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What is the job of blend () and repartition () in Map Reduce?
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Can MapReduce program be written in any language other than Java?
Explain how do ‘map’ and ‘reduce’ work?
Is it important for Hadoop MapReduce jobs to be written in Java?
Explain the Reducer's reduce phase?
What is the difference between map and reduce?
What are the the issues associated with the map and reduce slots based mechanism in mapReduce?
What MapReduce framework consists of?
Clarify what combiners are and when you should utilize a combiner in a map reduce job?
Clarify what is shuffling in map reduce?
How many Mappers run for a MapReduce job?
What are the main configuration parameters in a MapReduce program?
What are ‘maps’ and ‘reduces’?
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