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What is the need of MapReduce in Hadoop?
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What are the fundamental configurations parameters specified in map reduce?
what is "map" and what is "reducer" in Hadoop?
Explain about the basic parameters of mapper and reducer function
What is the difference between a MapReduce InputSplit and HDFS block?
How to set the number of mappers for a MapReduce job?
What do you mean by shuffling and sorting in MapReduce?
How is reporting controlled in hadoop?
What is a RecordReader in Hadoop MapReduce?
What happens if the quantity of the reducer is 0 in mapreduce?
Why Mapper runs in heavy weight process and not in a thread in MapReduce?
What is a MapReduce Combiner?
What is a Distributed Cache in Hadoop?
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