What is the difference between rdbms and hadoop?
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What is Hadoop streaming?
Why we cannot do aggregation (addition) in a mapper? Why we require reducer for that?
What are watches?
What is the InputFormat ?
Explain the shuffle?
How will you make changes to the default configuration files?
What do you know about nlineoutputformat?
What is the functionality of jobtracker in hadoop?
What exactly is hadoop?
How to exit the vi editor?
Whats is distributed cache in hadoop?
how to share the metastore within multiple users?
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