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Date: Sun, 9 Jun 2013 10:30:42 -0400
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Subject: Re: Management API
From: Rita <rmorgan466@gmail.com>
To: "<common-user@hadoop.apache.org>" <user@hadoop.apache.org>
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Are there any specs for the JSON schema?


On Thu, Jun 6, 2013 at 9:49 AM, MARCOS MEDRADO RUBINELLI <
marcosm@buscapecompany.com> wrote:

>  Brian,
>
> If you have access to the web UI, you can get those metrics in JSON from
> the JMXJsonServlet. Try hitting
> http://namenode_hostname:50070/jmx?qry=Hadoop:* and
> http://jobtracker_v1_hostname:50030/jmx?qry=hadoop:*
>
> It isn't as extensive as other options, but if you just need a snapshot of
> node capacity and utilization, it's pretty handy. I used it to plug some
> basic warnings into Nagios.
>
> Regards,
> Marcos
>
>
> On 06-06-2013 09:51, Brian Mason wrote:
>
> I am looking for a way to access a list of Nodes, Compute, Data etc ..  My
> application is not running on the name node.  It is remote.  The 2.0 Yarn
> API look like they may be useful, but I am not on 2.0 and cannot move to
> 2,0 anytime soon.
>
>  DFSClient.java looks useful, but its not in the API docs so I am not
> sure how to use it or even if I should.
> Any pointers would be helpful.
>
>  Thanks,
>
>
>


-- 
--- Get your facts first, then you can distort them as you please.--

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<div dir=3D"ltr">Are there any specs for the JSON schema?=A0</div><div clas=
s=3D"gmail_extra"><br><br><div class=3D"gmail_quote">On Thu, Jun 6, 2013 at=
 9:49 AM, MARCOS MEDRADO RUBINELLI <span dir=3D"ltr">&lt;<a href=3D"mailto:=
marcosm@buscapecompany.com" target=3D"_blank">marcosm@buscapecompany.com</a=
>&gt;</span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">


<div bgcolor=3D"#FFFFFF" text=3D"#000000">
<div>Brian,<br>
<br>
If you have access to the web UI, you can get those metrics in JSON from th=
e JMXJsonServlet. Try hitting
<a href=3D"http://namenode_hostname:50070/jmx?qry=3DHadoop:*" target=3D"_bl=
ank">
http://namenode_hostname:50070/jmx?qry=3DHadoop:*</a> and <a href=3D"http:/=
/jobtracker_v1_hostname:50030/jmx?qry=3Dhadoop:*" target=3D"_blank">
http://jobtracker_v1_hostname:50030/jmx?qry=3Dhadoop:*</a><br>
<br>
It isn&#39;t as extensive as other options, but if you just need a snapshot=
 of node capacity and utilization, it&#39;s pretty handy. I used it to plug=
 some basic warnings into Nagios.<br>
<br>
Regards,<br>
Marcos<div><div class=3D"h5"><br>
<br>
On 06-06-2013 09:51, Brian Mason wrote:<br>
</div></div></div><div><div class=3D"h5">
<blockquote type=3D"cite">
<div dir=3D"ltr">I am looking for a way to access a list of Nodes, Compute,=
 Data etc .. =A0My application is not running on the name node. =A0It is re=
mote. =A0The 2.0 Yarn API look like they may be useful, but I am not on 2.0=
 and cannot move to 2,0 anytime soon.
<div><br>
</div>
<div>DFSClient.java looks useful, but its not in the API docs so I am not s=
ure how to use it or even if I should.</div>
<div>Any pointers would be helpful. =A0</div>
<div><br>
</div>
<div>Thanks,</div>
</div>
</blockquote>
<br>
</div></div></div>

</blockquote></div><br><br clear=3D"all"><div><br></div>-- <br>--- <span>Ge=
t your facts first, then you can distort them as you please.</span>--
</div>

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