Geoffroy Couprie Geal

DEPRECATED

Models	Examples
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Prerequisites:

One or more clients running a UNIX-like OS. Examples are given for Ubuntu 12.04 LTS, although all software components are available for other platforms as well (e.g. OS X). YMMV
A cheap Ubuntu 12.04 VPS with storage. I recommend Backupsy, they offer 250GB storage for $5/month. Ask Google for coupon codes.

Software components used:

a few points :

a reference to a schema is 64 bits (with hashing) or 32 bits if you use a coordination store (like Kafka + Camus does).
- It's not a real waste of space, because you can use this reference for multiple payloads.
field renaming is well supported. In Avro you read your data with not one, but 2 schemas :
- the one that was used to encode the data with (easy, it's around the data as metadata),
- and the one you want to use to read your data.

	# Guide
	# Configure the essential configurations below and do the following:
	#
	# Repository Creation:
	# cap deploy:repository:create
	# git add .
	# git commit -am "initial commit"
	# git push origin master
	#
	# Initial Deployment:

	// https://developer.mozilla.org/en/using_xmlhttprequest

	// http://web.archive.org/web/20071103070418/http://mgran.blogspot.com/2006/08/downloading-binary-streams-with.html
	function getBinary(file){
	var xhr = new XMLHttpRequest();
	xhr.open("GET", file, false);
	xhr.overrideMimeType("text/plain; charset=x-user-defined");
	xhr.send(null);
	return xhr.responseText;
	}

	#!/usr/bin/env sh

	##
	# This is script with usefull tips taken from:
	# https://github.com/mathiasbynens/dotfiles/blob/master/.osx
	#
	# install it:
	# curl -sL https://raw.github.com/gist/2108403/hack.sh \| sh
	#

	Latency Comparison Numbers (~2012)
	----------------------------------
	L1 cache reference 0.5 ns
	Branch mispredict 5 ns
	L2 cache reference 7 ns 14x L1 cache
	Mutex lock/unlock 25 ns
	Main memory reference 100 ns 20x L2 cache, 200x L1 cache
	Compress 1K bytes with Zippy 3,000 ns 3 us
	Send 1K bytes over 1 Gbps network 10,000 ns 10 us
	Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD


	/// Phantom type for step 1.
	pub enum Step1 {}
	/// Phantom type for step 2.
	pub enum Step2 {}

	/// Contains data we set step by step.
	pub struct Data<'a> {
	/// 'a' is set in the first step.
	a: Option<int>,

	#!/usr/bin/env python

	import sys
	import gmpy

	import curve25519

	from struct import pack
	from hashlib import sha256
	from binascii import hexlify, unhexlify