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What is a "map" in Hadoop?


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More MapReduce Interview Questions

What is InputFormat in Hadoop MapReduce?

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When should you use a reducer?

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What are the fundamental configurations parameters specified in map reduce?

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What is MapReduce in Hadoop?

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Explain what you understand by speculative execution

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Define MapReduce?

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What do you mean by shuffling and sorting in MapReduce?

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What is the role of recordreader in hadoop mapreduce?

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What happens when a datanode fails ?

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What happens when a DataNode fails during the write process?

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Differentiate Reducer and Combiner in Hadoop MapReduce?

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What is the function of mapreduce partitioner?

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