How to set mappers and reducers for Hadoop jobs?
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What do sorting and shuffling do?
Define MapReduce?
Detail description of the Reducer phases?
What is an identity mapper and identity reducer?
What is the function of mapreducer partitioner?
Describe what happens to a mapreduce job from submission to output?
What are the advantages of using mapreduce with hadoop?
What happens if the quantity of the reducer is 0 in mapreduce?
Why is Apache Spark faster than Hadoop MapReduce?
What is Output Format in MapReduce?
What is optimal size of a file for distributed cache?
How to submit extra files(jars, static files) for Hadoop MapReduce job during runtime?