What does a split do?
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Where the mapper's intermediate data will be stored?
How to set the number of mappers for a MapReduce job?
What is the Reducer used for?
what is storage and compute nodes?
what does the text input format do?
How does fault tolerance work in mapreduce?
What is a distributed cache in mapreduce framework?
What is the difference between an RDBMS and Hadoop?
Explain the general mapreduce algorithm
What is the difference between Job and Task in MapReduce?
How data is spilt in Hadoop?
mapper or reducer?
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