How blocks are distributed among all data nodes for a particular chunk of data?
What are watches?
What do you know about keyvaluetextinputformat?
What is the meaning of the term "non-DFS used" in Hadoop web-console?
What is difference between split and block in hadoop?
What is the difference between Hadoop and Traditional RDBMS?
Why we cannot do aggregation (addition) in a mapper? Why we require reducer for that?
How can one increase replication factor to a desired value in Hadoop?
Who is a 'user' in HDFS?
Can you tell us more about ssh?
How to enable recycle bin in hadoop?
Should we use RAID in Hadoop or not?
Command to format the NameNode?