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Name job control options specified by mapreduce.
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How to overwrite an existing output file during execution of mapreduce jobs?
In MapReduce, ideally how many mappers should be configured on a slave?
Where sorting is done in Hadoop MapReduce Job?
How many Mappers run for a MapReduce job?
How to get the single file as the output from MapReduce Job?
What is the default input type in MapReduce?
What is the job of blend () and repartition () in Map Reduce?
what are the basic parameters of a Mapper?
Define MapReduce?
What is partitioning in MapReduce?
What is identity mapper and reducer? In which cases can we use them?
what happens when Hadoop spawned 50 tasks for a job and one of the task failed?
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