Define the purpose of the partition function in mapreduce framework
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When should you use a reducer?
Is it mandatory to set input and output type/format in MapReduce?
What do you understand by compute and storage nodes?
When is the reducers are started in a MapReduce job?
Is it possible to rename the output file?
Explain combiners.
In MapReduce, ideally how many mappers should be configured on a slave?
What is identity mapper and chain mapper?
How to get the single file as the output from MapReduce Job?
what does the conf.setMapper Class do ?
What is the difference between map and reduce?
When should you use sequencefileinputformat?
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