Introduction to distributed programming with Elixir and nice zombie examples

1. Programming a zombie
@darkofabijan
semaphoreapp.com
renderedtext.com

2. Semaphore
• hosted continuous integration and
deployment
• distributed & semi-fault-tolerant
• runs on 20 dedicated servers
• it’s all Ruby

6. Isolation

7. 1
Body part isolation

8. 2
Body isolation

9. 2
Body isolation

10. Zombie world
Computer World

13. Isolation
Message passing

14. Elixir
BEAM
(EVM)
Erlang

15. streaming APIs
server side events
web sockets
multi-core

16. Ruby / Ruby on Rails
great syntax
a lot of meta-
programming
easy to create DSL

17. BEAM
x few million
half mobile data traffic in the world
99.999+%

18. def Math do
def sum do
receive do
{:sum, a, b} ->
IO.puts(“Sum #{a + b})
sum()
end
end
end
pid = spawn(fn -> Math.sum end)
pid <- {:sum, 2, 3}
=> Sum 5

19. {:sum, 2, 3}
Math.sum
Shell

20. {:sum, 2, 3}
Math.sum
Shell

21. {:sum, 2, 3}
Math.sum
Shell
Novi Sad
Tokyo
pid = spawn(tokyo, fn -> Math.sum end)
pid <- {:sum, 2, 3}

22. OTP
Server
Event
FSM
Supervisor
Application
Leader

23. Books

24. Thank you!
Q&A