AMBARI-13610. Spark service has required ,empty configs : spark_thrift_cmd_opts(Upgrade from 2.0.0/2.0.1/2.0.2 to 2.1.3) (aonishuk)

ambari-server/src/main/resources/common-services/SPARK/1.2.0.2.2/configuration/spark-env.xml

@@ -103,7 +103,9 @@ fi
   <property>
     <name>spark_thrift_cmd_opts</name>
     <description>additional spark thrift server commandline options</description>
-    <value>
-    </value>
+    <value></value>
+    <value-attributes>
+      <empty-value-valid>true</empty-value-valid>
+    </value-attributes>
   </property>
 </configuration>