On Sun, 2009-11-15 at 00:31 -0700, Shane Hathaway wrote: > Roché Compaan wrote: > > On Sat, 2009-11-14 at 14:23 -0700, Shane Hathaway wrote: > >> I think proper construction of horizontally scalable databases must be > >> done partly at application level, since a lot of the issues to be solved > >> are specific to the application. > > > > What are the issues you're talking about? > > Every database system has almost countless issues to balance, such as > durability, consistency, performance, freshness, availability, etc. The > demands of horizontal scaling make the issues too complex to completely > delegate to a database layer.
These concerns don't disappear when implementing a solution to big databases at application level. In my experience it becomes even more complex at application level and you have to do an inordinate amount of configuration to manage partitions. With the z3c.sharding implementation you would have to configure multiple containers. I can't see why it wouldn't be possible to develop a ZODB storage similar to hypertable http://code.google.com/p/hypertable/wiki/ArchitecturalOverview -- Roché Compaan Upfront Systems http://www.upfrontsystems.co.za _______________________________________________ For more information about ZODB, see the ZODB Wiki: http://www.zope.org/Wikis/ZODB/ ZODB-Dev mailing list - ZODB-Dev@zope.org https://mail.zope.org/mailman/listinfo/zodb-dev
