What is the difference between map and reduce?


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More MapReduce Interview Questions

What are the primary phases of a Reducer?

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Explain slot in Hadoop Map-Reduce v1?

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What is MapReduce in Hadoop?

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When Namenode is down what happens to job tracker?

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What do you understand by the term Straggler ?

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What is the relationship between Job and Task in Hadoop?

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What is difference between an input split and hdfs block?

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What happens when the node running the map task fails before the map output has been sent to the reducer?

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What is the inputsplit in map reduce software?

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What is Counter in MapReduce?

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What is sqoop in Hadoop ?

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What is Hadoop Map Reduce ?

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