Explain the process of spilling in Hadoop MapReduce?
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Explain what does the conf.setmapper class do?
What are combiners? When should I use a combiner in my MapReduce Job?
Explain how mapreduce works.
Explain the input type/format in mapreduce by default?
How will you submit extra files or data ( like jars, static files, etc. ) For a mapreduce job during runtime?
Mention what is the hadoop mapreduce apis contract for a key and value class?
What is the Job interface in MapReduce framework?
How can you add the arbitrary key-value pairs in your mapper?
Write a Mapreduce Program for Character Count ?
Explain job scheduling through JobTracker
Why comparison of types is important for MapReduce?
What are the four essential parameters of a mapper?
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