pgReplicationTutorial

This repository contains files for the PostgreSQL Binary Replication tutorial.

These files are required to perform the hands-on exercises. Importantly, there is significant setup required in order to do the hands-on exercises which needs to happen before the tutorial starts, so please read the below.

All steps through Vagrant Up / Docker Pull should be completed before getting to the tutorial. The tutorial will not include any help on getting these systems running.

Requirements

Laptop Harware:

running Linux, OSX, or Windows XP or later
64-bit (32-bit may be possible, see below)
at least 1GB of RAM, 2GB or more preferred
300MB free disk space

Software and Wetware:

terminal program capable of ssh
familiarity with the bash/linux command line
familiarity with one or more command-line text editors
vagrant and virtualbox (see below) OR Docker 1.5.0 or later

Vagrant vs. Docker

Docker is the recommended platform for running the execises, because it is much easier to set up, and requires far less system resources to run when you're taking the tutorial. However, using Docker does require:

A Linux laptop, with Linux kernel 3.8 or later
Package lxc-docker installed running version 1.5 or later

OR:

A windows or Mac laptop running the Docker Toolbox or Kitematic

Docker Toolbox is available from Docker. We are not able to provide detailed instructions or assistance on configuring Docker Toolbox on Windows or Mac. The Toolbox page, however, has an excellent tutorial.

If you are unable to get Docker working, or are simply more comfortable with Vagrant, then please see the Vagrant instructions in Vagrant.md after you have installed the tutorial exercises.

Installing Tutorial Exercises

Install the tutorial exercises on your machine one of two ways below. Installing them is required if you are using Vagrant, and is optional if you are using Docker, but helpful.

Preferred Method: Git Checkout from the Github repo. The repository is here: https://github.com/jberkus/pgReplicationTutorial, and you can clone it by:

git clone https://github.com/jberkus/pgReplicationTutorial.git

Alternate Method: if you're not comfortable with git, download the tarball from:

https://dl.dropboxusercontent.com/u/5132935/pgReplicationTutorial.tgz

This will require the programs "tar" and "gzip" to expand, as follows:

tar -p -xvf pgReplicationTutorial.tgz

There is also a "zip" formatted archive which should be more friendly for Windows users. However, this zip file will not work for Vagrant execution, so it is only suitable for Docker users. You can obtain this zip file from github:

https://github.com/jberkus/pgReplicationTutorial/archive/master.zip

The ReplicationTutorial directory should be placed somewhere you have disk space available.

Docker Installation

The Docker image for this tutorial is 64-bit and was built with Docker 1.7.1. If you are on a 32-bit machine, or if you are limited to using Docker 1.4 or older, I recommend that you scroll back up and follow the Vagrant install instructions instead.

If you're working on Windows or OSX, you'll need to run commands using the Docker Terminal which is a part of the Docker Toolbox.

First pull the image:

docker pull jberkus/pgreplicationtutorial

While a pull is sufficient, I suggest that you test the image by doing:

docker run -it --rm jberkus/pgreplicationtutorial

This should log you into a command prompt as root. If you type "exit" the container will halt and erase itself.

Other Files In This Package

The pgReplicationTutorial package also contains the following files in the Tutorial directory:

exercises.txt

This is a set of commands which you will be running during the hands-on exercises for the tutorial. These are provided in a text file so that you can copy & paste, instead of trying to read every letter and dash from the instructor's screen.

pgReplicationTutorial.odt/pdf

These are copies of the slides for the tutorial.

ChangeLog

0.6 Updated for Postgres Open 2015. PostGIS removed to shrink image. Docker instructions provided as primary recommended option.

0.5.1 multiple fixes to Docker image.

0.5 Added PostgreSQL 9.4 replication slots to the tutorial as exercise. Added some additional tuning and configuration portions.

0.4 Version produced for LinuxConf.AU 2015. Removes PostGIS exercises. Upgrades to PostgreSQL 9.4. Adds Docker support.

0.3 Version produced for FOSS4G 2014. Includes information about replicating PostGIS. Interactive "play" demonstrations have have been removed due to their time-consuming nature.

0.2 Initial version produced for DjangoCon 2013.

License

The pgReplicationTutorial is Copyright 2013-2015 Josh Berkus and PostgreSQL Experts Inc.

All slides, text, instructions and similar content in this tutorial are licensed [Creative Commons Attribution-ShareAlike 3.0] (http://creativecommons.org/licenses/by-sa/3.0/us/)

Code exercises, virtual machines, containers and sample databases are licensed under the [Gnu Public License Version 2] (http://www.gnu.org/licenses/gpl-2.0.html)

All other rights reserved.

jberkus/pgReplicationTutorial

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