Book Image

Elasticsearch Indexing

By : Huseyin Akdogan
Book Image

Elasticsearch Indexing

By: Huseyin Akdogan

Overview of this book

Beginning with an overview of the way ElasticSearch stores data, you’ll begin to extend your knowledge to tackle indexing and mapping, and learn how to configure ElasticSearch to meet your users’ needs. You’ll then find out how to use analysis and analyzers for greater intelligence in how you organize and pull up search results – to guarantee that every search query is met with the relevant results! You’ll explore the anatomy of an ElasticSearch cluster, and learn how to set up configurations that give you optimum availability as well as scalability. Once you’ve learned how these elements work, you’ll find real-world solutions to help you improve indexing performance, as well as tips and guidance on safety so you can back up and restore data. Once you’ve learned each component outlined throughout, you will be confident that you can help to deliver an improved search experience – exactly what modern users demand and expect.
Table of Contents (15 chapters)
Elasticsearch Indexing
About the Author
About the Reviewer

Chapter 6. Improving Indexing Performance

In the previous chapter, we looked at the core components of an Elasticsearch cluster. We talked about nodes, shards, and replicas. We tried to explain the architecture of distribution and both shards and documents by Elasticsearch. Then, we looked closely at the functions performed by replica shards. Finally, we discussed how to configure a cluster correctly and how to choose the right amount of shards and replicas. In this chapter, we will look at how we can realize effective indexing. For this purpose, we will examine memory configuration and mapping definition tips. We will look at segments and merging policies. Then, we will examine how to throttle disk I/O operations. By the end of this chapter, we would have covered the following topics:

  • How to configure memory for better performance

  • The discovery of JVM memory structure

  • Types of garbage collector

  • Different strategies among garbage collectors

  • How to choose the right merge policy

  • How to optimize...