What is used to store data generally?
What types of costs are associated in creating index on hive tables?
While processing data from hdfs, does it execute code near data?
How can you send large messages with kafka (over 15mb)?
How to restart Namenode?
Describe HDFS Federation?
What are the general Prerequisites to learn HCatalog?
What are collection data types in Hive?
Explain the different logging levels in cassandra.
What is formatting of the dfs?
Did you ever built a production process in hadoop ? If yes then what was the process when your hadoop job fails due to any reason?
How many datanodes can run on a single Hadoop cluster?
How do big data solutions interact with the existing enterprise infrastructure?
What do you understand by Pair RDD?
Explain the usage of Context Object?