what is Speculative Execution?


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More MapReduce Interview Questions

What is a scarce system resource?

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How is reporting controlled in hadoop?

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what are the main configuration parameters that user need to specify to run Mapreduce Job ?

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For a Hadoop job, how will you write a custom partitioner?

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How to set which framework would be used to run mapreduce program?

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Why MapReduce uses the key-value pair to process the data?

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What is heartbeat in hdfs?

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What is Shuffling and Sorting in a MapReduce?

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How much space will the split occupy in Mapreduce?

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Explain what is the function of mapreduce partitioner?

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How to write MapReduce Programs?

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What are the main components of MapReduce Job?

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