[ZODB-Dev] [OT] NoSQL

Shane Hathaway shane at hathawaymix.org
Thu Nov 12 14:24:43 EST 2009


Encolpe Degoute wrote:
> Is there someone in the ZODB development team following this:
> http://www.rackspacecloud.com/blog/2009/11/09/nosql-ecosystem/

It is possible that ZODB unfortunately occupies the same space as SQL in 
the CAP triangle:

http://camelcase.blogspot.com/2007/08/cap-theorem.html

That is to say, ZODB applications require consistency and availability, 
so if the CAP theorem is true, then ZODB applications can not be very 
partition-tolerant.

The NoSQL databases provide availability and partition tolerance while 
foregoing absolute consistency.

Shane


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