What is a RecordReader in Hadoop MapReduce?


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More MapReduce Interview Questions

What is the use of InputFormat in MapReduce process?

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Can we set the number of reducers to zero in MapReduce?

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What happen if the number of the reducer is 0 in MapReduce?

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Define speculative execution?

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Compare Pig vs Hive vs Hadoop MapReduce?

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When should you use a reducer?

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What is the key- value pair in MapReduce?

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What is a IdentityMapper and IdentityReducer in MapReduce ?

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What do you understand by the term Straggler ?

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List the network requirements for using Hadoop ?

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Explain what are the basic parameters of a mapper?

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What is a TaskInstance?

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