What is the communication channel between client and namenode/datanode?
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What are the two main parts of the hadoop framework?
Why is hadoop faster?
What is yarn in hadoop?
What are the limitations of importing RDBMS tables into Hcatalog directly?
Explain the features of fully distributed mode?
What do shuffling do?
What do you understand from Node redundancy and is it exist in hadoop cluster?
Why password is needed in ssh localhost?
What is nlineoutputformat?
What is the purpose of RawComparator interface?
If a data Node is full how it's identified?
What is the functionality of jobtracker in hadoop? How many instances of a jobtracker run on hadoop cluster?
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