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

Introduction


pgpool-II is basically a middleware solution that works as an interface between a PostgreSQL server and a PostgreSQL client application. pgpool-II talks about the PostgreSQL's backend and frontend protocol and relays a connection between the two. pgpool-II caches incoming connections to PostgreSQL servers and reuses them whenever a new connection with the same properties comes in. This way it reduces connection overhead and improves overall throughput.

pgpool-II in fact offers a lot more features than connection pooling. pgpool-II offers the load balancing and replication modes along with the parallel query feature. However, since this chapter is dedicated to connection pooling, we are going to focus only on the connection pooling feature.

Pgbouncer is also a lightweight connection pooler for PostgreSQL. Applications connect to the Pgbouncer port just like the way it would connect to a Postgresql database on the database port. By using pgbouncer we can lower the connection overload...