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From Harsh J <ha...@cloudera.com>
Subject Re: Avoid Killing of YARN container on excess virtual memory usage
Date Thu, 18 Oct 2012 11:37:43 GMT
This is possible to do, but you've hit a bug with the current YARN
implementation. Ideally you should be able to configure the vmem-pmem
ratio (or an equivalent config) to be -1, to indicate disabling of
virtual memory checks completely (and there's indeed checks for this),
but it seems like we are enforcing the ratio to be at least 1.0 (and
hence negatives are disallowed).

You can't workaround by setting the NM's offered resource.mb to -1
either, as you'll lose out on controlling maximum allocations.

Please file a YARN bug on JIRA. The code at fault lies under
ContainersMonitorImpl#init(…).

On Thu, Oct 18, 2012 at 4:00 PM, Krishna Kishore Bonagiri
<write2kishore@gmail.com> wrote:
> Hi,
>
>   Is there a way we can ask the YARN RM for not killing a container when it
> uses excess virtual memory than the maximum it can use as per the
> specification in the configuration file yarn-site.xml? We can't always
> estimate the amount of virtual memory needed for our application running on
> a container, but we don't want to get it killed in a case it exceeds the
> maximum limit.
>
>   Please suggest as to how can we come across this issue.
>
> Thanks,
> Kishore



-- 
Harsh J

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