Is it possible to provide multiple inputs to hadoop? If yes, explain.
No Answer is Posted For this Question
Be the First to Post Answer
On what basis Namenode will decide which datanode to write on?
What mechanism does hadoop framework provides to synchronize changes made in distribution cache during runtime of the application?
What does ‘jps’ command do?
What is the default block size in hdfs?
what are Task Tracker and Job Tracker?
What does job conf class do?
What is a heartbeat in HDFS?
Input Split & Record Reader and what they do?
Data Engineer Given a list of followers in the format:123, 345234, 678345, 123…Where column one is the ID of the follower and column two is the ID of the followee. Find all mutual following pairs (the pair 123, 345 in the example above). How would you use Map/Reduce to solve the problem when the list does not fit in memory?
What are the different methods to run Spark over Apache Hadoop?
Explain the hadoop-core configuration?
What is Disk Balancer in Apache Hadoop?