How can you add the arbitrary key-value pairs in your mapper?


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More MapReduce Interview Questions

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

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What are the the issues associated with the map and reduce slots based mechanism in mapReduce?

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Explain about the partitioning, shuffle and sort phase in MapReduce?

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What is a combiner and where you should use it?

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Is Mapreduce Required For Impala? Will Impala Continue To Work As Expected If Mapreduce Is Stopped?

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What is a TaskInstance?

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What is the role of a MapReduce partitioner?

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What is the key- value pair in Hadoop MapReduce?

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What is sqoop in Hadoop ?

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What do you know about nlineinputformat?

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Which are the methods in the mapper interface?

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What is partitioner and its usage?

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