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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

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Product type Paperback
Published in Mar 2022
Publisher Packt
ISBN-13 9781803248974
Length 608 pages
Edition 1st Edition
Concepts
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Authors (2):
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Gianni Ciolli Gianni Ciolli
Author Profile Icon Gianni Ciolli
Gianni Ciolli
Simon Riggs Simon Riggs
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Simon Riggs
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Toc

Table of Contents (14) Chapters Close

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

Investigating and reporting a bug

When you find out that PostgreSQL is not doing what it should, then it's time to investigate.

Getting ready

It is a good idea to make a full copy of your PostgreSQL installation before you start investigating. This will help you restart several times and be sure that you are investigating the results of the bug, and not chasing your tail by looking at changes that were introduced by your last investigation and debugging attempt.

Do not forget to include your tablespaces in the full copy.

How to do it…

Try to make a minimal repeatable test scenario that exhibits this bug. Sometimes, the bug disappears while doing this, but mostly, it is needed to make the process easy. It is almost impossible to fix a bug that you can't observe and repeat at will.

If it is about query processing, then you can usually provide a minimal dump file (the result of running pg_dump) of the specific tables, together...

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