On Sun, 17 Oct 2021 21:39:06 GMT, Mark Sheppard <mshep...@openjdk.org> wrote:
> I think that a hostname is constant while a host is up, but it can be > changed, and when changed a host restart is required. I don't think it is > quite as dynamic as has been suggested, but I open to correction. It is possible to change a host name without host restart. What has been tested: - Checked O/S type - Linux - `hostnamectl` cmd was used to change a host name - In output below there is only one `jshell` instance running. jshell> InetAddress.getLocalHost() $1 ==> test-host-name/192.168.0.155 $ hostnamectl set-hostname 'test-host-name-changed' # Need to sleep for 5 seconds since local host # is cached for 5 seconds since last resolution $ sleep 5 jshell> InetAddress.getLocalHost() $2 ==> test-host-name-changed/192.168.0.155 I believe it proves that we need to treat a host name as dynamically changing information. ------------- PR: https://git.openjdk.java.net/jdk/pull/5822
