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@kastner & @gmail.com Metamorphosis How We Went From Fear to Fun

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Billions of Pageviews Each Month

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10,000 Production Deployments in 2011

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Optimization

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Optimization Fear

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Optimization Fear Feedback Loops

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Optimization

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Sad Engineers are Bad Engineers

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Communication

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Mean Time Between Failures

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Mean Time To Repair

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Being Dumb

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Commit to Master Deploy from HEAD

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Branching in Code

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FEAR

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Trust

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“People who don't take risks generally make about two big mistakes a year.” – Peter Drucker

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People who do take risks generally make about two big mistakes a year.” – Peter Drucker

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Open By Default

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“Process is an embedded reaction to prior stupidity” – Clay Shirky

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November code-freeze

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November code-freeze 949 Deploys

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Culture > Code

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Constant Improvement

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Text "My strategy has always been: be wrong as fast as we can, Which basically means, we're gonna screw up, … Let's not be afraid of that." – Andrew Stanton

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StatsD

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StatsD.increment('registrations')

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Vertical Line Technology™

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FIX IT!

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Blameless Post-mortems

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Game-day Exercises

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6 Change-related incidents in 2010

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Know what you’re optimizing for

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A little fear is good. Too much is deadly

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10 Iterate 20 GOTO 10

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Thank you