What happen if the number of the reducer is 0 in MapReduce?
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When should you use a reducer?
What is the process of changing the split size if there is limited storage space on Commodity Hardware?
Which are the methods in the mapper interface?
what is NameNode in Hadoop?
Which Sorting algorithm is used in Hadoop MapReduce?
Explain how do ‘map’ and ‘reduce’ work?
What is the function of mapreducer partitioner?
What do you mean by shuffling and sorting in MapReduce?
What is Distributed Cache in the MapReduce Framework?
how Hadoop is different from other data processing tools?
What are the benefits of Spark over MapReduce?
What do sorting and shuffling do?