YARN-8349. Remove YARN registry entries when a service is killed by the RM. (Billie Rinaldi via wangda)

Change-Id: Ia58db3637789a8921482f564aa9bdf99c45cc36c
2018-06-01 14:07:23 -07:00 · 2018-06-01 14:07:23 -07:00 · ff583d3fa3
parent 8956e5b8db
commit ff583d3fa3
11 changed files with 358 additions and 129 deletions
--- a/hadoop-project/pom.xml
+++ b/hadoop-project/pom.xml
@ -450,6 +450,13 @@
        <version>${hadoop.version}</version>
      </dependency>

+      <dependency>
+        <groupId>org.apache.hadoop</groupId>
+        <artifactId>hadoop-yarn-services-core</artifactId>
+        <version>${hadoop.version}</version>
+        <type>test-jar</type>
+      </dependency>
+
      <dependency>
        <groupId>org.apache.hadoop</groupId>
         <artifactId>hadoop-mapreduce-client-jobclient</artifactId>
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services/hadoop-yarn-services-api/pom.xml
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services/hadoop-yarn-services-api/pom.xml
@ -139,6 +139,22 @@
      <artifactId>junit</artifactId>
      <scope>test</scope>
    </dependency>
+    <dependency>
+      <groupId>org.apache.hadoop</groupId>
+      <artifactId>hadoop-yarn-services-core</artifactId>
+      <type>test-jar</type>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.apache.hadoop</groupId>
+      <artifactId>hadoop-minicluster</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.apache.curator</groupId>
+      <artifactId>curator-test</artifactId>
+      <scope>test</scope>
+    </dependency>

  </dependencies>
 </project>
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services/hadoop-yarn-services-api/src/main/java/org/apache/hadoop/yarn/service/client/ApiServiceClient.java
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services/hadoop-yarn-services-api/src/main/java/org/apache/hadoop/yarn/service/client/ApiServiceClient.java
@ -588,6 +588,17 @@ public class ApiServiceClient extends AppAdminClient {
    return result;
  }

