Two things:

1 - Use Brix.  You can write your ecommerce components as tiles that can be
rearranged however you want in any site.  You can create plugins for the
admin console for management of said ecommerce shops.

2 - There's absolutely no way anybody on this list can answer your question.
 I've been to enough different businesses to know that those numbers are
entirely dependent on how you use the said frameworks.  You can use them
efficiently, or not.  You can have large object graphs, or not.  Etc.....
 You'll just have to see.  But I can tell you this: there are a lot of
high-traffic Wicket applications out there running on a single server of the
capacity you mention.  Assuming you hit a load barrier, it's likely going to
be the database first - so offload the DB to its own server.  That just
increased your capacity.  Etc, etc,

Jeremy Thomerson

On Sat, May 8, 2010 at 4:37 PM, Ján Raska <> wrote:

> Hello,
> I'm thinking about making small business by selling/renting e-shop and CMS
> applications written in Wicket. Now I'm trying to figure out, how many such
> applications can be hosted on a single server (let's assume 2x Dual Core
> Xeon 2.66 GHz, 4GB RAM). Except wicket, I'll use Spring and Hibernate or
> EclipseLink, libs in total shouldn't have more then 20-30MB, an average
> application can be assumed to have maximum of 200 active users at one time.
> Is there any way to figure it out? I'm basically trying to minimize a
> running cost per application and I love Java and Wicket too much to go back
> and do PHP stuff, though I guess it's impossible to beat PHP in terms of
> running cost. Can anybody help with this?
> Thanks
> Jan
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