Hi, If you change RF=2 -> 3 first, the LOCAL_ONE reads might hit the new replica which is not there yet. So I would change LOCAL_ONE -> LOCAL_QUORUM first and then change the RF and then run the repair. LOCAL_QUORUM is effectively ALL in your case (RF=2) if you have just one DC, so you can change the batch CL later.
Cheers, Hannu > On 8 Sep 2016, at 14:42, Benyi Wang <bewang.t...@gmail.com> wrote: > > * I have a keyspace with RF=2; > * The client read the table using LOCAL_ONE; > * There is a batch job loading data into the tables using ALL. > > I want to change RF to 3 and both the client and the batch job use > LOCAL_QUORUM. > > My question is "Will the client still read the correct data when the repair > is running at the time my batch job loading is running too?" > > Or should I change to LOCAL_QUORUM first? > > Thanks.
