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


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More MapReduce Interview Questions

What is a distributed cache in mapreduce framework?

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Explain the features of Apache Spark because of which it is superior to Apache MapReduce?

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How to overwrite an existing output file during execution of mapreduce jobs?

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Mention Hadoop core components?

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

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List the network requirements for using Hadoop ?

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What is difference between a MapReduce InputSplit and HDFS block

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Mention what is the next step after mapper or maptask?

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Name job control options specified by mapreduce.

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Why is Apache Spark faster than Hadoop MapReduce?

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In MapReduce Data Flow, when Combiner is called?

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Difference between mapreduce and spark

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