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REDIS Redis is an open source, advanced key- value store. It is often referred to as a data structure server since keys can contain strings, hashes,lists, sets and sorted sets. gem ‘redis’ 

USE Cache Session (cookies) gem ‘redis-rails’ App::Application.config.session_store :redis_store, :servers => "redis://127.0.0.1:6379/1" 

Commands $redis = new Redis(:host => ‘127.0.0.7’, :port => 6379, :db => 0) $redis.set(‘my_key’, ‘awesome’) $redis.get(‘my_key’) => ‘awesome’ $redis.del(‘my_key’) 

ENVIRONMENT Resque (+ Scheduler) Ohm EventMachine PubSub 

Resque (+Scheduler) Fast ² Queue YAML - Cron gem ‘resque’ gem ‘resque-scheduler’, git: 'git://github.com/bvandenbos/resque-scheduler' 

Ohm ORM Flexible Extensible gem ‘ohm’ gem ‘ohm-contrib’ 

Ohm (model) class User < Ohm::Model attribute :name attribute :nickname include Ohm::Validations extend ActiveModel::Naming include ActiveModel::AttributeMethods index :name collection :messages, Message end 

Ohm (model) class User < Ohm::Model def persisted? false end def to_hash super.merge({:name => self.name}) end end 

Ohm (model) class Message < Ohm::Model attribute :content include Ohm::Validations extend ActiveModel::Naming include ActiveModel::AttributeMethods index :content reference :user, User end 

EventMachine Node.js for Ruby em-WebSocket em-redis gem ‘eventmachine’ gem ‘em-redis’ 

PubSub $redis = new Redis(:host => ‘127.0.0.7’, :port => 6379, :db => 0) $redis.publish(‘my_channel’, ‘content’) $redis.subscribe(‘my_channel’) do |on| on.message do |channel, msg| puts msg end end $redis.publish(‘my_channel.*’, ‘content’) 

PRODUCTION Debian / OSX Heroku Easy (foreman) 

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