What is a "map" in Hadoop?
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What is identity mapper and chain mapper?
Difference between mapreduce and spark
What is SequenceFileInputFormat in Hadoop MapReduce?
How to set the number of mappers for a MapReduce job?
What happen if the number of the reducer is 0 in MapReduce?
What are mapreduce new and old apis while writing map reduce program?. Explain how it works
What is Counter in MapReduce?
How to change the name of the output file from part-r-00000 in Hadoop MapReduce?
What is the difference between an RDBMS and Hadoop?
what is distributed cache in mapreduce framework?
What do you mean by shuffling and sorting in MapReduce?
How do reducers communicate with each other?
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