Why MapReduce uses the key-value pair to process the data?
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Clarify what is shuffling in map reduce?
What are the main configuration parameters in a MapReduce program?
What are the four basic parameters of a reducer?
What are the configuration parameters in the 'MapReduce' program?
What is mapreduce algorithm?
Explain the process of spilling in Hadoop MapReduce?
Where is the output of Mapper written in Hadoop?
What is the need of key-value pair to process the data in MapReduce?
Explain combiners.
What is an identity mapper and identity reducer?
What is Counter in MapReduce?
What is identity mapper and chain mapper?
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