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Which interface needs to be implemented to create Mapper and Reducer for the Hadoop?
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What are the four basic parameters of a reducer?
How to set mappers and reducers for MapReduce jobs?
Explain Working of MapReduce?
What are the various configuration parameters required to run a mapreduce job?
How many times combiner is called on a mapper node in Hadoop?
Clarify what is shuffling in map reduce?
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