What is the Hadoop MapReduce API contract for a key and value Class?


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More MapReduce Interview Questions

Mention what is the hadoop mapreduce apis contract for a key and value class?

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What is a distributed cache in mapreduce framework?

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When is the reducers are started in a MapReduce job?

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Where the mapper's intermediate data will be stored?

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What do you know about nlineinputformat?

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Why MapReduce uses the key-value pair to process the data?

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How does fault tolerance work in mapreduce?

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How many Mappers run for a MapReduce job in Hadoop?

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What is the problem with the small file in Hadoop?

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What does conf.setmapper class do?

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What are the advantages of using mapreduce with hadoop?

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Is it possible to rename the output file?

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