Explain how can you debug hadoop code?
Explain how can you check whether namenode is working beside using the jps command?
Explain what is webdav in hadoop?
Mention what job does the conf class do?
For using hadoop list the network requirements?
Explain deletion in hbase? Mention what are the three types of tombstone markers in hbase?
What are the main key structures of hbase?
What is the use of hbase hmaster?
Which technique can you use in hbase to access hfile directly without the help of hbase?
Explain what is wal and hlog in hbase?
How many operational commands in hbase?
why use hcolumndescriptor class?
What is the row key?
Tell me about the types of hbase operations?
How does hbase actually delete a row?