Scaling an App Engine with Ruby and Duby

on YouTube ↗42m

" summary

Concrete claims and demos: App Engine runs Ruby on JRuby with Rack/Sinatra and DataMapper, a Sinatra guestbook deploys and works, and a live Presidential Q&A handles a 700 QPS spike without preprovisioning. Tooling details: gem-based SDK, bundler, AppEngine Java APIs, Mail/XMPP/Images APIs, and DataStore no SQL joins (schema-less, indexes only). Performance: cold start is ~10s for simple apps; Duby compiles Ruby-like code to Java and GWT so Duby compiles to Java/GWT for subsecond servlets. Some C-extensions need Java ports; Rails 3 path discussed.

AI-written summary · about

" chapters (8)

1. 0:00Start
2. 1:41App Engine Architecture
3. 5:32Small & Modular Frameworks
4. 7:39App Engine Gems
5. 9:00App Engine JRuby APIs
6. 10:48Simple XMPP Rack App
7. 25:54A Simple Duby App
8. 37:43Resources

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