Rack awareness of Namenode?
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What are the main components of a Hadoop Application?
How does master slave architecture in the hadoop?
What is a task instance in hadoop? Where does it run?
What is Derby database?
What is formatting of the dfs?
How did you debug your Hadoop code ?
Define a daemon?
On what basis Namenode will decide which datanode to write on?
Why the name ‘hadoop’?
Mention what is the use of Context Object?
Explain use cases where SequenceFile class can be a good fit?
Explain the core components of hadoop?
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