+  @Override
+  public int actionCleanUp(String appName, String userName) throws
+      IOException, YarnException {
+    ServiceClient sc = new ServiceClient();
+    sc.init(getConfig());
+    sc.start();
+    int result = sc.actionCleanUp(appName, userName);
+    sc.close();
+    return result;
+  }
+
  private static final JsonSerDeser<Container[]> CONTAINER_JSON_SERDE =
      new JsonSerDeser<>(Container[].class,
          PropertyNamingStrategy.CAMEL_CASE_TO_LOWER_CASE_WITH_UNDERSCORES);
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services/hadoop-yarn-services-api/src/test/java/org/apache/hadoop/yarn/service/TestCleanupAfterKill.java
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services/hadoop-yarn-services-api/src/test/java/org/apache/hadoop/yarn/service/TestCleanupAfterKill.java
@ -0,0 +1,94 @@
+/**
+ * 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
+ * <p>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * 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.service;
+
+import org.apache.commons.io.FileUtils;
+import org.apache.hadoop.registry.client.binding.RegistryUtils;
+import org.apache.hadoop.test.GenericTestUtils;
+import org.apache.hadoop.yarn.api.records.ApplicationId;
+import org.apache.hadoop.yarn.api.records.ApplicationReport;
+import org.apache.hadoop.yarn.api.records.YarnApplicationState;
+import org.apache.hadoop.yarn.exceptions.YarnException;
+import org.apache.hadoop.yarn.service.api.records.Service;
+import org.apache.hadoop.yarn.service.client.ServiceClient;
+import org.apache.hadoop.yarn.service.conf.YarnServiceConstants;
+import org.junit.After;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.TemporaryFolder;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.File;
+import java.io.IOException;
+
+/**
+ * Minicluster test that verifies registry cleanup when app lifetime is
+ * exceeded.
+ */
+public class TestCleanupAfterKill extends ServiceTestUtils {
+  private static final Logger LOG =
+      LoggerFactory.getLogger(TestCleanupAfterKill.class);
+
+  @Rule
+  public TemporaryFolder tmpFolder = new TemporaryFolder();
+
+  @Before
+  public void setup() throws Exception {
+    File tmpYarnDir = new File("target", "tmp");
+    FileUtils.deleteQuietly(tmpYarnDir);
+  }
+
+  @After
+  public void tearDown() throws IOException {
+    shutdown();
+  }
+
+  @Test(timeout = 200000)
+  public void testRegistryCleanedOnLifetimeExceeded() throws Exception {
+    setupInternal(NUM_NMS);
+    ServiceClient client = createClient(getConf());
+    Service exampleApp = createExampleApplication();
+    exampleApp.setLifetime(30L);
+    client.actionCreate(exampleApp);
+    waitForServiceToBeStable(client, exampleApp);
+    String serviceZKPath = RegistryUtils.servicePath(RegistryUtils
+        .currentUser(), YarnServiceConstants.APP_TYPE, exampleApp.getName());
+    Assert.assertTrue("Registry ZK service path doesn't exist",
+        getCuratorService().zkPathExists(serviceZKPath));
+
+    // wait for app to be killed by RM
+    ApplicationId exampleAppId = ApplicationId.fromString(exampleApp.getId());
+    GenericTestUtils.waitFor(() -> {
+      try {
+        ApplicationReport ar = client.getYarnClient()
+            .getApplicationReport(exampleAppId);
+        return ar.getYarnApplicationState() == YarnApplicationState.KILLED;
+      } catch (YarnException | IOException e) {
+        throw new RuntimeException("while waiting", e);
+      }
+    }, 2000, 200000);
+    Assert.assertFalse("Registry ZK service path still exists after killed",
+        getCuratorService().zkPathExists(serviceZKPath));
+
+    LOG.info("Destroy the service");
+    Assert.assertEquals(0, client.actionDestroy(exampleApp.getName()));
+  }
+}
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services/hadoop-yarn-services-api/src/test/resources/yarn-site.xml
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services/hadoop-yarn-services-api/src/test/resources/yarn-site.xml
@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
+<!--
+  Licensed 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. See accompanying LICENSE file.
+-->
+
+<configuration>
+  <!-- Dummy (invalid) config file to be overwritten by ServiceTestUtils with MiniCluster configuration. -->
+</configuration>
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services/hadoop-yarn-services-core/src/main/java/org/apache/hadoop/yarn/service/client/ServiceClient.java
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services/hadoop-yarn-services-core/src/main/java/org/apache/hadoop/yarn/service/client/ServiceClient.java
@ -308,6 +308,16 @@ public class ServiceClient extends AppAdminClient implements SliderExitCodes,
    return actionUpgrade(persistedService, containersToUpgrade);
  }

+  @Override
+  public int actionCleanUp(String appName, String userName) throws
+      IOException, YarnException {
+    if (cleanUpRegistry(appName, userName)) {
+      return EXIT_SUCCESS;
+    } else {
+      return EXIT_FALSE;
+    }
+  }
+
  public int actionUpgrade(Service service, List<Container> compInstances)
      throws IOException, YarnException {
    ApplicationReport appReport =
@ -639,9 +649,23 @@ public class ServiceClient extends AppAdminClient implements SliderExitCodes,
    }
  }

+  private boolean cleanUpRegistry(String serviceName, String user) throws
+      SliderException {
+    String encodedName = RegistryUtils.registryUser(user);
+
+    String registryPath = RegistryUtils.servicePath(encodedName,
+        YarnServiceConstants.APP_TYPE, serviceName);
+    return cleanUpRegistryPath(registryPath, serviceName);
+  }
+
  private boolean cleanUpRegistry(String serviceName) throws SliderException {
    String registryPath =
        ServiceRegistryUtils.registryPathForInstance(serviceName);
+    return cleanUpRegistryPath(registryPath, serviceName);
+  }
+
+  private boolean cleanUpRegistryPath(String registryPath, String
+      serviceName) throws SliderException {
    try {
      if (getRegistryClient().exists(registryPath)) {
        getRegistryClient().delete(registryPath, true);
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services/hadoop-yarn-services-core/src/test/java/org/apache/hadoop/yarn/service/ServiceTestUtils.java
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services/hadoop-yarn-services-core/src/test/java/org/apache/hadoop/yarn/service/ServiceTestUtils.java
@ -19,6 +19,8 @@
 package org.apache.hadoop.yarn.service;

