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From "Naganarasimha G R (Naga)" <garlanaganarasi...@huawei.com>
Subject RE: Regarding a scenario where applications are being hung
Date Mon, 01 Sep 2014 15:11:52 GMT
Hi Wangda,

              Yes its the case where in its requesting 7GB per container. But can you decribe
why its expected behavior ?

>From user perspective either it should not have taken in the application request or after
some time may be both apps should have  been killed with proper exception or log information,
or pre empt any one AM container etc ...

Here none are happening!


Regards,
Naga



________________________________________
From: Wangda Tan [wheeleast@gmail.com]
Sent: Monday, September 01, 2014 22:51
To: yarn-dev@hadoop.apache.org
Subject: Re: Regarding a scenario where applications are being hung

Hi Naga,
According to scenario you described, if "Now each AM is requesting for
container of 7Gb  mem resource ." is a request for a single container (not
request 7 * containers, 1G for each one), it should be expected behavior.
Please let me know if you have more questions.

Thanks,
Wangda


On Mon, Sep 1, 2014 at 10:46 PM, Naganarasimha G R (Naga) <
garlanaganarasimha@huawei.com> wrote:

> Hi ,
>
>     I have one sceanrio which makes the applications to get hung , so
> wanted to validate whether its a bug (if so will raise a jira).
>
>
>
> Consider a cluster setup which has 2 NMS of each 8GB resource,
>
> And 2 applications are launched in the default queue where in each AM is
> taking 2 GB each.
>
> Each AM is placed in each of the NM. Now each AM is requesting for
> container of 7Gb  mem resource .
>
> As in each NM only 6GB resource is available both the applications are
> hung forever.
>
>
>
> Is this a bug ?
>
>
>
> Regards,
>
> Naga
>
>
>
> Huawei Technologies Co., Ltd.
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