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What happens if the block on Hadoop HDFS is corrupted?
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Answer / Akshya Dixit
When a block in HDFS (Hadoop Distributed File System) gets corrupted, the NameNode will detect this issue and initiate a block replacement process. The DataNodes will start replicating another copy of the same block, if available, or create a new one using the original data from other replicas. This ensures data integrity and reliability in HDFS.
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