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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Exploring a logical replication setup and new logical replication features on PostgreSQL 16

Let’s now explore how to perform logical replication. In this section, we will prepare the environment we need to be able to perform our logical replication.

Logical replication environment settings

Suppose we have two machines, which we will call pg_pub and pg_sub. We must remember to set our internal DNS, or the /etc hosts file, so that pg_pub can reach pg_sub; for example, for the pg_pub server, the primary server will have an IP of 192.168.144.3, and for the pg_sub server, the replica server will have an IP of 192.168.144.2. If you use the chapter18 container, you can execute:

chapter_18$ bash run-pg-docker.sh chapter18_logical_clear

Once you are inside the first container, you can open another bash terminal and execute:

chapter_18$ bash run-pg-docker_replica.sh chapter18_logical_clear

Now, let’s check whether there is a connection between the two...

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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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Exploring a logical replication setup and new logical replication features on PostgreSQL 16

Logical replication environment settings

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