Merge r1617341 from trunk. YARN-2138. Cleaned up notifyDone* APIs in RMStateStore. Contributed by Varun Saxena

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1617342 13f79535-47bb-0310-9956-ffa450edef68

hadoop-yarn-project/CHANGES.txt

@@ -92,6 +92,9 @@ Release 2.6.0 - UNRELEASED
     YARN-2337. ResourceManager sets ClientRMService in RMContext multiple times.
     (Zhihai Xu via kasha)
 
+    YARN-2138. Cleaned up notifyDone* APIs in RMStateStore. (Varun Saxena via
+    jianhe)
+
   OPTIMIZATIONS
 
   BUG FIXES

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/recovery/RMStateStore.java

@@ -52,13 +52,13 @@ import org.apache.hadoop.yarn.server.resourcemanager.recovery.records.AMRMTokenS
 import org.apache.hadoop.yarn.server.resourcemanager.recovery.records.ApplicationAttemptStateData;
 import org.apache.hadoop.yarn.server.resourcemanager.recovery.records.ApplicationStateData;
 import org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMApp;
-import org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMAppNewSavedEvent;
+import org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMAppEvent;
+import org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMAppEventType;
 import org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMAppState;
-import org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMAppUpdateSavedEvent;
 import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttempt;
+import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptEvent;
+import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptEventType;
 import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptState;
-import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.event.RMAppAttemptNewSavedEvent;
-import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.event.RMAppAttemptUpdateSavedEvent;
 import org.apache.hadoop.yarn.state.InvalidStateTransitonException;
 import org.apache.hadoop.yarn.state.SingleArcTransition;
 import org.apache.hadoop.yarn.state.StateMachine;
@@ -132,7 +132,8 @@ public abstract class RMStateStore extends AbstractService {
       LOG.info("Storing info for app: " + appId);
       try {
         store.storeApplicationStateInternal(appId, appStateData);
-        store.notifyDoneStoringApplication(appId, null);
+        store.notifyApplication(new RMAppEvent(appId,
+               RMAppEventType.APP_NEW_SAVED));
       } catch (Exception e) {
         LOG.error("Error storing app: " + appId, e);
         store.notifyStoreOperationFailed(e);
@@ -156,7 +157,8 @@ public abstract class RMStateStore extends AbstractService {
       LOG.info("Updating info for app: " + appId);
       try {
         store.updateApplicationStateInternal(appId, appStateData);
-        store.notifyDoneUpdatingApplication(appId, null);
+        store.notifyApplication(new RMAppEvent(appId,
+               RMAppEventType.APP_UPDATE_SAVED));
       } catch (Exception e) {
         LOG.error("Error updating app: " + appId, e);
         store.notifyStoreOperationFailed(e);
@@ -205,8 +207,9 @@ public abstract class RMStateStore extends AbstractService {
         }
         store.storeApplicationAttemptStateInternal(attemptState.getAttemptId(),
             attemptStateData);
-        store.notifyDoneStoringApplicationAttempt(attemptState.getAttemptId(),
+        store.notifyApplicationAttempt(new RMAppAttemptEvent
-            null);
+               (attemptState.getAttemptId(),
+               RMAppAttemptEventType.ATTEMPT_NEW_SAVED));
       } catch (Exception e) {
         LOG.error("Error storing appAttempt: " + attemptState.getAttemptId(), e);
         store.notifyStoreOperationFailed(e);
@@ -233,8 +236,9 @@ public abstract class RMStateStore extends AbstractService {
         }
         store.updateApplicationAttemptStateInternal(attemptState.getAttemptId(),
             attemptStateData);
-        store.notifyDoneUpdatingApplicationAttempt(attemptState.getAttemptId(),
+        store.notifyApplicationAttempt(new RMAppAttemptEvent
-            null);
+               (attemptState.getAttemptId(),
+               RMAppAttemptEventType.ATTEMPT_UPDATE_SAVED));
       } catch (Exception e) {
         LOG.error("Error updating appAttempt: " + attemptState.getAttemptId(), e);
         store.notifyStoreOperationFailed(e);
@@ -804,42 +808,23 @@ public abstract class RMStateStore extends AbstractService {
  
