akotlov

HTTP Streaming (or Chunked vs Store & Forward)

The standard way of understanding the HTTP protocol is via the request reply pattern. Each HTTP transaction consists of a finitely bounded HTTP request and a finitely bounded HTTP response.

However it's also possible for both parts of an HTTP 1.1 transaction to stream their possibly infinitely bounded data. The advantages is that the sender can send data that is beyond the sender's memory limit, and the receiver can act on

Redis

Redis stands for REmote DIctionary Server. By default, redis stores all data in memory. It's a key-structure database. redis-server is the actual datastore. redis-cli is the command line interface that performs any redis command. By default, redis binds to port 6379.

Starting the redis server

redis-server

While you can build a complete system using Redis only, I think most people will find that it supplements their more generic data solution - whether that be a traditional relational database, a document-oriented system, or something else. It’s the kind of solution you use to implement specific features.

	db.Collection.find({
	created_at : {
	'$gte': new Timestamp(new Date(2012, 0, 21), 0),
	'$lte': new Timestamp(new Date(2012, 0, 22), 0)
	})

	/*
	INIT: ensure Babel/Eslint/Flow is configured for ES Class Fields & Static Properties
	JSX USAGE: <Iframe src='http://web.site' onLoad={myOnloadFunction}/>
	*/
	import React, { Component, PropTypes } from 'react'
	import ReactDOM from 'react-dom'

	class Iframe extends Component {

	static propTypes: Object = {

	# first:
	lsbom -f -l -s -pf /var/db/receipts/org.nodejs.pkg.bom \| while read f; do sudo rm /usr/local/${f}; done
	sudo rm -rf /usr/local/lib/node /usr/local/lib/node_modules /var/db/receipts/org.nodejs.*

	# To recap, the best way (I've found) to completely uninstall node + npm is to do the following:

	# go to /usr/local/lib and delete any node and node_modules
	cd /usr/local/lib
	sudo rm -rf node*

	// Port, host and auth token of Redis server might be defined as environment
	// variables. If not, fall back to defaults.
	var redisPort = process.env.REDIS_PORT \|\| 6379,
	redisHost = process.env.REDIS_HOST \|\| '127.0.0.1',
	redisAuth = process.env.REDIS_AUTH \|\| null,
	redis = require('redis');

	// Since we are waiting for the error event, we don't have to check for errors
	// individually after each Redis command.
	var onError = function (error) {

	1. Install Linux updates, set time zones, followed by GCC and Make

	sudo yum -y update
	sudo ln -sf /usr/share/zoneinfo/America/Indianapolis \
	/etc/localtime
	sudo yum -y install gcc make


	2. Download, Untar and Make Redis 2.8 (check here http://redis.io/download)

	#!/bin/sh
	#
	# redis - this script starts and stops the redis daemon
	#
	# chkconfig: - 85 15
	# description: Redis is an open source, BSD licensed, advanced \
	# key-value store. It is often referred to as a \
	# data structure server since keys can contain \
	# strings, hashes, lists, sets and sorted sets.
	# processname: redis

	// For demonstration purposes
	async function getHTML () {
	if (Math.random() > 0.5) {
	return 'Randomly succeeded'
	} else {
	throw new Error('Randomly failed')
	}
	}

	// Checks that an instance promise didn't resolve with an error,

	#!/usr/bin/env sh

	##
	# This is script with useful tips taken from:
	# https://github.com/mathiasbynens/dotfiles/blob/master/.osx
	#
	# install it:
	# curl -sL https://raw.github.com/gist/2263406/osx.sh \| sh
	#