What are the data components used by Hadoop?
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Explain task granularity
What is the fundamental difference between a MapReduce Split and a HDFS block?scale data processing?
What do sorting and shuffling do?
what happens in textinformat ?
Why MapReduce uses the key-value pair to process the data?
How do you stop a running job gracefully?
Explain how do ‘map’ and ‘reduce’ work?
What is the difference between Hadoop and RDBMS?
When is it not recommended to use MapReduce paradigm for large scale data processing?
What is sqoop in Hadoop ?
Is it possible to search for files using wildcards?
What is Mapper in Hadoop MapReduce?
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