February 2020
Intermediate to advanced
734 pages
38h 13m
English
Content preview from PostgreSQL 12 High Availability Cookbook - Third Edition
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Starting with a single BDR node
Once the software is physically installed on the server and configured to launch with PostgreSQL, we must start building our cluster. Despite how strange it might seem to have a cluster of only a single node, that's exactly how every BDR cluster begins.
We can think of our first BDR node as a seed from which the remainder of the cluster will grow. This node is very likely the current writable node used by our application stack. Thus, this recipe is a sort of conversion procedure, where we will explain how to transform a standard PostgreSQL database into the first node of a BDR cluster.
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