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Hadoop is an open-source software framework written in Java for distributed storage.

    H ado op is an open - source software framework written in Java for distributed storage.   H ado op is an open - source software framework written in Java for distributed storage and distributed processing of large data sets on computer clusters built from commodity hardware . It provides a distributed file system (HDFS) that stores data on commodity machines, providing very high aggregate bandwidth across the cluster. It also provides a distributed processing platform (MapReduce) based on the Java programming language. Hadoop is designed to scale up from single servers to thousands of machines, each offering local computation and storage. Hado op' s dis tr ib u t ed fi le sys tem f a cilita tes rapid data tran sfer rat es among nod es and allow s the sy stem to continue operating uni nterru pted in ca se of a node failure. The b ase A pache Hado op framew o rk is composed of the following modules: Hadoop Common, Hadoop Distr...