> What you seem not to grasp at this point is a large web-farm, about 10 or
> more servers running PHP, Java, ASP, or even perl. The database is
> usually
> the most convenient and, aside from the particular issue we are talking
> about, best suited.
The answer is sticky sessions : each user is assigned to one and only one
webserver in the cluster and his session is maintained locally, in RAM. No
locks, no need to manage distributed session...
> I actually have a good number of years of experience in this topic, and
> memcached or file system files are NOT the best solutions for a server
> farm.
If sessions are distributed, certainly, but if sessions are sticky to
their own server ?