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From "James Litton" <james.lit...@chacha.com>
Subject Recovery of datanode with dfs.replication = 1
Date Wed, 22 Sep 2010 19:28:24 GMT

 I recently got tasked with recovering a node from an HDFS cluster, but the problem is there
was no replication of the data configured. I still have access to the disk on which the data
is stored.

 My current plan is:
1. bring up a new machine
2. mount the disk on that machine
3. reconfigure the slaves config to include that node
4. ???
5. have access to the data

 Is this possible? What steps will I need to take to ensure that the data on the new node
is recognized and included in the data set?

Thank you,

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