What is the purpose of DataNode block scanner?


No Answer is Posted For this Question
Be the First to Post Answer

Post New Answer

More Apache Hadoop Interview Questions

What is compute and Storage nodes?

0 Answers  


What mechanism does hadoop framework provides to synchronize changes made in distribution cache during runtime of the application?

0 Answers  


What is column families? What happens if you alter the block size of ColumnFamily on an already populated database?

0 Answers  


Why are the number of splits equal to the number of maps?

0 Answers  


Which are the two types of 'writes' in HDFS?

0 Answers  






Can you explain how do ‘map’ and ‘reduce’ work?

0 Answers  


What is inputformat in hadoop?

0 Answers  


how can we change Replication Factor?

0 Answers  


What are the limitations of importing RDBMS tables into Hcatalog directly?

0 Answers  


What is Rack awareness?

0 Answers  


How to come out of the insert mode?

0 Answers  


Explain what happens in textinformat ?

0 Answers  


Categories