alvinlai

Install Multiple Java Versions on macOS High Sierra

Install Homebrew Cask

On Mac, Homebrew is the de-facto package manager, and Homebrew Cask is the app manager. I’m going to use Cask to install Java 7 and 8.

Install Homebrew Cask first if you haven’t:

brew update
brew tap caskroom/cask

alvinlai

#!/bin/bash
# installing erlang on ubuntu's

VERSION="18.2.1"

sudo apt-get install build-essential libncurses5-dev openssl libssl-dev

sudo mkdir -p /opt/erlang/
cd /usr/local/bin/
sudo curl -O https://raw.githubusercontent.com/kerl/kerl/master/kerl && chmod a+x kerl

alvinlai

Effective Engineer - Notes

• By Edmond Lau
• Highly Recommended 👍
• http://www.theeffectiveengineer.com/

What's an Effective Engineer?

• They are the people who get things done. Effective Engineers produce results.

Adopt the Right Mindsets

alvinlai

Rich Hickey on becoming a better developer

Rich Hickey • 3 years ago

Sorry, I have to disagree with the entire premise here.

A wide variety of experiences might lead to well-roundedness, but not to greatness, nor even goodness. By constantly switching from one thing to another you are always reaching above your comfort zone, yes, but doing so by resetting your skill and knowledge level to zero.

Mastery comes from a combination of at least several of the following:

alvinlai

mkdir -p /usr/local/etc/nginx/sites-{enabled,available}
cd /usr/local/etc/nginx/sites-enabled
ln -s ../sites-available/default.conf
ln -s ../sites-available/default-ssl.conf

File locations:

• nginx.conf to /usr/local/etc/nginx/
• default.conf and default-ssl.conf to /usr/local/etc/nginx/sites-available
• homebrew.mxcl.nginx.plist to /Library/LaunchDaemons/

alvinlai

            <!-- Run the application using "mvn jetty:run" -->
            <plugin>
                <groupId>org.mortbay.jetty</groupId>
                <artifactId>maven-jetty-plugin</artifactId>
                <version>6.1.9</version>
                <configuration>
                    <scanIntervalSeconds>5</scanIntervalSeconds>
                    <contextPath>/</contextPath>
                    <connectors>
                        <connector implementation="org.mortbay.jetty.nio.SelectChannelConnector">

alvinlai

//
// Regular Expression for URL validation
//
// Author: Diego Perini
// Updated: 2010/12/05
// License: MIT
//
// Copyright (c) 2010-2013 Diego Perini (http://www.iport.it)
//
// Permission is hereby granted, free of charge, to any person

alvinlai

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

• Scaling Twitter: Making Twitter 10000 Percent Faster
• Scaling Twitter
• Blaine Cook on Scaling Twitter - YouTube

alvinlai

# be sure to comment out the require 'capistrano/deploy' line in your Capfile!

# config valid only for Capistrano 3.1
lock '3.2.1'

set :application, 'my-cool-application'

# the base docker repo reference
set :name, "johns-stuff/#{fetch(:application)}"

alvinlai

source 'https://rubygems.org'

gem 'rails', '4.0.2'
gem "redis-rails", "~> 4.0.0"
gem 'puma'
gem 'unicorn'

# Use sqlite3 as the database for Active Record
gem 'sqlite3'