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


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More MapReduce Interview Questions

How is mapreduce related to cloud computing?

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Developing a MapReduce Application?

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Name job control options specified by mapreduce.

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It can be possible that a Job has 0 reducers?

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What is a IdentityMapper and IdentityReducer in MapReduce ?

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What is Text Input Format?

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What is the need of MapReduce in Hadoop?

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What combiners are and when you should use a combiner in a mapreduce job?

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How to create custom key and custom value in MapReduce Job?

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What is a Distributed Cache in Hadoop?

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What is KeyValueTextInputFormat in Hadoop MapReduce?

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What is the key- value pair in Hadoop MapReduce?

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