Cluster is not reachable
This error indicates that the DPS containers are not able to resolve a provided hostname or use the IP address to connect to the machine.
Failed: This is not a valid Ambari URL.
DNS resolution is not setup.
There are firewall or other networking restrictions that are preventing access.
Verify that the specified hostname or IP address is valid and reachable from the DPS host machine. If it is reachable, try adding the hostname resolution to the DPS container using the ./dpdeploy.sh utils add-host <ip> <host> command.
Verify if network connectivity settings, such as firewalls, are configured correctly.
See the dpdeploy.sh Script Command Reference.