Yes, but remind that there is Write Consistency and Read Consistency. To prevent the reads from reaching the other DC, you should set the Read Consistency LOCAL_ONE. As Hannu Kroger said, the LOCAL_ONE may be enough to you but maybe not if you want to be sure that your data was written also in another DC.
Lucas B. Dias 2018-05-08 7:26 GMT-03:00 Hannu Kröger <hkro...@gmail.com>: > Writes are always replicated to all nodes (if they are online). > > LOCAL_ONE in writes just means that client will get an “OK” for the write > only after at least node in local datacenter has acknowledged that the > write is done. > > If all local replicas are offline, then the write will fail even if it > gets written in your other DC. > > Hannu > > > On 8 May 2018, at 13:24, Jakub Lida <jakub.l...@gmail.com> wrote: > > Hi, > > I want to add a new DC to an existing cluster (RF=1 per DC). > Will setting consistency to LOCAL_ONE on all machines make it still > replicate write requests sent to online DCs to all DCs (including the new > one being rebuilt) and only isolate read requests from reaching the new DC? > That is basically want I want to accomplish. > > Thanks in advance, Jakub > > >
