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PostgreSQL 16 Administration Cookbook

You're reading from   PostgreSQL 16 Administration Cookbook Solve real-world Database Administration challenges with 180+ practical recipes and best practices

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Product type Paperback
Published in Dec 2023
Publisher Packt
ISBN-13 9781835460580
Length 636 pages
Edition 1st Edition
Languages
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Authors (5):
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Boriss Mejías Boriss Mejías
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Boriss Mejías
Jimmy Angelakos Jimmy Angelakos
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Jimmy Angelakos
Simon Riggs Simon Riggs
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Simon Riggs
Gianni Ciolli Gianni Ciolli
Author Profile Icon Gianni Ciolli
Gianni Ciolli
Vibhor Kumar Vibhor Kumar
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Vibhor Kumar
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Toc

Table of Contents (15) Chapters Close

Preface 1. First Steps 2. Exploring the Database FREE CHAPTER 3. Server Configuration 4. Server Control 5. Tables and Data 6. Security 7. Database Administration 8. Monitoring and Diagnosis 9. Regular Maintenance 10. Performance and Concurrency 11. Backup and Recovery 12. Replication and Upgrades 13. Other Books You May Enjoy
14. Index

Controlling automatic database maintenance

autovacuum is enabled by default in PostgreSQL and mostly does a great job of maintaining your PostgreSQL database. We say mostly because it doesn’t know everything you do regarding the database, such as the best time to perform maintenance actions. Let’s explore the settings that can be tuned so that you can use VACUUM commands efficiently.

Getting ready

Exercising control requires some thinking about what you want:

  • What are the best times of day to perform maintenance activities? When are system resources more available?
  • Which days are quiet, and which are not?
  • Which tables are critical to the application, and which are not?

How to do it…

The first thing you must do is make sure that autovacuum is switched on, which is the default. Check that you have the following parameters enabled in your postgresql.conf file:

autovacuum = on
track_counts = on

PostgreSQL controls...

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