Adrian, thanks so much for your input.
See further comments and questions below.
Adrian J. Moreno wrote:
Christopher Jordan wrote:
So the very general question is what benefits do we get from
switching to the enterprise edition?
More specifically though:
1. Is my client right? Can we only do this sort of three-tiered
architecture using the enterprise edition of CF?
Yes you can, we're working on implementing this in the next couple of
months.
Yes, but is it *only* possible to set up this kind of three-tiered
situation using the enterprise edition, or can it also be done using
Standard or Professional?
2. We're anticipating that we will have between 300 and 500 users
(give or take) when all is said and done. That compares to *maybe*
a hundred users right now. Is that sufficient to require
clustering?
Doubtful. You may only need a pair of load balanced CF Standard
servers for that few users.
Thanks, that's sort of what I thought
3. If we do end up getting enterprise and wanting to cluster servers
together, is that difficult to set up? And...
It's not really difficult, just annoying.
How is it annoying?
4. ... would I have to make any changes to the way that I code to
take advantage of clustering?
We've got 8 clustered CF servers and I don't think we code any
differently than I have in the past. You only have to write things
differently if you're doing OO with multiple instances and are placing
objects into application or session variables.
Okay. I think that's what I was looking for. We don't really do OO (not
yet anyway), but we do make use of CFCs to hold queries, and other code
reuse.
5. What are the advantages/disadvantages of running CF as a service
versus running it as an instance on a J2EE application server? (am
I saying that right?)
When you create an instance of CF on Windows, there's an option to
create a Windows service for it as well.
When you run multiple servers and multiple instances on each server,
when an error occurs you need to know exactly which server & instance
the user was on when it happened. Go to
http://www.unitrinspecialty.com and Ctrl+A to select all the text on
the page. We place that info in white text under the footer and pass
it in hidden field values on the form that users get when an error
happens.
I see the server and date information. That's cool.
Unless you're going to need Event Gateways (aren't they going to be in
CF 8 Standard?) or multiple instances I don't see any reason to go to
Enterprise. But if you do and you don't want to use JRun, CF 8
officially supports JBoss. There's no need use Weblogic or some of
those other high dollar J2EE application servers when JBoss is free.
We're running CF as a service on Windows Server 2003 R2, and there is an
instance of JRun in our task manager. In an earlier post Eric Knipp
suggested that JRun wasn't the greatest J2EE server. Do you (or anyone
else) think that we'd get better performance (even while running as a
service) if we were to use JBoss? Or is JBoss something you only use
when *not* running as a windows service.
Sorry for all the bonehead questions. I really appreciate everyone's
help and advice! :o)
Chris
--
http://www.cjordan.us
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