AMBARI-9858 Required Property field for Falcon in Customize Services Page for 2.1 Stack. (ababiichuk)

ambari-server/src/main/resources/common-services/FALCON/0.5.0.2.1/configuration/falcon-startup.properties.xml

@@ -136,6 +136,11 @@
     <value>1000</value>
     <description></description>
   </property>
+  <property>
+    <name>*.falcon.graph.preserve.history</name>
+    <value>false</value>
+    <description></description>
+  </property>
   <!--properties without default values-->
   <property>
     <name>*.falcon.http.authentication.cookie.domain</name>