Hi ALL: We have successfully installed Storm Plugin for apache ranger, and we are also able to create policies within ranger, the problem is that when we click the Connection Test button after add a storm service,we got a error about Kerberos.The error report is that: org.apache.ranger.plugin.client.HadoopException: executeUnderKerberos: Login failure using given configuration parameters, username : `admin`.. executeUnderKerberos: Login failure using given configuration parameters, username : `admin`.. kerberos.example.com: Name or service not known. Hadoop Version:2.7.2 Ranger Version: 0.62 Storm Version:1.0.0 Any ideas or help in this regard will be appreciated. Thanks in advance. Regards, Benny ... View more