Book Image

PostgreSQL High Performance Cookbook

By : Chitij Chauhan, Dinesh Kumar
Book Image

PostgreSQL High Performance Cookbook

By: Chitij Chauhan, Dinesh Kumar

Overview of this book

PostgreSQL is one of the most powerful and easy to use database management systems. It has strong support from the community and is being actively developed with a new release every year. PostgreSQL supports the most advanced features included in SQL standards. It also provides NoSQL capabilities and very rich data types and extensions. All of this makes PostgreSQL a very attractive solution in software systems. If you run a database, you want it to perform well and you want to be able to secure it. As the world’s most advanced open source database, PostgreSQL has unique built-in ways to achieve these goals. This book will show you a multitude of ways to enhance your database’s performance and give you insights into measuring and optimizing a PostgreSQL database to achieve better performance. This book is your one-stop guide to elevate your PostgreSQL knowledge to the next level. First, you’ll get familiarized with essential developer/administrator concepts such as load balancing, connection pooling, and distributing connections to multiple nodes. Next, you will explore memory optimization techniques before exploring the security controls offered by PostgreSQL. Then, you will move on to the essential database/server monitoring and replication strategies with PostgreSQL. Finally, you will learn about query processing algorithms.
Table of Contents (19 chapters)
PostgreSQL High Performance Cookbook
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Customer Feedback
Preface

Replication using Slony


In this recipe, we are going to set up a replication using Slony, which is a widely used replication engine. It replicates a desired set of table data from one database to another. This replication approach is based on a few event triggers that will be created on the source set of tables, which will log the DML and DDL statements into Slony catalog tables. By using Slony, we can also set up the cascading replication among multiple nodes.

Getting ready

The steps followed in this recipe are carried out on a CentOS version 6 machine.

We first need to install Slony.

The following are the steps needed to install Slony:

  1. First, go to the following web link and download the given software: http://slony.info/downloads/2.2/source/

  2. Once you have downloaded the software, the next step is to unzip the tarball and then go to the newly created directory:

            tar xvfj slony1-2.2.3.tar.bz2 
      
            cd slony1-2.2.3 
    
    
  3. In the next step, we are going to configure, compile...