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Ruby Technologies Activating The Development of Kenta Murata ͷ։ൃΛࢧ͑Δ Ruby ͷٕज़ 2012/12/10 Ruby Business Seminar Tuesday, December 11, 12

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@mrkn Tuesday, December 11, 12

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Tuesday, December 11, 12

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In COOKPAD: DevInfra Dept. In Private: CRuby committer Tuesday, December 11, 12

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What is Development of Testing in Tuesday, December 11, 12

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What is Tuesday, December 11, 12

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Tuesday, December 11, 12

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Tuesday, December 11, 12

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20,000K+ users/month 1,300K+ recipes Tuesday, December 11, 12

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Recipe Sharing only? Tuesday, December 11, 12

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Tuesday, December 11, 12

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Sharing Recipes Tuesday, December 11, 12

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Tuesday, December 11, 12

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Tuesday, December 11, 12

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Premium Categories Tuesday, December 11, 12

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Tuesday, December 11, 12

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Recommended Menus Tuesday, December 11, 12

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Tuesday, December 11, 12

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Pro’s Recipe Store Tuesday, December 11, 12

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Deliver Ingredients Tuesday, December 11, 12

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Cooking Schools Search & Reservation Tuesday, December 11, 12

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Sales Information Tuesday, December 11, 12

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Tuesday, December 11, 12

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Tuesday, December 11, 12

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Tuesday, December 11, 12

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User Collaboration Tuesday, December 11, 12

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1. Recipe Sharing 2. Premium Categories 3. Recommended Menus 4. Pro’s Recipe Store 5. Deliver Ingredients 6. Cooking Schools 7. Recipe Request 8. Q & A 9. Everyone’s Cafe 10. Sales Information Tuesday, December 11, 12

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These features are developed in the last half-year Tuesday, December 11, 12

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Ruby and Rails Accelerate Service Development Tuesday, December 11, 12

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How do we develop COOKPAD? Tuesday, December 11, 12

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Development of Tuesday, December 11, 12

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Idea Data Product Learn Measure Build Tuesday, December 11, 12

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Idea Data Product Learn Measure Build Tuesday, December 11, 12

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Idea Data Product Learn Measure Build Tuesday, December 11, 12

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Idea Data Product Learn Measure Build Tuesday, December 11, 12

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Idea Data Product Learn Measure Build Tuesday, December 11, 12

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Idea Data Product Learn Measure Build Tuesday, December 11, 12

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Idea Data Product Learn Measure Build Tuesday, December 11, 12

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Idea Data Product Learn Measure Build Tuesday, December 11, 12

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Idea Data Product Learn Measure Build Tuesday, December 11, 12

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Idea Data Product Learn Measure Build Tuesday, December 11, 12

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Idea Data Product Learn Measure Build Tuesday, December 11, 12

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Talk today Idea Data Product Learn Measure Build Tuesday, December 11, 12

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Talk today Idea Data Product Learn Measure Build Tuesday, December 11, 12

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Talk today Idea Data Product Learn Measure Build Tuesday, December 11, 12

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Talk today Idea Data Product Learn Measure Build Tuesday, December 11, 12

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Idea Data Product Learn Measure Build Tuesday, December 11, 12

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Idea Measure Tuesday, December 11, 12

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Idea Measure Ruby Rails Chanko Sara RSpec Jenkins Capistrano Unicorn Fluentd Tuesday, December 11, 12

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Idea Measure Ruby Rails Chanko Sara RSpec Jenkins Capistrano Unicorn Fluentd Tuesday, December 11, 12

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http://www.flickr.com/photos/june29/3396011694/ Chanko Tuesday, December 11, 12

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Chanko is: Tuesday, December 11, 12

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Chanko is: Plug-in for Rails Tuesday, December 11, 12

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Chanko is: Plug-in for Rails Feature Flipping System Tuesday, December 11, 12

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Chanko is: Plug-in for Rails Feature Flipping System Open Source Tuesday, December 11, 12

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Tuesday, December 11, 12

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http://github.com/cookpad/chanko Tuesday, December 11, 12

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http://github.com/cookpad/chanko_sample Tuesday, December 11, 12

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Building the new feature Tuesday, December 11, 12

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Building the new feature Using topic branch Tuesday, December 11, 12

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Building the new feature Using topic branch Modifying the main code Tuesday, December 11, 12

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Building the new feature Using topic branch Modifying the main code Deploying to staging Tuesday, December 11, 12

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Master branch Tuesday, December 11, 12

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Master branch Topic branch Tuesday, December 11, 12

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Master branch Topic branch Tuesday, December 11, 12

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Master branch Topic branch Tuesday, December 11, 12

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Master branch Topic branch Tuesday, December 11, 12

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Master branch Topic branch Tuesday, December 11, 12

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Master branch Topic branch Tuesday, December 11, 12

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Master branch Topic branch Tuesday, December 11, 12

