My original question may have been unclear, but I’m not looking for help making this work. I already have W3TC working 100% on apache with memcached. What I’m trying to do is better understand “how” it works. Given that apache cannot serve content directly out of memcached, I assume that means that my requests for cached pages are still hitting PHP, and the W3TC plug-in is intercepting the requests, pulling the cached page out of memcached, and returning it. Is that correct?
Even if it was intended as an aside, I think the idea letting W3TC cache pages into memcached and then having nginx serve content directly out of there is pretty intriguing. The most immediate issue I see is that W3TC uses MD5 hashes to generate its memcached keys, and I don’t see a way of generating MD5 hashes in the nginx config. But I’ll look into it more. Thanks for the idea.
