I tried debugging today and ran a simple hive count(*) from a table when the firewall is up,
I found thats it connecting randomly port to 17472 which is not listed at all in the documentation.
And so the query was hanging as expected… when I brought it down, it wrapped up in secs.
Why is it trying to use ports randomly apart from whats mentioned on the install doc.. and how can I refine it to use a selected list of ports?
I dont see any alerts in ambari.