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What are the benefits of block transfer?
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What is zookeeper in hadoop?
Are Namenode and job tracker on the same host?
Does hadoop always require digital data to process?
how can we change Replication Factor?
Can hbase run without hadoop?
How is the option in Hadoop to skip the bad records?
How can we look for the namenode in the browser?
Explain why do we need hadoop?
Data Engineer Given a list of followers in the format:123, 345234, 678345, 123…Where column one is the ID of the follower and column two is the ID of the followee. Find all mutual following pairs (the pair 123, 345 in the example above). How would you use Map/Reduce to solve the problem when the list does not fit in memory?
Rack awareness of Namenode?
did you maintain the hadoop cluster in-house or used hadoop in the cloud?
What happens in a textinputformat?
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