 import com.google.common.base.Throwables;
+import com.google.common.collect.HashMultimap;
+import com.google.common.collect.Multimap;
 import org.apache.commons.io.FileUtils;
 import org.apache.curator.test.TestingCluster;
 import org.apache.hadoop.conf.Configuration;
@ -29,13 +31,17 @@ import org.apache.hadoop.hdfs.MiniDFSCluster;
 import org.apache.hadoop.http.HttpServer2;
 import org.apache.hadoop.registry.client.impl.zk.CuratorService;
 import org.apache.hadoop.service.ServiceOperations;
+import org.apache.hadoop.test.GenericTestUtils;
 import org.apache.hadoop.yarn.api.records.LocalResource;
 import org.apache.hadoop.yarn.client.api.YarnClient;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
 import org.apache.hadoop.yarn.server.MiniYARNCluster;
 import org.apache.hadoop.yarn.service.api.records.Component;
+import org.apache.hadoop.yarn.service.api.records.Container;
+import org.apache.hadoop.yarn.service.api.records.ContainerState;
 import org.apache.hadoop.yarn.service.api.records.Resource;
 import org.apache.hadoop.yarn.service.api.records.Service;
+import org.apache.hadoop.yarn.service.api.records.ServiceState;
 import org.apache.hadoop.yarn.service.client.ServiceClient;
 import org.apache.hadoop.yarn.service.conf.YarnServiceConf;
 import org.apache.hadoop.yarn.service.exceptions.SliderException;
@ -60,6 +66,7 @@ import java.nio.file.Paths;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
+import java.util.concurrent.TimeoutException;

