What is shuffling in mapreduce?
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How to set the number of mappers for a MapReduce job?
Is it important for Hadoop MapReduce jobs to be written in Java?
What is a TaskInstance?
What is an input reader in reference to mapreduce?
Which Sorting algorithm is used in Hadoop MapReduce?
Where sorting is done in Hadoop MapReduce Job?
Mention when to use Map reduce mode?
What is the InputSplit in map reduce ?
When Namenode is down what happens to job tracker?
What is the Job interface in MapReduce framework?
What are the primary phases of a Reducer?
Can we rename the output file?
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