July 2015
Beginner to intermediate
162 pages
3h 31m
English
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Having some of our data everywhere
There are some use cases where certain data that is stored within a cluster is relied upon so heavily, it would be beneficial to have a backup copy on every node. This, combined with enabling the read-backup-data option for the collection, means that we will always serve this data directly from the queried node rather than reaching out from across the cluster. We can achieve this by ensuring that the number of copies was configured to be the same as the number of nodes, but this configuration would immediately degrade the moment we scaled up the cluster.
Fortunately, this use case has been considered for us. ReplicatedMap is a specialized map collection. Rather than partitioning the data and distributing a set ...
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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.