How to set the number of mappers to be created in MapReduce?


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More MapReduce Interview Questions

What is KeyValueTextInputFormat in Hadoop MapReduce?

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How to write a custom partitioner for a Hadoop MapReduce job?

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Explain job scheduling through JobTracker

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what does the text input format do?

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What is the utility of using Writable Comparable Custom Class in Map Reduce code?

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Which are the methods in the mapper interface?

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What do you mean by shuffling and sorting in MapReduce?

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Define Writable data types in MapReduce?

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Which interface needs to be implemented to create Mapper and Reducer for the Hadoop?

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What is heartbeat in hdfs?

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What are the steps involved in MapReduce framework?

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What is a map side join?

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