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How to set the number of reducers?


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More MapReduce Interview Questions

Describe what happens to a mapreduce job from submission to output?

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How to set the number of mappers to be created in MapReduce?

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Explain what you understand by speculative execution

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What is an input reader in reference to mapreduce?

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what happens when Hadoop spawned 50 tasks for a job and one of the task failed?

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What is a map side join?

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What is the difference between Job and Task in MapReduce?

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Is it necessary to write a mapreduce job in java?

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Where the mapper's intermediate data will be stored?

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What do sorting and shuffling do?

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What is a "map" in Hadoop?

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What is a IdentityMapper and IdentityReducer in MapReduce ?

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