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What is partitioner and its usage?
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More MapReduce Interview Questions
What is a IdentityMapper and IdentityReducer in MapReduce ?
What is Shuffling and Sorting in a MapReduce?
What is RecordReader in a Map Reduce?
What is a Distributed Cache in Hadoop?
Explain how do ‘map’ and ‘reduce’ work?
For a job in Hadoop, is it possible to change the number of mappers to be created?
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