What is the Reducer used for?
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What is the role of a MapReduce partitioner?
What is the InputSplit in map reduce ?
Why comparison of types is important for MapReduce?
Different ways of debugging a job in MapReduce?
How to specify more than one directory as input to the MapReduce Job?
what are the basic parameters of a Mapper?
What is the inputsplit in map reduce software?
What is KeyValueTextInputFormat in Hadoop MapReduce?
How hadoop mapreduce works?
How do you stop a running job gracefully?
Define the purpose of the partition function in mapreduce framework
When the reducers are are started in a mapreduce job?
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