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What is the key- value pair in Hadoop MapReduce?


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More MapReduce Interview Questions

How is Spark not quite the same as MapReduce? Is Spark quicker than MapReduce?

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How does inputsplit in mapreduce determines the record boundaries correctly?

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Explain about the basic parameters of mapper and reducer function

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What is OutputCommitter?

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How many Reducers run for a MapReduce job in Hadoop?

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How to specify more than one directory as input to the MapReduce Job?

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What can be optimum value for Reducer?

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What combiners is and when you should use a combiner in a MapReduce Job?

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what is the Hadoop MapReduce APIs contract for a key and value class?

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Explain what does the conf.setMapper Class do in MapReduce?

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How to set the number of mappers for a MapReduce job?

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What is the function of mapreduce partitioner?

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