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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
Nan Zhu 2013-01-30, 03:04
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,

--
Nan Zhu
School of Computer Science,
McGill University