So,
If you haven't heard the news yet, google is migrating off MySQL for
adwords. They decided to implement their own system, F1:
http://static.googleusercontent.com/external_content/untrusted_dlcp/research.google.com/en/us/pubs/archive/38125.pdf
It's a distributed SQL system, but they opted not to implement
'eventual consistency' -- which I very much agree with. It's fully
transactional (I think?) and trades transaction latency for the
sharding capabilities. It's an interesting take: how does it compare
to postgres? Does it truly scale?
merlin