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Why can aggregation not be done in Mapper in MapReduce?
How to submit extra files(jars, static files) for MapReduce job during runtime?
How many numbers of reducers run in Map-Reduce Job?
What is MapReduce? What are the syntax you use to run a MapReduce program?
Explain slot in Hadoop Map-Reduce v1?
What happen if the number of the reducer is 0 in MapReduce?
What is the need of key-value pair to process the data in MapReduce?
What are the main configuration parameters in a MapReduce program?
What do you mean by shuffling and sorting in MapReduce?
What is Combiner in MapReduce?
Where sorting is done in Hadoop MapReduce Job?
What are the configuration parameters in the 'MapReduce' program?
How many times combiner is called on a mapper node in Hadoop?
Explain about the partitioning, shuffle and sort phase in MapReduce?
Does Partitioner run in its own JVM or shares with another process?
