From: Bruce Snyder [mailto:bruce.sny...@gmail.com]
Sent: Friday, November 27, 2009 1:19 PM
To: general@hadoop.apache.org
Subject: Re: Introducing Cloud MapReduce
On Fri, Nov 27, 2009 at 11:34 AM, Tim Robertson
timrobertson...@gmail.com wrote:
Hi Bruce,
Interesting stuff. It looks
Todd,
We do not keep all values for a key in memory. Instead, we only keep the
partial reduce result in memory, but throw away the value as soon as it is
used. The point you raised is still very valid if the reduce state maintained
per key is large, which I hope is a very rare case. If you
On Mon, Nov 30, 2009 at 1:48 AM, huan@accenture.com wrote:
Todd,
We do not keep all values for a key in memory. Instead, we only keep the
partial reduce result in memory, but throw away the value as soon as it is
used. The point you raised is still very valid if the reduce state
