June 2017
Beginner to intermediate
404 pages
8h 22m
English
Content preview from Learning Elasticsearch
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More replicas for query throughput
Replicas not only help with the failover but also increase the query throughput. A replica is the exact copy of the primary and is hosted in different node of the cluster. The queries are usually randomized between primary and replica shards.
If your application is read heavy, you should consider increasing the number of replicas.
If some of the shards are not available or don't respond back in time, Elasticsearch responds back with a partial result and is indicated in the _shards section of the response. You should always check the _shards to make sure the response has complete results.
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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.