Hi Arlington, I don't think that's possible to do live simply within the realm of Cassandra since the nodes are in separate Cassandra clusters. What you could do is do double writing from your application while doing Cassandra Bulk Loading described here: http://stackoverflow.com/a/12528029/260805.
Cheers, Jens On Fri, Apr 22, 2016 at 1:15 AM Arlington Albertson < arlingtonalbert...@gmail.com> wrote: > Hey Folks, > > I've been looking through various documentations, but I'm either > overlooking something obvious or not wording it correctly, but the gist of > my problem is this: > > I have two cassandra clusters, with two separate keyspaces on EC2. We'll > call them as follows: > > *cluster1* (DC name, cluster name, etc...) > *keyspace1* (only exists on cluster1) > > *cluster2* (DC name, cluster name, etc...) > *keyspace2* (only exists on cluster2) > > I need to perform the following: > - take keyspace2, and add it to cluster1 so that all nodes can serve the > traffic > - needs to happen "live" so that I can repoint new instances to the > cluster1 endpoints and they'll just start working, and no longer directly > use cluster2 > - eventually, tear down cluster2 (easy with a `nodetool decommission` > after verifying all seeds have been changed, etc...) > > This doc seems to be the closest I've found thus far: > > https://docs.datastax.com/en/cassandra/2.1/cassandra/operations/ops_add_dc_to_cluster_t.html > > Is that the appropriate guide for this and I'm just over thinking it? Or > is there something else I should be looking at? > > Also, this is DSC C* 2.1.13. > > TIA! > > -AA > -- Jens Rantil Backend Developer @ Tink Tink AB, Wallingatan 5, 111 60 Stockholm, Sweden For urgent matters you can reach me at +46-708-84 18 32.
