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Jenkins, Protractor and Headless Chrome Browser Setup on Ubuntu 14.04

Update Ubuntu

sudo apt-get update
sudo apt-get upgrade

Install Java

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# Prepare dependencies
sudo apt-get update
sudo apt-get install apt-transport-https ca-certificates
sudo apt-get install linux-image-extra-$(uname -r) linux-image-extra-virtual

# Add new GPG Key
sudo apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D

# Open the /etc/apt/sources.list.d/docker.list file in your favorite editor.
# If the file doesn’t exist, create it.

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# Use this one for Mac OS

# Install preriquisite?
 
git clone https://github.com/yyuu/pyenv.git ~/.pyenv
echo 'export PYENV_ROOT="$HOME/.pyenv"' >> ~/.bash_profile
echo 'export PATH="$PYENV_ROOT/bin:$PATH"' >> ~/.bash_profile
echo 'eval "$(pyenv init -)"' >> ~/.bash_profile

# install virtualenv

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Node.js Best Practice Exception Handling

Code examples from this stack overflow answer.

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#!/bin/bash

# Bash script to install latest version of ffmpeg and its dependencies on Ubuntu 12.04 or 14.04
# Inspired from https://gist.github.com/faleev/3435377

# Remove any existing packages:
sudo apt-get -y remove ffmpeg x264 libav-tools libvpx-dev libx264-dev

# Setting up apt-get search list for the dependencies
sudo vim /etc/apt/sources.list

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/**
 * mule-uploader.js
 *
 * Copyright 2012-2014, Gabriel Purcaru
 * Released under GPL License.
 * License: http://www.gnu.org/copyleft/gpl.html
 */


(function(namespace){

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# Install nodejs
curl -sL https://deb.nodesource.com/setup | sudo bash -
sudo apt-get install nodejs

# Install git for bower
sudo apt-get install git
sudo npm install -g bower
sudo npm install -g gulp

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Backend Architectures

Twitter

ror, scala, jetty, erlang, thrift, mongrel, comet server, my-sql, memchached, varnish, kestrel(mq), starling, gizzard, cassandra, hadoop, vertica, munin, nagios, awstats

• Introduce Gizzard of Twitter - 트위터의 새로운 분산 관리 라이브러리 Gizzard를 소개합니다.
• The Architecture Twitter Uses to Deal with 150M Active Users, 300K QPS, a 22 MB/S Firehose, and Send Tweets in Under 5 Seconds
• Scaling Twitter: Making Twitter 10000 Percent Faster