What is the input type/format in MapReduce by default?


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More MapReduce Interview Questions

Explain slot in Hadoop Map-Reduce v1?

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What is a map side join?

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What is a partitioner and how the user can control which key will go to which reducer?

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What is the difference between an RDBMS and Hadoop?

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How to set mappers and reducers for Hadoop jobs?

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Explain how mapreduce works.

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Differentiate Reducer and Combiner in Hadoop MapReduce?

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What is the difference between RDBMS with Hadoop MapReduce?

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What is partitioner and its usage?

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What is the relation between MapReduce and Hive?

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What platform and Java version is required to run Hadoop?

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Why Mapper runs in heavy weight process and not in a thread in MapReduce?

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