Re: Session and Multi Server Architecture
| From: | Nathan Nobbe | Date: | Mon, 11 Feb 2008 22:35:51 +0000 |
| Subject: | Re: Session and Multi Server Architecture | ||
| References: | 1 2 3 4 5 6 7 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-269132@lists.php.net to get a copy of this message | ||
On Feb 11, 2008 4:55 PM, Stut <stuttle@gmail.com> wrote:
> Per Jessen wrote:
> > On the next request, LVS will know not to try that server, and the user
> > will move to another one. Obviously the session-context will die, but
> > is that really a big deal? How often does one of your servers die?
> > Sure, if you've got 10,000 in a cluster, you'll have fans and harddisks
> > pop every so often, but I have my doubts about memcached scaling to
> > that level (please correct me if I'm wrong here, I have _no_ experience
> > with memcached).
>
> Facebook.
when i was in dc at the conference last year, there were several speakers
from facebook. they claimed they have (had) 400 servers w/ 4TB of memory
at on the memcache tier.
-nathan