YARN-2192. TestRMHA fails when run with a mix of Schedulers. (Anubhav Dhoot via kasha)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1605139 13f79535-47bb-0310-9956-ffa450edef68

hadoop-yarn-project/CHANGES.txt

@@ -163,6 +163,9 @@ Release 2.5.0 - UNRELEASED
     YARN-2074. Changed ResourceManager to not count AM preemptions towards app
     failures. (Jian He via vinodkv)
 
+    YARN-2192. TestRMHA fails when run with a mix of Schedulers.
+    (Anubhav Dhoot via kasha)
+
   OPTIMIZATIONS
 
   BUG FIXES 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestRMHA.java

@@ -96,10 +96,7 @@ public class TestRMHA {
     configuration.setBoolean(YarnConfiguration.YARN_ACL_ENABLE, true);
     ClusterMetrics.destroy();
     QueueMetrics.clearQueueMetrics();
-    MetricsSystem ms = DefaultMetricsSystem.instance();
-    if (ms.getSource("ClusterMetrics") != null) {
-      DefaultMetricsSystem.shutdown();
-    }
+    DefaultMetricsSystem.shutdown();
   }
 
   private void checkMonitorHealth() throws IOException {