Learn how to use Elasticsearch, an open source, distributed, RESTful search engine built on top of Apache Lucene. Each chapter in this book tackles a particular facet of Elasticsearch with separate sections for beginners more advanced programmers. If you’re a beginner, advanced techniques are not required reading, but you can revisit them once you have a solid understanding of the basics.This book explains concepts such as full text search, near real time visibility of search data, lack of transactions, and NoSQL-style denormalization from first principles, enabling beginners to glean sufficient information to get up and running with Elasticsearch.