mapper or reducer?


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More MapReduce Interview Questions

Explain what is the function of mapreduce partitioner?

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How to write a custom partitioner for a Hadoop MapReduce job?

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Explain job scheduling through JobTracker

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Developing a MapReduce Application?

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What is the best way to copy files between HDFS clusters?

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What is Shuffling and Sorting in a MapReduce?

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Why MapReduce uses the key-value pair to process the data?

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Where is the output of Mapper written in Hadoop?

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In Hadoop, which file controls reporting in Hadoop?

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when do reducers play their role in a mapreduce task?

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What is an input reader in reference to mapreduce?

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Name job control options specified by mapreduce.

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