Chapter 5. Analytics Using Elasticsearch

Over the years, the digital world has witnessed a tremendous explosion of data. With storage space cost rapidly decreasing, the world becoming a smaller place, and the rise in communication technology, the amount of data that can be stored and processed has rocketed. As it is almost impossible for human beings to make sense of this much data manually, the requirement for data analytics was born.

With petabytes of data sitting in their databases, users come up with use cases where they could crunch their data and bring in some great observations and powerful insight. This information could later be converted to insights on the basis of which we could take actions for the business and management world. This particular technology has wide spread application over a variety of domains. Retailers can use such insight to understand the preferences, trends, and usage patterns of customers to improve their services. In finance, data analytics could...