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How to create custom key and custom value in MapReduce Job?
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what are the main configuration parameters that user need to specify to run Mapreduce Job ?
What is shuffling and sorting in mapreduce?
Where the mapper's intermediate data will be stored?
Explain what is distributed cache in mapreduce framework?
What is a IdentityMapper and IdentityReducer in MapReduce ?
Why comparison of types is important for MapReduce?
Can you tell us how many daemon processes run on a hadoop system?
What are the main components of MapReduce Job?
Explain the Reducer's Sort phase?
What are combiners? When should I use a combiner in my MapReduce Job?
Define MapReduce?
What is the need of MapReduce?
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