Give a brief overview of Hadoop history?
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What is the logistic regression?
Can you explain indexing?
Explain edge nodes in hadoop?
What are input format, input split & record reader and what they do?
What is Chain Mapper?
How to restart NameNode or all the daemons in Hadoop?
Can you explain commodity hardware?
How Hadoop is cost-effective?
What is the basic difference between traditional RDBMS and Hadoop?
How can we create a hadoop cluster from scratch?
When should be hadoop archive create?
What happen if number of reducer is set to 0 in Hadoop?
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