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Explain the differences between a combiner and reducer
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Is it possible to search for files using wildcards?
Developing a MapReduce Application?
What happen if the number of the reducer is 0 in MapReduce?
In MapReduce, ideally how many mappers should be configured on a slave?
What is Shuffling and Sorting in a MapReduce?
What is a "map" in Hadoop?
For a Hadoop job, how will you write a custom partitioner?
What is the job of blend () and repartition () in Map Reduce?
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 MapReduce?
how to proceed to write your first mapreducer program?
What is the fundamental difference between a MapReduce InputSplit and HDFS block?
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