Jrubykaigi 2010
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We discovered Mirah while looking for a way to remedy JRuby spin-up delays on App Engine. Dubious, a simple framework written in Mirah, but following Rails conventions, that provides unprecidented scalability and efficiency.
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Jrubykaigi 2010
- 1. Saturday, August 28, 2010
- 2. Extreme Performance with Mirah and Dubious Build apps that can scale rapidly John Woodell July 28, 2010 2 Saturday, August 28, 2010
- 3. Spin-up time can make scaling “painful” • The most critical issue to be resolved is spin-up time, App Engine scales by adding new application instances. • Even if initialization could happen without affecting users some apps will need to scale instantly. 3 Saturday, August 28, 2010
- 4. Benefits of Mirah on App Engine • Ruby syntax & apparent features + Java type system • Use Java or Ruby when Mirah lacks features you require • The generated Java source can be inspected at any time • Macros and plugins can be written in Ruby or Mirah • New instances always spin-up in about a second 4 Saturday, August 28, 2010
- 5. Working with Dubious • Dubious framework uses familiar Rails conventions • Generate JSONs or work with ERb templates • MirahModel syntax is similar to DataMapper • Developers can create apps entirely in Rails, then refactor URLs that need to scale quickly • Some important features are currently missing, but “you” could have fun contributing them 5 Saturday, August 28, 2010
- 6. Saturday, August 28, 2010
- 7. Mirah apps should look familiar to Rubyists Saturday, August 28, 2010
- 8. Mirah apps can use ERb templates Saturday, August 28, 2010
- 9. The generated Java source can be inspected Saturday, August 28, 2010
- 10. The ERb is transformed into method calls Saturday, August 28, 2010
- 11. Your model definition is very concise Saturday, August 28, 2010
- 12. Code is generated based on properties you define Saturday, August 28, 2010
- 13. All the basic methods you need are generated Saturday, August 28, 2010
- 14. Resources • Blog – http://jruby-appengine.blogspot.com • Presentations – http://speakerrate.com/woodie • Examples Apps – http://rails-annex.appspot.com – http://dubious-demo.appspot.com • Mirah Projects – http://github.com/headius/mirah – http://github.com/mirah/dubious 14 Saturday, August 28, 2010
- 15. Saturday, August 28, 2010