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What is the Reducer used for?
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More MapReduce Interview Questions
In MapReduce Data Flow, when Combiner is called?
Where sorting is done on mapper node or reducer node in MapReduce?
What is the default input type in MapReduce?
What is MapReduce in Hadoop?
What are the various InputFormats in Hadoop?
What is Reduce only jobs?
Why Mapreduce output written in local disk?
What happen if the number of the reducer is 0 in MapReduce?
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With the help of two examples name the map and reduce function purpose
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