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Master branch Topic branch Tuesday, December 11, 12

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Master branch Topic branch Tuesday, December 11, 12

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Master branch Topic branch Tuesday, December 11, 12

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Problems: Tuesday, December 11, 12

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Problems: Degrade Stability Tuesday, December 11, 12

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Problems: Degrade Stability Low-Quality Code Tuesday, December 11, 12

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Problems: Degrade Stability Low-Quality Code Slowdown Development Tuesday, December 11, 12

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Requirements: Tuesday, December 11, 12

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Requirements: Service Stability Tuesday, December 11, 12

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Requirements: Service Stability Code Quality Tuesday, December 11, 12

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Requirements: Service Stability Code Quality Fast Development Tuesday, December 11, 12

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http://www.flickr.com/photos/june29/3396011694/ Chanko Tuesday, December 11, 12

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Tuesday, December 11, 12

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http://bit.ly/chanko-railsconf2012 Tuesday, December 11, 12

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In COOKPAD Tuesday, December 11, 12

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10+ Teams In COOKPAD Tuesday, December 11, 12

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10+ Teams 1-3 Developers per team In COOKPAD Tuesday, December 11, 12

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10+ Teams 30-40 Chanko units 1-3 Developers per team In COOKPAD Tuesday, December 11, 12

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Usage Tuesday, December 11, 12

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Time-limited Feature Usage Tuesday, December 11, 12

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Time-limited Feature User-limited Feature Usage Tuesday, December 11, 12

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Time-limited Feature User-limited Feature A/B Testing Usage Tuesday, December 11, 12

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Tuesday, December 11, 12

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Service Stability Code Quality Fast Development Chanko Tuesday, December 11, 12

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Happy ending? (20min should have passed since the beginning) Tuesday, December 11, 12

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Testing in Tuesday, December 11, 12

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Service Stability Code Quality Fast Development Chanko Tuesday, December 11, 12

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For what purpose? Tuesday, December 11, 12

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Idea Data Product Learn Measure Build Tuesday, December 11, 12

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For Users Tuesday, December 11, 12

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10+ Teams 30-40 Chanko units 1-3 Developers per team In COOKPAD Tuesday, December 11, 12

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You can deploy whenever you want the revisions at which the CI was passed Tuesday, December 11, 12

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You can deploy whenever you want the revisions at which the CI was passed Tuesday, December 11, 12

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CI build should be fast Tuesday, December 11, 12

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git push git push CI git build #k build #k+1 Tuesday, December 11, 12

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git push 10min git push CI git build #k build #k+1 Tuesday, December 11, 12

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git push 10min 10min git push CI git build #k build #k+1 Tuesday, December 11, 12

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git push 10min 10min git push CI git This commit can be deployed after 20min build #k build #k+1 Tuesday, December 11, 12

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git push build #k build #k+1 N min N min git push CI git This commit can be deployed after 2N min Tuesday, December 11, 12

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The maximum CI waiting minutes 2N min Prescribed working time 8 hours == 480 min The maximum count of deploy 480 / 2N == 240 / N N : The CI waiting time to deploy 40 times 240 / 40 == 6 min Tuesday, December 11, 12

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The maximum CI waiting minutes 2N min Prescribed working time 8 hours == 480 min The maximum count of deploy 480 / 2N == 240 / N N : The CI waiting time to deploy 40 times 240 / 40 == 6 min Tuesday, December 11, 12

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The maximum CI waiting minutes 2N min Prescribed working time 8 hours == 480 min The maximum count of deploy 480 / 2N == 240 / N N : The CI waiting time to deploy 40 times 240 / 40 == 6 min Tuesday, December 11, 12

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The maximum CI waiting minutes 2N min Prescribed working time 8 hours == 480 min The maximum count of deploy 480 / 2N == 240 / N N : The CI waiting time to deploy 40 times 240 / 40 == 6 min Tuesday, December 11, 12

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Developers should guarantee their changes doesn’t break any tests when they pushes the changes into the master branch Tuesday, December 11, 12

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Requirements: Tuesday, December 11, 12

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Fast CI Requirements: Tuesday, December 11, 12

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Fast CI Fast developer test Requirements: Tuesday, December 11, 12

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Fast CI Fast developer test Accept coincidence of testing Requirements: Tuesday, December 11, 12

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6000 6500 7000 7500 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●●● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 05/01 06/01 07/01 Ti Examples count 6000 6500 7000 7500 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●●● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 05/01 06/01 07/01 Ti Examples count The number of examples in COOKPAD’s spec files Tuesday, December 11, 12

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Fast CI Fast developer test Accept coincidence of testing Requirements: Tuesday, December 11, 12

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Fast CI Fast developer test Accept coincidence of testing Requirements: Scalable test system Tuesday, December 11, 12

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Solution: Tuesday, December 11, 12

