YARN-6683. Invalid event: COLLECTOR_UPDATE at KILLED. Contributed by Rohith Sharma K S

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

@@ -69,7 +69,6 @@
 import org.apache.hadoop.yarn.server.resourcemanager.nodelabels.NodeLabelsUtils;
 import org.apache.hadoop.yarn.server.resourcemanager.resource.DynamicResourceConfiguration;
 import org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMApp;
-import org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMAppCollectorUpdateEvent;
 import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttempt;
 import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.event.RMAppAttemptContainerFinishedEvent;
 import org.apache.hadoop.yarn.server.resourcemanager.rmnode.RMNode;
@@ -651,10 +650,7 @@ private void updateAppCollectorsMap(NodeHeartbeatRequest request) {
             String previousCollectorAddr = rmApp.getCollectorAddr();
             if (previousCollectorAddr == null
                 || !previousCollectorAddr.equals(collectorAddr)) {
-              // sending collector update event.
+              rmApp.setCollectorAddr(collectorAddr);
-              RMAppCollectorUpdateEvent event =
-                  new RMAppCollectorUpdateEvent(appId, collectorAddr);
-              rmContext.getDispatcher().getEventHandler().handle(event);
             }
           }
         }

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

@@ -1,40 +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;
-
-/**
- * Event used for updating collector address in RMApp on node heartbeat.
- */
-public class RMAppCollectorUpdateEvent extends RMAppEvent {
-
-  private final String appCollectorAddr;
-
-  public RMAppCollectorUpdateEvent(ApplicationId appId,
-      String appCollectorAddr) {
-    super(appId, RMAppEventType.COLLECTOR_UPDATE);
-    this.appCollectorAddr = appCollectorAddr;
-  }
-
-  public String getAppCollectorAddr(){
-    return this.appCollectorAddr;
-  }
-
-}

