BigDataFr recommends: Making data science accessible – MapReduce

[…]What is MapReduce?

When people talk about ‘Hadoop’ they are usually referring to either the efficient storing or processing of large amounts of data. The standard approach to reliable, scalable data storage in Hadoop is through the use of HDFS (Hadoop Distributed File System) which may be a topic for a future blog. MapReduce is a framework for efficient processing using a parallel, distributed algorithm. Over the past 18 months we have used MapReduce for a variety of analytic needs, building up use cases as we went along. […]

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By Dan Kellet
Source: analyticbridge.com