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HDFS >> mail # dev >> Fwd: Can I move block data directly?


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Fwd: Can I move block data directly?
Hi Dear all,

There are some unbalanced data nodes in my cluster, some nodes reached more
than 95% disk usage.

so Can I move some block data from one node to another node directly?

such as: from n1 to n2:

1) scp /data/xxxx/blk_*   n2:/data/subdir11/
2) rm -rf data/xxxx/blk_*
3) hadoop-dameon.sh stop datanode (on n1)
4) hadoop-damon.sh start datanode(on n1)
5) hadoop-dameon.sh stop datanode (on n2)
6) hadoop-damon.sh start datanode(on n2)

Am I right? Thanks for any inputs.