 import static org.apache.hadoop.registry.client.api.RegistryConstants.KEY_REGISTRY_ZK_QUORUM;
 import static org.apache.hadoop.yarn.conf.YarnConfiguration.DEBUG_NM_DELETE_DELAY_SEC;
@ -418,4 +425,132 @@ public class ServiceTestUtils {
      return serviceBasePath;
    }
  }
+
+  /**
+   * Wait until all the containers for all components become ready state.
+   *
+   * @param client
+   * @param exampleApp
+   * @return all ready containers of a service.
+   * @throws TimeoutException
+   * @throws InterruptedException
+   */
+  protected Multimap<String, String> waitForAllCompToBeReady(ServiceClient
+      client, Service exampleApp) throws TimeoutException,
+      InterruptedException {
+    int expectedTotalContainers = countTotalContainers(exampleApp);
+
+    Multimap<String, String> allContainers = HashMultimap.create();
+
+    GenericTestUtils.waitFor(() -> {
+      try {
+        Service retrievedApp = client.getStatus(exampleApp.getName());
+        int totalReadyContainers = 0;
+        allContainers.clear();
+        LOG.info("Num Components " + retrievedApp.getComponents().size());
+        for (Component component : retrievedApp.getComponents()) {
+          LOG.info("looking for  " + component.getName());
+          LOG.info(component.toString());
+          if (component.getContainers() != null) {
+            if (component.getContainers().size() == exampleApp
+                .getComponent(component.getName()).getNumberOfContainers()) {
+              for (Container container : component.getContainers()) {
+                LOG.info(
+                    "Container state " + container.getState() + ", component "
+                        + component.getName());
+                if (container.getState() == ContainerState.READY) {
+                  totalReadyContainers++;
+                  allContainers.put(component.getName(), container.getId());
+                  LOG.info("Found 1 ready container " + container.getId());
+                }
+              }
+            } else {
+              LOG.info(component.getName() + " Expected number of containers "
+                  + exampleApp.getComponent(component.getName())
+                  .getNumberOfContainers() + ", current = " + component
+                  .getContainers());
+            }
+          }
+        }
+        LOG.info("Exit loop, totalReadyContainers= " + totalReadyContainers
+            + " expected = " + expectedTotalContainers);
+        return totalReadyContainers == expectedTotalContainers;
+      } catch (Exception e) {
+        e.printStackTrace();
+        return false;
+      }
+    }, 2000, 200000);
+    return allContainers;
+  }
+
+  /**
+   * Wait until service state becomes stable. A service is stable when all
+   * requested containers of all components are running and in ready state.
+   *
+   * @param client
+   * @param exampleApp
+   * @throws TimeoutException
+   * @throws InterruptedException
+   */
+  protected void waitForServiceToBeStable(ServiceClient client,
+      Service exampleApp) throws TimeoutException, InterruptedException {
+    waitForServiceToBeStable(client, exampleApp, 200000);
+  }
+
+  protected void waitForServiceToBeStable(ServiceClient client,
+      Service exampleApp, int waitForMillis)
+      throws TimeoutException, InterruptedException {
+    waitForServiceToBeInState(client, exampleApp, ServiceState.STABLE,
+        waitForMillis);
+  }
+
+  /**
+   * Wait until service is started. It does not have to reach a stable state.
+   *
+   * @param client
+   * @param exampleApp
+   * @throws TimeoutException
+   * @throws InterruptedException
+   */
+  protected void waitForServiceToBeStarted(ServiceClient client,
+      Service exampleApp) throws TimeoutException, InterruptedException {
+    waitForServiceToBeInState(client, exampleApp, ServiceState.STARTED);
+  }
+
+  protected void waitForServiceToBeInState(ServiceClient client,
+      Service exampleApp, ServiceState desiredState) throws TimeoutException,
+      InterruptedException {
+    waitForServiceToBeInState(client, exampleApp, desiredState, 200000);
+  }
+
+  /**
+   * Wait until service is started. It does not have to reach a stable state.
+   *
+   * @param client
+   * @param exampleApp
+   * @throws TimeoutException
+   * @throws InterruptedException
+   */
+  protected void waitForServiceToBeInState(ServiceClient client,
+      Service exampleApp, ServiceState desiredState, int waitForMillis) throws
+      TimeoutException, InterruptedException {
+    GenericTestUtils.waitFor(() -> {
+      try {
+        Service retrievedApp = client.getStatus(exampleApp.getName());
+        System.out.println(retrievedApp);
+        return retrievedApp.getState() == desiredState;
+      } catch (Exception e) {
+        e.printStackTrace();
+        return false;
+      }
+    }, 2000, waitForMillis);
+  }
+
+  private int countTotalContainers(Service service) {
+    int totalContainers = 0;
+    for (Component component : service.getComponents()) {
+      totalContainers += component.getNumberOfContainers();
+    }
+    return totalContainers;
+  }
 }
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services/hadoop-yarn-services-core/src/test/java/org/apache/hadoop/yarn/service/TestYarnNativeServices.java
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services/hadoop-yarn-services-core/src/test/java/org/apache/hadoop/yarn/service/TestYarnNativeServices.java
@ -18,7 +18,6 @@

 package org.apache.hadoop.yarn.service;

