I also edited the /etc/hosts on all to reflect accordingly.
I also ran ambari-server setup-security and option 1 to DISABLE the https.
How do I remove current host which are still named without *.corp.* and remake my cluster please? thanks!
You can refer to this doc to know a way to rename the Hostnames to new Hostnames in your cluster:
Similarly in order to permantly delete OLD unwanted hosts from Ambari DB please check the following article:
But before manipulating the Ambari DB manually better to take a fresh Ambari DB dump so that you have back to revert back.
referencing your first link....
seems outdated from UI ....there is no Ambari Web ...Background Services as far as I can tell it is done with Host menu Actionshost-rename-issue1.pdf.... I cannot stop components, see attached.
# ambari-server update-host-names host_names_changes.json Using python /usr/bin/python Updating host names Please, confirm Ambari services are stopped [y/n] (n)? y Please, confirm there are no pending commands on cluster [y/n] (n)? y Please, confirm you have made backup of the Ambari db [y/n] (n)? y ERROR: Error executing update host names, please check the server logs. ERROR: Exiting with exit code 1. REASON: Host names update failed.
Host name change failed using this method.