Is hadoop obsolete?
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What will you do when NameNode is down?
Explain use cases where SequenceFile class can be a good fit?
Is it possible to provide multiple inputs to hadoop? If yes, explain.
Is it necessary to write jobs for hadoop in the java language?
Explain the basic difference between traditional rdbms and hadoop?
What is Rack awareness?
What infrastructure do we need to process 100 TB data using Hadoop?
What are the different types of Znodes?
Explain the basic architecture of Hadoop?
What is high availability in hadoop?
What is inputformat in hadoop?
What are different types of filesystem?