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From Allan <wilsoncr...@gmail.com>
Subject Re: Can I move block data directly?
Date Mon, 08 Jul 2013 11:15:10 GMT
If the imbalance is across data nodes then you need to run the balancer.

Sent from my iPad

On Jul 8, 2013, at 1:15 AM, Azuryy Yu <azuryyyu@gmail.com> wrote:

> 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.

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