> The problem is that if you're using APC on multiple webservers Yes. You have two solutions available. Use something like Redis or Memcached, as you noted. Th

> The problem is that if you're using APC on multiple webservers Yes. You have two solutions available. Use something like Redis or Memcached, as you noted. The other solution is to go virtual. At that point, you can scale a single instance to a fairly large size. If a single machine/instance isn't enough to handle your load, you'll end up using something like Redis/Memcached regardless of what platform you're on.