Running these 2 commands are noop IO wise: nodetool setcompactionthroughput 0 nodetool setstreamtrhoughput 0
If trying to recover or rebuild nodes, it would be super helpful to get more than ~120mbit/s of streaming throughput (per session or ~500mbit total) and ~5% IO utilization in (8) 15k disk RAID10 (per cf). Even enabling multithreaded_compaction gives marginal improvements (1 additional thread doesn't help all that much and was only measurable in CPU usage). I understand that these processes should take lower priority to servicing reads and writes. However, in emergencies it would be a nice feature to have a switch to recover a cluster ASAP. Thanks, John
