Explain what is shuffling in mapreduce?
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What are the various configuration parameters required to run a mapreduce job?
How is reporting controlled in hadoop?
What is the role of recordreader in hadoop mapreduce?
Where the mapper's intermediate data will be stored?
Why Hadoop MapReduce?
Explain what are the basic parameters of a mapper?
What is the function of mapreducer partitioner?
What is Shuffling and Sorting in a MapReduce?
Explain combiners.
Explain how do ‘map’ and ‘reduce’ work?
How many Mappers run for a MapReduce job?
What is the difference between an RDBMS and Hadoop?
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