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Explain how do ‘map’ and ‘reduce’ work?


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More MapReduce Interview Questions

What are ‘maps’ and ‘reduces’?

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Mention Hadoop core components?

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What does a split do?

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Define MapReduce?

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When is it not recommended to use MapReduce paradigm for large

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How hadoop mapreduce works?

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What is identity mapper and identity reducer?

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What are the steps involved in MapReduce framework?

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What is the key- value pair in Hadoop MapReduce?

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