Describe what happens to a mapreduce job from submission to output?
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Explain task granularity
Where is Mapper output stored?
What is SequenceFileInputFormat in Hadoop MapReduce?
What MapReduce framework consists of?
Why do we need MapReduce during Pig programming?
What is a Distributed Cache in Hadoop?
What is a scarce system resource?
What is the role of recordreader in hadoop mapreduce?
What are the four essential parameters of a mapper?
What is the relation between MapReduce and Hive?
What are the main configuration parameters in a MapReduce program?
What is partitioner and its usage?
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