Change IP or Hostname

If you need to change the IP address or hostname of a node or a cluster after TigerGraph is up and running, you can change them by running the following commands as the tigergraph admin user.(Search for the JSON field called "Hostlist").

  1. Pause your database operations.

  2. Shut down services.

The command gadmin init etcd initializes the etcd component of TigerGraph, while gadmin stop all stops all running TigerGraph services. Before change IP/hostname(s):

gadmin init etcd
gadmin stop all

  1. Make your IP changes

  2. Edit the .tg.cfg file, replacing the old IP/hostname information with the new information.

  3. Apply the IP/hostnames to TigerGraph

The command updates the TigerGraph host list using IPs or hostnames from '~/.tg.cfg' to define cluster nodes for deployment.

The command initializes the TigerGraph cluster without stopping running services (--skip-stop) and also initializes etcd, the distributed key-value store for configuration and coordination (--init-etcd).

After change IP/hostname(s):
gadmin config entry System.HostList --file ~/.tg.cfg  # Edit IP/hostname here
gadmin init cluster --skip-stop --init-etcd