   @SuppressWarnings("unchecked")
   /**
-   * In (@link handleStoreEvent}, this method is called to notify the
+   * This method is called to notify the application that
-   * application that new application is stored in state store
+   * new application is stored or updated in state store
-   * @param appId id of the application that has been saved
+   * @param event App event containing the app id and event type
-   * @param storedException the exception that is thrown when storing the
-   * application
    */
-  private void notifyDoneStoringApplication(ApplicationId appId,
+  private void notifyApplication(RMAppEvent event) {
-                                                  Exception storedException) {
+    rmDispatcher.getEventHandler().handle(event);
-    rmDispatcher.getEventHandler().handle(
-        new RMAppNewSavedEvent(appId, storedException));
-  }
-
-  @SuppressWarnings("unchecked")
-  private void notifyDoneUpdatingApplication(ApplicationId appId,
-      Exception storedException) {
-    rmDispatcher.getEventHandler().handle(
-      new RMAppUpdateSavedEvent(appId, storedException));
   }
   
   @SuppressWarnings("unchecked")
   /**
-   * In (@link handleStoreEvent}, this method is called to notify the
+   * This method is called to notify the application attempt
-   * application attempt that new attempt is stored in state store
+   * that new attempt is stored or updated in state store
-   * @param appAttempt attempt that has been saved
+   * @param event App attempt event containing the app attempt
+   * id and event type
    */
-  private void notifyDoneStoringApplicationAttempt(ApplicationAttemptId attemptId,
+  private void notifyApplicationAttempt(RMAppAttemptEvent event) {
-                                                  Exception storedException) {
+    rmDispatcher.getEventHandler().handle(event);
-    rmDispatcher.getEventHandler().handle(
-        new RMAppAttemptNewSavedEvent(attemptId, storedException));
-  }
-
-  @SuppressWarnings("unchecked")
-  private void notifyDoneUpdatingApplicationAttempt(ApplicationAttemptId attemptId,
-      Exception updatedException) {
-    rmDispatcher.getEventHandler().handle(
-      new RMAppAttemptUpdateSavedEvent(attemptId, updatedException));
   }
   
   /**

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/rmapp/RMAppImpl.java

@@ -820,17 +820,6 @@ public class RMAppImpl implements RMApp, Recoverable {
       RMAppTransition {
     @Override
     public void transition(RMAppImpl app, RMAppEvent event) {
-      if (event instanceof RMAppNewSavedEvent) {
-        RMAppNewSavedEvent storeEvent = (RMAppNewSavedEvent) event;
-        // For HA this exception needs to be handled by giving up
-        // master status if we got fenced
-        if (((RMAppNewSavedEvent) event).getStoredException() != null) {
-          LOG.error(
-            "Failed to store application: " + storeEvent.getApplicationId(),
-            storeEvent.getStoredException());
-          ExitUtil.terminate(1, storeEvent.getStoredException());
-        }
-      }
       app.handler.handle(new AppAddedSchedulerEvent(app.applicationId,
         app.submissionContext.getQueue(), app.user));
     }
@@ -848,13 +837,6 @@ public class RMAppImpl implements RMApp, Recoverable {
 
     @Override
     public RMAppState transition(RMAppImpl app, RMAppEvent event) {
-      RMAppUpdateSavedEvent storeEvent = (RMAppUpdateSavedEvent) event;
-      if (storeEvent.getUpdatedException() != null) {
-        LOG.error("Failed to update the final state of application"
-              + storeEvent.getApplicationId(), storeEvent.getUpdatedException());
-        ExitUtil.terminate(1, storeEvent.getUpdatedException());
-      }
-
       if (app.transitionTodo instanceof SingleArcTransition) {
         ((SingleArcTransition) app.transitionTodo).transition(app,
           app.eventCausingFinalSaving);

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/rmapp/RMAppNewSavedEvent.java

@@ -1,36 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.hadoop.yarn.server.resourcemanager.rmapp;
-
-import org.apache.hadoop.yarn.api.records.ApplicationId;
-
-public class RMAppNewSavedEvent extends RMAppEvent {
-
-  private final Exception storedException;
-
-  public RMAppNewSavedEvent(ApplicationId appId, Exception storedException) {
-    super(appId, RMAppEventType.APP_NEW_SAVED);
-    this.storedException = storedException;
-  }
-
-  public Exception getStoredException() {
-    return storedException;
-  }
-
-}

