Getchell, Adam wrote:
Sure - badly behaved products suck.
So, enterprise authentication using CAS isn't important to a CMS?
I didn't say that, and I think you're getting off piste here. You
started a thread about scalability. Now you're talking about something
entirely different.
So, what would be the setup for using Plone in a large Enterprise?
Say, if Microsoft got rid of SharePoint and started using Plone for
their CMS? What would your build out look like?
That's such a broad question that I can't answer it.
But this has nothing whatsoever to do with scalability or the
difference between a ZEO server and a ZEO client.
Well, leaving out the products, Plone/Zope still doesn't scale
(except possibly with ZEO Raid, which is in SVN so not looking
production-ready yet) to more than one backend natively, and its
performance is known to be poor, see for example [1], [2].
[1] is one blogger's viewpoint; [2] is something else entirely - it's
about what you do when you've got an infinite loop or never-ending
process inside your application.
The bottleneck for scalability is typically not the ZEO backend server,
it's at the clients, and those do scale up near linearly as you add more
nodes.
The fact that you have to put Plone instances on different boxes. I
had no problems running 20+ websites on even a single IIS box, and
those could be easily load-balanced. If database driven with a SQL
backend, SQL could be clustered as well.
Sure, but you're hardly comparing apples and apples here, are you?
I don't really want to get into an argument about the rest of this
thread. I don't think it's constructive anymore, and I can sense that
you're frustrated, which I fully understand.
I think there would have been better ways to deal with the problems
you're seeing - either by posting specific, targetted questions to the
plone-user mailing list and getting help that way, or by hiring
appropriately skilled people to diagnose your problems (or maybe, in
hindsight, to have applied a somewhat better design up front). All of
that is purely speculative, of course, because I don't know what your
setup is like. I can only infer that (a) it's an unusual setup since
you're trying to server a lot of sites out of one instance and (b)
something is quite messed up, because OOTB, Plone doesn't behave the way
you describe (e.g. throwing errors every few seconds).
Martin
--
Author of `Professional Plone Development`, a book for developers who
want to work with Plone. See http://martinaspeli.net/plone-book
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