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From Ted Yu <yuzhih...@gmail.com>
Subject Re: Tall good with Scans, Wide good with Gets???
Date Wed, 22 Jan 2014 18:12:50 GMT
See
http://search-hadoop.com/m/nAAad2wRi03/Is+get+a+private+case+of+scan&subj=Re+Is+get+a+private+case+of+scan+

Cheers


On Wed, Jan 22, 2014 at 10:09 AM, Tianying Chang <tychang@gmail.com> wrote:

> Hi,
>
> I watched this youtube video http://www.youtube.com/watch?v=_HLoH_PgrLk by
> Lars George. It is really good one!
>
> I just have one thing still cannot understand. It said Tall is good for
> Scan, Wide is good for Get. My understanding is that Scan and Get is using
> the same code underlying. It first seek to the specific kv, check data,
> after done, then do next() . Considering the underlying storage is same for
> wide or tall, and the code to do scan/get is the same. why Tall is good for
> Scan, and wide is good for Get?
>
> Does anyone know why? This really puzzles me.
>
> Thanks a lot!
> Tian-Ying
>

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