What is a MapReduce Combiner?
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What does a 'MapReduce Partitioner' do?
What are the fundamental configurations parameters specified in map reduce?
List the configuration parameters that have to be specified when running a MapReduce job.
What is Data Locality in Hadoop?
What happens when the node running the map task fails before the map output has been sent to the reducer?
What is the use of InputFormat in MapReduce process?
Explain what does the conf.setmapper class do?
Define Writable data types in MapReduce?
What are mapreduce new and old apis while writing map reduce program?. Explain how it works
Which interface needs to be implemented to create Mapper and Reducer for the Hadoop?
what are the basic parameters of a Mapper?
How hadoop mapreduce works?
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