Book Image

PostgreSQL Administration Cookbook, 9.5/9.6 Edition - Third Edition

Book Image

PostgreSQL Administration Cookbook, 9.5/9.6 Edition - Third Edition

Overview of this book

PostgreSQL is a powerful opensource database management system; now recognized as the expert's choice for a wide range of applications, it has an enviable reputation for performance and stability. PostgreSQL provides an integrated feature set comprising relational database features, object-relational, text search, Geographical Info Systems, analytical tools for big data and JSON/XML document management. Starting with short and simple recipes, you will soon dive into core features, such as configuration, server control, tables, and data. You will tackle a variety of problems a database administrator usually encounters, from creating tables to managing views, from improving performance to securing your database, and from using monitoring tools to using storage engines. Recipes based on important topics such as high availability, concurrency, replication, backup and recovery, as well as diagnostics and troubleshooting are also given special importance. By the end of this book, you will have all the knowledge you need to run, manage, and maintain PostgreSQL efficiently.
Table of Contents (13 chapters)

Using repmgr

As said before, replication is great provided it works. It works well if it's understood and works even better if it's tested. This is a great reason to use repmgr utility.

The repmgr utility 3.3 is an open source tool designed specifically for PostgreSQL replication. To get additional information about repmgr, visit http://www.repmgr.org/.

The repmgr utility provides a command-line interface and a management process (daemon) used to monitor and manage PostgreSQL servers involved in replication. The repmgr utility easily supports more than two nodes, with automatic failover detection.

Getting ready

Install repmgr utility from binary packages on each PostgreSQL node.

Set up replication security and network...