hadoop-common-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Ted Dunning <tdunn...@veoh.com>
Subject Re: hardware specs for hadoop nodes
Date Tue, 25 Sep 2007 16:37:45 GMT



On 9/25/07 9:27 AM, "Bob Futrelle" <bob.futrelle@gmail.com> wrote:

> 
> How does Hadoop handle multi-core CPUs?  Does each core run a distinct copy
> of the mapped app?  Is this automatic, or need some configuration, or what?

Works fine.  You need to tell it how many maps to run per machine.  I expect
that this can be tuned per machine.

> Or should I just spread Hadoop over some friendly machines already in my
> College, buying nothing?

Or both?  You will get interesting results all three ways.


Mime
View raw message