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Explain what happens if, during the PUT operation, HDFS block is assigned a replication factor 1 instead of the default value 3?
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Answer / Amarkumar
When the replication factor for an HDFS (Hadoop Distributed File System) block is set to 1 during a PUT operation, the block will only be stored on one DataNode. If that DataNode fails or experiences connectivity issues, the data will become unavailable. A replication factor of 3 ensures that the same data is stored across three different DataNodes for higher reliability and availability.
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