In addition think about using a loadbalancer between the cache servers and the ZEO servers and maybe between the incoming IP and the cache servers. -aj ----- Original Message ----- From: "Jens Vagelpohl" <jens@zope.com> To: "Tom Nixon" <tom.nixon@aim23.com> Cc: <zope@zope.org> Sent: Tuesday, May 28, 2002 10:52 Subject: Re: [Zope] system requirements
for real scalability i would suggest the following:
- plan on having separate boxes from day 1: - ZEO server - 1-* appservers - 1-2 cache servers - database server
sending lots of mail out of zope is not a good idea if you don't have a solution that uncouples the mailing process from zope itself. your users will be waiting forever if you use the standard built-in mail handling.
caching is very important but it is not possible if your content is super-personalized.
jens
On Tuesday, May 28, 2002, at 10:31 , Tom Nixon wrote:
Hi
I need to quote for a fairly big Zope site and I am trying to work out what sort of spec machine I will need for hosting.
The brief is for a minimum of 50 concurrent users, rising to a possible 2000. They will be doing a lot of searching on the site, and there will be quite a lot of e-mails sent out by Zope. The site will also use an SQL database - either mySQL or postgreSQL.
My current thinking is:
- Linux: RedHat? - Zope with ZEO in case it expands beyond one box - Apache - Squid? - 512 MB RAM - 18 GB SCSI with RAID - 1.8 GHZ processor
Am I along the right lines?
Will Zope coexist nicely with the database on the same box or should they be separate from day one?
Cheers
Tom
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