Alex Rasmussen alexras

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?

Keybase proof

I hereby claim:

I am alexras on github.
I am alexras (https://keybase.io/alexras) on keybase.
I have a public key whose fingerprint is B25D 71A4 8CDE 1333 47BE 04A1 BC0D D264 4980 B3FF

To claim this, I am signing this object:

	#!/usr/bin/env python3

	"""
	Tested on a Raspberry Pi 3b+ running Raspbian 11 with i2c enabled via raspi-config, Python 3.9.2 and RPLCD 1.3.0.

	Display under test is an HD44780 character LCD from Adafruit (https://www.adafruit.com/product/198)
	soldered to an i2c backpack (https://www.adafruit.com/product/292). Display's i2c address located with `i2cdetect -y 1`.
	"""

	from RPLCD import i2c

	#!/bin/bash

	start_date=2019-10-01
	end_date=2019-10-31

	while [ "$start_date" != 2017-10-01 ]
	do
	echo $start_date $end_date
	start_date=$(gdate -I -d "$start_date - 1 month")
	end_date=$(gdate -I -d "$start_date + 1 month - 1 day")

	#!/usr/bin/env python

	import pandas as pd

	import csv
	import sys

	sas = pd.read_sas(sys.argv[1])

	with open(sys.argv[1] + '.csv', 'w+') as fp:

	#!/bin/bash

	if [ $# -ne 1 ]
	then
	echo "upload-certificate-to-aws.sh <domain name>"
	exit 1
	fi

	DOMAIN_NAME=$1

	#!/bin/bash

	# Assumes you're running in a virtualenv with
	# https://github.com/dlapiduz/certbot-s3front installed

	function update_cert
	{
	BUCKET_NAME=$1
	DOMAIN_NAME=$2
	DISTRIBUTION_ID=$3

	#!/usr/bin/env python

	import sys

	with open(sys.argv[1], 'rb') as in_fp:
	in_fp.seek(0x20000)

	with open('lsdj.gb.patched', 'wb') as out_fp:
	out_fp.write(bytearray([0xff] * 0x20000))
	out_fp.write(in_fp.read(21 * (0x4000)))

	#!/usr/bin/env python

	'''
	The association between a snapshot and its corresponding AMI and device name is tedious to extract by hand.

	This script names all snapshots "<AMI name> (<AMI id>) <device name>", which makes the associations much easier
	to see. It also makes it easy to find "orphaned" snapshots, i.e. those that aren't associated with extant AMIs.
	'''

	import boto3

	#!/usr/bin/env python

	import collections
	import fileinput
	import operator
	import sys

	user = None