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Building Composable Services

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Avatar for Noah Kantrowitz Noah Kantrowitz
July 20, 2014
Technology
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Building Composable Services

Avatar for Noah Kantrowitz

Noah Kantrowitz

July 20, 2014
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Transcript

  1. Building Composable Services Noah Kantrowitz

  2. What? Why? How? Perils? Press Start

  3. What? World 1-1

  4. What is a Function?

  5. f(x, y) = z

  6. What is Idempotence?

  7. f(x) = f(f(x))

  8. What is Composable?

  9. f(x) g(x) f(g(x))

  10. req_user(x) user_id(x) user_id(req_user(x))

  11. post('http://login') get('http://search')

  12. Why? World 1-2

  13. Availability

  14. Scaling

  15. Testing

  16. Logistics

  17. How? World 1-3

  18. Frameworks Storage Rich Data Discovery Resilience Containers Level Up Select

    a Skill

  19. µ-frameworks

  20. Flask (Python) Sinatra (Ruby) Express (JavaScript)

  21. ZeroMQ nanomsg ProtoBufs Cap'nProto

  22. Data Storage (aka state)

  23. AP Database

  24. Cache is the enemy

  25. Rich Data {id: me, cart: http...}

  26. Hypermedia APIs

  27. Service Discovery

  28. Self-Organization

  29. DNS nslookup('login')

  30. ZooKeeper CP Database

  31. Etcd Serf Consul Archaius

  32. Resilience

  33. Timeouts Idempotent Retries

  34. post('chpw', nonce: 314)

  35. Any service can be down

  36. Async Messaging Queues

  37. AMQP Kafka

  38. Containers

  39. Less RAM Less Problems

  40. LXC Jails Zones Docker/Mesos

  41. Security Isolation

  42. Immutable Deployment

  43. Logical Boundaries

  44. Perils? World 1-4

  45. Cascade Failures

  46. Poor Visibility

  47. Health & Metrics Central Logging Dashboards

  48. Complex Deployments

  49. Minimalist Self-organizing Fault-tolerant

  50. Thank You

  51. Noah Kantrowitz @kantrn coderanger.net Questions?