Hadoop is a Big Data tool that is written into Java to analyze and handle a very large size data using cheaper systems/servers. It is also known for it’s efficient and reliable storage technique. Hadoop works on MapReduce Programming Algorithm and Master-Slave architecture. Top Companies like Facebook, Yahoo, Netflix, eBay, etc. are using Hadoop in their Organization to find a solution for Big data problems. High-end processing frameworks like Apache Spark, Amazon S3, Databricks are built on top of Hadoop.

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