How to set the number of reducers?
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When should you use a reducer?
What is the difference between Hadoop and RDBMS?
A number of combiners can be changed or not in MapReduce?
What is an identity mapper and identity reducer?
Explain the features of Apache Spark because of which it is superior to Apache MapReduce?
how to proceed to write your first mapreducer program?
How is mapreduce related to cloud computing?
What is SequenceFileInputFormat in Hadoop MapReduce?
Explain what is shuffling in mapreduce?
How hadoop mapreduce works?
How to set the number of mappers to be created in MapReduce?
What do you mean by data locality?
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