What is the process of changing the split size if there is limited storage space on Commodity Hardware?
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what happens when Hadoop spawned 50 tasks for a job and one of the task failed?
In MapReduce, ideally how many mappers should be configured on a slave?
Explain how do ‘map’ and ‘reduce’ work?
what is JobTracker in Hadoop? What are the actions followed by Hadoop?
What are mapreduce new and old apis while writing map reduce program?. Explain how it works
What combiners is and when you should use a combiner in a MapReduce Job?
What is Reduce only jobs?
What is a IdentityMapper and IdentityReducer in MapReduce ?
What is the difference between an RDBMS and Hadoop?
How can you add the arbitrary key-value pairs in your mapper?
Is it possible to split 100 lines of input as a single split in MapReduce?
How to get the single file as the output from MapReduce Job?
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