AMBARI-2844. HistoryServer2 and RM files not on Ganglia. (ncole)

ambari-agent/src/main/puppet/modules/hdp-ganglia/manifests/server.pp

@@ -70,14 +70,9 @@ class hdp-ganglia::server(
       role => 'server'
     }
   }
-  if ($hdp::params::is_rmnode_master) {
-    hdp-ganglia::config::generate_server { 'HDPResourceManager':
-      ganglia_service => 'gmond',
-      role => 'server'
-    }
-  }
-  if ($hdp::params::is_hsnode_master) {
-    hdp-ganglia::config::generate_server { 'HDPHistoryServer':
+
+  if (hdp_get_major_stack_version($stack_version) >= 2) {
+    hdp-ganglia::config::generate_server { ['HDPResourceManager', 'HDPHistoryServer']:
       ganglia_service => 'gmond',
       role => 'server'
     }