Re: commodity vs. high perf machines: which would you rather

If you are going to be buying new machines, I think the
following blurb from jcole's blog says it best (for
datanodes at least: namenodes are a whole different
ballgame):

> What does it mean for the machine to be
“commodity”? It means that the
> components are standardized, common, and the price is
set by the market,
> not by a single corporation. Use commodity machines
configured with a good
> balance of price vs. performance.
http://jcole.us/blog/archives/2007/06/1
0/scaling-out-and-up-a-compromise/


Thanks,
Stu

-----Original Message-----
From: Ted Dunning <tdunningveoh.com>
Sent: Wednesday, November 7, 2007 4:20pm
To: hadoop-userlucene.apache.org
Subject: Re: commodity vs. high perf machines: which would
you rather


My mileage computation came out essentially the same as what
Doug says.

I use some cast-off machines that were not reliable enough
for other
applications.  They originally cost us about 2/3 what our
normal production
boxes cots and achieve almost exactly 1/2  as much.  Our
production boxes
are typically dual CPU's with dual cores.


On 11/7/07 12:27 PM, "Doug Cutting"
<cuttingapache.org> wrote:

>   So I'd hazard that moderately high-end commodity
hardware is the most
> cost-effective for Hadoop today.  YMMV.