What happens when a data node fails?

DWQA Questions › Category: Hadoop › What happens when a data node fails?
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Editor Staff asked 10 months ago

What happens when a data node fails?

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Editor Staff answered 10 months ago

If a data node fails the job tracker and name node will detect the failure. After that, all tasks are re-scheduled on the failed node and then name node will replicate the user data to another node.