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PostgreSQL 14 Administration Cookbook

You're reading from PostgreSQL 14 Administration Cookbook Over 175 proven recipes for database administrators to manage enterprise databases effectively

Product type Paperback

Published in Mar 2022

Publisher Packt

ISBN-13 9781803248974

Length 608 pages

Edition 1st Edition

Tools

PostgreSQL

Concepts

Databases

Authors (2):

Gianni Ciolli

Simon Riggs

View More author details

Table of Contents (14) Chapters

Preface

1. Chapter 1: First Steps

2. Chapter 2: Exploring the Database FREE CHAPTER

3. Chapter 3: Server Configuration

4. Chapter 4: Server Control

5. Chapter 5: Tables and Data

6. Chapter 6: Security

7. Chapter 7: Database Administration

8. Chapter 8: Monitoring and Diagnosis

9. Chapter 9: Regular Maintenance

10. Chapter 10: Performance and Concurrency

11. Chapter 11: Backup and Recovery

12. Chapter 12: Replication and Upgrades

13. Other Books You May Enjoy

Monitoring and tuning a vacuum

This recipe covers both the VACUUM command and autovacuum, which I refer to collectively as vacuums (non-capitalized).

If you're currently waiting for a long-running vacuum (or autovacuum) to finish, go straight to the How to do it... section.

If you've just had a long-running vacuum complete, then you may want to think about setting a few parameters for next time, so read the How it works… section.

Getting ready

Let's watch what happens when we run a large VACUUM. Don't run VACUUM FULL, because it runs for a long time while holding an AccessExclusiveLock on the table. Ouch.

First, locate which process is running this VACUUM by using the pg_stat_activity view to identify the specific pid (34399 is just an example).

How to do it…

Repeatedly execute the following query to see the progress of the...

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Authors (2)

Simon Riggs

Simon Riggs

Simon Riggs is the CTO of 2ndQuadrant, having contributed to PostgreSQL as a major developer and committer for 14 years. He has written and designed features for replication, performance, BI, management, and security. Under his guidance, 2ndQuadrant is now a leading developer of open source PostgreSQL, serving hundreds of clients in USA, Europe, and worldwide. Simon is a frequent speaker at many conferences on PostgreSQL Futures. He has worked as a database architect for 30 years.

See other products by Simon Riggs

GIANNI CIOLLI

GIANNI CIOLLI

Gianni Ciolli is the head of professional services at 2ndQuadrant and has been a PostgreSQL consultant, trainer, and speaker at many PostgreSQL conferences in Europe and abroad over the last 10 years. He has a PhD in Mathematics from the University of Florence. He has worked with free and open source software since the 1990s and is active in the community (the Prato Linux User Group and the Italian PostgreSQL Users Group). He lives in London with his son. His other interests include music, drama, poetry, and athletics.

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