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You're reading from  Mastering PostgreSQL 15 - Fifth Edition

Product typeBook
Published inJan 2023
PublisherPackt
ISBN-139781803248349
Edition5th Edition
Concepts
Robotic Process Automation
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Author (1)
Hans-Jürgen Schönig
Hans-Jürgen Schönig
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Hans-Jürgen Schönig

Hans-Jürgen Schönig has 20 years' experience with PostgreSQL. He is the CEO of a PostgreSQL consulting and support company called CYBERTEC PostgreSQL International GmbH. It has successfully served countless customers around the globe. Before founding CYBERTEC PostgreSQL International GmbH in 2000, he worked as a database developer at a private research company that focused on the Austrian labor market, where he primarily worked on data mining and forecast models. He has also written several books about PostgreSQL.
Read more about Hans-Jürgen Schönig

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Setting up an HA cluster using Patroni

After this introduction to PostgreSQL replication and some basic techniques, it is time to put it all together and solve an important problem – PostgreSQL HA. A single server or a single piece of hardware is always prone to error. If a server fails, we want to avoid the entire infrastructure going down. What we want is some kind of backup server to take over in case of failure.

In the PostgreSQL world, Patroni has become the de facto standard for achieving HA. Therefore, this section is all about Patroni and how you can use it to make PostgreSQL database setups more reliable.

Understand how Patroni operates

Before we can get started, it is important to explain the underlying logic of Patroni in general. Traditionally, an HA setup consisted of two servers that were connected using two network interfaces. One network interface would serve to move the data inside a cluster. The second connection served as a witness to distinguish...

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Mastering PostgreSQL 15 - Fifth Edition
Published in: Jan 2023Publisher: PacktISBN-13: 9781803248349
© 2023 Packt Publishing Limited All Rights Reserved

Author (1)

author image
Hans-Jürgen Schönig

Hans-Jürgen Schönig has 20 years' experience with PostgreSQL. He is the CEO of a PostgreSQL consulting and support company called CYBERTEC PostgreSQL International GmbH. It has successfully served countless customers around the globe. Before founding CYBERTEC PostgreSQL International GmbH in 2000, he worked as a database developer at a private research company that focused on the Austrian labor market, where he primarily worked on data mining and forecast models. He has also written several books about PostgreSQL.
Read more about Hans-Jürgen Schönig

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