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What is the key- value pair in Hadoop MapReduce?
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Define MapReduce?
Mention what are the main configuration parameters that user need to specify to run mapreduce job?
In MapReduce how to change the name of the output file from part-r-00000?
What is reduce side join in mapreduce?
What is the function of mapreducer partitioner?
How can we control particular key should go in a specific reducer?
What is the Reducer used for?
Define speculative execution?
what is the Hadoop MapReduce APIs contract for a key and value class?
What is MapReduce? What are the syntax you use to run a MapReduce program?
Why Hadoop MapReduce?
What is a partitioner and how the user can control which key will go to which reducer?
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