I downloaded the HDP 2.3 VM.
I was using it perfectly fine. But many times I would shutdown the machine with Poweroff option of VM.
Now I am not able to login to Ambari dashboard.
I have uploaded the video here (1.5 mins) to show the issue
I have tried the following
All service i can see says OK in terminal.
However when i login on dashboard
http://127.0.0.1:8080 with username password admin/admin
The dashboard just does not allow me to login. It stays at the same page after refreshing once.
Try to click "ctrl-shift-r" or "cmd-shift-r" on Mac at the ambari UI window. This will clear the cache on the browser. Also if that doesn't help, on the UI screen, right click and inspect element, see what happens when browser communicates with the ambari server. That should give you more insight into the problem. I always type "sudo shutdown now -h" to shutdown the VM.
It's hard to tell anything without any debug background in the question.
At the very beginning, you need to check browser debug messages and second mandatory option - check Ambari Server logs. Try to found something abnormal in the logs, like errors or warnings; these messages will help to us localize the problem
P.S. Power off option is not the best way in case of database presence on that host. Use shutdown command instead or shutdown (acpi method) option on your vm.