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Subject: Can I move block data directly?
From: Azuryy Yu <azuryyyu@gmail.com>
To: user@hadoop.apache.org
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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 input.

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<div dir=3D"ltr"><div>Hi Dear all,</div><div>=A0</div><div>There are some u=
nbalanced data nodes in my cluster, some nodes reached more than 95% disk u=
sage.</div><div>=A0</div><div>so Can I move some block data from one node t=
o another node directly?</div>
<div>=A0</div><div>such as: from n1 to n2:</div><div>=A0</div><div>1)=A0scp=
 /data/xxxx/blk_*=A0=A0 n2:/data/subdir11/</div><div>2) rm -rf data/xxxx/bl=
k_*</div><div>3) hadoop-dameon.sh stop datanode (on n1)</div><div>4) hadoop=
-damon.sh start datanode(on n1)</div>
<div><div>5) hadoop-dameon.sh stop datanode (on n2)</div><div>6) hadoop-dam=
on.sh start datanode(on n2)</div><div>=A0</div><div>Am I right? Thanks for =
any input.</div><div>=A0</div><div>=A0</div></div></div>

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