Book Image

PostgreSQL 14 Administration Cookbook

By : Simon Riggs, Gianni Ciolli
5 (1)
Book Image

PostgreSQL 14 Administration Cookbook

5 (1)
By: Simon Riggs, Gianni Ciolli

Overview of this book

PostgreSQL is a powerful, open-source database management system with an enviable reputation for high performance and stability. With many new features in its arsenal, PostgreSQL 14 allows you to scale up your PostgreSQL infrastructure. With this book, you'll take a step-by-step, recipe-based approach to effective PostgreSQL administration. This book will get you up and running with all the latest features of PostgreSQL 14 while helping you explore the entire database ecosystem. You’ll learn how to tackle a variety of problems and pain points you may face as a database administrator such as creating tables, managing views, improving performance, and securing your database. As you make progress, the book will draw attention to important topics such as monitoring roles, validating backups, regular maintenance, and recovery of your PostgreSQL 14 database. This will help you understand roles, ensuring high availability, concurrency, and replication. Along with updated recipes, this book touches upon important areas like using generated columns, TOAST compression, PostgreSQL on the cloud, and much more. By the end of this PostgreSQL book, you’ll have gained the knowledge you need to manage your PostgreSQL 14 database efficiently, both in the cloud and on-premise.
Table of Contents (14 chapters)

Chapter 8: Monitoring and Diagnosis

In this chapter, you will find recipes for some common monitoring and diagnosis actions that you will want to perform inside your database. They are meant to answer specific questions that you often face when using PostgreSQL.

In this chapter, we will cover the following recipes:

  • Overview of PostgreSQL monitoring
  • Cloud-native monitoring
  • Providing PostgreSQL information to monitoring tools
  • Real-time viewing using pgAdmin
  • Checking whether a user is connected
  • Checking whether a computer is connected
  • Repeatedly executing a query in psql
  • Checking which queries are running
  • Monitoring the progress of commands and queries
  • Checking which queries are active or blocked
  • Knowing who is blocking a query
  • Killing a specific session
  • Detecting an in-doubt prepared transaction
  • Knowing whether anybody is using a specific table
  • Knowing when a table was last used
  • Usage of disk space by temporary...