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How to create custom key and custom value in MapReduce Job?


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More MapReduce Interview Questions

Explain what does the conf.setMapper Class do in MapReduce?

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Explain JobConf in MapReduce.

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Explain what you understand by speculative execution

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What is an input reader in reference to mapreduce?

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How to compress mapper output in Hadoop?

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Can we rename the output file?

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Define Writable data types in Hadoop MapReduce?

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Explain what is distributed cache in mapreduce framework?

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Is it possible to search for files using wildcards?

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What is the fundamental difference between a MapReduce InputSplit and HDFS block?

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What is a Speculative Execution in Hadoop MapReduce?

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Explain how do ‘map’ and ‘reduce’ work?

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