What is Identity reducer?
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How would you restart NameNode?
What is the role of the namenode?
For using hadoop list the network requirements?
What is the non dfs used?
How many job tracker processes can run on a single Hadoop cluster?
How is the splitting of file invoked in Hadoop ?
What type of data hadoop can handle ?
How does hadoop achieve fault tolerance?
What kind of hardware is best for hadoop?
Explain Hadoop streaming?
How do you overwrite replication factor?
What is High Availability feature in Hadoop2?
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