2015 Oct 15, 10:05 2009 Oct 8, 4:59A brief introduction to Hadoop, its history, subprojects, and current status
via:pskomoroch hadoop introduction google yahoo facebook database technical 2009 Oct 6, 3:24The map/reduce tutorial for Hadoop the Apache open source project. "Hadoop Map/Reduce is a software framework for easily writing applications which process vast amounts of data (multi-terabyte
data-sets) in-parallel on large clusters (thousands of nodes) of commodity hardware in a reliable, fault-tolerant manner."
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