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Surprise Me!
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By normchow
via radar.oreilly.com
Published: Feb 04 2012 / 10:30

Why Hadoop caught on
Hadoop is a central technology of big data and data science. HDFS is where folks store most of their data, and MapReduce is how they execute most of their analysis. There are some storage alternatives — for example, Cassandra and CouchDB, and useful computing alternatives, like S4, Giraph, etc. — but I don't see any of these replacing HDFS or MapReduce soon as the primary tools for big data.
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