What are active and passive "NameNodes"?
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Why is hadoop faster?
What are the limitations of importing RDBMS tables into Hcatalog directly?
What do sorting do?
Did you ever built a production process in hadoop ? If yes then what was the process when your hadoop job fails due to any reason?
What is formatting of the dfs?
What is the purpose of button groups?
Explain the use of .mecia class?
Explain use cases where SequenceFile class can be a good fit?
How does master slave architecture in the hadoop?
Explain how can we change the split size if our commodity hardware has less storage space?
Explain why the name ‘hadoop’?
What is HDFS block size and what did you chose in your project?
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