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What is MapReduce in Hadoop?
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In Hadoop what is InputSplit?
How to get the single file as the output from MapReduce Job?
What is Output Format in MapReduce?
What is partitioner and its usage?
How much space will the split occupy in Mapreduce?
Explain the sequence of execution of all the components of MapReduce like a map, reduce, recordReader, split, combiner, partitioner, sort, shuffle.
When should you use sequencefileinputformat?
In mapreduce what is a scarce system resource? Explain?
Define Writable data types in Hadoop MapReduce?
How can we control particular key should go in a specific reducer?
how to proceed to write your first mapreducer program?
Name job control options specified by mapreduce.
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