When Namenode is down what happens to job tracker?
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What are the various input and output types supported by mapreduce?
What is the default input type in MapReduce?
what job does the conf class do?
How to overwrite an existing output file/dir during execution of Hadoop MapReduce jobs?
What do you understand by mapreduce?
How do Hadoop MapReduce works?
What is Data Locality in Hadoop?
Explain about the basic parameters of mapper and reducer function
For a job in Hadoop, is it possible to change the number of mappers to be created?
What is Output Format in MapReduce?
What is a partitioner and how the user can control which key will go to which reducer?
Explain the process of spilling in MapReduce?
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