Re: Impact on running cassandra cluster from changing hostnames...

2010-09-03 Thread Jonathan Ellis
It's supposed to work, but it's definitely a rare thing to do. You should be concerned about other nodes rejecting the new node saying "remember this token? i'm at ip Y now instead of Z." if that happens then shutting down all nodes and restarting will fix it. On Thu, Sep 2, 2010 at 3:03 PM, Ned

Impact on running cassandra cluster from changing hostnames...

2010-09-02 Thread Ned Wolpert
Folks- What is the correct process of changing the hostnames and IPs of each server in a cassandra cluster. In my use-case we're shutting it down and then changing the names and ips. No changes to hardware during the processes. Beyond config changes, what should I be concerned about? -- Virtua