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What do you mean by the NameNode High Availability in hadoop?
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What happen if one of the datanodes has much slower cpu?
Is it possible to have hadoop job output in multiple directories? If yes, how?
What are the functionalities of jobtracer?
Which object can be used to get the progress of a particular job
What are the differences between hadoop 1 and hadoop 2?
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What is streaming in Hadoop?
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