Ranger Admin Process alert

[#1]

After installing ranger on my cluster, one alert is always on

Ranger Admin Process Connection failed to http://node4-ip-172-31-21-57.eu-west-1.compute.internal:80 (<urlopen error [Errno 111] Connection refused>) 

I'm using ec2 and all ports are open. when i try to telnet my host on port 80 i'm getting this :

telnet node4-ip-172-31-21-57.eu-west-1.compute.internal 80
Trying 172.31.21.57...
telnet: connect to address 172.31.21.57: Connection refused

Config : centos 7, hdp 2.3, Ambari 2.1

[#2 · Accepted solution]

Finally i fixed my issue, the problem was the ranger external url set to node4-ip-172-31-21-57.eu-west-1.compute.internal

After adding http and port : http://node4-ip-172-31-21-57.eu-west-1.compute.internal:6080 the alert disappears