Define MapReduce?
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What is shuffling in mapreduce?
What are the benefits of Spark over MapReduce?
How to change the name of the output file from part-r-00000 in Hadoop MapReduce?
Explain the process of spilling in Hadoop MapReduce?
what happens in textinformat ?
what is Speculative Execution?
What is the default input type in MapReduce?
What is the role of recordreader in hadoop mapreduce?
Explain about the partitioning, shuffle and sort phase in MapReduce?
What is the need of MapReduce in Hadoop?
Which interface needs to be implemented to create Mapper and Reducer for the Hadoop?
Why Mapper runs in heavy weight process and not in a thread in MapReduce?
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