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Remote Spec Distributed CI Solution: Tuesday, December 11, 12

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Mechanism of Remote RSpec Tuesday, December 11, 12

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Three Steps: Tuesday, December 11, 12

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Three Steps: RSync code tree Tuesday, December 11, 12

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Three Steps: RSync code tree Prepare middlewares Tuesday, December 11, 12

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Three Steps: RSync code tree Prepare middlewares Run RSpec remotely Tuesday, December 11, 12

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Remote RSpec: Tuesday, December 11, 12

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Remote RSpec: Group spec files Tuesday, December 11, 12

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Remote RSpec: Group spec files Assign these groups to workers Tuesday, December 11, 12

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Remote RSpec: Group spec files Assign these groups to workers Collect results Tuesday, December 11, 12

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To minimize execution time Use running time of each spec file in the execution log Tuesday, December 11, 12

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./spec/models/country_spec.rb:0.239013 ./spec/integration/pr/event_spec.rb:11.48333 ./spec/integration/recipes_spec.rb:159.893117 ./spec/integration/device/info_spec.rb:3.592802 ./spec/libs/symboliclink_check_spec.rb:2.024438 ./spec/controllers/advertisement_module_2_spec.rb:27.125839 ./spec/libs/mail_functions_spec.rb:0.123556 ./spec/models/generic_recipe_spec.rb:0.716866 ./spec/libs/ruby_syntax_spec.rb:18.92995 ./spec/libs/cookpad_logger_spec.rb:0.233645 ./spec/controllers/device/myfolder_controller_spec.rb:7.037313 ./spec/integration/trend_keyword_spec.rb:1.224577 ./spec/models/search_category_recipe_spec.rb:2.82474 ./spec/controllers/hello_controller_spec.rb:0.846888 ./spec/controllers/api_controller_spec.rb:0.936871 ./spec/integration/recipes_hot_notification_spec.rb:27.260698 ./spec/models/diary_mailer_spec.rb:1.156989 (snip) spec_execution_times.log Tuesday, December 11, 12

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Condition Execution time single rspec too long; unmeasurable 8-core parallel_tests over 1 hour 5 workers, each have 6-cores about 15 min Tuesday, December 11, 12

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Tuesday, December 11, 12

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Tuesday, December 11, 12

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$ grep cookpad:spec ci.log (11) cookpad:spec --> 0.020000 0.130000 495.010000 (164.655632) (07) cookpad:spec --> 0.020000 0.120000 493.490000 (166.317008) (03) cookpad:spec --> 0.020000 0.120000 604.060000 (217.101263) (12) cookpad:spec --> 0.020000 0.130000 711.730000 (217.371807) (10) cookpad:spec --> 0.020000 0.130000 550.990000 (224.883867) (08) cookpad:spec --> 0.020000 0.130000 632.330000 (226.134510) (04) cookpad:spec --> 0.010000 0.130000 615.030000 (233.176576) (06) cookpad:spec --> 0.020000 0.120000 592.900000 (232.820875) (01) cookpad:spec --> 0.020000 0.130000 562.510000 (242.002139) (13) cookpad:spec --> 0.020000 0.130000 560.200000 (241.834410) (09) cookpad:spec --> 0.030000 0.120000 750.040000 (268.914216) (00) cookpad:spec --> 0.020000 0.130000 692.820000 (280.803856) (05) cookpad:spec --> 0.020000 0.140000 726.640000 (289.625570) (02) cookpad:spec --> 0.010000 0.130000 679.850000 (437.498087) Tuesday, December 11, 12

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Wrong balancing Tuesday, December 11, 12

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Wrong balancing Group before execution Tuesday, December 11, 12

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Wrong balancing Group before execution Varying runtime condition Tuesday, December 11, 12

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Wrong balancing Group before execution Varying runtime condition RSpec implementation Tuesday, December 11, 12

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Future plan: Tuesday, December 11, 12

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Future plan: Dynamic distribution Tuesday, December 11, 12

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Future plan: Dynamic distribution Producer-consumer pattern Tuesday, December 11, 12

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Future plan: Dynamic distribution Producer-consumer pattern Monkey-patch for RSpec Tuesday, December 11, 12

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Today’s Summary Tuesday, December 11, 12

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Idea Data Product Learn Measure Build Tuesday, December 11, 12

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Idea Measure Ruby Rails Chanko Sara RSpec Jenkins Capistrano Unicorn Fluentd Tuesday, December 11, 12

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Service Stability Code Quality Fast Development Chanko Tuesday, December 11, 12

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Remote Spec Distributed CI Faster Testing Tuesday, December 11, 12

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Future plan: Dynamic distribution Producer-consumer pattern Monkey-patch for RSpec Tuesday, December 11, 12

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Ruby Technologies Activating The Development of Any Questions or Comments? ͷ։ൃΛࢧ͑Δ Ruby ͷٕज़ Tuesday, December 11, 12