I've switched from SS to NTS on 1.0.x on a single-az cluster with RF3 (which obviously created a single-dc, single-rack NTS cluster). Worked without a hitch. Also switched from SimpleSnitch to Ec2Snitch on-the-fly. I had about 12GB of data per node.
Of course, your mileage may vary, so while I can report that it has been done successfully, I'd still recommend testing it out first... /Janne On Mar 31, 2012, at 22:45 , aaron morton wrote: > I'm kind of guessing here because it's not something I've done before. > Obviously test things first… > > The NTS with a single DC and a single Rack will place data in the same > location as the Simple Strategy. You *should* be able to change the > replication strategy from, say, SS with RF 3 to NTS with RF 3 in a single DC > with a single Rack. > > I think you can also migrate to using multiple racks under NTS, but I would > need to double check the code. > > Cheers > > ----------------- > Aaron Morton > Freelance Developer > @aaronmorton > http://www.thelastpickle.com > > On 27/03/2012, at 11:31 AM, Deno Vichas wrote: > >> On 3/26/2012 2:15 PM, aaron morton wrote: >>>> - can i migrate the replication strategy one node at a time or do i need >>>> to shut to the whole cluster to do this? >>> Just use the NTS from the start. >> but what if i already have a bunch (8g per node) data that i need and i >> don't have a way to re-create it. >> >> >> thanks, >> deno >
