime and directory. With that you can settle for a set of compromise TTLs that suit everybody. Than again, you can use a proxy aware CMS like pressflow.
regards. Ray On Thu, Dec 16, 2010 at 3:26 PM, Paulo Paracatu <[email protected]> wrote: > Hi, > I read somewhere about backend conditional requests, or GET IMS. As I > understand, that would be exactly what I need. I'd be able to set a low TTL > and yet keep the BW beetween backend-varnish low. > And sorry if I sound rude. :P > > 2010/12/16 Per Buer <[email protected]> >> >> Hi, >> On Thu, Dec 16, 2010 at 9:31 PM, Paulo Paracatu <[email protected]> >> wrote: >>> >>> If I understood it, the purging method isn't automatic, right? I'd need >>> to purge the content everytime it is modified. >> >> Hi, >> Nobody purges the cache manually. You get your CMS to purge the cache for >> you. >>> >>> This is kinda stupid... I host more than 10k sites, modifying files >>> everytime. If I set a high TTL, the backend will be happy and the webmaster >>> will be angry. If I set a low TTL, the webmaster will be happy, but the >>> backend will die. Plus, there is no point using a cache if the TTL is low. >> >> It isn't stupid, computers don't have intuition and you have to actually >> tell them when you update data. If you can propose another way of getting >> the cache to magically purge itself of stale content please share it with >> us. :-) >> -- >> Per Buer, Varnish Software >> Phone: +47 21 98 92 61 / Mobile: +47 958 39 117 / Skype: per.buer >> Varnish makes websites fly! >> Want to learn more about Varnish? >> http://www.varnish-software.com/whitepapers >> >> >> _______________________________________________ >> varnish-misc mailing list >> [email protected] >> http://www.varnish-cache.org/lists/mailman/listinfo/varnish-misc > > > _______________________________________________ > varnish-misc mailing list > [email protected] > http://www.varnish-cache.org/lists/mailman/listinfo/varnish-misc > -- Knowingly entering a Ponzi scheme can be rational, in the economic sense, even at the last round of the scheme if a government will likely bail out those participating in the Ponzi scheme. The IPAB Posse _______________________________________________ varnish-misc mailing list [email protected] http://www.varnish-cache.org/lists/mailman/listinfo/varnish-misc
