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What is the fundamental difference between a MapReduce Split and a HDFS block?scale data processing?
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When should you use a reducer?
Whether the output of mapper or output of partitioner written on local disk?
What is a MapReduce Combiner?
What are the configuration parameters in the 'MapReduce' program?
Is it important for Hadoop MapReduce jobs to be written in Java?
Explain how do ‘map’ and ‘reduce’ work?
What are the main components of MapReduce Job?
Why is output file name in Hadoop MapReduce part-r-00000?
How many numbers of reducers run in Map-Reduce Job?
What is the utility of using Writable Comparable Custom Class in Map Reduce code?
What are the advantages of using mapreduce with hadoop?
What is reduce side join in mapreduce?
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