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Hadoop MapReduce
Big Data
• Over 2.5 quintillion bytes of data are created every single day, and it's only going to grow from there. By 2020, it's estimated that 1.7MB ofdata will be created every second for every person on earth."
• http://www.internetlivestats.com/one-second/
• ./hadoop jar /opt/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.7.2.jar wordcount /license.txt /license-out
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