Distributed system in Elixir
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This document discusses using Erlang/OTP and Elixir for distributed systems. It provides an overview of Erlang/OTP, including its development history and key features like the actor model and OTP behaviors. It also discusses Elixir and how it is built on Erlang/OTP. The document explores how Erlang allows building distributed systems through clustering nodes and messaging between actors on different nodes. It discusses how distributed systems can improve performance through scaling and high availability through fault tolerance and resilience. It wraps up by recommending resources to learn more about Erlang/OTP and Elixir.
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Distributed system in Elixir
- 1. ELIXIR를 이용한 분산시스템 HARU CONFERENCE
- 2. OVERVIEW ▸ Erlang/OTP ▸ Elixir ▸ Distributed systems ▸ Wrapping up
- 3. ERALNG/OTP
- 5. 1986 1998 2016 Ericsson 개발 오픈소스화 Erlang OTP 19.x 1995 Java
- 6. SWITCH SWITCH http://stackoverflow.com/questions/1636455/where-is-erlang-used-and-why/1637137#1637137
- 8. SERVER SERVER http://stackoverflow.com/questions/1636455/where-is-erlang-used-and-why/1637137#1637137
- 9. ERLANG/OTP ▸ Functional language ▸ Immutable variables ▸ Strong, dynamic typing ▸ Actor model ▸ OTP ▸ Behavior
- 12. ACTOR MODEL Actor = Lightweight Process + Data + Code ACTOR CODE DATA PROCESS
- 13. ACTOR MODEL ACTOR CODE DATA PROCESS ACTOR CODE DATA PROCESS message message queuemessage queue
- 14. ACTOR MODEL ACTOR CODE DATA PROCESS message queue message
- 15. ACTOR MODEL ACTOR CODE DATA PROCESS message ACTOR CODE DATA PROCESS message
- 16. ACTOR MODEL LIFE CYCLE INITIALIZE TERMINATE RECEIVE-EVALUATE LOOP Designing for Scalability with Erlang/OTP start stop
- 17. ACTOR MODEL https://viethip.com/category/erlang/ process process process ERLANG VM GARBAGE COLLECTOR
- 18. ACTOR MODEL
- 21. OTP-BEHAVIOR ▸ GenServer ▸ Supervisor ▸ GenEvent ▸ GenFsm ▸ GenStatem
- 22. OTP-BEHAVIOR ▸ GenServer ▸ Supervisor ▸ GenEvent ▸ GenStatem
- 25. SUPERVISOR ACTOR ACTOR WORKER SUPERVISOR ACTOR ACTOR ACTOR SUPERVISOR http://erlang.org/doc/design_principles/gen_server_concepts.html SUPERVISION TREE
- 26. “Erlang was designed for writing concurrent programs that run forever.” A History of Erlang - Joe Amstrong
- 27. ELIXIR
- 28. 2012 2016 José Valim 개발 Elixir 1.3.x
- 29. ELIXIR ▸ Functional language ▸ Immutable variables ▸ Strong, dynamic typing ▸ Actor model
- 31. ELIXIR ▸ Support tools ▸ ExUnit - Unit test ▸ Mix - Build tool ▸ Standard library ▸ Metaprogramming ▸ Ecosystem ▸ Hex - Package management ▸ Phoenix - Web framework
- 33. “A distributed system is one in which the failure of a computer you didn't even know existed can render your own computer unusable” Leslie Lamport
- 34. ERLANG CLUSTER NODE A distributed Erlang system consists of a number of Erlang runtime systems communicating with each other. Each such runtime system is called a node.
