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From Kamal <>
Subject Re: Multiple or single cocoon instances
Date Tue, 01 Apr 2008 09:57:30 GMT
We have multiple "applications" in one cocoon. I guess it depends on 
what you are doing, how much you can afford to spend on hardware and how 
important is zero down time.

If you have loads of money to spend on hardware (including maintenance), 
and you are bundling Java classes with Cocoon, then go with multiple 
instances of Cocoon. If you have one application server, what I don't 
recommend, is a scenario with multiple instances of Cocoon, all sitting 
in an a single application server. This is a disaster IMHO. Cocoon is a 
beast it is difficult to manage this well. Another thing I don't 
recommend is using mount tables. They seem like a good idea, but they 
are not as they are managed within Cocoon it is harder to change. In 
fact, if you are using an application server, you should try to get as 
much of the application off the application server.

I am actually curious as to how people run Cocoon. That is, do you use 
an application server (JBoss, SJSAS) or do people get by with Jetty.

Jeroen Reijn wrote:
> Hi Jose,
> well I guess that depends a bit on what your environment is.
> We at Hippo have used mulitple project -> 1 cocoon in the past, but 
> switched to using 1 cocoon instance per project.
> The problem with multiple project in 1 cocoon is that if one project 
> causes your server to fail it will drag down all the others.
> Also with updates it can be more easy to update only one application 
> instead of shutting down all project because 1 project needs a new 
> dependency.
> I guess it's more a personal taste, but a good topic IMO to see how 
> people handle their cocoon environments.
> Regards,
> Jeroen
> -----Original Message-----
> From: José Miguel Vieira []
> Sent: Mon 3/31/2008 11:37 AM
> To:
> Subject: Multiple or single cocoon instances
> Hello,
> At the moment we have several cocoon projects, about 20 or so, running 
> inside the same cocoon, version 2.1.10.
> Is this the best way to do it, or would it be better to have one 
> cocoon instance per project?
> Thanks,
> Miguel

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