Heroku follow : how to handle multiple databases in a Rails app?

Question

We have a Rails app hosted on Heroku and i need to set up some analytics pages for our marketing guy. This seems to be the typical use case for a Heroku follow database

Answer 1

To better answer this question : Heroku has now posted an "official" way of dealing with this situation using the Octopus gem :

https://devcenter.heroku.com/articles/distributing-reads-to-followers-with-octopus

With this gem it's possible to create either a fully replicated model, or execute only a block on the follower :

Octopus.using(:slave_two) do
  User.create(:name => "Mike")
end