diff --git a/hadoop-yarn-project/CHANGES.txt b/hadoop-yarn-project/CHANGES.txt
index 3f71e35c699..53d70c1e804 100644
--- a/hadoop-yarn-project/CHANGES.txt
+++ b/hadoop-yarn-project/CHANGES.txt
@@ -29,9 +29,6 @@ Release 2.3.0 - UNRELEASED
     YARN-819. ResourceManager and NodeManager should check for a minimum allowed
     version (Robert Parker via jeagles)
 
-    YARN-677. Increase coverage to FairScheduler (Vadim Bondarev and Dennis Y
-    via jeagles)
-
     YARN-425. coverage fix for yarn api (Aleksey Gorshkov via jeagles)
 
   OPTIMIZATIONS
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/TestFairScheduler.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/TestFairScheduler.java
index c127f625ca4..2c0e84e1013 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/TestFairScheduler.java
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/TestFairScheduler.java
@@ -39,7 +39,6 @@ import java.util.Collections;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
-import java.util.concurrent.TimeUnit;
 
 import javax.xml.parsers.ParserConfigurationException;
 
@@ -87,8 +86,6 @@ import org.apache.hadoop.yarn.server.resourcemanager.scheduler.event.AppRemovedS
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.event.NodeAddedSchedulerEvent;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.event.NodeRemovedSchedulerEvent;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.event.NodeUpdateSchedulerEvent;
-import org.apache.hadoop.yarn.server.resourcemanager.scheduler.event.SchedulerEvent;
-import org.apache.hadoop.yarn.server.resourcemanager.scheduler.event.SchedulerEventType;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.policies.DominantResourceFairnessPolicy;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.policies.FifoPolicy;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.fifo.FifoScheduler;
@@ -103,9 +100,6 @@ import org.mockito.invocation.InvocationOnMock;
 import org.mockito.stubbing.Answer;
 import org.xml.sax.SAXException;
 
-import com.google.common.collect.ImmutableSet;
-import com.google.common.collect.UnmodifiableIterator;
-
 public class TestFairScheduler {
 
   private class MockClock implements Clock {
@@ -2318,93 +2312,6 @@ public class TestFairScheduler {
     Assert.assertEquals(1, consumption.getVirtualCores());
   }
 
-
-  @Test
-  public void testAggregateCapacityTrackingWithPreemptionEnabled() throws Exception {
-    int KB = 1024;
-    int iterationNumber = 10;
-    Configuration conf = createConfiguration();
-    conf.setBoolean("yarn.scheduler.fair.preemption", true);
-    scheduler.reinitialize(conf, resourceManager.getRMContext());
-    RMNode node = MockNodes.newNodeInfo(1, Resources.createResource(KB * iterationNumber));
-    NodeAddedSchedulerEvent nodeAddEvent = new NodeAddedSchedulerEvent(node);
-    scheduler.handle(nodeAddEvent);
-
-    for (int i = 0; i < iterationNumber; i++) {
-      createSchedulingRequest(KB, "queue1", "user1", 1);
-      scheduler.update();
-      NodeUpdateSchedulerEvent updateEvent = new NodeUpdateSchedulerEvent(node);
-      scheduler.handle(updateEvent);
-
-      assertEquals(KB,
-          scheduler.getQueueManager().getQueue("queue1").getResourceUsage().getMemory());
-      TimeUnit.SECONDS.sleep(1);
-    }
-  }
-
-  private static final class ExternalAppAddedSchedulerEvent extends SchedulerEvent {
-    public ExternalAppAddedSchedulerEvent() {
-      super(SchedulerEventType.APP_ADDED);
-    }
-  }
-
-  private static final class ExternalNodeRemovedSchedulerEvent extends SchedulerEvent {
-    public ExternalNodeRemovedSchedulerEvent() {
-      super(SchedulerEventType.NODE_REMOVED);
-    }
-  }
-
-  private static final class ExternalNodeUpdateSchedulerEvent extends SchedulerEvent {
-    public ExternalNodeUpdateSchedulerEvent() {
-      super(SchedulerEventType.NODE_UPDATE);
-    }
-  }
-
-  private static final class ExternalNodeAddedSchedulerEvent extends SchedulerEvent {
-    public ExternalNodeAddedSchedulerEvent() {
-      super(SchedulerEventType.NODE_ADDED);
-    }
-  }
-
-  private static final class ExternalAppRemovedSchedulerEvent extends SchedulerEvent {
-    public ExternalAppRemovedSchedulerEvent() {
-      super(SchedulerEventType.APP_REMOVED);
-    }
-  }
-
-  private static final class ExternalContainerExpiredSchedulerEvent extends SchedulerEvent {
-    public ExternalContainerExpiredSchedulerEvent() {
-      super(SchedulerEventType.CONTAINER_EXPIRED);
-    }
-  }
-
-  /**
-   * try to handle external events type
-   * and get {@code RuntimeException}
-   *
-   * @throws Exception
-   */
-  @Test
-  public void testSchedulerHandleFailWithExternalEvents() throws Exception {
-    Configuration conf = createConfiguration();
-    scheduler.reinitialize(conf, resourceManager.getRMContext());
-    ImmutableSet<? extends SchedulerEvent> externalEvents = ImmutableSet.of(new ExternalAppAddedSchedulerEvent(),
-        new ExternalNodeRemovedSchedulerEvent(), new ExternalNodeUpdateSchedulerEvent(),
-        new ExternalNodeAddedSchedulerEvent(), new ExternalAppRemovedSchedulerEvent(),
-          new ExternalContainerExpiredSchedulerEvent());
-
-    UnmodifiableIterator<? extends SchedulerEvent> iter = externalEvents.iterator();
-    while(iter.hasNext())
-      handleExternalEvent(iter.next());
-  }
-
-  private void handleExternalEvent(SchedulerEvent event) throws Exception {
-    try {
-      scheduler.handle(event);
-    } catch(RuntimeException ex) {
-      //expected
-    }
-  }
   
   @Test
   public void testDontAllowUndeclaredPools() throws Exception{