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Which Sorting algorithm is used in Hadoop MapReduce?
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What is Distributed Cache in the MapReduce Framework?
Where sorting is done on mapper node or reducer node in MapReduce?
How to specify more than one directory as input to the MapReduce Job?
What is shuffleing in mapreduce?
Describe what happens to a mapreduce job from submission to output?
In Hadoop, which file controls reporting in Hadoop?
what happens when Hadoop spawned 50 tasks for a job and one of the task failed?
What is the best way to copy files between HDFS clusters?
Explain what is the function of mapreduce partitioner?
What are the data components used by Hadoop?
Explain about the partitioning, shuffle and sort phase
How to set mappers and reducers for Hadoop jobs?
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