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MapReduce is a programming model and software framework for writing applications that rapidly process vast amounts of data in parallel on large clusters of compute nodes.


The Apache Hadoop project develops open-source software for reliable, scalable, distributed computing and an open source implementation of the MapReduce algorithm.



Apache Spark is a fast and general engine for large-scale data processing. Spark runs on Hadoop (using YARN), Mesos, standalone, or in the cloud. It can access diverse data sources including HDFS, Cassandra, HBase, and S3.



External Links

See Also

NoSQL | ML | Mahout
  1. Hadoop Security Basics (In Under 5 Minutes):