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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

Product type Paperback

Published in Dec 2023

Publisher Packt

ISBN-13 9781835460580

Length 636 pages

Edition 1st Edition

Languages

SQL

Tools

PostgreSQL

Concepts

Database Administration

Authors (5):

Boriss Mejías

Jimmy Angelakos

Simon Riggs

Gianni Ciolli

Vibhor Kumar

+1 more

View More author details

Table of Contents (15) Chapters

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

How much memory does a database currently use?

This is one of those questions that are quick and simple when asked, but not so much when being answered.

PostgreSQL uses memory in a dynamic way across its databases, which is why the question includes the word “currently.” By this, we mean that the shared buffers managed by a database server are used concurrently by all its databases. This is based on demand, so if a database is unused, then the amount of memory it uses will decrease, because the same memory will gradually be reused to cache data files from busier databases.

How to do it…

The largest amount of memory is usually consumed for the shared buffers. This is an area that is shared among all the sessions; e.g., if multiple sessions are working on the same table at the same time, there is only one copy of each table block in the shared buffers.

The pg_buffercache extension provides a view that has one row for each buffer page. It can be installed...

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PostgreSQL 16 Administration Cookbook

Published in: Dec 2023

Publisher: Packt

ISBN-13: 9781835460580

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Authors (5)

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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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.

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Vibhor Kumar

Vibhor Kumar

Vibhor Kumar, Global VP at EDB, is a pioneering data tech leader. He manages a global team of engineers, optimizing clients' Postgres databases for peak performance and scalability. He advises Fortune 500 clients, including many Financial Institutes, in innovating and transforming their data platforms. His past experience spans IBM, BMC Software, and CMC Ltd. He holds a BSc in Computer Science from the University of Lucknow and a Master's from the Army Institute of Management. As a certified expert in numerous technologies, he often shares his insights on DevOps, cloud, and database optimization through blogging and speaking at events.

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Jimmy Angelakos

Jimmy Angelakos

Jimmy Angelakos is a Systems and Database Architect and recognized PostgreSQL expert. He studied Computer Science at the University of Aberdeen, has worked with Open-Source tools for 25+ years, is an active member of PostgreSQL Europe and occasional contributor to the PostgreSQL project. He also speaks frequently at database and Free & Open-Source Software conferences

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Boriss Mejías

Boriss Mejías

Boriss Mejias is a Senior Solutions Architect at EDB, building on his experience as PostgreSQL consultant and trainer at 2ndQuadrant. He has been working with open source software since the beginning of the century contributing to several projects both with code and community work. He has a PhD in Computer Science from the Université catholique de Louvain, and an Engineering degree from Universidad de Chile.Complementary to his role as Solutions Architect, he gives PostgreSQL training and is a regular speaker at PostgreSQL conferences. He loves spending time with his family and playing air guitar

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