jshen: sticky sessions make it a non-issue. Sites I work on run on 3-100 server clusters with each server handling a few thousand active sessions.
I know memcached is very fast. However it's at least an order of magnitude, or more, slower than in memory lookups. Given how simple sticky sessions are I guess I'm not sure why you'd want to incur the overhead of re-buildling your state via external network calls and object serialization/marshalling/etc... for every request, and doing it all backwards at the end of every request.
I know memcached is very fast. However it's at least an order of magnitude, or more, slower than in memory lookups. Given how simple sticky sessions are I guess I'm not sure why you'd want to incur the overhead of re-buildling your state via external network calls and object serialization/marshalling/etc... for every request, and doing it all backwards at the end of every request.