high performance infra strutucre

Friedrich Locke friedrich.locke at gmail.com
Sun Dec 23 01:09:25 UTC 2012

Thanks Matthews for you reply.

What cluster FS do you, or someone else, suggest for this farm of web
server ?
Does nginx support for mass hosting configuration? I would not like to set
each of the 100k domain manually !

Thanks once more!

PS: BTW, for the cluster FS, keep in mind i am running OpenBSD and cannot
change the this OS. I must adapt myself to it.

On Sat, Dec 22, 2012 at 9:27 PM, Jonathan Matthews
<contact at jpluscplusm.com>wrote:

> On 22 December 2012 22:19, Friedrich Locke <friedrich.locke at gmail.com>
> wrote:
> > Hey,
> >
> > this is my first message to this mailing list. I am not, right now, using
> > nginx, but i would like to do so.
> Good plan. It's a very flexible HTTP server and router.
> > My intent is the following:
> >
> > I would like to build a farm of x web server. I would like to perform
> load
> > balance among them. I need high performance and high availability for a
> set
> > of 100k domains to hosted within this farm of web server. The
> requirement i
> > was presented with is that a domain must be served by at least 3 server.
> That's very achievable. At mass-hosting volumes like these, you'll
> need to distinguish between static site hosting and dynamic
> application hosting. Doing the former at volume is (almost!) trivial
> using nginx; doing the latter will be more ... interesting.
> > I want to use nginx as web server; and could use nginx or varnish as
> reverse
> > proxy, which ever would be a better approach.
> If you mean a pure reverse proxy with responsibility other than HTTP
> routing, then nginx is very well suited to this. If you want to bring
> back-end health checks and HTTP caching into the mix as well, then I'd
> suggest supplementing nginx with Varnish (caching) and HAProxy (health
> checks). Whilst nginx can fulfil both these functions, I prefer those
> other two tools for various operational reasons.
> > Some doubts arose :
> >
> > 0) Do i need to have the html/jpeg/php/* of a given domain replicated on
> > each of the http server i want to serv that domain ?
> Generally yes, but you may wish to research network attached storage
> (NAS) and cluster filesystems for a common solution to this scaling
> problem.
> > 1) What happens if a web client upload a file to that domain, it (the
> file)
> > get saved in a http server and the next request of that web client to the
> > domain goes to a second http server the upload file is not there ?
> You don't mention if this is the site admin uploading files to the
> site, or user generated content (UGC) being provided by users
> In general, the former is something you'd need to solve in the same
> way you solved for your question #0, above. The latter is generally an
> application-level problem, which may well use the replication/etc
> strategies provided by the solution to #0, but really isn't obliged
> to.
> > 2) What about session? User authenticated session ? How does nginx manage
> > such? A given server could have information about a session and the other
> > server that serves the domain too is not aware about the session.
> You would normally solve this at the application or application framework
> layer.
> HTH,
> Jonathan
> --
> Jonathan Matthews // Oxford, London, UK
> http://www.jpluscplusm.com/contact.html
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