Where sorting is done in Hadoop MapReduce Job?
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Different ways of debugging a job in MapReduce?
Explain what you understand by speculative execution
What happens when a DataNode fails during the write process?
What is MapReduce? What are the syntax you use to run a MapReduce program?
What is sqoop in Hadoop ?
What is a combiner and where you should use it?
How to set which framework would be used to run mapreduce program?
What can be optimum value for Reducer?
What is Counter in MapReduce?
what is "map" and what is "reducer" in Hadoop?
What is a partitioner and how the user can control which key will go to which reducer?
What is the default value of map and reduce max attempts?
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