- AOL CTO: "We need a solution with no central point of failure to handle couple of million updates/hr on top of MySQL."
In the CryptDB SOSP 2011 paper, they analyzed a trace of queries hitting sql.mit.edu for ten days. I've reproduced their figure 7 here:
Databases Tables Columns Complete schema 8,548 177,154 1,244,216 Used in queries 1,193 18,162 128,840
These numbers might be useful in estimating the number of tables in a RAMCloud cluster.