-import com.google.common.collect.HashMultimap;
 import com.google.common.collect.Multimap;
 import org.apache.commons.io.FileUtils;
 import org.apache.hadoop.fs.Path;
@ -36,7 +35,6 @@ import org.apache.hadoop.yarn.service.api.records.Component;
 import org.apache.hadoop.yarn.service.api.records.ComponentState;
 import org.apache.hadoop.yarn.service.api.records.Configuration;
 import org.apache.hadoop.yarn.service.api.records.Container;
-import org.apache.hadoop.yarn.service.api.records.ContainerState;
 import org.apache.hadoop.yarn.service.api.records.PlacementConstraint;
 import org.apache.hadoop.yarn.service.api.records.PlacementPolicy;
 import org.apache.hadoop.yarn.service.api.records.PlacementScope;
@ -806,131 +804,4 @@ public class TestYarnNativeServices extends ServiceTestUtils {
      i++;
    }
  }
-
-  /**
-   * Wait until all the containers for all components become ready state.
-   *
-   * @param client
-   * @param exampleApp
-   * @return all ready containers of a service.
-   * @throws TimeoutException
-   * @throws InterruptedException
-   */
-  private Multimap<String, String> waitForAllCompToBeReady(ServiceClient client,
-      Service exampleApp) throws TimeoutException, InterruptedException {
-    int expectedTotalContainers = countTotalContainers(exampleApp);
-
-    Multimap<String, String> allContainers = HashMultimap.create();
-
-    GenericTestUtils.waitFor(() -> {
-      try {
-        Service retrievedApp = client.getStatus(exampleApp.getName());
-        int totalReadyContainers = 0;
-        allContainers.clear();
-        LOG.info("Num Components " + retrievedApp.getComponents().size());
-        for (Component component : retrievedApp.getComponents()) {
-          LOG.info("looking for  " + component.getName());
-          LOG.info(component.toString());
-          if (component.getContainers() != null) {
-            if (component.getContainers().size() == exampleApp
-                .getComponent(component.getName()).getNumberOfContainers()) {
-              for (Container container : component.getContainers()) {
-                LOG.info(
-                    "Container state " + container.getState() + ", component "
-                        + component.getName());
-                if (container.getState() == ContainerState.READY) {
-                  totalReadyContainers++;
-                  allContainers.put(component.getName(), container.getId());
-                  LOG.info("Found 1 ready container " + container.getId());
-                }
-              }
-            } else {
-              LOG.info(component.getName() + " Expected number of containers "
-                  + exampleApp.getComponent(component.getName())
-                  .getNumberOfContainers() + ", current = " + component
-                  .getContainers());
-            }
-          }
-        }
-        LOG.info("Exit loop, totalReadyContainers= " + totalReadyContainers
-            + " expected = " + expectedTotalContainers);
-        return totalReadyContainers == expectedTotalContainers;
-      } catch (Exception e) {
-        e.printStackTrace();
-        return false;
-      }
-    }, 2000, 200000);
-    return allContainers;
-  }
-
-  /**
-   * Wait until service state becomes stable. A service is stable when all
-   * requested containers of all components are running and in ready state.
-   *
-   * @param client
-   * @param exampleApp
-   * @throws TimeoutException
-   * @throws InterruptedException
-   */
-  private void waitForServiceToBeStable(ServiceClient client,
-      Service exampleApp) throws TimeoutException, InterruptedException {
-    waitForServiceToBeStable(client, exampleApp, 200000);
-  }
-
-  private void waitForServiceToBeStable(ServiceClient client,
-      Service exampleApp, int waitForMillis)
-      throws TimeoutException, InterruptedException {
-    waitForServiceToBeInState(client, exampleApp, ServiceState.STABLE,
-        waitForMillis);
-  }
-
-  /**
-   * Wait until service is started. It does not have to reach a stable state.
-   *
-   * @param client
-   * @param exampleApp
-   * @throws TimeoutException
-   * @throws InterruptedException
-   */
-  private void waitForServiceToBeStarted(ServiceClient client,
-      Service exampleApp) throws TimeoutException, InterruptedException {
-    waitForServiceToBeInState(client, exampleApp, ServiceState.STARTED);
-  }
-
-  private void waitForServiceToBeInState(ServiceClient client,
-      Service exampleApp, ServiceState desiredState) throws TimeoutException,
-      InterruptedException {
-    waitForServiceToBeInState(client, exampleApp, desiredState, 200000);
-  }
-
-  /**
-   * Wait until service is started. It does not have to reach a stable state.
-   *
-   * @param client
-   * @param exampleApp
-   * @throws TimeoutException
-   * @throws InterruptedException
-   */
-  private void waitForServiceToBeInState(ServiceClient client,
-      Service exampleApp, ServiceState desiredState, int waitForMillis) throws
-      TimeoutException, InterruptedException {
-    GenericTestUtils.waitFor(() -> {
-      try {
-        Service retrievedApp = client.getStatus(exampleApp.getName());
-        System.out.println(retrievedApp);
-        return retrievedApp.getState() == desiredState;
-      } catch (Exception e) {
-        e.printStackTrace();
-        return false;
-      }
-    }, 2000, waitForMillis);
-  }
-
-  private int countTotalContainers(Service service) {
-    int totalContainers = 0;
-    for (Component component : service.getComponents()) {
-      totalContainers += component.getNumberOfContainers();
-    }
-    return totalContainers;
-  }
 }
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/client/api/AppAdminClient.java
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/client/api/AppAdminClient.java
@ -270,4 +270,16 @@ public abstract class AppAdminClient extends CompositeService {
  public abstract int actionUpgradeComponents(String appName,
      List<String> components) throws IOException, YarnException;

