Hello, We recently upgraded from Cassandra 2.1 to 3.11.2 on one cluster. The process went OK including upgradesstable but we started to experience high latency for r/w, occasional OOM and long GC pause after.
For the same cluster with 2.1, we didn't have any issues like this. We also kept server specs, heap, all the same in post upgrade Has anyone else had similar issues going to 3.11 and what are the major changes that could have such a major setback in the new version? Ma Dega
