On Sat, May 08, 2010 at 09:24:19PM -0700, Kandada Boggu wrote:
>
>   Thanks for the detailed answer. I wonder if Heroku swaps the rails
> server if I buy a dedicated plan(i.e. Ronin and above).

The answer is in Heroku's documentation.

> How do I ensure DMStorage shares the same DB configuration as the
> rails application?

There is only one "DB configuration"

  DataMapper.setup(:default, ENV['DATABASE_URL'] || 'sqlite3://my.db')

Why would Heroku setup an extra other database for you ?

> What is the performance implications of running the worker and server
> in the same process?

There is one more thread, the worker thread. It polls the database at least 
twice per second for "work".

> Can I run multiple servers? (If I run multiple Dyno's every node might
> run a server, should this be an issue?)

It should be OK. The worker system is meant to deal with those contexts.

Note that you have to use ruote-dm 2.1.10 (to be released as a gem soon) in 
multi-workers contexts.

If you encounter issues and can provide useful feedback, I'd probably be able 
to fix them.

> Is there a rails application that I can refer to?

As I have said it is very easy to infer a rails application setting from the 
barley example I have given the link to and from regular ruote-kit examples.

  http://github.com/tosch/ruote-on-rails
  http://github.com/threetee/ruote-rails-example

If you have more precise technical questions, they are welcome.


Best regards,

-- 
John Mettraux - http://jmettraux.wordpress.com

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