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Smart Software Design (SOA Edition)

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Jon Daniel @binarycleric

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chronicbuildfailure.co chronic build failure

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I’m FUNEMPLOYED
 (hire me)

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WARNING

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This talk is still in BETA

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Service Oriented Architecture

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Building Software is Pretty Hard

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SOA is Really Hard (but sometimes easier*)

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Change Your Thought Process

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Think Distributed

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Stop Thinking About Commands

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Start Thinking About Events

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Publish Subscribe

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Idempotency is Important

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Universal Uniqueness

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Single Responsibility Principle

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Don’t Turn Your Services Into Mini-Monoliths

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Monitor All The Things!

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Mean Response Time is Useless

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Median is a Little Better

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95th, 99th and 99.9th percentile

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Real Life Example

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What Could Go Wrong?

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What is Mission Critical?

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Let’s Give it a Shot!

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Cascading Failure

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What breaks when other things break?

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Defend Against Cascading Failure

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Assume Every Integration Can and Will Fail

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How Can We Fail Gracefully?

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Can We Serve Stale Data?

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Can We Report Events Instead of Commanding Services?

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Your Failures Are Your Own

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Plan For Failure and You’ll Achieve Success

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¯\_(ϑ)_/¯
 (because computers)

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Thanks!