How many Mappers run for a MapReduce job?


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More MapReduce Interview Questions

What counter in Hadoop MapReduce?

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Whether the output of mapper or output of partitioner written on local disk?

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What are the key differences between Pig vs MapReduce?

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What does conf.setmapper class do?

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What main configuration parameters are specified in mapreduce?

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what happens in textinformat ?

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What happens when the node running the map task fails before the map output has been sent to the reducer?

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Explain what are the basic parameters of a mapper?

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What is Text Input Format?

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What are the main configuration parameters in a MapReduce program?

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Where sorting is done in Hadoop MapReduce Job?

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Mention what are the main configuration parameters that user need to specify to run mapreduce job?

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