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

@@ -165,7 +165,7 @@ public class RMAppImpl implements RMApp, Recoverable {
   private long storedFinishTime = 0;
   private int firstAttemptIdInStateStore = 1;
   private int nextAttemptId = 1;
-  private String collectorAddr;
+  private volatile String collectorAddr;
   // This field isn't protected by readlock now.
   private volatile RMAppAttempt currentAttempt;
   private String queue;
@@ -217,8 +217,6 @@ public class RMAppImpl implements RMApp, Recoverable {
      // Transitions from NEW state
     .addTransition(RMAppState.NEW, RMAppState.NEW,
         RMAppEventType.NODE_UPDATE, new RMAppNodeUpdateTransition())
-    .addTransition(RMAppState.NEW, RMAppState.NEW,
-        RMAppEventType.COLLECTOR_UPDATE, new RMAppCollectorUpdateTransition())
     .addTransition(RMAppState.NEW, RMAppState.NEW_SAVING,
         RMAppEventType.START, new RMAppNewlySavingTransition())
     .addTransition(RMAppState.NEW, EnumSet.of(RMAppState.SUBMITTED,
@@ -235,8 +233,6 @@ RMAppEventType.RECOVER, new RMAppRecoveredTransition())
     // Transitions from NEW_SAVING state
     .addTransition(RMAppState.NEW_SAVING, RMAppState.NEW_SAVING,
         RMAppEventType.NODE_UPDATE, new RMAppNodeUpdateTransition())
-    .addTransition(RMAppState.NEW_SAVING, RMAppState.NEW_SAVING,
-        RMAppEventType.COLLECTOR_UPDATE, new RMAppCollectorUpdateTransition())
     .addTransition(RMAppState.NEW_SAVING, RMAppState.SUBMITTED,
         RMAppEventType.APP_NEW_SAVED, new AddApplicationToSchedulerTransition())
     .addTransition(RMAppState.NEW_SAVING, RMAppState.FINAL_SAVING,
@@ -251,8 +247,6 @@ RMAppEventType.APP_NEW_SAVED, new AddApplicationToSchedulerTransition())
      // Transitions from SUBMITTED state
     .addTransition(RMAppState.SUBMITTED, RMAppState.SUBMITTED,
         RMAppEventType.NODE_UPDATE, new RMAppNodeUpdateTransition())
-    .addTransition(RMAppState.SUBMITTED, RMAppState.SUBMITTED,
-        RMAppEventType.COLLECTOR_UPDATE, new RMAppCollectorUpdateTransition())
     .addTransition(RMAppState.SUBMITTED, RMAppState.FINAL_SAVING,
         RMAppEventType.APP_REJECTED,
         new FinalSavingTransition(
@@ -267,8 +261,6 @@ RMAppEventType.APP_ACCEPTED, new StartAppAttemptTransition())
      // Transitions from ACCEPTED state
     .addTransition(RMAppState.ACCEPTED, RMAppState.ACCEPTED,
         RMAppEventType.NODE_UPDATE, new RMAppNodeUpdateTransition())
-    .addTransition(RMAppState.ACCEPTED, RMAppState.ACCEPTED,
-        RMAppEventType.COLLECTOR_UPDATE, new RMAppCollectorUpdateTransition())
     .addTransition(RMAppState.ACCEPTED, RMAppState.RUNNING,
         RMAppEventType.ATTEMPT_REGISTERED, new RMAppStateUpdateTransition(
             YarnApplicationState.RUNNING))
@@ -294,8 +286,6 @@ RMAppEventType.KILL, new KillAttemptTransition())
      // Transitions from RUNNING state
     .addTransition(RMAppState.RUNNING, RMAppState.RUNNING,
         RMAppEventType.NODE_UPDATE, new RMAppNodeUpdateTransition())
-    .addTransition(RMAppState.RUNNING, RMAppState.RUNNING,
-        RMAppEventType.COLLECTOR_UPDATE, new RMAppCollectorUpdateTransition())
     .addTransition(RMAppState.RUNNING, RMAppState.FINAL_SAVING,
         RMAppEventType.ATTEMPT_UNREGISTERED,
         new FinalSavingTransition(
@@ -325,8 +315,6 @@ RMAppEventType.KILL, new KillAttemptTransition())
     .addTransition(RMAppState.FINAL_SAVING, RMAppState.FINAL_SAVING, 
         RMAppEventType.APP_RUNNING_ON_NODE,
         new AppRunningOnNodeTransition())
-    .addTransition(RMAppState.FINAL_SAVING, RMAppState.FINAL_SAVING,
-        RMAppEventType.COLLECTOR_UPDATE, new RMAppCollectorUpdateTransition())
     // ignorable transitions
     .addTransition(RMAppState.FINAL_SAVING, RMAppState.FINAL_SAVING,
         EnumSet.of(RMAppEventType.NODE_UPDATE, RMAppEventType.KILL,
@@ -338,8 +326,6 @@ RMAppEventType.COLLECTOR_UPDATE, new RMAppCollectorUpdateTransition())
     .addTransition(RMAppState.FINISHING, RMAppState.FINISHING, 
         RMAppEventType.APP_RUNNING_ON_NODE,
         new AppRunningOnNodeTransition())
-    .addTransition(RMAppState.FINISHING, RMAppState.FINISHING,
-        RMAppEventType.COLLECTOR_UPDATE, new RMAppCollectorUpdateTransition())
     // ignorable transitions
     .addTransition(RMAppState.FINISHING, RMAppState.FINISHING,
       EnumSet.of(RMAppEventType.NODE_UPDATE,
@@ -351,8 +337,6 @@ RMAppEventType.COLLECTOR_UPDATE, new RMAppCollectorUpdateTransition())
     .addTransition(RMAppState.KILLING, RMAppState.KILLING, 
         RMAppEventType.APP_RUNNING_ON_NODE,
         new AppRunningOnNodeTransition())
-    .addTransition(RMAppState.KILLING, RMAppState.KILLING,
-        RMAppEventType.COLLECTOR_UPDATE, new RMAppCollectorUpdateTransition())
     .addTransition(RMAppState.KILLING, RMAppState.FINAL_SAVING,
         RMAppEventType.ATTEMPT_KILLED,
         new FinalSavingTransition(
@@ -1020,24 +1004,6 @@ public void transition(RMAppImpl app, RMAppEvent event) {
     };
   }
 
-  private static final class RMAppCollectorUpdateTransition
-      extends RMAppTransition {
-
-    public void transition(RMAppImpl app, RMAppEvent event) {
-      if (YarnConfiguration.timelineServiceV2Enabled(app.conf)) {
-        LOG.info("Updating collector info for app: " + app.getApplicationId());
-
-        RMAppCollectorUpdateEvent appCollectorUpdateEvent =
-            (RMAppCollectorUpdateEvent) event;
-        // Update collector address
-        app.setCollectorAddr(appCollectorUpdateEvent.getAppCollectorAddr());
-
-        // TODO persistent to RMStateStore for recover
-        // Save to RMStateStore
-      }
-    };
-  }
-
   private static final class RMAppNodeUpdateTransition extends RMAppTransition {
     public void transition(RMAppImpl app, RMAppEvent event) {
       RMAppNodeUpdateEvent nodeUpdateEvent = (RMAppNodeUpdateEvent) event;