We support changing IPs to _new_ IPs but I'd be surprised if it can handle changing it to the IP of another node. I'd try using a 3rd "temporary" IP if I wanted to swap two.
On Wed, Mar 23, 2011 at 6:18 PM, aaron morton <aa...@thelastpickle.com> wrote: > Can any of the dev's jump in here ? Whats best practice ? > Aaron > On 24 Mar 2011, at 08:32, Casey Deccio wrote: > > Hi Aaron, > > I'm using 7.3 (upgrading to 7.4). Basically I needed to swap the IPs of two > of my nodes. Unfortunately, after I did so, neither was accessible in the > original ring anymore. I saw the warning message in the logs about the > token being reassigned. Maybe I didn't give it enough time, but > accessibility faltered, so I reverted the IPs of the nodes, decommissioned > them each, swapped their IPs again, then brought them back into the ring one > at a time. That seemed to work. I admit that I'm still quite a novice when > it comes to cassandra's workings, and since my system was unresponsive for a > time, my goal was bringing it back up, and I didn't dive into extensive > analysis. > > Casey > > On Wed, Mar 23, 2011 at 2:16 AM, aaron morton <aa...@thelastpickle.com> > wrote: >> >> Which version are you using ? >> It looks like using 0.7X (and prob 0.6) versions you can just shutdown the >> node and bring it back up with the new IP and It Just >> Works https://issues.apache.org/jira/browse/CASSANDRA-872 >> I've not done it before, anyone else ? >> Aaron >> On 23 Mar 2011, at 07:53, Casey Deccio wrote: >> >> What is the process of changing the IP address for a node in a cluster? >> >> Casey >> > > > -- Jonathan Ellis Project Chair, Apache Cassandra co-founder of DataStax, the source for professional Cassandra support http://www.datastax.com
