Known issues with applications.
The subdomain names on the Application page has some constraints, but the CDSW UI may not display a complete error message when these are violated.
Workaround: Use the characters from the set of ASCII letters, digits, and hyphens (a-z, 0-9, -) to form the subdomain name. Ensure that the subdomain name does not start or end with a hyphen.
Cloudera Bug: DSE-11883