Have you ever used counters in hadoop?
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Explain small file problem in hadoop
Can hadoop replace relational database?
Does hadoop follows the unix pattern?
What is the difference between namenode and datanode in hadoop?
What daemons run on master nodes?
Explain the core methods of the reducer?
What is winutils hadoop?
We have already sql then why nosql?
Can you explain indexing?
What are the main features and Characteristics of Hadoop which makes it the most popular and powerful Big Data tool?
What is a combiner in hadoop?
How is the splitting of file invoked in Hadoop framework?
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