@Michael Bronson, You can get the state - STARTED/STOPPED by using the below API Calls For services curl -u {ambari-username}:{ambari-password} -H "X-Requested-By: ambari" -X GET http://{ambari-host}:{ambari-port}/api/v1/clusters/{clustername}/services/{service-name}?fields=ServiceInfo/state For components curl -u {ambari-username}:{ambari-password} -H "X-Requested-By: ambari" -X GET http://{ambari-host}:{ambari-port}/api/v1/clusters/{clustername}/components/{component-name}?fields=ServiceComponentInfo/state To get complete status info about service curl -u {ambari-username}:{ambari-password} -H "X-Requested-By: ambari" -X GET http://{ambari-host}:{ambari-port}/api/v1/clusters/{clustername}/services/{service-name} To get complete status info about component curl -u {ambari-username}:{ambari-password} -H "X-Requested-By: ambari" -X GET http://{ambari-host}:{ambari-port}/api/v1/clusters/{clustername}/components/{component-name} Replace the place holders like {ambari-username} , {ambari-password}, {ambari-host} , {ambari-port},{clustername} etc with your respective values Thanks, Aditya ... View more

@Michael Bronson Check if Yarn application is started when you start Spark2 Thrift server. Application name should be "Thrift JDBC/ODBC Server SPARK" and Application Type should be "SPARK". If the application is not started after few minutes after starting Spark2 server from Ambari GUI, there may be resource crunch on Yarn. Check the max applications allowed in Yarn and memory settings or try adding a Node manager. Thanks, Aditya ... View more