scar86

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

1. Clarify and agree on the scope of the system

• User cases (description of sequences of events that, taken together, lead to a system doing something useful)
  • Who is going to use it?
  • How are they going to use it?

scar86

#!/usr/bin/env python
import socket
import sys 

if len(sys.argv) != 3:
    print "Usage: %s host:port destfile.jpg" % sys.argv[0]
    sys.exit(1)

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
host, port = sys.argv[1].split(':')