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MapReduce >> mail # user >> what will happen when HDFS restarts but with some dead nodes


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what will happen when HDFS restarts but with some dead nodes
Hi, all

I'm wondering if HDFS is stopped, and some of the machines of the cluster are moved,  some of the block replication are definitely lost for moving machines

when I restart the system, will the namenode recalculate the data distribution?

Best,

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Nan Zhu
School of Computer Science,
McGill University