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/rmapp/RMAppUpdateSavedEvent.java

@@ -1,36 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.hadoop.yarn.server.resourcemanager.rmapp;
-
-import org.apache.hadoop.yarn.api.records.ApplicationId;
-
-public class RMAppUpdateSavedEvent extends RMAppEvent {
-
-  private final Exception updatedException;
-
-  public RMAppUpdateSavedEvent(ApplicationId appId, Exception updatedException) {
-    super(appId, RMAppEventType.APP_UPDATE_SAVED);
-    this.updatedException = updatedException;
-  }
-
-  public Exception getUpdatedException() {
-    return updatedException;
-  }
-
-}

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/rmapp/attempt/RMAppAttemptImpl.java

@@ -80,11 +80,9 @@ import org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMAppImpl;
 import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.event.RMAppAttemptContainerAllocatedEvent;
 import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.event.RMAppAttemptContainerFinishedEvent;
 import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.event.RMAppAttemptLaunchFailedEvent;
-import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.event.RMAppAttemptNewSavedEvent;
 import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.event.RMAppAttemptRegistrationEvent;
 import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.event.RMAppAttemptStatusupdateEvent;
 import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.event.RMAppAttemptUnregistrationEvent;
-import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.event.RMAppAttemptUpdateSavedEvent;
 import org.apache.hadoop.yarn.server.resourcemanager.rmcontainer.RMContainerImpl;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.Allocation;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.YarnScheduler;
@@ -905,8 +903,6 @@ public class RMAppAttemptImpl implements RMAppAttempt, Recoverable {
     @Override
     public void transition(RMAppAttemptImpl appAttempt,
                                                     RMAppAttemptEvent event) {
-      appAttempt.checkAttemptStoreError(event);
-
       appAttempt.launchAttempt();
     }
   }
@@ -1058,14 +1054,6 @@ public class RMAppAttemptImpl implements RMAppAttempt, Recoverable {
     @Override
     public RMAppAttemptState transition(RMAppAttemptImpl appAttempt,
         RMAppAttemptEvent event) {
-      RMAppAttemptUpdateSavedEvent storeEvent = (RMAppAttemptUpdateSavedEvent) event;
-      if (storeEvent.getUpdatedException() != null) {
-        LOG.error("Failed to update the final state of application attempt: "
-            + storeEvent.getApplicationAttemptId(),
-          storeEvent.getUpdatedException());
-        ExitUtil.terminate(1, storeEvent.getUpdatedException());
-      }
-
       RMAppAttemptEvent causeEvent = appAttempt.eventCausingFinalSaving;
 
       if (appAttempt.transitionTodo instanceof SingleArcTransition) {
@@ -1195,8 +1183,6 @@ public class RMAppAttemptImpl implements RMAppAttempt, Recoverable {
     @Override
     public void transition(RMAppAttemptImpl appAttempt,
                             RMAppAttemptEvent event) {
-      appAttempt.checkAttemptStoreError(event);
-
       // create AMRMToken
       appAttempt.amrmToken =
           appAttempt.rmContext.getAMRMTokenSecretManager().createAndGetAMRMToken(
@@ -1689,18 +1675,6 @@ public class RMAppAttemptImpl implements RMAppAttempt, Recoverable {
     rmContext.getAMLivelinessMonitor().register(getAppAttemptId());
   }
   
-  private void checkAttemptStoreError(RMAppAttemptEvent event) {
-    RMAppAttemptNewSavedEvent storeEvent = (RMAppAttemptNewSavedEvent) event;
-    if(storeEvent.getStoredException() != null)
-    {
-      // This needs to be handled for HA and give up master status if we got
-      // fenced
-      LOG.error("Failed to store attempt: " + getAppAttemptId(),
-                storeEvent.getStoredException());
-      ExitUtil.terminate(1, storeEvent.getStoredException());
-    }
-  }
-
   private void storeAttempt() {
     // store attempt data in a non-blocking manner to prevent dispatcher
     // thread starvation and wait for state to be saved

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/rmapp/attempt/event/RMAppAttemptNewSavedEvent.java

