They are not copying Cassandra with that, as it was in development for some time before Cassandra was released (possibly even before Cassandra development started). The BigTable-esque aspects, if they are 'copied' from anywhere, are copied from BigTable, just as they are in Cassandra. The underlying storage originated with their Cosmos project, and the layers with various semantics came about at least 3 years ago (possibly more) when various things were consolidated under the Azure umbrella. Definitely a lot of interesting technology in there.
b public reference for some of that - http://www.zdnet.com/blog/microsoft/a-microsoft-code-name-a-day-cosmos/632?tag=mantle_skin;content On Wed, Sep 8, 2010 at 2:20 PM, Peter Harrison <cheetah...@gmail.com> wrote: > Microsoft has essentially copied the Cassandra approach for it's Table > Storage. See here: > > http://www.codeproject.com/KB/azure/AzureStorage.aspx > > It is I believe a compliment of sorts, in the sense that it is a > validation of the Cassandra approach. The reason I know about this is > that I attended a presentation about Azure last week, and one of the > Azure team told us all about it. The Table Storage is essentially > Cassandra; although I guess reimplemented. > > That said it would have been better for them to actually use Cassandra > and commit development effort to help the project than simply > reimplement. Given their desire to promote Azure as a platform for > open source applications I would have thought this would be a no > brainer. >
