Hello, We upgraded a cassandra cluster from 1.2.18 to 2.0.10, and it looks like repair is significantly more expensive now. Is this expected?
We schedule rolling repairs through the cluster. With 1.2.18 a repair would take 3 hours or so. The first repair after the upgrade has been going on for over a day now, and still hasn't finished. The repair is doing a lot more io as well. We have 24 nodes in our cluster, about 400 gigs of sstables per node, and are using vnodes. All machines are using ssds. Thanks, Sean