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Date: Wed, 13 Aug 2014 14:14:02 +0530
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 <CAHg+sbNKmZ7VARMp_tFD1Zh8HrC5_Ei4SFYJ2FBNYQRgwtnrqA@mail.gmail.com>
Subject: Re: Negative value given by getVirtualCores() or
 getAvailableResources()
From: Krishna Kishore Bonagiri <write2kishore@gmail.com>
To: user@hadoop.apache.org
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Hi Wangda,

  I was actually wondering why should it give me -ve value for vcores when
I call getAvailableResources().

Thanks,
Kishore


On Tue, Aug 12, 2014 at 12:50 PM, Wangda Tan <wheeleast@gmail.com> wrote:

> By default, vcore = 1 for each resource request. If you don't like this
> behavior, you can set yarn.scheduler.minimum-allocation-vcores=0
>
> Hope this helps,
> Wangda Tan
>
>
>
> On Thu, Aug 7, 2014 at 7:13 PM, Krishna Kishore Bonagiri <
> write2kishore@gmail.com> wrote:
>
>> Hi,
>>   I am calling getAvailableResources() on AMRMClientAsync and getting -ve
>> value for the number virtual cores as below. Is there something wrong?
>>
>> <memory:16110, vCores:-2>.
>>
>> I have set the vcores in my yarn-site.xml like this, and just ran an
>> application that requires two containers other than the Application
>> Master's container. In the ContainerRequest setup from my
>> ApplicationMaster, I haven't set anything for virtual cores, means I didn't
>> call setVirtualCores() at all.
>>
>> So, I think it shouldn't be showing a -ve value for the vcores, when I
>> call getAvailableResources(), am I wrong?
>>
>>
>> <description> Number of CPU cores that can be allocated for containers.
>> </description>
>> <name> yarn.nodemanager.resource.cpu-vcores </name>
>> <value> 4 </value>
>> </property>
>>
>> Thanks,
>> Kishore
>>
>
>

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<div dir=3D"ltr">Hi Wangda,<div><br><div>=C2=A0 I was actually wondering wh=
y should it give me -ve value for vcores when I call getAvailableResources(=
).</div><div><br></div><div>Thanks,</div><div>Kishore</div></div></div><div=
 class=3D"gmail_extra">
<br><br><div class=3D"gmail_quote">On Tue, Aug 12, 2014 at 12:50 PM, Wangda=
 Tan <span dir=3D"ltr">&lt;<a href=3D"mailto:wheeleast@gmail.com" target=3D=
"_blank">wheeleast@gmail.com</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">By default, vcore =3D 1 for each resource request. If you =
don&#39;t like this behavior, you can set yarn.scheduler.minimum-allocation=
-vcores=3D0=C2=A0<div><br></div><div>Hope this helps,</div><div>Wangda Tan<=
/div><div>


<div><div><br></div></div></div></div><div class=3D"HOEnZb"><div class=3D"h=
5"><div class=3D"gmail_extra"><br><br><div class=3D"gmail_quote">On Thu, Au=
g 7, 2014 at 7:13 PM, Krishna Kishore Bonagiri <span dir=3D"ltr">&lt;<a hre=
f=3D"mailto:write2kishore@gmail.com" target=3D"_blank">write2kishore@gmail.=
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 dir=3D"ltr"><div>Hi,</div><div>=C2=A0 I=
 am calling=C2=A0getAvailableResources() on=C2=A0AMRMClientAsync and gettin=
g -ve value for the number virtual cores as below. Is there something wrong=
?</div>


<div><br></div>&lt;memory:16110, <font color=3D"#0000ff">vCores:-2</font>&g=
t;.<br>
<div><br></div><div>I have set the vcores in my yarn-site.xml like this, an=
d just ran an application that requires two containers other than the Appli=
cation Master&#39;s container. In the=C2=A0ContainerRequest setup from my A=
pplicationMaster, I haven&#39;t set anything for virtual cores, means I did=
n&#39;t call setVirtualCores() at all.</div>


<div><br></div><div>So, I think it shouldn&#39;t be showing a -ve value for=
 the vcores, when I call getAvailableResources(), am I wrong?</div><div><br=
></div><div><br></div><div><div>&lt;description&gt; Number of CPU cores tha=
t can be allocated for containers. &lt;/description&gt;</div>


<div>&lt;name&gt; yarn.nodemanager.resource.cpu-vcores &lt;/name&gt;</div><=
div>&lt;value&gt; 4 &lt;/value&gt;</div><div>&lt;/property&gt;</div></div><=
div><br></div><div>Thanks,</div><div>Kishore</div></div>
</blockquote></div><br></div>
</div></div></blockquote></div><br></div>

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