What is shuffling and sorting in mapreduce?
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Why Mapper runs in heavy weight process and not in a thread in MapReduce?
Mention Hadoop core components?
What is the difference between an RDBMS and Hadoop?
How many Mappers run for a MapReduce job?
How to set the number of reducers?
In Hadoop what is InputSplit?
Mention what is the next step after mapper or maptask?
How to set which framework would be used to run mapreduce program?
How to write a custom partitioner for a Hadoop MapReduce job?
What is Distributed Cache in the MapReduce Framework?
Write a short note on the disadvantages of mapreduce
What do you understand by the term Straggler ?
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