Upgrade to Pro — share decks privately, control downloads, hide ads and more …
Sign up for free

Stateful Apps with OTP

Sponsored · SiteGround - Reliable hosting with speed, security, and support you can count on. →
Avatar for Maciej Kaszubowski Maciej Kaszubowski
April 20, 2017
Programming
130
0

Stateful Apps with OTP

Avatar for Maciej Kaszubowski

Maciej Kaszubowski

April 20, 2017

More Decks by Maciej Kaszubowski

See All by Maciej Kaszubowski
Error-free Elixir
Avatar for Maciej Kaszubowski mkaszubowski
0
480
Modular Design in Elixir (ElixirConf EU 2019)
Avatar for Maciej Kaszubowski mkaszubowski
2
940
The Big Ball of Nouns
Avatar for Maciej Kaszubowski mkaszubowski
0
170
Modular Design in Elixir
Avatar for Maciej Kaszubowski mkaszubowski
1
430
Our three years with Elixir
Avatar for Maciej Kaszubowski mkaszubowski
0
320
Concurrency Basics for Elixir
Avatar for Maciej Kaszubowski mkaszubowski
0
180
Distributed Elixir
Avatar for Maciej Kaszubowski mkaszubowski
0
220
Software Architecture
Avatar for Maciej Kaszubowski mkaszubowski
0
180
Let it crash - fault tolerance in Elixir/OTP
Avatar for Maciej Kaszubowski mkaszubowski
0
560

Other Decks in Programming

See All in Programming
PumaからFalconに移行したRailsアプリケーションでの実践
Avatar for Hayato OKUMOTO falcon8823
0
190
半永久的に提供し続けられるプライベートクラウドを目指して ― 利用者の認知負荷を抑えるAPI抽象化とハードウェア世代交代の基盤設計
Avatar for Tomofumi Kondo tomokon
0
510
全ての永続トークンを、生まれる前に消し去りたい！
Avatar for sylph01 sylph01
2
1k
Rでドレミ/Do-Re-Mi_with_R
Avatar for florets1 florets1
0
130
Verilogで学ぶCPU自作入門
Avatar for uyuki uyuki234
8
4.2k
Railsバージョンを4倍にした話
Avatar for OPTiM optim
0
470
Web Framework Benchmark Battle 2026, Any%
Avatar for Akira Matsuda a_matsuda
2
2.6k
[2026-09-26]空論ジェネリックプロセス～テスト資産とAIで紡ぐ、再現可能なパフォーマンスチューニングの話～
Avatar for tosite tosite
0
270
JAWS-UG 東京支部が始める、JAWS-UG支部コラボ / JAWS-UG lunchtime LT Collaboration
Avatar for y-ohgi y0hgi
0
280
Atomic Design, Enforced: Scaling Mobile Design Systems (next.app devCon / droidCon Berlin 2026)
Avatar for Stelios Frantzeskakis steliosf
PRO
0
170
コードレビューのボトルネックを"する側"と"される側"の両面から解消する
Avatar for yub0n yub0n
2
1.6k
Jetpack Compose Mechanisms
Avatar for Jaewoong skydoves
3
830

Featured

See All Featured
The SEO identity crisis: Don't let AI make you average
Avatar for Varn varn
0
590
Fantastic passwords and where to find them - at NoRuKo
Avatar for Phil Nash philnash
53
4k
Code Review Best Practice
Avatar for Trisha Gee trishagee
74
20k
End of SEO as We Know It (SMX Advanced Version)
Avatar for Michael King ipullrank
3
4.4k
RailsConf & Balkan Ruby 2019: The Past, Present, and Future of Rails at GitHub
Avatar for Eileen M. Uchitelle eileencodes
141
35k
ラッコキーワード サービス紹介資料
Avatar for ラッコ株式会社 rakko
2
5.4M
SEOcharity - Dark patterns in SEO and UX: How to avoid them and build a more ethical web
Avatar for Sara Fernández Carmona sarafernandez
0
300
Visualizing Your Data: Incorporating Mongo into Loggly Infrastructure
Avatar for mongodb mongodb
50
10k
HDC tutorial
Avatar for Michiel Stock michielstock
2
960
Navigating Algorithm Shifts & AI Overviews - #SMXNext
Avatar for Aleyda Solis aleyda
1
1.7k
Chasing Engaging Ingredients in Design
Avatar for Sebastian Deterding codingconduct
0
370
How to Get Subject Matter Experts Bought In and Actively Contributing to SEO & PR Initiatives.
Avatar for Liv Day livdayseo
0
220

Transcript

  1. Stateful Apps with OTP Maciej Kaszubowski

  2. Realtime Apps with OTP Maciej Kaszubowski

  3. Background

  4. Http Server Client

  5. Architecture Server Mobile Mobile Kurento Mobile Websocket Websocket & REST

    WebRTC

  6. Challenges

  7. Async communication with Kurento

  8. Async communication with Clients

  9. Handling Concurrent Calls

  10. Deploys, migrations & Restarts

  11. A lot can go wrong

  12. A lot can go wrong & Errors are dangerous

  13. How to deal with this?

  14. init callback

  15. init callback

  16. init callback

  17. init callback

  18. init callback

  19. init callback

  20. Dealing with failures

  21. RoomServer

  22. RoomServer

  23. Let it FAIL

  24. Room Supervisor RoomServer

  25. Room Supervisor RoomServer

  26. Room Supervisor RoomServer

  27. After the restart, the state is gone

  28. Room Supervisor BackupServer RoomServer

  29. None

  30. Room Supervisor BackupServer RoomServer

  31. None
  32. None

  33. Multiple calls

  34. Room Supervisor BackupServer RoomServer

  35. Common Room Supervisor Room Supervisor Backup Server Room Server Room

    Supervisor Backup Server Room Server

  36. Common Room Supervisor Room Supervisor Backup Server Room Server Room

    Supervisor Backup Server Room Server

  37. Common Room Supervisor Room Supervisor Backup Server Room Server Room

    Supervisor Backup Server Room Server

  38. Common Room Supervisor Room Supervisor Backup Server Room Server

  39. PubSub

  40. Status Updates Server Mobile Join Mobile Room status

  41. MyApp.Endpoint.broadcast( “room_id”, “update_status”, status )

  42. apps/ | |—— domain/ |—— web/

  43. Status Updates Server Mobile Mobile Subscribe Subscribe

  44. Status Updates Server Mobile Mobile Join

  45. Status Updates Server Mobile Mobile Status update Status update

  46. Status Updates

  47. Status Updates

  48. Status Updates

  49. Status Updates

  50. Status Updates

  51. Status Updates

  52. History

  53. History Server Call History Subscribe Status update

  54. History

  55. History

  56. History

  57. Conclusions

  58. Simpler system

  59. Testing is easy

  60. Changes are easy

  61. Great performance

  62. We should learn from the Erlang community

  63. A lot of fun!

  64. Thanks!