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Posted to common-user@hadoop.apache.org by Alejandro Montenegro <aa...@gmail.com> on 2010/08/19 23:13:20 UTC

what "role" should I assign the weakest node in a hadoop cluster

Hi,
Im working on a proof of concept with hadoop and I have got a little lab
with 4 machine, one of those has half of ram memory than the rest so I would
llike to assign it the less process intensive work for this machine, I
believe it is the JobTracker/NameNode but want to hear your opinion.

thanks
-- 
Alejandro Montenegro del Pino.
Viña del Mar - Chile
phone: (+56) 9-68358690

Re: what "role" should I assign the weakest node in a hadoop cluster

Posted by Ted Yu <yu...@gmail.com>.

It depends on how weak this node is because NameNode is SPOF.

On Thu, Aug 19, 2010 at 2:13 PM, Alejandro Montenegro <aa...@gmail.com>wrote:

> Hi,
> Im working on a proof of concept with hadoop and I have got a little lab
> with 4 machine, one of those has half of ram memory than the rest so I
> would
> llike to assign it the less process intensive work for this machine, I
> believe it is the JobTracker/NameNode but want to hear your opinion.
>
> thanks
> --
> Alejandro Montenegro del Pino.
> Viña del Mar - Chile
> phone: (+56) 9-68358690
>