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

Major upgrades online


Upgrading between major releases is hard, and it should be deferred until you have some good reasons and sufficient time to get it right.

You can use replication tools to minimize the downtime required for an upgrade, so we refer to this recipe as an online upgrade.

How to do it...

The following general steps should be followed, allowing at least a month for the complete process to ensure that everything is tested and everybody understands the implications:

  1. Set up a new release of the software on a new test system.
  2. Take a standalone backup from the main system and copy it to the test system.
  3. Test the applications extensively against the new release on the test system.

When everything works and performs correctly, then do the following:

  1. Set up a connection pooler to the main database (it may be there already).
  2. Set up pglogical for all tables from the old to new database servers. Make sure that you wait until all the initial copy tasks have completed for all tables.

Retest the...