How to create custom key and custom value in MapReduce Job?


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More MapReduce Interview Questions

Developing a MapReduce Application?

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

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

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What is a mapreduce algorithm?

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What are advantages of Spark over MapReduce?

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how to proceed to write your first mapreducer program?

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When should you use sequencefileinputformat?

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What are the identity mapper and reducer in MapReduce?

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How many Reducers run for a MapReduce job?

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List out Hadoop's three configuration files?

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When is the reducers are started in a MapReduce job?

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Explain the input type/format in mapreduce by default?

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