A

Admin • 833K Points
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Q. What does HDFS do when a DataNode fails?

  • (A) Shuts down the system
  • (B) Replaces the DataNode immediately
  • (C) Replicates data blocks from failed node
  • (D) Deletes the associated files
  • Correct Answer - Option(C)
  • Views: 13
  • Filed under category Hadoop
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Explanation by: Admin

HDFS replicates the blocks of the failed DataNode to other healthy DataNodes to maintain replication factor.

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