What is the meaning of the term "non-DFS used" in Hadoop web-console?
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How a task is scheduled by a jobtracker?
Define a combiner?
Is it possible to provide multiple inputs to hadoop? If yes, explain.
What do slaves consist of?
Explain the features of fully distributed mode?
What is your favourite tool in the hadoop ecosystem?
Which is the best hadoop certification?
What problems have you faced when you are working on Hadoop code?
what are the steps involved in decommissioning removing
Can you explain how do ‘map’ and ‘reduce’ work?
Is secondary namenode a substitute to the namenode?
What is the InputFormat ?
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