EventMachine

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Brief introduction into EventMachine by Jonathan Weiss presented at RailsCamp 4 in Cologne (03.07.2010)

Brief introduction into EventMachine by Jonathan Weiss presented at RailsCamp 4 in Cologne (03.07.2010)

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Transcript

  • 1. EventMachine Yes, that’s NodeJS in Ruby Jonathan Weiss 02.07.2010
  • 2. EventMachine „Event-driven I/O using the reactor pattern“ http://rubyeventmachine.com/ 2
  • 3. Goals Scalable and performant but low-level I/O library API that removes threaded complexety 3
  • 4. Install $ sudo gem install eventmachine Works with Ruby, Rubinius, and JRuby 4
  • 5. Use EventMachine $ sudo gem install eventmachine Works with Ruby, Rubinius, and JRuby 5
  • 6. Echo Server $ sudo gem install eventmachine Works with Ruby, Rubinius, and JRuby 6
  • 7. Low Level HTTP Client $ sudo gem install eventmachine Works with Ruby, Rubinius, and JRuby 7
  • 8. EM::HttpRequest $ sudo gem install eventmachine Works with Ruby, Rubinius, and JRuby 8
  • 9. Simple Timer $ sudo gem install eventmachine Works with Ruby, Rubinius, and JRuby 9
  • 10. Simple Timer $ sudo gem install eventmachine Works with Ruby, Rubinius, and JRuby 10
  • 11. Protocol Support TCP (+ SSL) FileWatcher HTTP(s) / WebSocket Timer Memcached PeriodicTimer SASLauth ProcessWatch Postgres3 SpawnedProcess SMTP Queue Sock4 Stomp 11
  • 12. Higher Level APIs on top AMQP Nanite MySQL DNS Redis MongoDB HTTPRequest WebSocket Amazon S3 12
  • 13. Happening: S3 + EventMachine $ sudo gem install eventmachine Works with Ruby, Rubinius, and JRuby 13
  • 14. Why you want async: Uploading 100 x 2 MB files: RightAWS vs. Happening 10min vs. 5:40min 14
  • 15. EventMachine vs. NodeJS EventMachine NodeJS Engine Ruby V8 Available Libraries All Ruby libs, gems, … Only NodeJS libs Possibility to block YES NO Coding Style Callbacks, Callbacks Procedural with fibers 15
  • 16. EM::Synchrony – 1.9 Fibers $ sudo gem install eventmachine Works with Ruby, Rubinius, and JRuby 16
  • 17. Q&A Peritor GmbH Blücherstr. 22, Hof III Aufgang 6 10961 Berlin Tel.: +49 (0)30 69 20 09 84 0 Fax: +49 (0)30 69 20 09 84 9 Internet: www.peritor.com E-Mail: info@peritor.com © Peritor GmbH - Alle Rechte vorbehalten