[Zope3-dev] Atomic reads w ZEO and ZODB

[Gary Poster]

On Aug 31, 2005, at 12:07 PM, David Huttleston Jr wrote:
...
> But, I'm fuzzy on how the zodb prevents inconsistent reads.
...

Hi David.  A quick answer is that the ZODB implements optimistic  
multi-version concurrency control, similar to the default PostgreSQL  
behavior.  This link describes the proposal, which is pretty close to  
the way it turned out, as far as I know.

http://www.zope.org/Wikis/ZODB/MultiVersionConcurrencyControl

Gary