Change the IP address of a node

Steps to change the IP address of a node.

Procedure

To speed up the restart process, before stopping the HCD service, run nodetool drain.
Stop HCD.
Replace the old IP address in the cassandra.yaml with the new one.
- listen_address
- broadcast_address
- (Optional if already set) native_transport_address
If the node is a seed node, update the - seeds parameter in the seed_provider list cassandra.yaml file on all nodes.
If the endpoint_snitch is PropertyFileSnitch, add an entry for the new IP address in the the cassandra-topology.properties file on all nodes.

Do NOT remove the entry for the old IP address.
Update the DNS and the local host IP settings.
Start HCD on the local host.
If the using the PropertyFileSnitch, then perform a rolling restart.