i am trying to use that is in cluster definition file, but its not working
If you have used the
hopsworks-installer.sh you can have a look at this answer: What is the default user name and password of Payara server?
Otherwise the default credentials are
If you are trying to log in from the Hopsworks Admin panel, the email/password is the same you use to log in into the Hopsworks application, assuming your user has HopsAdmin privileges (you can read up more here: https://hopsworks.readthedocs.io/en/latest/admin_guide/user-administration.html - regarding user administration and admin privileges)