@@ -1,39 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.event;
-
-import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
-import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptEvent;
-import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptEventType;
-
-public class RMAppAttemptNewSavedEvent extends RMAppAttemptEvent {
-
-  final Exception storedException;
-  
-  public RMAppAttemptNewSavedEvent(ApplicationAttemptId appAttemptId,
-                                 Exception storedException) {
-    super(appAttemptId, RMAppAttemptEventType.ATTEMPT_NEW_SAVED);
-    this.storedException = storedException;
-  }
-  
-  public Exception getStoredException() {
-    return storedException;
-  }
-
-}

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/rmapp/attempt/event/RMAppAttemptUpdateSavedEvent.java

@@ -1,38 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.event;
-
-import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
-import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptEvent;
-import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptEventType;
-
-public class RMAppAttemptUpdateSavedEvent extends RMAppAttemptEvent {
-
-  final Exception updatedException;
-
-  public RMAppAttemptUpdateSavedEvent(ApplicationAttemptId appAttemptId,
-      Exception updatedException) {
-    super(appAttemptId, RMAppAttemptEventType.ATTEMPT_UPDATE_SAVED);
-    this.updatedException = updatedException;
-  }
-
-  public Exception getUpdatedException() {
-    return updatedException;
-  }
-}

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

@@ -65,8 +65,8 @@ import org.apache.hadoop.yarn.server.resourcemanager.recovery.records.AMRMTokenS
 import org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMApp;
 import org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMAppState;
 import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttempt;
+import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptEvent;
 import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptState;
-import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.event.RMAppAttemptNewSavedEvent;
 import org.apache.hadoop.yarn.server.resourcemanager.security.AMRMTokenSecretManager;
 import org.apache.hadoop.yarn.server.resourcemanager.security.ClientToAMTokenSecretManagerInRM;
 import org.apache.hadoop.yarn.server.security.MasterKeyData;
@@ -77,10 +77,9 @@ public class RMStateStoreTestBase extends ClientBaseWithFixes{
   public static final Log LOG = LogFactory.getLog(RMStateStoreTestBase.class);
 
   static class TestDispatcher implements
-      Dispatcher, EventHandler<RMAppAttemptNewSavedEvent> {
+      Dispatcher, EventHandler<RMAppAttemptEvent> {
 
     ApplicationAttemptId attemptId;
-    Exception storedException;
 
     boolean notified = false;
 
@@ -91,9 +90,8 @@ public class RMStateStoreTestBase extends ClientBaseWithFixes{
     }
 
     @Override
-    public void handle(RMAppAttemptNewSavedEvent event) {
+    public void handle(RMAppAttemptEvent event) {
       assertEquals(attemptId, event.getApplicationAttemptId());
-      assertEquals(storedException, event.getStoredException());
       notified = true;
       synchronized (this) {
         notifyAll();
@@ -163,7 +161,6 @@ public class RMStateStoreTestBase extends ClientBaseWithFixes{
     when(mockAttempt.getClientTokenMasterKey())
         .thenReturn(clientTokenMasterKey);
     dispatcher.attemptId = attemptId;
-    dispatcher.storedException = null;
     store.storeNewApplicationAttempt(mockAttempt);
     waitNotify(dispatcher);
     return container.getId();

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

@@ -60,7 +60,6 @@ import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.AMLivelinessM
 import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttempt;
 import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptEvent;
 import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptEventType;
-import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.event.RMAppAttemptUpdateSavedEvent;
 import org.apache.hadoop.yarn.server.resourcemanager.rmcontainer.ContainerAllocationExpirer;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.YarnScheduler;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.event.AppRemovedSchedulerEvent;
@@ -328,15 +327,15 @@ public class TestRMAppTransitions {
 
   private void sendAppUpdateSavedEvent(RMApp application) {
     RMAppEvent event =
-        new RMAppUpdateSavedEvent(application.getApplicationId(), null);
+        new RMAppEvent(application.getApplicationId(), RMAppEventType.APP_UPDATE_SAVED);
     application.handle(event);
     rmDispatcher.await();
   }
 
   private void sendAttemptUpdateSavedEvent(RMApp application) {
     application.getCurrentAppAttempt().handle(
-      new RMAppAttemptUpdateSavedEvent(application.getCurrentAppAttempt()
+        new RMAppAttemptEvent(application.getCurrentAppAttempt().getAppAttemptId(),
-        .getAppAttemptId(), null));
+            RMAppAttemptEventType.ATTEMPT_UPDATE_SAVED));
   }
 
