How many Mappers run for a MapReduce job in Hadoop?


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More MapReduce Interview Questions

how can you debug Hadoop code?

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Can we set the number of reducers to zero in MapReduce?

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Explain how mapreduce works.

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Define the Use of MapReduce?

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what is WebDAV in Hadoop?

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What is the need of key-value pair to process the data in MapReduce?

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What is the difference between Reducer and Combiner in Hadoop MapReduce?

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What is a partitioner and how the user can control which key will go to which reducer?

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Does mapreduce programming model provide a way for reducers to communicate with each other? In a mapreduce job can a reducer communicate with another reducer?

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What is the difference between an RDBMS and Hadoop?

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What counter in Hadoop MapReduce?

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With the help of two examples name the map and reduce function purpose

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