In mapreduce what is a scarce system resource? Explain?
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What does conf.setmapper class do?
Why comparison of types is important for MapReduce?
What is the need of key-value pair to process the data in MapReduce?
How will you submit extra files or data ( like jars, static files, etc. ) For a mapreduce job during runtime?
Difference between mapreduce and spark
How to set mappers and reducers for MapReduce jobs?
What are the advantages of using mapreduce with hadoop?
Which Sorting algorithm is used in Hadoop MapReduce?
What is the Hadoop MapReduce API contract for a key and value Class?
What is the difference between an RDBMS and Hadoop?
What do sorting and shuffling do?
Explain job scheduling through JobTracker
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