Preface

Welcome to the ElasticSearch Server book. While reading this book, you will be taken on a journey to the wonderful world of full-text search provided by ElasticSearch enterprise search server. We will start with a general introduction to ElasticSearch, which covers how to start and run ElasticSearch and how to configure it using both configuration files and the REST API. You will also learn how to create your index structure and tell ElasticSearch about it, how to configure different analyses for fields, and how to use the built-in data types.

This book will also discuss the query language, the so-called Query DSL, that allows you to create complicated queries and filter returned results. In addition to all that, you'll see how you can use faceting to calculate aggregated data based on the results returned by your queries. We will implement the autocomplete functionality together and will learn how to use ElasticSearch's spatial capabilities and how to use prospective search.

Finally, this book will show you some capabilities of the ElasticSearch administration API, with features such as shard placement control, cluster handling, and more. In addition to all that, you'll learn how to overcome some common problems that can come up on your journey with ElasticSearch server.