Book Image

Mastering PostgreSQL 15 - Fifth Edition

By : Hans-Jürgen Schönig
Book Image

Mastering PostgreSQL 15 - Fifth Edition

By: Hans-Jürgen Schönig

Overview of this book

Starting with an introduction to the newly released features of PostgreSQL 15, this updated fifth edition will help you get to grips with PostgreSQL administration and how to build dynamic database solutions for enterprise apps, including designing both physical and technical aspects of the system. You'll explore advanced PostgreSQL features, such as logical replication, database clusters, advanced indexing, and user management to manage and maintain your database. You'll then work with the PostgreSQL optimizer, configure PostgreSQL for high speed, and move from Oracle to PostgreSQL. Among the other skills that the book will help you build, you’ll cover transactions, handling recursions, working with JSON and JSONB data, and setting up a Patroni cluster. It will show you how to improve performance with query optimization. You'll also focus on managing network security and work with backups and replication while exploring useful PostgreSQL extensions that optimize the performance of large databases. By the end of this PostgreSQL book, you’ll be able to use your database to its utmost capacity by implementing advanced administrative tasks with ease.
Table of Contents (16 chapters)

Log Files and System Statistics

In Chapter 4, Handling Advanced SQL, you learned about advanced SQL and ways of viewing SQL in a different light. However, database work doesn’t only consist of hacking up fancy SQL. Sometimes, it is about keeping things running in a professional manner. To do that, it is highly important to keep an eye on system statistics, log files, and so on.

Monitoring is the key to running databases professionally. Fortunately, PostgreSQL has many features that can help you monitor your databases, and you will learn how to use them in this chapter.

In this chapter, you will learn about the following topics:

  • Gathering runtime statistics
  • Creating log files
  • Gathering important information
  • Making sense of database statistics

By the end of this chapter, you will be able to configure PostgreSQL’s logging infrastructure properly and take care of log files in the most professional way possible.