September 2015
Beginner to intermediate
230 pages
4h 47m
English
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Redis Sentinel
When a master node experiences issues, one of its slave nodes needs to be promoted to master, and all the other slaves need to be reconfigured to point to the new master. Before Redis Sentinel, this failover process was done manually, which was not very reliable.
Redis Sentinel is a distributed system designed to automatically promote a Redis slave to master if the existing master fails. Sentinel does not distribute data across nodes since the master node has all of the data and the slaves have a copy of the data—Sentinel is not a distributed data store.
The most common architecture contains an installation of one Sentinel for each Redis server. Sentinel is a separate process from the Redis server, and it listens on its own port. ...
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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.
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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.