The risk is not negligible if you expect strictly correct responses

The only way to do this correctly is very, very labor intensive at the moment, 
and it requires repair between rebuilds and incrementally adding replicas such 
that you don’t violate consistency 

If you give me the starting topology, ending topology, and what consistency 
level you use for reads and writes I’ll describe the changes you have to do to 
do this safely



> On Nov 25, 2021, at 8:49 AM, Erick Ramirez <erick.rami...@datastax.com> wrote:
> 
> 
> Yes, you are correct that the source may not necessarily be fully consistent. 
> But this risk is negligible if your cluster is sized-correctly and nodes are 
> not dropping mutations.
> 
> If your nodes are dropping mutations because they're overloaded and cannot 
> keep up with writes, rebuild is probably the least of your problems. Cheers!

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