Our three years with Elixir

Presentation from the ElixirConf US 2018. Reflections on what makes Elixir special after 3 years of using it.

Transcript

1. mkaszubowski94
2. mkaszubowski94 Our three years with Elixir Maciej Kaszubowski
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4. mkaszubowski94 August 12th, 2015
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6. mkaszubowski94 %{"cowboy": {:hex, :cowboy, "1.0.2"}, "cowlib": {:hex, :cowlib, "1.0.1"}, "decimal": {:hex, :decimal, "1.1.0"}, "ecto": {:hex, :ecto, "0.15.0"}, "fs": {:hex, :fs, "0.9.2"}, "phoenix": {:hex, :phoenix, "0.16.1"}, "phoenix_ecto": {:hex, :phoenix_ecto, "0.9.0"}, "phoenix_html": {:hex, :phoenix_html, "2.1.0"}, "phoenix_live_reload": {:hex, :phoenix_live_reload, "0.6.0"}, "plug": {:hex, :plug, "0.14.0"}, "poison": {:hex, :poison, "1.4.0"}, "poolboy": {:hex, :poolboy, "1.5.1"}, "postgrex": {:hex, :postgrex, "0.9.1"}, "ranch": {:hex, :ranch, "1.1.0"}}
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9. mkaszubowski94 September 6th, 2018
10. mkaszubowski94 Elixir 1.0.5 1.6.1 Erlang/OTP 17 21 Phoenix 0.16.1 1.3.4 Ecto 0.15.0 2.2.7
11. mkaszubowski94 2+ years in production
12. mkaszubowski94 70_000+ Lines of Code
13. mkaszubowski94 Happy Developers
14. mkaszubowski94 What made us stay with Elixir Maciej Kaszubowski
15. mkaszubowski94 Functional programming Massive concurrency Distribution Fault tolerance OTP
16. mkaszubowski94 “The Rails Way”
17. mkaszubowski94 www.youtube.com/watch?v=lDKCSheBc-8
18. mkaszubowski94 We’re not building Phoenix applications
19. mkaszubowski94 View Controller Model
20. mkaszubowski94 App Web interface
21. mkaszubowski94 Web interface
22. mkaszubowski94 Phoenix Contexts
23. mkaszubowski94 Concurrency
24. mkaszubowski94 Massive Concurrency
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31. mkaszubowski94 “We do not have one web-server handling 2 millions sessions. We have 2 million webservers handling one session each.” Joe Armstrong
32. mkaszubowski94 Behaviour, fault tolerance and performance become separate concerns
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37. mkaszubowski94 www.youtube.com/watch?v=5SbWapbXhKo
38. mkaszubowski94 What has changed?
39. mkaszubowski94 Not much, really…
40. mkaszubowski94 We’ve learned more about Elixir
41. mkaszubowski94 But mostly, we’ve learned more about software engineering
42. mkaszubowski94 But mostly, we’ve learned more about our domain logic
43. mkaszubowski94 Elixir is transparent
44. mkaszubowski94 Disadvantages
45. mkaszubowski94 Intensive computations? Machine learning? Hard real-time systems?
46. mkaszubowski94 Massive concurrency Distribution Fault tolerance OTP
47. mkaszubowski94 Having great tools can make us ignorant
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49. mkaszubowski94 AWS Lambda
50. mkaszubowski94 Distributed Data Persistent Actors Cluster Sharding Streaming
51. mkaszubowski94 AWS Lambda
52. mkaszubowski94 Full isolation No shared memory Communication through events Activities scheduled by the runtime AWS Lambda
53. mkaszubowski94 AWS Lambda
54. mkaszubowski94 “It is not once, nor twice, but times without number that the same idea makes its appearance in the world.” Aristotle
55. mkaszubowski94 Software Architecture Domain Driven Design Distributed Systems Algorithms / Data Structures Design Patterns (!) / OO
56. mkaszubowski94 “Just modules and functions…”
57. mkaszubowski94 Software Architecture Domain Driven Design Distributed Systems Algorithms / Data Structures Design Patterns (!) / OO
58. mkaszubowski94 www.youtube.com/watch?v=lDKCSheBc-8
59. mkaszubowski94 We’re not building Phoenix applications
60. mkaszubowski94 We’re not building Elixir applications
61. mkaszubowski94 Let’s not become “Elixir Developers”
62. mkaszubowski94 Thanks! Maciej Kaszubowski
63. mkaszubowski94 • http://haskell-distributed.github.io (Cloud Haskell) • https://dotnet.github.io/orleans/ (Microsoft Orleans) • https://github.com/SpaceTime-IoT/erleans (Orleans for Erlang) • https://doc.akka.io/docs/akka/2.5.4/scala/index.html (Akka) • www.youtube.com/watch?v=5SbWapbXhKo (Solid Ground by Saša Juric) • www.youtube.com/watch?v=lDKCSheBc-8 (Phoenix Is Not Your Application by Lance Halvorsen) Links