What is Shuffling and Sorting in a MapReduce?
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Explain the process of spilling in Hadoop MapReduce?
Explain the general mapreduce algorithm
What do sorting and shuffling do?
What is the Reducer used for?
How to submit extra files(jars,static files) for MapReduce job during runtime in Hadoop?
Explain what you understand by speculative execution
What happens when a DataNode fails during the write process?
How to sort intermediate output based on values in MapReduce?
What are the main components of MapReduce Job?
What is partitioning in MapReduce?
What is shuffling in mapreduce?
What is Text Input Format?
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