jamesmaidment

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?

jamesmaidment

The types are L (Listeners), F (Frontends), B (Backends), and
S (Servers).

  0. pxname [LFBS]: proxy name
  1. svname [LFBS]: service name (FRONTEND for frontend, BACKEND for backend,
     any name for server/listener)
  2. qcur [..BS]: current queued requests. For the backend this reports the
     number queued without a server assigned.
  3. qmax [..BS]: max value of qcur
  4. scur [LFBS]: current sessions

jamesmaidment

jamesmaidment

# 0 is too far from ` ;)
set -g base-index 1

# Automatically set window title
set-window-option -g automatic-rename on
set-option -g set-titles on

#set -g default-terminal screen-256color
set -g status-keys vi
set -g history-limit 10000

jamesmaidment

Keybase proof

I hereby claim:

• I am jamesmaidment on github.
• I am jamesmaidment (https://keybase.io/jamesmaidment) on keybase.
• I have a public key whose fingerprint is 33EC FDE7 7FED B3A5 B4FA EF87 E972 B314 4649 8E86

To claim this, I am signing this object:

jamesmaidment

#!/usr/bin/env python
# Adapted from Mark Mandel's implementation
# https://github.com/ansible/ansible/blob/devel/plugins/inventory/vagrant.py
import argparse
import json
import paramiko
import subprocess
import sys

jamesmaidment

sudo du -x / | sort -n | tail -40

jamesmaidment

docker rmi `docker images | awk '{ print $3; }'`