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Define the Use of MapReduce?
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What main configuration parameters are specified in mapreduce?
What is the best way to copy files between HDFS clusters?
How to specify more than one directory as input to the MapReduce Job?
What are advantages of Spark over MapReduce?
What are the main components of MapReduce Job?
What are mapreduce new and old apis while writing map reduce program?. Explain how it works
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?
Differentiate Reducer and Combiner in Hadoop MapReduce?
Explain the process of spilling in MapReduce?
A number of combiners can be changed or not in MapReduce?
How is reporting controlled in hadoop?
How to set mappers and reducers for Hadoop jobs?
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