HDDS-11353. Intermittent failure in TestOzoneManagerHAWithStoppedNodes#testOMHAMetrics (#9660)

Author: ivandika3

hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/om/TestOzoneManagerHAWithStoppedNodes.java

@@ -71,7 +71,6 @@
 import org.apache.hadoop.security.UserGroupInformation;
 import org.apache.log4j.Logger;
 import org.apache.ozone.test.GenericTestUtils;
-import org.apache.ozone.test.tag.Flaky;
 import org.apache.ratis.client.RaftClient;
 import org.apache.ratis.conf.RaftProperties;
 import org.apache.ratis.protocol.ClientId;
@@ -495,7 +494,6 @@ void testIncrementalWaitTimeWithSameNodeFailover() throws Exception {
         omFailoverProxyProvider.getWaitTime());
   }
 
-  @Flaky("HDDS-11353")
   @Test
   void testOMHAMetrics() throws Exception {
     // Get leader OM
@@ -513,6 +511,11 @@ void testOMHAMetrics() throws Exception {
     getCluster().restartOzoneManager(leaderOM, true);
     waitForLeaderToBeReady();
 
+    // Do some writes so that the old leader can receive AppendEntries
+    // which will trigger notifyLeaderChanged, instead of relying on
+    // AppendEntries
+    setupBucket();
+
     // Get the new leader
     OzoneManager newLeaderOM = getCluster().getOMLeader();
     String newLeaderOMId = newLeaderOM.getOMNodeId();