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 it works...
In order to see where our PostgreSQL cluster fits company expectations, we need to know whether the company and each individual part of the existing application stack has an overall target RTO. If it doesn't, it's our job to approximate one. This means contacting any decision-makers, product owners, architects, and so on, to know what RTO target we're trying to attain and how other resources may contribute. These will act as a type of maximum value we can't exceed.
Keep in mind that RTO values tend to be amplified between layers. If our RTO is higher than some portion of the application stack, that will necessarily raise the RTO of that layer as well, which may increase the RTO of each subsequent layer. This is the exact scenario ...
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