How does MapReduce framework view its input internally?


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More MapReduce Interview Questions

Developing a MapReduce Application?

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What happens when a datanode fails ?

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What are combiners? When should I use a combiner in my MapReduce Job?

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What platform and Java version is required to run Hadoop?

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what job does the conf class do?

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What is identity mapper and identity reducer?

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Explain the input type/format in mapreduce by default?

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What is a map side join?

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What are the four essential parameters of a mapper?

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In MapReduce, ideally how many mappers should be configured on a slave?

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

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mapper or reducer?

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