Kurt Sussman neophiliac

Internet Scale Services Checklist

A checklist for designing and developing internet scale services, inspired by James Hamilton's 2007 paper "On Desgining and Deploying Internet-Scale Services."

http://mvdirona.com/jrh/talksandpapers/jamesrh_lisa.pdf

Basic tenets

Does the design expect failures to happen regularly and handle them gracefully?
Have we kept things as simple as possible?

ANNOUNCEMENT

I have moved this over to the Tech Interview Cheat Sheet Repo and has been expanded and even has code challenges you can run and practice against!

\

	class PriorityQueue
	attr_reader :elements

	def initialize
	@elements = [nil]
	end

	def <<(element)
	@elements << element
	bubble_up(@elements.size - 1)

	# Elixir has pipes `\|>`. Let's try to implement those in Ruby.
	#
	# I want to write this:
	#
	# email.body \| RemoveSignature \| HighlightMentions \| :html_safe
	#
	# instead of:
	#
	# HighlightMentions.call(RemoveSignature.call(email.body)).html_safe
	#

	#!/usr/bin/env bash
	if [ $# -eq 0 ]; then
	echo "please supply a servername: bootstrap-server.sh node.example.com"
	exit 1
	fi
	username=`whoami`

	# copy public rsa key to server for root user
	read -r -p "Transfer ssh public keys to server for root? [y/N] " response
	if [[ $response =~ ^([yY][eE][sS]\|[yY])$ ]]; then

	package main

	import (
	"fmt"
	"log"
	"net/http"

	"html/template"

	"github.com/gorilla/sessions"

	# The blog post that started it all: https://neocities.org/blog/the-fcc-is-now-rate-limited
	#
	# Current known FCC address ranges:
	# https://news.ycombinator.com/item?id=7716915
	#
	# Confirm/locate FCC IP ranges with this: http://whois.arin.net/rest/net/NET-165-135-0-0-1/pft
	#
	# In your nginx.conf:

	location / {

	# backend app
	require 'sinatra/base'
	require 'json'
	class UsersController < Sinatra::Base
	get '/users/:id' do
	JSON.dump id: params[:id].to_i, name: "Josh"
	end
	end

	# Simple Recommendation Engine in Ruby
	# Visit: http://otobrglez.opalab.com
	# Author: Oto Brglez <[email protected]>

	class Book < Struct.new(:title)

	def words
	@words \|\|= self.title.gsub(/[a-zA-Z]{3,}/).map(&:downcase).uniq.sort
	end

	'Twas the night before Christmas, when all through the racks
	Not a server was alerting, not even Compaqs.
	The backups were written to tapes with care
	In hopes that later the data would be there.

	The machines were nestled all snug in their sleds
	Whilst visions of vengeance danced in their heads;
	And oncall in his three-wolf and I in my rack.
	Had just settled down for some syn and some ack.