Is map like a pointer?
Why password is needed in ssh localhost?
What does job conf class do?
What is Row Key?
Give the use of the bootstrap panel.
How does master slave architecture in the hadoop?
What happens to job tracker when namenode is down?
what is meaning Replication factor?
What stored in HDFS?
What do you know about nlineoutputformat?
How many instances of JobTracker can run on a Hadoop Cluser?
What is the relation between job and task in hadoop?
What is column families? What happens if you alter the block size of ColumnFamily on an already populated database?