Which one is default InputFormat in Hadoop ?
What is commodity hardware?
What is the purpose of button groups?
What is configuration of a typical slave node on Hadoop cluster? How many JVMs run on a slave node?
Define tasktracker.
What is the use of combiners in the hadoop framework?
How can we look for the namenode in the browser?
Explain the use of tasktracker in the hadoop cluster?
What is IdentityMapper?
What is high availability in hadoop?
How to use Apache Zookeeper command line interface?
Where do you specify the Mapper Implementation?
when hadoop enter in safe mode?