What is the utility of using Writable Comparable Custom Class in Map Reduce code?
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What is MapReduce? What are the syntax you use to run a MapReduce program?
what is storage and compute nodes?
How do reducers communicate with each other?
A number of combiners can be changed or not in MapReduce?
What are the advantages of using map side join in mapreduce?
What is a MapReduce Combiner?
what is a sequence file in Hadoop?
Where sorting is done in Hadoop MapReduce Job?
What does a 'MapReduce Partitioner' do?
What are the advantages of using mapreduce with hadoop?
What is SequenceFileInputFormat?
What do you know about nlineinputformat?
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