No. Rebuilds don't keep consistency as they aren't smart enough to stream from a specific replica, this all replicas for a rebuild can stream from a single replica. You need to repair after rebuilding.
If you're using NTS with #racks >= RF you can stream consistently. if this patch gets in https://issues.apache.org/jira/browse/CASSANDRA-13841 you could also achieve the same atm if you are using single tokens. On 27 Nov. 2017 20:33, "Peng Xiao" <2535...@qq.com> wrote: > Hi there, > > We know that we need to run repair regularly to make data > consistency,suppose we have DC1 & DC2, > if we add a new DC3 and rebuild from DC1,can we suppose the DC3 is > consistency with DC1 at least at the time when DC3 is rebuild successfully? > > Thanks, > Peng Xiao, >