Is it possible to change the hostname of the servers running Cassandra and OpenSearch on Ubuntu?
Other than modifying the hostname on the OS level, are there any settings/procedures on application level to be taken care of?
Laszlo Szabados [DevOps Enabler] Selected answer as best 21st June 2023
Hi Laszlo,
If you are using the IP addresses everywhere and not hostnames, then there should be no problem changing the hostname of the server. I would still recommend if you are doing these types of actions, to always first do it on your staging/demo environment before doing this on a production environment.
Laszlo Szabados [DevOps Enabler] Selected answer as best 21st June 2023