On Tue, Mar 2, 2010 at 7:10 AM, M. Edward (Ed) Borasky <zzn...@gmail.com>wrote:

> I don't know if I've seen this anywhere on the web - my apologies if
> you've posted something, or if this is something you don't want to
> disclose. I see that Twitter has gone with Cassandra as a "non-SQL"
> database, and I'm wondering if there are any blog posts on the
> decision process - why was Cassandra chosen over, say CouchDB, MongoDB
> or some of the other fairly well known persistence mechanisms? I
> suspect I know the answer relative to a traditional RDBMS -
> performance and scalability - but I see advocates for various open-
> source databases of the non-SQL variety in friendly and sometimes not-
> so-friendly competition and the "Cassandra advocates" don't seem to be
> very vocal. So - why Cassandra?

Raffi Krikorian
Twitter Platform Team

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