AMBARI-12488. RU - Use haadmin failover command instead of killing ZKFC during upgrade/downgrade (alejandro)

ambari-server/src/main/resources/stacks/HDP/2.2/upgrades/upgrade-2.2.xml

@@ -359,6 +359,12 @@
           <task xsi:type="restart" />
         </upgrade>
       </component>
+
+      <component name="ZKFC">
+        <upgrade>
+          <task xsi:type="restart" />
+        </upgrade>
+      </component>
     </service>
 
     <service name="MAPREDUCE2">