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  1. Categories >> Software >> Big Data >> Hadoop >> MapReduce
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What is RecordReader in a Map Reduce?

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More MapReduce Interview Questions

What do you understand by the term Straggler ?

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Is it possible to rename the output file?

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Which interface needs to be implemented to create Mapper and Reducer for the Hadoop?

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What is the difference between an RDBMS and Hadoop?

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How many numbers of reducers run in Map-Reduce Job?

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What is the data storage component used by Hadoop?

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What is the next step after Mapper or MapTask?

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Developing a MapReduce Application?

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

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Explain what you understand by speculative execution

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What is heartbeat in hdfs?

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What are the various InputFormats in Hadoop?

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