Explain the hadoop configuration files at present?
How can I restart namenode?
What is inputformat in hadoop?
Explain how can we change the split size if our commodity hardware has less storage space?
What is the difference between a Hadoop and Relational Database and Nosql?
What is version-id mismatch error in hadoop?
What are the main components of a Hadoop Application?
How does NameNode tackle DataNode failures?
What is a Secondary Namenode? Is it a substitute to the Namenode?
Explain what happens in textinformat ?
What are the modes in which Apache Hadoop run?
What is oozie in hadoop?
Explain how is hadoop different from other data processing tools?