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…
Ask and answer these questions about the cluster being upgraded:
- How many nodes are in the existing cluster?
- How much data is represented within each node of the cluster?
- Do we have enough equivalent hardware to reproduce every node?
- If not, can we subsist on a smaller server count for any duration?
- If not, is there sufficient storage capacity on existing cluster nodes to host two copies of the data?
- Do applications currently communicate through a proxy layer?
- If not, would it be difficult to introduce a proxy layer?
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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.