Right! Another reason why I just stick with sequential decommissions. Maybe someone here could shed some light on what happens under the covers if parallel decommissions are kicked off.
-- Jacob Shadix On Tue, Apr 11, 2017 at 12:55 PM, benjamin roth <brs...@gmail.com> wrote: > I did not test it but I'd bet that parallel decommision will lead to > inconsistencies. > Each decommission results in range movements and range reassignments which > becomes effective after a successful decommission. > If you start several decommissions at once, I guess the calculated > reassignments are invalid for at least one node after the first node > finished the decommission process. > > I hope someone will correct me if i am wrong. > > 2017-04-11 18:43 GMT+02:00 Jacob Shadix <jacobsha...@gmail.com>: > >> Are you using vnodes? I typically do one-by-one as the decommission will >> create additional load/network activity streaming data to the other nodes >> as the token ranges are reassigned. >> >> -- Jacob Shadix >> >> On Sat, Apr 8, 2017 at 10:55 AM, Vlad <qa23d-...@yahoo.com> wrote: >> >>> Hi, >>> >>> how multiple nodes should be decommissioned by "nodetool decommission"- >>> one by one or in parallel ? >>> >>> Thanks. >>> >> >> >
