Explain the process of spilling in MapReduce?
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What comes in Hadoop 2.0 and MapReduce V2 YARN
What are the data components used by Hadoop?
How will you submit extra files or data ( like jars, static files, etc. ) For a mapreduce job during runtime?
What is shuffling in mapreduce?
How would you tackle calculating the number of unique visitors for each hour by mining a huge apache log? You can use post processing on the output of the mapreduce job.
What is the Hadoop MapReduce API contract for a key and value Class?
how to proceed to write your first mapreducer program?
What do you understand by the term Straggler ?
For a job in Hadoop, is it possible to change the number of mappers to be created?
What is the difference between RDBMS with Hadoop MapReduce?
How to sort intermediate output based on values in MapReduce?
Explain about the partitioning, shuffle and sort phase
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