What is throughput in Hadoop?
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How often do you need to reformat the namenode?
Is there another way to check whether Namenode is working?
Mention what job does the conf class do?
Mention what are the most common input formats defined in hadoop?
What are the tools used in big data?
What is the key difference between NameNode and DataNode in Hadoop?
How does hadoop achieve fault tolerance?
What is a record reader?
Can I set the number of reducers to zero?
What are the side data distribution techniques?
Explain how can you debug hadoop code?
Mention how hadoop is different from other data processing tools?
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