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mapper or reducer?
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More MapReduce Interview Questions
It can be possible that a Job has 0 reducers?
Why Mapreduce output written in local disk?
Detail description of the Reducer phases?
What is the difference between Job and Task in MapReduce?
Where sorting is done on mapper node or reducer node in MapReduce?
What is the difference between an RDBMS and Hadoop?
Clarify what combiners are and when you should utilize a combiner in a map reduce job?
What is identity mapper and reducer? In which cases can we use them?
Which are the methods in the mapper interface?
Can we rename the output file?
What is shuffleing in mapreduce?
Define Writable data types in MapReduce?
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