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From SACHINGUPTA <sac...@datametica.com>
Subject Re: number of mappers allowed in a container in hadoop2
Date Wed, 15 Oct 2014 12:18:21 GMT
but Shahab if i have only 4 core machine then how yarn can run more then 
4 mappers in parallel
On Wednesday 15 October 2014 05:45 PM, Shahab Yunus wrote:
> 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 
> <mailto: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
>
>

-- 
Thanks
Sachin Gupta


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