What is a task instance in hadoop? Where does it run?
Is hadoop required for data science?
How to resolve ioexception: cannot create directory, while formatting namenode in hadoop?
What is formatting of the dfs?
How to enable recycle bin in hadoop?
Define a datanode?
How a task is scheduled by a jobtracker?
What is NoSQL?
What are the characteristics of hadoop framework?
What are different types of filesystem?
Explain what if rack 2 and datanode fails?
What is difference between split and block in hadoop?
what are Task Tracker and Job Tracker?