Book Image

Elasticsearch for Hadoop

By : Vishal Shukla
Book Image

Elasticsearch for Hadoop

By: Vishal Shukla

Overview of this book

Table of Contents (15 chapters)
Elasticsearch for Hadoop
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Chapter 3. Understanding Elasticsearch

In order to fully leverage all the analytic capabilities of Elasticsearch, Hadoop, and the Kibana stack, it is more than helpful to have a sound understanding of the basics of Elasticsearch and its querying concepts. This chapter will help you get more familiar with Elasticsearch, enable you to work with mappings, and write a full-text search and aggregation queries to get an insight from your indexed data.

In this chapter, we will cover the following topics:

  • Knowing search and Elasticsearch

  • Talking to Elasticsearch

  • Controlling the indexing process

  • Elastic searching

  • Performing aggregations