On Fri, Jun 28, 2019 at 8:37 AM Ayub M <hia...@gmail.com> wrote: > Hello, I have a cluster with 3 nodes - say cluster1 on AWS EC2 instances. > The cluster is up and running, took snapshot of the keyspaces volume. > > Now I want to restore few tables/keyspaces from the snapshot volumes, so I > created another cluster say cluster2 and attached the snapshot volumes on > to the new cluster's ec2 nodes. Cluster2 is not starting bcz the system > keyspace in the snapshot taken was having cluster name as cluster1 and the > cluster on which it is being restored is cluster2. How do I do a restore in > this case? I do not want to do any modifications to the existing cluster. >
Hi, I would try to use the same cluster name just to be able to restore it and ensure that nodes of cluster2 cannot talk to cluster1 by the means of setting up Security Groups, for example. Also when I do restore do I need to think about the token ranges of the old > and new cluster's mapping? > Absolutely. For a successful restore you must ensure that you restore a snapshot from a rack (Avalability Zone, if you're using the EC2Snitch) into the same rack in the new cluster. Regards, -- Alex
