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From Lukas Nalezenec <lukas.naleze...@firma.seznam.cz>
Subject Re: The relation between the number of partitions, number of workers, number of mappers
Date Mon, 22 Sep 2014 22:08:49 GMT
Hi,

Number of mappers = number of workers
Number of partitions = (multiplier * (number of workers) ^ 2 ) by default
(multiplier = 1 by default)

Lukas

On 22.9.2014 23:18, xuhong zhang wrote:
>
> I know that the number of mappers equals to the number of worker * 
>  mapred.tasktracker.map.tasks.maximum
>
> How about the number of partitions´╝č
>
> Thanks
>
> -- 
> Xuhong Zhang


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