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what is the Hadoop MapReduce APIs contract for a key and value class?


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More MapReduce Interview Questions

How much space will the split occupy in Mapreduce?

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What is the need of key-value pair to process the data in MapReduce?

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What is identity mapper and chain mapper?

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What is the data storage component used by Hadoop?

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What are the advantages of using map side join in mapreduce?

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What is shuffling and sorting in Hadoop MapReduce?

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Explain the process of spilling in MapReduce?

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What is a TaskInstance?

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What is the Hadoop MapReduce API contract for a key and value Class?

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What are ‘reduces’?

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What are the advantages of using mapreduce with hadoop?

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What is heartbeat in hdfs? Explain.

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