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Date: Mon, 17 Nov 2014 02:10:35 -0800
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Subject: Re: question about speed up the hdfs balancer
From: Serge Blazhievsky <hadoop.ca@gmail.com>
To: "user@hadoop.apache.org" <user@hadoop.apache.org>
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If you set bandwidth on one of the nodes, it takes effect on the whole
cluster.


On Mon, Nov 17, 2014 at 1:56 AM, Gordon Wang <gwang@pivotal.io> wrote:

> You have to push the conf to all the datanodes and restart the datanodes.
>
> On Mon, Nov 17, 2014 at 5:03 PM, ch huang <justlooks@gmail.com> wrote:
>
>> hi,maillist:
>>           i want to balancer for my HDFS cluster ,but the default speed
>> is 1M/s , i want to set the option dfs.balance.bandwidthPerSec  to 20M/s
>> ,surpose i issue balancer command on node A ,i do not know if i just set
>> the option on node A's  hdfs-site.xml ,or i need to set the option on All
>> node of my HDFS cluster? thanks a lot!
>>
>
>
>
> --
> Regards
> Gordon Wang
>

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<div dir=3D"ltr">If you set bandwidth on one of the nodes, it takes effect =
on the whole cluster.<br><br><br></div><div class=3D"gmail_extra"><br><div =
class=3D"gmail_quote">On Mon, Nov 17, 2014 at 1:56 AM, Gordon Wang <span di=
r=3D"ltr">&lt;<a href=3D"mailto:gwang@pivotal.io" target=3D"_blank">gwang@p=
ivotal.io</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_quote" style=
=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir=
=3D"ltr">You have to push the conf to all the datanodes and restart the dat=
anodes.</div><div class=3D"gmail_extra"><span class=3D""><br><div class=3D"=
gmail_quote">On Mon, Nov 17, 2014 at 5:03 PM, ch huang <span dir=3D"ltr">&l=
t;<a href=3D"mailto:justlooks@gmail.com" target=3D"_blank">justlooks@gmail.=
com</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_quote" style=3D"mar=
gin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir=3D"ltr=
">hi,maillist:<div>=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 i want to balancer fo=
r my HDFS cluster ,but the default speed is 1M/s , i want to set the option=
=C2=A0dfs.balance.bandwidthPerSec =C2=A0to 20M/s ,surpose i issue balancer =
command on node A ,i do not know if i just set the option on node A&#39;s =
=C2=A0hdfs-site.xml ,or i need to set the option on All node of my HDFS clu=
ster? thanks a lot!</div></div>
</blockquote></div><br><br clear=3D"all"><div><br></div></span><span class=
=3D"HOEnZb"><font color=3D"#888888">-- <br><div><div dir=3D"ltr"><div>Regar=
ds</div>Gordon Wang</div></div>
</font></span></div>
</blockquote></div><br></div>

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