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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 up a connection pool

A connection pool is a term that’s used for a collection of already-connected sessions that can be used to reduce the overhead of connection and reconnection.

There are various ways by which connection pools can be provided, depending on the software stack in use. The best option is to look at the server-side connection pool software because that works for all connection types, not just within a single software stack.

In this recipe, we’re going to look at PgBouncer, which is designed as a very lightweight connection pool. Its name comes from the idea that the pool can be paused and resumed, allowing the server to be restarted or bounced.

Getting ready

First of all, decide where you’re going to store the PgBouncer parameter files, log files, and PID files. PgBouncer can manage more than one database server’s connections at the same time, although that probably isn’t wise for simple architectures. If you...

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