February 2020
Intermediate to advanced
734 pages
38h 13m
English
Content preview from PostgreSQL 12 High Availability Cookbook - Third Edition
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Setting up a hot standby
It is a very good practice, if not an outright requirement, to have a second online copy of a PostgreSQL server in high-availability clusters. Without such an online server, recovery from an outage may require hours of incident response, backup recovery, and server provisioning. We have everything to gain by having extra online servers.
In addition, the process of setting up a hot standby acts as the basis for creating PostgreSQL streaming replicas. This means that we can reuse this recipe over and over again anytime we need to create PostgreSQL mirrors, provision extra backup copies, set up test instances, and so on.
All of this is made possible by the pg_basebackup command, which forms the basis of many other derived ...
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