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how can you debug Hadoop code?
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Why Mapreduce output written in local disk?
What is the sequence of execution of Mapper, Combiner, and Partitioner in MapReduce?
What main configuration parameters are specified in mapreduce?
What is InputFormat in Hadoop MapReduce?
For a Hadoop job, how will you write a custom partitioner?
What is the Hadoop MapReduce API contract for a key and value Class?
What are the advantages of using mapreduce with hadoop?
How to overwrite an existing output file during execution of mapreduce jobs?
Explain about the partitioning, shuffle and sort phase
What is MapReduce? What are the syntax you use to run a MapReduce program?
Illustrate a simple example of the working of MapReduce.
What happens if the quantity of the reducer is 0 in mapreduce?
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