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Elasticsearch 7 Quick Start Guide

You're reading from   Elasticsearch 7 Quick Start Guide Get up and running with the distributed search and analytics capabilities of Elasticsearch

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Product type Paperback
Published in Oct 2019
Publisher Packt
ISBN-13 9781789803327
Length 186 pages
Edition 1st Edition
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Authors (2):
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Douglas Miller Douglas Miller
Author Profile Icon Douglas Miller
Douglas Miller
Anurag Srivastava Anurag Srivastava
Author Profile Icon Anurag Srivastava
Anurag Srivastava
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Performance Tuning

In this chapter, we will look into Elasticsearch performance-related issues and how we can tweak Elasticsearch to get the maximum output. Elasticsearch is widely used to search through a database and return documents that match the query, but it can quickly become overwhelmed when it has to retrieve a large number of documents using a single query. The Scroll API is therefore recommended in these situations. Elasticsearch does not index documents larger than 100 MB, but this setting can be changed in http.max_content_length as long as it does not go over the Lucene limit of 2 GB. Generally, users are recommended to avoid using large documents in Elasticsearch, as they put stress on the network and overwhelm memory usage and disk space.

In this chapter, we are going to cover the following topics:

  • Data sparsity
  • Solutions to common problems
  • How to tune for indexing...
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