+  /**
+   * Operation to be performed by the RM after an application has completed.
+   *
+   * @param appName  the name of the application.
+   * @param userName the name of the user.
+   * @return exit code
+   */
+  @Public
+  @Unstable
+  public abstract int actionCleanUp(String appName, String userName) throws
+      IOException, YarnException;
+
 }
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-registry/src/main/java/org/apache/hadoop/registry/client/binding/RegistryUtils.java
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-registry/src/main/java/org/apache/hadoop/registry/client/binding/RegistryUtils.java
@ -296,6 +296,16 @@ public class RegistryUtils {
   */
  public static String currentUser() {
    String shortUserName = currentUsernameUnencoded();
+    return registryUser(shortUserName);
+  }
+
+  /**
+   * Convert the given user name formatted for the registry.
+   *
+   * @param shortUserName
+   * @return converted user name
+   */
+  public static String registryUser(String shortUserName) {
    String encodedName =  encodeForRegistry(shortUserName);
    // DNS name doesn't allow "_", replace it with "-"
    encodedName = RegistryUtils.convertUsername(encodedName);
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/rmapp/RMAppImpl.java
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/rmapp/RMAppImpl.java
@ -65,6 +65,7 @@ import org.apache.hadoop.yarn.api.records.ReservationId;
 import org.apache.hadoop.yarn.api.records.Resource;
 import org.apache.hadoop.yarn.api.records.ResourceRequest;
 import org.apache.hadoop.yarn.api.records.YarnApplicationState;
+import org.apache.hadoop.yarn.client.api.AppAdminClient;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
 import org.apache.hadoop.yarn.event.Dispatcher;
 import org.apache.hadoop.yarn.event.EventHandler;
@ -1470,6 +1471,33 @@ public class RMAppImpl implements RMApp, Recoverable {
    };
  }

+  /**
+   * Attempt to perform a type-specific cleanup after application has completed.
+   *
+   * @param app application to clean up
+   */
+  static void appAdminClientCleanUp(RMAppImpl app) {
+    try {
+      AppAdminClient client = AppAdminClient.createAppAdminClient(app
+          .applicationType, app.conf);
+      int result = client.actionCleanUp(app.name, app.user);
+      if (result == 0) {
+        LOG.info("Type-specific cleanup of application " + app.applicationId
+            + " of type " + app.applicationType + " succeeded");
+      } else {
+        LOG.warn("Type-specific cleanup of application " + app.applicationId
+            + " of type " + app.applicationType + " did not succeed with exit"
+            + " code " + result);
+      }
+    } catch (IllegalArgumentException e) {
+      // no AppAdminClient class has been specified for the application type,
+      // so this does not need to be logged
+    } catch (Exception e) {
+      LOG.warn("Could not run type-specific cleanup on application " +
+          app.applicationId + " of type " + app.applicationType, e);
+    }
+  }
+
  private static class FinalTransition extends RMAppTransition {

    private final RMAppState finalState;
@ -1504,6 +1532,8 @@ public class RMAppImpl implements RMApp, Recoverable {
          .appFinished(app, finalState, app.finishTime);
      // set the memory free
      app.clearUnusedFields();
+
+      appAdminClientCleanUp(app);
    };
  }