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dRuby 20th anniversary hands-on workshop @m_seki / seki@ruby-lang.org

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@m_seki Ruby committer Author of ERB, dRuby, Rinda http://www.druby.org/fukuoka2019.pdf

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What is dRuby Distributed Object System Can invoke methods in different process Can send objects between process Pure Ruby http://www.druby.org/fukuoka2019.pdf

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দߐͷϫʔΫγϣοϓͷ࣭໰ dRuby http://www.druby.org/fukuoka2019.pdf

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Goal of this workshop dRuby http://www.druby.org/fukuoka2019.pdf Feel what dRuby is. For details, read the book.

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1999 [ruby-list:15406] 1st dRuby http://www.druby.org/fukuoka2019.pdf

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1st dRuby on T-shirts suzuri.jp/m_seki

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Ask them questions in English

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2005 - ·ͩॳ࡮Γങ͑·͢ http://www.druby.org/fukuoka2019.pdf dRuby ʹΑΔ ؔকढ़ஶ ෼ࢄ ɾ Web ϓϩάϥϛϯά First printing from 2005 (Still available)

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2012 (-2014 ઈ൛) http://www.druby.org/fukuoka2019.pdf Publication from 2012 (Become out of print in 2014)

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΋ͬͱΘ͔Γ΍͘͢΄Ίͯʂ http://www.druby.org/fukuoka2019.pdf Praise it more directly, please!

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dRuby͸ͳʹʹ࢖͏ͷʁ ... http://www.druby.org/fukuoka2019.pdf

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Twitterͷ৔߹ http://www.druby.org/fukuoka2019.pdf In case of Twitter

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Concurrency ?? http://www.druby.org/fukuoka2019.pdf It is very easy to use up multi-core

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Demo @drbrain Mandelbrot set 8core http://www.druby.org/fukuoka2019.pdf

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Agenda Hello, World Key value store Queue 4, 5 http://www.druby.org/fukuoka2019.pdf 4. Docker, 5. Docker and Ring are omitted.

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1. Hello, World Setup dRuby Invoke a method in different process http://www.druby.org/fukuoka2019.pdf

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1. Hello, World http://www.druby.org/fukuoka2019.pdf require 'drb' class Hello def greeting puts('Hello, World.') end end uri = 'druby://localhost:54000' DRb.start_service(uri, Hello.new) sleep require 'drb' DRb.start_service uri = 'druby://localhost:54000' it = DRbObject.new_with_uri(uri) it.greeting ← greeting

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2. Key value store KVS arguments return value http://www.druby.org/fukuoka2019.pdf

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2. Key value store http://www.druby.org/fukuoka2019.pdf KVS irb irb ● "greeting" ● "hello, world." ● "greeting" ● "hello, world."

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3. Queue SizedQueue full/empty http://www.druby.org/fukuoka2019.pdf Synchronize process using thread synchronization mechanism

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OOPARTS http://www.druby.org/fukuoka2019.pdf I was just reminded of dRuby's OOPARTS-ness

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OOPARTS http://www.druby.org/fukuoka2019.pdf

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·ͱΊ dRuby http://www.druby.org/fukuoka2019.pdf Conclusion Do you feel what dRuby is? For details, read the book.