[Zope] Zope performance documentation

[sean.upton@uniontrib.com]

You need apache or Squid in front to support virtual hosting, HTTP 1.1,
possibly caching, better security (ACLS, prevent DoS).

You need ZEO regardless of if you run in on 1 box or 100.  In future Zope
releases, ZEO will be an in-the-box sort of thing.

For your traffic, you want page caching, especially for things like the PDFs
you mention. Consider Squid, or at the very least Apache+mod_proxy with
caching of some sort configured.

For your traffic, you also need more than one ZEO client, perhaps on a
single multi-processor machine (scale up), or on a farm of nodes (scale
out).  I can't really tell you how many.  I think you need at least the
following:

- 1 fast box to run as a Squid or Apache caching proxy, mimimum 1-2 GB RAM
and ideally a dedicated raid 0 for cache)
- a few fast boxes to run Zope on
- 1 box with lots of ram and fast storage to run your ZEO storage server on

The last two could potentially be one big box, if done right.

Sean

-----Original Message-----
From: Fabio Rolando [mailto:ziofunk@tiscali.it]
Sent: Monday, March 31, 2003 7:10 AM
To: zope@zope.org
Subject: Re: [Zope] Zope performance documentation


...forgive me if I bother you.
what would Apache do better if I have no files served outside of Zope? I 
thought that I'd need apache only if I have files to serve that are not 
"passing" through Zope.Am I wrong?
Fabio

For
At 17:12 31-03-03 Monday, you wrote:
>I would use ExtFile for the PDFs, Apache in front and ZEO for failure.
>
>1 GHz + Pentiums, 1 GB of RAM (Zope/Python love RAM,) SCSI drives in RAID.
>
>BZ
>
> > First of all thank you a lot for you attention.
> > I'm quite new to Zope so it is still difficoult to understand how it
will
> > work when the system will be deployed.
> > We need to size the system for (all values are the absolute maximumwe
> > expect) 10.000 authenticated users, 10.000 documents (5000 pdf with 200
Kb
> > average size, and 500 html), 1000 hits/minute. Do you think we can use
> > Zope
> > alone (no ZEO, no Apache)?
> > Does the server's hardware need to carry anything special?
> > Thank you.
> >
> >
> >
> >> >> Hardware is up to you and what you need. You can run it on almost
> >> >> anything, but if you are going to run http://www.cbsnewyork.com you
> >> >> will
> >> >> need more (I think I read that all the sites combined in that Zope
> >> >> installation run on 48 dual proc linux boxes).
> >> >
> >> > that's way off (it's less). maybe i'll ask the boss-man today to see
> >> if
> >> > i am allowed to publish some real figures in a document somewhere.
> >> >
> >> > jens
> >> >
> >> >
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