Masatoshi SEKI (

On August 31st, 2000, A slightly unusual Wiki was introduced on ruby-list. It was [ruby-list:24661] The first practical dRuby application, RWiki.

RWiki is strongly opinionated software. RWiki was introduced as an demonstration of the usage of various Ruby libraries, but its unique implementation also reflects the author's opinion. The most significant feature of RWiki is that it is an in-memory application that contains both the database and objects all in a single process. Which is rather reminiscent of some recent buzzwords: NoSQL and In-Memory.

A couple days after this presentation, RWiki will celebrate its tenth year anniversary. I am currently running several active RWiki sites. These sites have over 30 thousand pages with a process size exceeding 1Gb. In this presentation, I will tell a little story of how these RWiki sites achieved scale and volume.

Spoken Language: ja

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RubyKaigi 2010


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    So that's what 42 was the answer to! ActiveRecord::Base.ancestors.count

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