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What is MapReduce? What are the syntax you use to run a MapReduce program?
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What combiners are and when you should utilize a combiner in a map reduce job?
How do ‘map’ and ‘reduce’ work?
Is it legal to set the number of reducer task to zero? Where the output will be stored in this case?
What is mapreduce algorithm?
What is OutputCommitter?
What is shuffling in mapreduce?
Detail description of the Reducer phases?
What are the four basic parameters of a reducer?
What are mapreduce new and old apis while writing map reduce program?. Explain how it works
How many InputSplits is made by a Hadoop Framework?
How to change the name of the output file from part-r-00000 in Hadoop MapReduce?
Explain what is distributed cache in mapreduce framework?
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