February 2020
Intermediate to advanced
734 pages
38h 13m
English
Content preview from PostgreSQL 12 High Availability Cookbook - Third Edition
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How to do it...
For this recipe, we will need at least three PostgreSQL servers. For demonstration purposes, we'll assume that they are named pgha1, pgha2, and pgha3. We will also need a dedicated IP address to use for the VIP location, such as 10.0.30.50.
Follow these steps on all three servers:
- Debian-based systems should use the following apt-get command to install the base repmgr software:
sudo apt-get install postgresql-12-repmgr
Red Hat-based systems will need to use this yum command instead:
sudo yum install repmgr12
- Execute the following commands for direct SSH access to the postgres user to all nodes:
ssh-keygen -t rsa -N '' ssh-copy-id postgres@pgha1 ssh-copy-id postgres@pgha2 ssh-copy-id postgres@pgha3
- Repeat the preceding ...
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