Paulius Uza pauliusuza

Cheat Sheet for the FoundationDB 'Hot Cloud Swap' Screencast

Initial Cluster Setup on Digital Ocean

Grab the client and server packages from the FoundationDB website

ansible -i inventory digital_ocean -a "wget https://foundationdb.com/downloads/f-nbxofdxnoxocd/I_accept_the_FoundationDB_Community_License_Agreement/key-value-store/2.0.9/foundationdb-clients_2.0.9-1_amd64.deb https://foundationdb.com/downloads/f-nbxofdxnoxocd/I_accept_the_FoundationDB_Community_License_Agreement/key-value-store/2.0.9/foundationdb-server_2.0.9-1_amd64.deb"

Install the client and server packages

Pub/sub with MongoDB and Node.js

Setup:

$ mongo
> use pubsub
> db.createCollection('messages', { capped: true, size: 100000 })
> db.messages.insert({})

This is now an actual repo:

https://github.com/cowboy/jquery-tiny-pubsub

	with
	dau as (
	-- This part of the query can be pretty much anything.
	-- The only requirement is that it have three columns:
	-- dt, user_id, inc_amt
	-- Where dt is a date and user_id is some unique identifier for a user.
	-- Each dt-user_id pair should be unique in this table.
	-- inc_amt represents the amount of value that this user created on dt.
	-- The most common case is
	-- inc_amt = incremental revenue from the user on dt


	var _ = require('lodash'),
	Heroku = require('heroku-client'),
	heroku = new Heroku({ token: process.env.HEROKU_API_KEY });

	var app = heroku.apps('application-name');
	app.releases().list(function(err, releases) {
	var version = _.max(_.pluck(releases, 'version'));
	console.log("APP_VERSION: " + version);
	process.env.APP_VERSION = version;

	<!doctype html>
	<html>
	<head>
	<meta name="viewport" content="width=device-width">
	<script type="text/javascript" src="jquery-1.8.1.min.js"></script>
	<script type="text/javascript" src="http://www.parsecdn.com/js/parse-1.0.23.min.js"></script>
	<script>
	var SightingObject;
	var db;


	var mongoose = require('mongoose');
	var Schema = mongoose.Schema;
	var assert = require('assert')

	console.log('\n===========');
	console.log(' mongoose version: %s', mongoose.version);
	console.log('========\n\n');

	<!DOCTYPE html>
	<html>
	<head>
	<title>CSS Pulsator</title>
	<link rel="stylesheet" type="text/css" href="style.css" />
	</head>
	<body>
	<div id="pulsor">Pulsate!</div>
	</body>
	</html>