Elasticsearch is a JSON-based Big data search and analytics engine. It is a distributed, RESTful search and analytics engine for solving numbers of use cases. It offers horizontal scalability, maximum reliability, and easy management. Features: It allows combine many types of searches such as structured, unstructured, geo, metric, etc Intuitive APIs for monitoring and management give complete visibility and control It uses standard RESTful APIs and JSON. It also builds and maintains clients in many languages like Java, Python, NET, and Groovy Real-time search and analytics features to work big data by using the Elasticsearch-Hadoop It gives an enhanced experience with security, monitoring, reporting, and machine learning features