Yes, I've just played around with it, even if what I built was fairly complex and well tested. I assume you are running with a lot of extra servers - you need e

Yes, I've just played around with it, even if what I built was fairly complex and well tested. I assume you are running with a lot of extra servers - you need extra capacity for the operations you suggest (they move data around right) that might amount to a constant 20% over provisioning from normal use at the times these operations run, obviously also adding and removing servers adds overhead too. It's not like a normal database with provisioning at all. I'd actually like a mode where Cassandra made itself artificially slower forcing you to over provision and then removed said slowness during operations that need the extra performance.