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From "Owen O'Malley" <omal...@apache.org>
Subject Re: Doubt regarding use of HTTP during Shuffle phase
Date Wed, 27 Jun 2012 16:40:27 GMT
On Wed, Jun 27, 2012 at 9:33 AM, Pavan Kulkarni <pavan.baburao@gmail.com>wrote:

Why is HTTP used during the Shuffle phase
> instead of just creating a Hardlink?
>

The reduces run on a separate machine that the map. Hadoop doesn't use a
shared NFS file system between the machines, because it doesn't scale.

-- Owen

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