摘要：
1——What's Mapreduce.(How does Mapreduce works?)Mapreduce is a progarmming model to process data process.Mapduce works by breaking the processing into two phases:the map phase and the reduce phase.Each phase has key-value pairs as input and output,the types of which can be chosen by programmers.( 阅读全文
posted @ 2014-03-29 13:23
随风888
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