What is sqoop in Hadoop ?
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what are the main configuration parameters that user need to specify to run Mapreduce Job ?
What is the relationship between Job and Task in Hadoop?
Explain job scheduling through JobTracker
How to create a custom key and custom value in MapReduce Job?
How does Mappers run method works?
Where the mapper's intermediate data will be stored?
What is a "map" in Hadoop?
Explain what you understand by speculative execution
What are the various InputFormats in Hadoop?
Define speculative execution?
Is it necessary to write a mapreduce job in java?
What are the advantages of using map side join in mapreduce?
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