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You're reading from PostgreSQL Administration Cookbook, 9.5/9.6 Edition Effective database management for administrators

Product type Paperback

Published in Apr 2017

Publisher

ISBN-13 9781785883187

Length 556 pages

Edition 3rd Edition

Languages

SQL

Tools

PostgreSQL

Concepts

Database Administration

Authors (4):

Gianni Ciolli

Hannu Krosing

Gabriele Bartolini

Simon Riggs

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Table of Contents (13) Chapters

Preface

1. First Steps FREE CHAPTER

2. Exploring the Database

3. 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

Monitoring and tuning vacuum

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 then you may want to think about setting a few parameters.

Getting ready

autovacuum_max_workers should always be set to more than 2. Setting it too high may not be very useful, so be careful.

Setting vacuum_cost_delay too high is counterproductive. VACUUM is your friend, not your enemy, so delaying it until it doesn't happen at all just makes things worse.

maintenance_work_mem should be set to anything up to 1GB, according to how much memory you can allocate to this task at this time.

Let's watch what happens when...

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Authors (3)

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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Bartolini

Gabriele Bartolini is a long-time open source programmer, now head of support at 2ndQuadrant, and an active member of the international PostgreSQL community. Gabriele has a degree in statistics from the University of Florence. His areas of expertise are data mining and data warehousing, and he has worked on web traffic analysis in Australia and Italy. He currently lives in Prato, a small but vibrant city located in the northern part of Tuscany, Italy. His second home is Melbourne, Australia, where he studied at Monash University and worked in the ICT sector. Gabriele's hobbies include playing his Fender Stratocaster electric guitar and "calcio" (football or soccer, depending on which part of the world you come from).

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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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