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Big data is defined by its qualities, also called 4 V’s - Veracity, Variety, Velocity, and Volume. From healthcare to manufacturing, to retail to the entertainment industry, big data is everywhere. Big data helps IT experts deal with several sets of complex real-time data analytics, data mining, data visualization, and data storage. Elasticsearch is a free open search distributed analytics engine. Apache Hadoop is a popular open-source framework or data platform which was developed and deployed in Java.