Sessions at RailsConf 2012 about Redis

Tuesday 24th April 2012

• Evented Ruby vs Node.js

  by Jerry Cheung

  While Node.js is the hot new kid on the block, evented libraries like EventMachine for Ruby and Twisted for Python have existed for a long time. When does it make sense to use one over the other? What are the advantages and disadvantages to using node over ruby? In this talk, you will learn how to get the same power of concurrency enjoyed by Node.js while continuing to write in the language you know and love. Topics covered will include pubsub with redis or faye, building evented rack applications, and running evented applications alongside existing Rails apps.

  • Evented Web
  • EventMachine
  • Node.js
  • Redis
  • Ruby

  At 2:30pm to 3:15pm, Tuesday 24th April

  In Salon K, Hilton Austin Downtown

  Coverage video note slide deck slide deck

Wednesday 25th April 2012

• Redis Application Patterns in Rails

  by Obie Fernandez

  Redis is a darling of the NoSQL crowd and for good reasons. It's easy to setup and has blazing fast performance. In this talk, drawn on real production experience and real code straight out of the DueProps codebase, Obie will introduce and demonstrate key Redis application patterns vital to today's Rails developer. Emphasis will be placed on real-world constraints and how to leverage Redis to improve scaling and performance over plain-vanilla ActiveRecord applications.

  Concepts covered:

  • Adding Redis-based flags and other properties to ActiveRecord objects
  • Event tracking with Redis sets
  • Graphing relationships between (User) objects with Redis sets
  • Time-ordered activity feeds with Redis sorted sets
  • Applying security restrictions to display of activity feeds with intersection of Redis sorted sets
  • Aggregating group activity feeds with union of Redis sorted sets
  • Applying Redis sorted sets to scoring and leaderboard programming
  • Integrating Redis with Rspec and Cucumber
  • Debugging tactics for when things go wrong or are unclear
  • NoSQL
  • Redis
  • Ruby on Rails

  At 10:30am to 11:15am, Wednesday 25th April

  In Salon K, Hilton Austin Downtown

  Coverage video slide deck