How to build truly scalable Rails apps

WebスタートアップにやさしいRailsの育て方
RubyKaigi2009LT
松本一輝 / Kazuki MATSUMOTO
CTO,Lang-8,Inc.

Language Exchange SNSLang-8

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How to scale Rails apps by using clouds

The bottleneck of Rails apps
=>RDB

RDB:The most serious bottleneck of web apps
Tuning and Optimizations
Replication, Clustering
Horizonal split, Vertical split

Clouds

Railsin HaaS doesn’t scale

Throw out ActiveRecord.
Use Cloud DB.
（ex. SimpleDB, GAE/BigTable…）

What is it like to build an Rails app truly built on Cloud DB?
Cloud DB
Rails
Wrapper
Clients
REST
over HTTP

Need Tons of Caching!
Cloud DB
Rails
Wrapper
Clients
REST
over HTTP
Memcache
Pool

Now under testing in Lang-8
Rails
MySQL
Active
Resource
Clients
REST
I/F
REST
over HTTP
Memcache
Pool

The Goal:
Find a way to build Rails apps stand only on cloud db.
=>Truly scalable Rails apps

ご清聴ありがとうございました!
Blog: http://d.hatena.ne.jp/kazuk_i/
開発者募集中！

by Kazuki MATSUMOTO on Jul 17, 2009