Alex Moore alexmoore

## service-checklist.md

      
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                alexmoore
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              Created
              September 27, 2016 20:17
                — forked from acolyer/service-checklist.md
            
              
                Internet Scale Services Checklist
              
          
    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?


## erl_helpers.sh
function list_erlangs() {
  read -ra AvailableErls <<< `ls -l $ERL_HOME | awk '/^d/' | cut -d ' ' -f12-`
  Current=`ls -l $ERL_HOME | awk '/^l/' | sed 's/^l.*-> \(.*\)/\1/'`
  for i in "${AvailableErls[@]}"; do
    if [ $i = $Current ]; then echo "$Current *"; else echo $i; fi
  done
}

function change_current_erlang() {
  Target=$1

## 0. Riak on Raspberry Pi's
This is unsupported by Basho, but you can build Basho's flavor of Erlang and Riak on Raspberry Pis.


## Functional Core, Imperative Shell
http://www.infoq.com/presentations/Simple-Made-Easy
http://www.infoq.com/presentations/integration-tests-scam
http://blog.thecodewhisperer.com/2010/09/14/when-is-it-safe-to-introduce-test-doubles
http://youtu.be/yTkzNHF6rMs
http://pyvideo.org/video/1670/boundaries
http://skillsmatter.com/podcast/ajax-ria/enumerators
http://alistair.cockburn.us/Hexagonal+architecture
http://c2.com/cgi/wiki?PortsAndAdaptersArchitecture
http://www.confreaks.com/videos/977-goruco2012-hexagonal-rails
http://www.confreaks.com/videos/1255-rockymtnruby2012-to-mock-or-not-to-mock
	function list_erlangs() {
	read -ra AvailableErls <<< `ls -l $ERL_HOME \| awk '/^d/' \| cut -d ' ' -f12-`
	Current=`ls -l $ERL_HOME \| awk '/^l/' \| sed 's/^l.-> \(.\)/\1/'`
	for i in "${AvailableErls[@]}"; do
	if [ $i = $Current ]; then echo "$Current *"; else echo $i; fi
	done
	}

	function change_current_erlang() {
	Target=$1
	This is unsupported by Basho, but you can build Basho's flavor of Erlang and Riak on Raspberry Pis.
	http://www.infoq.com/presentations/Simple-Made-Easy
	http://www.infoq.com/presentations/integration-tests-scam
	http://blog.thecodewhisperer.com/2010/09/14/when-is-it-safe-to-introduce-test-doubles
	http://youtu.be/yTkzNHF6rMs
	http://pyvideo.org/video/1670/boundaries
	http://skillsmatter.com/podcast/ajax-ria/enumerators
	http://alistair.cockburn.us/Hexagonal+architecture
	http://c2.com/cgi/wiki?PortsAndAdaptersArchitecture
	http://www.confreaks.com/videos/977-goruco2012-hexagonal-rails
	http://www.confreaks.com/videos/1255-rockymtnruby2012-to-mock-or-not-to-mock