How to change replication factor of files already stored in HDFS?
Who invented hadoop?
What do shuffling do?
On What concept the Hadoop framework works?
What are the modes in which Apache Hadoop run?
What is HDFS Block size? How is it different from traditional file system block size?
Can you tell us more about ssh?
Explain the Job OutputFormat?
Why are the number of splits equal to the number of maps?
What are the basic available commands in Hadoop sqoop ?
What is keyvaluetextinputformat?
What is salary of hadoop developer?
What is Rack Awareness in Apache Hadoop?