accumulo-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Josef Roehrl <jroe...@phemi.com>
Subject Re: Accumulo database type: columnar?
Date Wed, 25 Mar 2015 00:22:20 GMT
Actually, the Wikipedia article doesn't say column-oriented.  And, anyway,
it would still be a key/value store notwithstanding data locality groups
which are just a store efficiency that doesn't change the logical ordering
of key/values.

On Tue, Mar 24, 2015 at 12:23 PM, Hider, Sandy <Sandy.Hider@jhuapl.edu>
wrote:

> According to Wikipedia:  http://en.wikipedia.org/wiki/Apache_Accumulo
> Accumulo is a column-oriented database.   Wikipedia defines column-oriented
> this way " A column-oriented database serializes all of the values of a
> column together, then the values of the next column, and so on."
>
> I understand it is possible to store some column related data together
> with locality groups but wouldn't the default behavior be key/value store
> type database instead of column-oriented?
>
> Thanks,
>
> Sandy
>
>
>
>
>


-- 


Josef Roehrl
Software Developer
*PHEMI Health Systems*
180-887 Great Northern Way
Vancouver, BC V5T 4T5
604-336-1119
Website <http://www.phemi.com/> Twitter <https://twitter.com/PHEMIHealth>
Linkedin
<http://www.linkedin.com/company/3561810?trk=tyah&trkInfo=tarId%3A1403279580554%2Ctas%3Aphemi%20hea%2Cidx%3A1-1-1>

Mime
View raw message