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)

Sample data

To better explain the various concepts in this chapter, we will use the e-commerce site as an example. We will create an index with a list of products. This will be a very simple index called chapter6 with type called product. The mapping for the product type is shown here:

 #Delete existing index if any
DELETE chapter6

#Mapping
PUT chapter6
{
"settings": {},
"mappings": {
"product": {
"properties": {
"product_name": {
"type": "text",
"analyzer": "english"
},
"description" : {
"type": "text",
"analyzer": "english"
}
}
}
}
}

For the product_name and description fields, the English analyzer will be used instead of the default standard...