February 2020
Intermediate to advanced
734 pages
38h 13m
English
Content preview from PostgreSQL 12 High Availability Cookbook - Third Edition
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Switching targets
We've now reached the point where the upgrade is possible. We have a brand new cluster running the newer version of PostgreSQL, all data has been copied, and we have tested the application on the new cluster to ensure compatibility. It is now time to switch the application stack to the new cluster and complete the upgrade transition.
PgBouncer will play a key role in this final step, and will ensure the application barely even notices the migration. This recipe will explain how the upgrade itself works, and the other steps we need to execute to ensure everything is fully synchronized.
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.