What is MapReduce?
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Answer / bindu
It is data processing layer of hadoop.map and reduce are the two tasks for processing data in hadoop.
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Write a Mapreduce Program for Character Count ?
What is shuffling and sorting in mapreduce?
Can you tell us how many daemon processes run on a hadoop system?
What is partitioner and its usage?
What does conf.setmapper class do?
What happen if the number of the reducer is 0 in MapReduce?
Which interface needs to be implemented to create Mapper and Reducer for the Hadoop?
what happens in textinformat ?
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?
Explain what is shuffling in mapreduce?
Is it possible to rename the output file?
What is the use of InputFormat in MapReduce process?
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