   protected RMApp testCreateAppNewSaving(
@@ -357,7 +356,7 @@ public class TestRMAppTransitions {
   RMApp application = testCreateAppNewSaving(submissionContext);
     // NEW_SAVING => SUBMITTED event RMAppEventType.APP_SAVED
     RMAppEvent event =
-        new RMAppNewSavedEvent(application.getApplicationId(), null);
+        new RMAppEvent(application.getApplicationId(), RMAppEventType.APP_NEW_SAVED);
     application.handle(event);
     assertStartTimeSet(application);
     assertAppState(RMAppState.SUBMITTED, application);
@@ -422,7 +421,7 @@ public class TestRMAppTransitions {
     RMApp application = testCreateAppFinalSaving(submissionContext);
     // FINAL_SAVING => FINISHING event RMAppEventType.APP_UPDATED
     RMAppEvent appUpdated =
-        new RMAppUpdateSavedEvent(application.getApplicationId(), null);
+        new RMAppEvent(application.getApplicationId(), RMAppEventType.APP_UPDATE_SAVED);
     application.handle(appUpdated);
     assertAppState(RMAppState.FINISHING, application);
     assertTimesAtFinish(application);
@@ -763,7 +762,7 @@ public class TestRMAppTransitions {
     application.handle(event);
     assertAppState(RMAppState.FINAL_SAVING, application);
     RMAppEvent appUpdated =
-        new RMAppUpdateSavedEvent(application.getApplicationId(), null);
+        new RMAppEvent(application.getApplicationId(), RMAppEventType.APP_UPDATE_SAVED);
     application.handle(appUpdated);
     assertAppState(RMAppState.FINISHED, application);
 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/rmapp/attempt/TestRMAppAttemptTransitions.java

@@ -81,10 +81,8 @@ import org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMAppRejectedEvent;
 import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.event.RMAppAttemptContainerAllocatedEvent;
 import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.event.RMAppAttemptContainerFinishedEvent;
 import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.event.RMAppAttemptLaunchFailedEvent;
-import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.event.RMAppAttemptNewSavedEvent;
 import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.event.RMAppAttemptRegistrationEvent;
 import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.event.RMAppAttemptUnregistrationEvent;
-import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.event.RMAppAttemptUpdateSavedEvent;
 import org.apache.hadoop.yarn.server.resourcemanager.rmcontainer.ContainerAllocationExpirer;
 import org.apache.hadoop.yarn.server.resourcemanager.rmcontainer.RMContainer;
 import org.apache.hadoop.yarn.server.resourcemanager.rmcontainer.RMContainerImpl;
@@ -577,8 +575,8 @@ public class TestRMAppAttemptTransitions {
       assertEquals(RMAppAttemptState.LAUNCHED_UNMANAGED_SAVING, 
           applicationAttempt.getAppAttemptState());
       applicationAttempt.handle(
-          new RMAppAttemptNewSavedEvent(
+        new RMAppAttemptEvent(applicationAttempt.getAppAttemptId(),
-              applicationAttempt.getAppAttemptId(), null));
+            RMAppAttemptEventType.ATTEMPT_NEW_SAVED));
     }
     
     testAppAttemptScheduledState();
@@ -616,8 +614,8 @@ public class TestRMAppAttemptTransitions {
     assertEquals(RMAppAttemptState.ALLOCATED_SAVING, 
         applicationAttempt.getAppAttemptState());
     applicationAttempt.handle(
-        new RMAppAttemptNewSavedEvent(
+        new RMAppAttemptEvent(applicationAttempt.getAppAttemptId(),
-            applicationAttempt.getAppAttemptId(), null));
+            RMAppAttemptEventType.ATTEMPT_NEW_SAVED));
     
     testAppAttemptAllocatedState(container);
     
@@ -696,8 +694,8 @@ public class TestRMAppAttemptTransitions {
     assertEquals(RMAppAttemptState.FINAL_SAVING,
       applicationAttempt.getAppAttemptState());
     applicationAttempt.handle(
-      new RMAppAttemptUpdateSavedEvent(
+      new RMAppAttemptEvent(applicationAttempt.getAppAttemptId(), 
-          applicationAttempt.getAppAttemptId(), null));
+          RMAppAttemptEventType.ATTEMPT_UPDATE_SAVED));
   }
 
   @Test