Mention what is the hadoop mapreduce apis contract for a key and value class?
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What is MapReduce in Hadoop?
Can we set the number of reducers to zero in MapReduce?
What are the main configuration parameters in a MapReduce program?
What is SequenceFileInputFormat in Hadoop MapReduce?
what is "map" and what is "reducer" in Hadoop?
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what is storage and compute nodes?
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What is shuffling in mapreduce?
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