What is output format in hadoop?
What does job conf class do?
What is a secondary namenode?
What do you know by storage and compute node?
How many instances of tasktracker run on a hadoop cluster?
What is the functionality of jobtracker in hadoop? How many instances of a jobtracker run on hadoop cluster?
What happens in a textinputformat?
Is hadoop required for data science?
How the Client communicates with HDFS?
What does the command mapred.job.tracker do?
Is secondary namenode a substitute to the namenode?
What is difference between split and block in hadoop?
Which command is used for the retrieval of the status of daemons running the hadoop cluster?