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What exactly is hadoop?
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What are the hadoop's three configuration files?
Explain the difference between gen1 and gen2 hadoop with regards to the namenode?
Can hive run without hadoop?
What is salary of hadoop developer?
Can we call vms as pseudos?
What happens in a textinputformat?
Whats is distributed cache in hadoop?
What is the jobtracker?
Explain the features of stand alone (local) mode?
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?
In which location Name Node stores its Metadata and why?
What is the heartbeat used for?
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