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PostgreSQL 16 Administration Cookbook

PostgreSQL 16 Administration Cookbook

By : GIANNI CIOLLI, Boriss Mejías, Jimmy Angelakos, Vibhor Kumar, Simon Riggs
4.8 (27)
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PostgreSQL 16 Administration Cookbook

PostgreSQL 16 Administration Cookbook

4.8 (27)
By: GIANNI CIOLLI, Boriss Mejías, Jimmy Angelakos, Vibhor Kumar, Simon Riggs

Overview of this book

PostgreSQL has seen a huge increase in its customer base in the past few years and is becoming one of the go-to solutions for anyone who has a database-specific challenge. This PostgreSQL book touches on all the fundamentals of Database Administration in a problem-solution format. It is intended to be the perfect desk reference guide. This new edition focuses on recipes based on the new PostgreSQL 16 release. The additions include handling complex batch loading scenarios with the SQL MERGE statement, security improvements, running Postgres on Kubernetes or with TPA and Ansible, and more. This edition also focuses on certain performance gains, such as query optimization, and the acceleration of specific operations, such as sort. It will help you understand roles, ensuring high availability, concurrency, and replication. It also draws your attention to aspects like validating backups, recovery, monitoring, and scaling aspects. This book will act as a one-stop solution to all your real-world database administration challenges. By the end of this book, you will be able to manage, monitor, and replicate your PostgreSQL 16 database for efficient administration and maintenance with the best practices from experts.
Table of Contents (15 chapters)
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13
Other Books You May Enjoy
14
Index

Setting the configuration parameters for the database server

The parameter file, which is known as postgresql.conf, is the main location that’s used to define parameter values for the PostgreSQL server. All the parameters can be set in the parameter file. There are also two other parameter files: pg_hba.conf and pg_ident.conf. Both of these relate to connections and security, so we’ll cover them in later chapters. Other locations can be added with the include directive inside postgresql.conf, as we will explain in this recipe.

Getting ready

In the pg_settings view of the pg_catalog, the context defines when each parameter can be set. The following table categorizes this so that we can see what action is needed for changes to take effect. SET is a command, but RELOAD and RESTART are actions, not specific commands. What is RESTART ALL? Some parameters marked POSTMASTER are marked as exceptions in the following table. These parameters must be set to a value less...

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