What is a distributed cache in mapreduce framework?
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How to set the number of reducers?
What do you mean by shuffling and sorting in MapReduce?
What is the core of the job in MapReduce framework?
How to get the single file as the output from MapReduce Job?
How to create custom key and custom value in MapReduce Job?
How to create a custom key and custom value in MapReduce Job?
What is Mapper in Hadoop MapReduce?
How to submit extra files(jars,static files) for MapReduce job during runtime in Hadoop?
What is map/reduce job in hadoop?
Explain combiners.
Explain what is shuffling in mapreduce?
when do reducers play their role in a mapreduce task?
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