Or if you have a node blow a motherboard but the disks are fine...

Ian

On Mar 30, 2009, at 10:03 PM, Mike Andrews wrote:

i tried swapping two hot-swap sata drives between two nodes in a
cluster, but it didn't work: after restart, one of the datanodes shut
down since namenode said it reported a block belonging to another
node, which i guess namenode thinks is a fatal error. is this caused
by the hadoop/datanode/current/VERSION file having the IP address and
other ID information of the datanode hard-coded? it'd be great to be
able to do a manual gross cluster rebalance by just physically
swapping hard drives, but seems like this is not possible in the
current version 0.18.3.

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