May 2019
Intermediate to advanced
600 pages
20h 46m
English
book
PostgreSQL 11 Administration Cookbook
by Simon Riggs, Gianni Ciolli, Sudheer Kumar Meesala, Sheldon Strauch
Content preview from PostgreSQL 11 Administration Cookbook
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Hot standby and read scalability
Hot standby (or read replicas) is the name for the PostgreSQL feature that allows us to connect to a standby node and execute read-only queries. Most importantly, hot standby allows us to run queries while the standby is being continuously updated through either file-based or streaming replication.
Hot standby allows you to offload large or long-running queries or parts of your read-only workload to the standby nodes. Should you need to switch over or failover to the standby node, your queries will keep executing during the promotion process to avoid any interruption of service.
You can add additional hot standby nodes to scale the read-only workload. There is no hard limit on the number of standby nodes, ...
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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.