Book Image

PostgreSQL 11 Administration Cookbook

By : Simon Riggs, Gianni Ciolli, Sudheer Kumar Meesala
Book Image

PostgreSQL 11 Administration Cookbook

By: Simon Riggs, Gianni Ciolli, Sudheer Kumar Meesala

Overview of this book

PostgreSQL is a powerful, open source database management system with an enviable reputation for high performance and stability. With many new features in its arsenal, PostgreSQL 11 allows you to scale up your PostgreSQL infrastructure. This book takes a step-by-step, recipe-based approach to effective PostgreSQL administration. The book will introduce you to new features such as logical replication, native table partitioning, additional query parallelism, and much more to help you to understand and control, crash recovery and plan backups. You will learn how to tackle a variety of problems and pain points for any database administrator such as creating tables, managing views, improving performance, and securing your database. As you make steady progress, the book will draw attention to important topics such as monitoring roles, backup, and recovery of your PostgreSQL 11 database to help you understand roles and produce a summary of log files, ensuring high availability, concurrency, and replication. By the end of this book, you will have the necessary knowledge to manage your PostgreSQL 11 database efficiently.
Table of Contents (19 chapters)
Title Page
Copyright and Credits
About Packt
Contributors
Preface
Index

Using repmgr


As we stated previously, replication is great, provided that it works. It works well if it's understood, and it works even better if it's tested. This is a great reason to use the repmgr utility.

 

 

repmgr 4.0 is an open source tool that was 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) that's 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 the repmgr utility from binary packages on each PostgreSQL node.

Set up replication security and network access between nodes according to the Setting up streaming replication security recipe.

How to do it…

The repmgr utility provides a set of single command-line actions that perform all the required activities on one node:

  1. To start a new cluster with...