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what happens in textinformat ?
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What is Counter in MapReduce?
Is it possible to rename the output file?
What do you mean by inputformat?
Does mapreduce programming model provide a way for reducers to communicate with each other? In a mapreduce job can a reducer communicate with another reducer?
What is the best way to copy files between HDFS clusters?
Explain the process of spilling in MapReduce?
What is MapReduce? What are the syntax you use to run a MapReduce program?
when do reducers play their role in a mapreduce task?
Explain combiners.
What counter in Hadoop MapReduce?
Explain what are the basic parameters of a mapper?
How will you submit extra files or data ( like jars, static files, etc. ) For a mapreduce job during runtime?
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