Explain what does the conf.setmapper class do?
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what is storage and compute nodes?
Explain what is distributed cache in mapreduce framework?
What is a partitioner and how the user can control which key will go to which reducer?
Compare RDBMS with Hadoop MapReduce.
How do reducers communicate with each other?
How to optimize Hadoop MapReduce Job?
A number of combiners can be changed or not in MapReduce?
How does fault tolerance work in mapreduce?
What is Hadoop Map Reduce ?
What are the benefits of Spark over MapReduce?
What does a 'MapReduce Partitioner' do?
What is Counter in MapReduce?
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