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

Using walctl to create replica


In this recipe, we are going to use the walctl_clone utility to create a clone/replica

How to do it...

For this recipe only two servers are needed. One is the primary server and the other is the replica server. Our primary server will be named pg-primary and the replica will be named pg-clone server.

We need to execute the following command on the replica server:

walctl_clone pg-primary walctl

How it works...

walctl_clone has two parameters. The first parameter is supposed to be the hostname of the primary server and the second parameter should be the name of the database superuser with which we are going to create a backup.

Here are the series of actions that are performed on behalf of walctl_clone:

  • It puts the primary server in the backup mode.

  • It retrieves all files from the database. It will copy only the changed files if all the data files are residing in the data directory.

  • Once it has copied the respective files it will end the backup mode on the primary server...