Created 12-09-2022 05:24 AM
The following areas normally cause this problem:
1) the connection from Ambari agent host to Ambari Server got lost.
2) firewall issue blocked connections.
3) hostname and IP address are not being set correctly in /etc/hosts
You can compare the output using these APIs:
> curl u user:paswd http://AmbariHost:8080/api/v1/hosts