Welcome to Learning Elasticsearch. We will start by describing the basic concepts of Elasticsearch. You will see how to install Elasticsearch and Kibana and learn how to index and update your data. We will use an e-commerce site as an example to explain how a search engine works and how to query your data. The real power of Elasticsearch is aggregations. You will see how to perform aggregation-based analytics with ease. You will also see how to use Kibana to explore and visualize your data. Finally, we will discuss how to use Graph to discover relations in your data and use alerting to set up alerts and notification on different trends in your data.
To better explain various concepts, lots of examples have been used throughout the book. Detailed instructions to install Elasticsearch, Kibana and how to execute the examples is included in Chapter 2, Setting Up Elasticsearch and Kibana.
