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What is the role of a MapReduce partitioner?
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How does inputsplit in mapreduce determines the record boundaries correctly?
How can we assure that the values regarding a particular key goes to the same reducer?
How will you submit extra files or data ( like jars, static files, etc. ) For a mapreduce job during runtime?
How does Hadoop Classpath plays a vital role in stopping or starting in Hadoop daemons?
How much space will the split occupy in Mapreduce?
Define MapReduce?
Where sorting is done on mapper node or reducer node in MapReduce?
What is the function of mapreducer partitioner?
what are the most common input formats defined in Hadoop?
When should you use sequencefileinputformat?
What are the the issues associated with the map and reduce slots based mechanism in mapReduce?
What is mapper in map reduce?
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