Book Overview & Buying
Table Of Contents

Elasticsearch 7 Quick Start Guide

By : Srivastava, Miller

1.3 (3)

Buy this Book

Elasticsearch 7 Quick Start Guide

1.3 (3)

By: Srivastava, Miller

Buy this Book

Overview of this book

Elasticsearch is one of the most popular tools for distributed search and analytics. This Elasticsearch book highlights the latest features of Elasticsearch 7 and helps you understand how you can use them to build your own search applications with ease. Starting with an introduction to the Elastic Stack, this book will help you quickly get up to speed with using Elasticsearch. You'll learn how to install, configure, manage, secure, and deploy Elasticsearch clusters, as well as how to use your deployment to develop powerful search and analytics solutions. As you progress, you'll also understand how to troubleshoot any issues that you may encounter along the way. Finally, the book will help you explore the inner workings of Elasticsearch and gain insights into queries, analyzers, mappings, and aggregations as you learn to work with search results. By the end of this book, you'll have a basic understanding of how to build and deploy effective search and analytics solutions using Elasticsearch.

Preface

Who this book is for

What this book covers

To get the most out of this book

Get in touch

Free Chapter

Introduction to Elastic Stack

Brief history and background

Why use Elasticsearch?

What is log analysis?

Elastic Stack architecture

Use cases of the Elastic Stack

Summary

Installing Elasticsearch

Installation of Elasticsearch

Summary

Many as One – the Distributed Model

API conventions

Summary

Prepping Your Data – Text Analysis and Mapping

What is an analyzer?

Anatomy of an analyzer

Mapping

Summary

Let's Do a Search!

Introduction to data search

Search API

Summary

Performance Tuning

Data sparsity

Summary

Aggregating Datasets

What is an aggregation framework?

Metrics aggregations

Bucket aggregations

Pipeline aggregations

Matrix aggregations

Summary

Best Practices

Failure to obtain the required data

The best cluster configuration approaches

Data backup and snapshots

Data Analytics using Elasticsearch

Summary

Other Books You May Enjoy

Leave a review - let other readers know what you think

Search API

The search API performs a search using a query string, a parameter, or a request body as the search criteria, and then it returns exact matches. The multi-index syntax is used by most search APIs to search over multiple indices, as follows:

Users can search all of the documents in a specific index using the cactus_flower user:

GET facebook/_search?q=user:cactus_flower

This can also be applied using a tag:

GET facebook/_search?q=tag:wow

To search all the indices, use the _all tag instead of the index name:

GET _all/_search?q=tag:wow

In the preceding query, we can query through all the available Elasticsearch indices for the tag using wow. Now, let's see how we can perform a URI-based search in Elasticsearch.