Why would nosql be better than using a sql database? And how much better is it?
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What is namenode?
Can you explain the common input formats in hadoop?
Suppose hadoop spawned 100 tasks for a job and one of the tasks failed. What will hadoop do?
What are the port numbers of task tracker?
What do you understand by unit and ()in scala?
How would you restart NameNode?
Explain how can you debug hadoop code?
Specify what the information segments utilized by hadoop are?
What is the block size in Hadoop?
What does block mean?
What is a Heartbeat in Hadoop?
What is the most widely recognized info formats characterized in hadoop?
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