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Can hadoop replace relational database?
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Explain what is jobtracker in hadoop? What are the actions followed by hadoop?
What does jps command do in Hadoop?
List of the some best tools that can be useful for data-analysis?
Explain how can we check whether namenode is working or not?
Is it possible to provide multiple input to Hadoop? If yes then how?
What happens if you get a ‘connection refused java exception’ when you type hadoop fsck /?
Why is checkpointing important in hadoop?
How many job tracker processes can run on a single Hadoop cluster?
Can you define udf?
What is rack awareness in hadoop?
When we send a data to a node, do we allow settling in time, before sending another data to that node?
What does rack awareness algorithm means and why is it utilized as a part of hadoop?
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