-OpenStreetMap::Application.config.session_store :cookie_store, :key => '_osm_session'
-
-# 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")
-# OpenStreetMap::Application.config.session_store :active_record_store
+if defined?(MEMCACHE_SERVERS)
+ Rails.application.config.session_store :mem_cache_store, :memcache_server => MEMCACHE_SERVERS, :namespace => "rails:session", :key => "_osm_session"
+else
+ Rails.application.config.session_store :cache_store, :key => "_osm_session", :cache => ActiveSupport::Cache::MemoryStore.new
+end