Why password is needed in ssh localhost?
What is Schema on Read and Schema on Write?
Why do we need a password-less ssh in fully distributed environment?
What do you know about nlineoutputformat?
In which location Name Node stores its Metadata and why?
What is a speculative execution in Apache Hadoop MapReduce?
What is partioner in hadoop? Where does it run,mapper or reducer?
Can hbase run without hadoop?
What is configuration of a typical slave node on Hadoop cluster? How many JVMs run on a slave node?
How can one increase replication factor to a desired value in Hadoop?
Does this lead to security issues?
What is the process to change the files at arbitrary locations in HDFS?
What is the functionality of jobtracker in hadoop? How many instances of a jobtracker run on hadoop cluster?
What is the Use of SSH in Hadoop ?
How does master slave architecture in the hadoop?
