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What can be optimum value for Reducer?


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More MapReduce Interview Questions

Explain what you understand by speculative execution

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What is Reduce only jobs?

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What are the main configuration parameters in a MapReduce program?

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Explain the Reducer's Sort phase?

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What is identity mapper and reducer? In which cases can we use them?

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Explain the process of spilling in Hadoop MapReduce?

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What is SequenceFileInputFormat in Hadoop MapReduce?

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What do you understand by compute and storage nodes?

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What is the need of MapReduce in Hadoop?

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What do sorting and shuffling do?

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What is RecordReader in a Map Reduce?

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what is JobTracker in Hadoop? What are the actions followed by Hadoop?

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