On Fri, Aug 14, 2015 at 11:33 AM, Stan Lemon <sle...@salesforce.com> wrote:
> Is it safe to run repairs in parallel on multiple nodes in the same DC at > the time or is this discouraged? > If you have enough headroom, it's safe. It may impact latency. It also depends on whether you have vnodes or not. If you don't, and you use -par option to repair, you will repair a set of nodes but not all nodes. If you do use vnodes, you will effectively repair a range already on all nodes with -par repair. If you do a rolling -par -pr on a cluster with vnodes, you'll probably be getting close to ideal parallelism anyway. =Rob
