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From Shahab Yunus <shahab.yu...@gmail.com>
Subject Re: number of mappers allowed in a container in hadoop2
Date Wed, 15 Oct 2014 12:15:36 GMT
It depends on memory settings as well, that how much you want to assign
resources to each container. Then yarn will run as many mappers in parallel
as possible.

See this:
http://hortonworks.com/blog/how-to-plan-and-configure-yarn-in-hdp-2-0/
http://docs.hortonworks.com/HDPDocuments/HDP2/HDP-2.0.6.0/bk_installing_manually_book/content/rpm-chap1-11.html

Regards,
Shahab

On Wed, Oct 15, 2014 at 8:09 AM, SACHINGUPTA <sachin@datametica.com> wrote:

> Hi guys
>
> I have situation in which i have machine with 4 processor and i have 5
> containers so does it mean i can have only 4 mappers running parallely at a
> time
>
> and number of mappers is not dependent on the number of containers in a
> machine then what is the use of container concept
>
> sorry if i have asked anything obvious.
>
> --
> Thanks
> Sachin Gupta
>
>

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