What are the identity mapper and reducer in MapReduce?
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What does a 'MapReduce Partitioner' do?
What are the various input and output types supported by mapreduce?
Describe what happens to a mapreduce job from submission to output?
What is the role of recordreader in hadoop mapreduce?
What is the relationship between Job and Task in Hadoop?
what is NameNode in Hadoop?
What do sorting and shuffling do?
How can we control particular key should go in a specific reducer?
What is partitioner and its usage?
Is it possible to rename the output file?
Is it important for Hadoop MapReduce jobs to be written in Java?
How do Hadoop MapReduce works?
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