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what does the conf.setMapper Class do ?
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Explain the difference between a MapReduce InputSplit and HDFS block?
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Explain what does the conf.setMapper Class do in MapReduce?
What is the need of MapReduce?
What do you understand by mapreduce?
Why Mapper runs in heavy weight process and not in a thread in MapReduce?
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what is WebDAV in Hadoop?
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