- 36. ERLANG CLUSTER NODE NODE ACTOR ACTOR message
- 38. WHY DISTRIBUTED SYSTEMS? ▸ Enhanced Performance ▸ Higher Availability
- 39. PERFORMANCE ▸ Latency ▸ Throughput ▸ Computing power
- 41. PERFORMANCE CLIENT BUSINESS NODE LOADBALANCER ENDPOINT NODE ENDPOINT NODE BUSINESS NODE
- 42. PERFORMANCE BUSINESS NODE ENDPOINT NODE PAYMENT GROUP BUSINESS NODE BUSINESS NODE LOGIN GROUP BUSINESS NODE
- 43. PERFORMANCE BUSINESS NODE ENDPOINT NODE PAYMENT GROUP BUSINESS NODE BUSINESS NODE LOGIN GROUP BUSINESS NODE Stateless
- 44. PERFORMANCE CLIENT BUSINESS NODE LOADBALANCER ENDPOINT NODE ENDPOINT NODE BUSINESS NODE CACHE STATEFUL #1
- 45. PERFORMANCE CLIENT BUSINESS NODE LOADBALANCER ENDPOINT NODE ENDPOINT NODE BUSINESS NODE CACHE STATEFUL #1
- 46. PERFORMANCE BUSINESS NODE + LOCAL MEMORY LOADBALANCER ENDPOINT NODE ENDPOINT NODE STATEFUL #2 BUSINESS NODE + LOCAL MEMORY CLIENT
- 47. PERFORMANCE CLIENT#1 BUSINESS NODE + LOCAL MEMORY LOADBALANCER ENDPOINT NODE ENDPOINT NODE CLIENT#2 STATEFUL #2 BUSINESS NODE + LOCAL MEMORY {session : client#1} {session : client#2}
- 48. PERFORMANCE BUSINESS NODE + LOCAL MEMORY LOADBALANCER ENDPOINT NODE ENDPOINT NODE CLIENT#2 STATEFUL #2 BUSINESS NODE + LOCAL MEMORY {session : client#1} {session : client#2}
- 51. PERFORMANCE STATEFUL #2 NODE VNODE1 VNODE2 NODE VNODE3 VNODE4 NODE VNODE5 VNODE6 … hash(session_id) = 1 https://www.youtube.com/watch?v=sYYOLaJ-VDQ
- 52. PERFORMANCE Designing for Scalability with Erlang/OTP
- 56. PERFORMANCE CLIENT BUSINESS NODE LOADBALANCER ENDPOINT NODE ENDPOINT NODE BUSINESS NODE EXTERNAL SERVICEEXTERNAL SERVICE
- 57. PERFORMANCE LOAD REGULATION AND BACKPRESSURE
- 58. PERFORMANCE ENDPOINT NODE BUSINESS NODE EXTERNAL SERVICEEXTERNAL SERVICE BACKPRESSURE LOAD REGULATION ENDPOINT NODE BUSINESS NODE BACKPRESSURE LOAD REGULATION CLIENTS
- 59. AVAILABILITY ▸ Fault Tolerance ▸ Resilience ▸ Reliability
- 60. AVAILABILITY FAULT TOLERANCE CLIENT BUSINESS NODE ENDPOINT NODE CLIENT BUSINESS NODE ENDPOINT NODE error error
- 61. AVAILABILITY FAULT TOLERANCE NODE NODE ACTOR ACTOR asynchronous request
- 62. AVAILABILITY FAULT TOLERANCE NODE NODE ACTOR ACTOR timeout
- 63. BUSINESS NODE ENDPOINT NODE PAYMENT GROUP BUSINESS NODE BUSINESS NODE LOGIN GROUP BUSINESS NODE AVAILABILITY RESILIENCE - NODE
- 64. BUSINESS NODE ENDPOINT NODE PAYMENT GROUP BUSINESS NODE BUSINESS NODE LOGIN GROUP BUSINESS NODE AVAILABILITY RESILIENCE - NODE
- 65. PAYMENT GROUP ENDPOINT NODE BUSINESS NODE BUSINESS NODE LOGIN GROUP BUSINESS NODE AVAILABILITY RESILIENCE - NODE
- 66. BUSINESS NODE ENDPOINT NODE PAYMENT GROUP BUSINESS NODE BUSINESS NODE LOGIN GROUP BUSINESS NODE AVAILABILITY RESILIENCE - NODE
- 69. ACTOR ACTOR ACTOR SUPERVISOR AVAILABILITY RESILIENCE - ACTOR ACTOR
- 73. WRAPPING UP
- 74. NO SILVER BULLET
- 77. Erlang/Elixir Korea User Group https://www.facebook.com/groups/elixir.korea/
- 78. REFERENCES ▸ Books ▸ Designing for Scalability with Erlang/OTP ▸ Programming Elixir 1.3 Reliability ▸ The_Little_Elixir_&_OTP_Guidebook ▸ Videos ▸ Experimenting with Superpowered Web Services: Phoenix on Riak_Core https://www.youtube.com/watch?v=sYYOLaJ-VDQ ▸ Erlang Factory SF 2016 - Concurrency + Distribution = Scalability + Availability, a Journey Architecting Erlang Systems https://www.youtube.com/watch?v=_IZMQMuphfo
- 79. THANK YOU…