I am ok with taking upto 2 hours of planned downtime. The problem is all the IPs will change at the same time and the previous IPs will no longer be available. So it's either all old IPs or all new IPs.
Rahul Neelakantan 678-451-4545 > On Jul 25, 2014, at 7:23 PM, Robert Coli <rc...@eventbrite.com> wrote: > >> On Fri, Jul 25, 2014 at 3:54 PM, Rahul Neelakantan <ra...@rahul.be> wrote: >> I need to change the IPs of all nodes in my ring in a flash cut, at the same >> time. Any recommendations on how to do this? > > What are your uptime requirements as you do this? > > Because no, there's no way to change the ip address on all Cassandra nodes in > a cluster simultaneously and have it stay available. > > https://engineering.eventbrite.com/changing-the-ip-address-of-a-cassandra-node-with-auto_bootstrapfalse/ > > Is how you do it with a rolling restart. > > =Rob >
