You're reading from Learn PostgreSQL - Second Edition

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Published inOct 2023

PublisherPackt

ISBN-139781837635641

Edition2nd Edition

Concepts

Data Analysis

Authors (2):

Luca Ferrari

Enrico Pirozzi

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Monitoring the cluster

Monitoring the cluster allows you to understand what the cluster is doing at any given point in time and potentially act and react accordingly to avoid degradation in the performance and usability of databases. PostgreSQL provides a rich set of catalogs that allow a database administrator to monitor the overall activity by issuing only SQL statements and queries.

You can also combine the results of the information coming from the catalog with other external monitoring tools, ranging from your operating system’s tools to more complex ones such as Nagios.

In this section, we will have a look at the main PostgreSQL catalogs used to monitor and collect information about database activities. As you can imagine, only a database administrator can get complete information about overall cluster activities.

The cluster collects information about activities by means of the statistic collector, a dedicated process that is responsible for collecting ...

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Learn PostgreSQL - Second Edition

Published in: Oct 2023Publisher: PacktISBN-13: 9781837635641

Authors (2)

Luca Ferrari

Luca Ferrari has been passionate about computer science since the Commodore 64 era, and today holds a master's degree (with honors) and a Ph.D. from the University of Modena and Reggio Emilia. He has written several research papers, technical articles, and book chapters. In 2011, he was named an Adjunct Professor by Nipissing University. An avid Unix user, he is a strong advocate of open source, and in his free time, he collaborates with a few projects. He met PostgreSQL back in release 7.3; he was a founder and former president of the Italian PostgreSQL Community (ITPUG). He also talks regularly at technical conferences and events and delivers professional training.
Read more about Luca Ferrari

Enrico Pirozzi

Enrico Pirozzi, EnterpriseDB certified on implementation management and tuning, with a master's in computer science, has been a PostgreSQL DBA since 2003. Based in Italy, he has been providing database advice to clients in industries such as manufacturing and web development for 10 years. He has been training others on PostgreSQL since 2008. Dedicated to open source technology since early in his career, he is a cofounder of the PostgreSQL Italian mailing list, PostgreSQL-it, and of the PostgreSQL Italian community site, PSQL
Read more about Enrico Pirozzi

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Monitoring the cluster

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