[Catalyst] Re: Hypothetical Site and Scalability Planning

A. Pagaltzis pagaltzis at gmx.de
Sun Oct 28 14:22:48 GMT 2007

* Robert Mah <rmah at pobox.com> [2007-10-28 15:00]:
> Memcached is not distributed.

What are you talking about?

> Thus, you can't support distributed session state with it.

Well, you can’t put sessions in it because it doesn’t guarantee
that things you put in it will stay in it (it’s a cache, not a
persistence layer), but that has nothing to do with what you’re

> Having only one server is obviously bad from a scalability and
> reliability point of view. 

Not sure, again, what you are talking about. In May this year
Facebook reported that their memcached installation comprises
about 200 16GB 4-core AMD64 servers:

Aristotle Pagaltzis // <http://plasmasturm.org/>

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