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  1. Categories >> Software >> Big Data >> Hadoop >> MapReduce
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What are the identity mapper and reducer in MapReduce?

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More MapReduce Interview Questions

Explain how mapreduce works.

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What is identity mapper and reducer? In which cases can we use them?

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What is the difference between an RDBMS and Hadoop?

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How to configure the number of the Combiner in MapReduce?

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

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How many Mappers run for a MapReduce job?

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how indexing in HDFS is done?

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What are the data components used by Hadoop?

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Explain InputSplit in Hadoop MapReduce?

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what is distributed cache in mapreduce framework?

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Developing a MapReduce Application?

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

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