Hello, 1. First add the hosts to your /etc/hosts files e.g in my case  $vi /etc/hosts 192.168.160.134 master.hadoop.com master 192.168.160.135 node1.hadoop.com node1 192.168.160.136 node2.hadoop.com node2   2. Restart cloudera-scm-agent on CM server $ sudo service cloudera-scm-agent restart   This should resolve your issue.   Regards, PC   ... View more

@Jonas Straub Thanks for the article. Is there any way to figure out weather service check has passed or failed from API output(and not from Ambari GUI)?I'm getting the below output but not sure how to interpret the request output. API o/p : { "href" : "http://<host ip>:8080/api/v1/clusters/DEMO/requests/11", "Requests" : { "id" : 11, "status" : "Accepted" } ... View more