Is reduce-only job possible in Hadoop MapReduce?


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More MapReduce Interview Questions

What do you mean by data locality?

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Is it mandatory to set input and output type/format in MapReduce?

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Explain combiners.

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What is the difference between Job and Task in MapReduce?

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List the configuration parameters that have to be specified when running a MapReduce job.

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Is it possible to rename the output file?

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What is a map side join?

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Explain what you understand by speculative execution

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Define Writable data types in Hadoop MapReduce?

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What is a Distributed Cache in Hadoop?

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When is it not recommended to use MapReduce paradigm for large

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What are ‘reduces’?

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