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OTP-NOTES.md

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OTP-NOTES

Notes on my personal study for OTP architecture

OTP Patterns

  • Process
  • GenServer
  • Tasks
  • Agents
  • Supervisor
  • Application
  • GenStage
  • GenFlow

Process

  • An isolated lightweight thread of execution abstraction.
  • Communication is made by message passing using send and receive
  • Every Process owns a mail box, on which messages are queued and serialized
  • Failure can be isolated (spawn) or propagated through links (spawn_link)

Tasks

  • A Process that executes some single... task (duh!), then quits
  • Task.start/1 and Task.start_link/1
  • Task.async/1 and Task.await/1

GenStage

  • It is a "specification and computational flow for Elixir"
  • Provides a way to define a pipeline of work

Application

  • A component that can be started and stopped as a unit
  • Can also be reused in other systems.