[cheddar]

lgsilver, it really depends on what kinds of queries you are doing. For something like "who viewed my profile" where you are likely to have a very selective where clause that matches only a few hundred rows, getting thousands of queries a second should be possible.

Most of the use cases where I've seen Druid used are scanning and aggregating billions of rows per query, in that world it requires a bit more hardware to achieve thousands of queries per second. Fwiw, we also have user-facing flows at Yahoo that are ingesting multiple billions of events per day powered by Druid.

One thing that I think makes it really hard to compare these systems is the lack of a meaningful benchmark. One of the difficulties with coming up with a meaningful benchmark is the wide variance in use cases and different ways of shaping the same problems.