Book Image

PostgreSQL Administration Cookbook, 9.5/9.6 Edition - Third Edition

Book Image

PostgreSQL Administration Cookbook, 9.5/9.6 Edition - Third Edition

Overview of this book

PostgreSQL is a powerful opensource database management system; now recognized as the expert's choice for a wide range of applications, it has an enviable reputation for performance and stability. PostgreSQL provides an integrated feature set comprising relational database features, object-relational, text search, Geographical Info Systems, analytical tools for big data and JSON/XML document management. Starting with short and simple recipes, you will soon dive into core features, such as configuration, server control, tables, and data. You will tackle a variety of problems a database administrator usually encounters, from creating tables to managing views, from improving performance to securing your database, and from using monitoring tools to using storage engines. Recipes based on important topics such as high availability, concurrency, replication, backup and recovery, as well as diagnostics and troubleshooting are also given special importance. By the end of this book, you will have all the knowledge you need to run, manage, and maintain PostgreSQL efficiently.
Table of Contents (13 chapters)

Producing a daily summary of log file errors

PostgreSQL can generate gigabytes of logs per day. Lots of data is good if you want to investigate some specific event, but it is not what you will use for daily monitoring of database health.

In this recipe, we'll see how to perform a post analysis of our log files and get reports (and insights) about what has happened in a given period of time.

A different approach is to perform real-time analysis of queries through the pg_stat_statements extension, which will be covered in the next recipe.

Getting ready

Make sure that your PostgreSQL is set up to rotate log files, for example, daily. I personally prefer to integrate PostgreSQL with rsyslog and logrotate for log management...