Book Image

Learning Elasticsearch

By : Abhishek Andhavarapu
Book Image

Learning Elasticsearch

By: Abhishek Andhavarapu

Overview of this book

Elasticsearch is a modern, fast, distributed, scalable, fault tolerant, and open source search and analytics engine. You can use Elasticsearch for small or large applications with billions of documents. It is built to scale horizontally and can handle both structured and unstructured data. Packed with easy-to- follow examples, this book will ensure you will have a firm understanding of the basics of Elasticsearch and know how to utilize its capabilities efficiently. You will install and set up Elasticsearch and Kibana, and handle documents using the Distributed Document Store. You will see how to query, search, and index your data, and perform aggregation-based analytics with ease. You will see how to use Kibana to explore and visualize your data. Further on, you will learn to handle document relationships, work with geospatial data, and much more, with this easy-to-follow guide. Finally, you will see how you can set up and scale your Elasticsearch clusters in production environments.
Table of Contents (11 chapters)
10
Exploring Elastic Stack (Elastic Cloud, Security, Graph, and Alerting)

Geo data type

In the previous sections, we discussed the simple and complex data types Elasticsearch supports. In this section, how to store location-based data. Elasticsearch makes it very easy to work with location-based queries, such as querying within a radius, aggregations based on location, sorting by location, and so on. With the rapid growth of mobile, location is one of the key factors driving the search results. To run location-based queries, you have to set the field data type to geo.

Elasticsearch supports two data types to store location-based data:

  • geo-point: This is used to store the longitude and latitude of a location.
  • geo-shape: This is used to store geo shapes, such as circles and polygons.

In this section, we will only discuss how to set the mapping for the geo-point data type. The geo-shape data type is for storing geo shapes. To know more about geo-shape...