@Meena Rajani, The API returns empty content on success. You can check the response code to make sure that it passed. assert response.status_code == 200 However if you still want to have more validations you can do the below import requests from requests.auth import HTTPBasicAuth ambari_username = "admin" ambari_password = "admin" base_url = "http://ambari_host:8080/api/v1/clusters/clustername/hosts/host1" basic_auth = HTTPBasicAuth(ambari_username, ambari_password) headers = {'X-Requested-By' : 'ambari'} response = requests.get(base_url, auth=basic_auth, headers=headers,verify=False) print response.status_code maint_state = response.json()["Hosts"]["maintenance_state"] print maint_state assert maint_state == "OFF" Thanks, Aditya ... View more

@Sedat Kestepe, Is this a kerberized cluster?. Can you please check the below values. 1)zeppelin.notebook.storage is set to 'org.apache.zeppelin.notebook.repo.FileSystemNotebookRepo' in Advanced zeppelin-config 2) If it is a kerberized cluster then add these two configs in Custom zeppelin-config zeppelin.server.kerberos.keytab= /etc/security/keytabs/zeppelin.server.kerberos.keytab (default) zeppelin.server.kerberos.principal=zeppelin@REALM.COM (default) 3) Check if this folder exist in HDFS /user/zeppelin/notebook Make these changes and restart zeppelin. ... View more

@Nirmal J, Looks like all your NodeManagers are down or you dont have any nodemanagers. Go to Yarn and check if node managers are running or not. Start them if they are not running. If you do not have node managers add a node manager and start it. Adding a Nodemanager: Click on Hosts -> Select a Host -> Add -> NodeManager. Thanks, Aditya ... View more

@M B, Atlas will by default use the HBase installed as part of the cluster. If you want to use another instance of Hbase may be a standalone version of HBase which is not part of HDP then you have to update the property 'HBASE_CONF_DIR' to point it to another version of HBase. This has nothing to do with Ranger installation. You should have seen this initially while adding atlas as well and you will be seeing this while adding other services. Just make sure you use the right value for HBASE_CONF_DIR if you are using other instance of HBase. Else you can just ignore the warning. Thanks, Aditya ... View more