Adding sessions into the database is a great way to speed up your application, and it’s very easy to do in Rails 2.x. It can be done in the following, 3 easy, steps:

rake db:sessions:create

rake db:migrate

Now go into config/environment.rb and uncomment the following line:

# Use the database for sessions instead of the cookie-based default,
# which shouldn't be used to store highly confidential information
# (create the session table with 'rake db:sessions:create')
config.action_controller.session_store = :active_record_store

It’s is easy as that, now all of your sessions will be added to the database instead of files accessed at system level.

Cheers