YARN-7642. Add test case to verify context update after container promotion or demotion with or without auto update. Contributed by Weiwei Yang.

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/api/impl/TestAMRMClient.java

@@ -33,6 +33,7 @@ import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collection;
 import java.util.Collections;
+import java.util.concurrent.TimeoutException;
 import java.util.function.Supplier;
 import java.util.HashMap;
 import java.util.HashSet;
@@ -51,6 +52,7 @@ import org.apache.hadoop.security.SecurityUtil;
 import org.apache.hadoop.security.UserGroupInformation;
 import org.apache.hadoop.security.token.SecretManager.InvalidToken;
 import org.apache.hadoop.service.Service.STATE;
+import org.apache.hadoop.test.GenericTestUtils;
 import org.apache.hadoop.yarn.api.ApplicationMasterProtocol;
 import org.apache.hadoop.yarn.api.protocolrecords.AllocateRequest;
 import org.apache.hadoop.yarn.api.protocolrecords.AllocateResponse;
@@ -68,6 +70,7 @@ import org.apache.hadoop.yarn.exceptions.YarnException;
 import org.apache.hadoop.yarn.ipc.YarnRPC;
 import org.apache.hadoop.yarn.security.AMRMTokenIdentifier;
 import org.apache.hadoop.yarn.server.MiniYARNCluster;
+import org.apache.hadoop.yarn.server.nodemanager.NodeManager;
 import org.apache.hadoop.yarn.server.resourcemanager.RMContext;
 import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttempt;
 import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptState;
@@ -96,6 +99,7 @@ import org.eclipse.jetty.util.log.Log;
 @RunWith(value = Parameterized.class)
 public class TestAMRMClient {
   private String schedulerName = null;
+  private boolean autoUpdate = false;
   private Configuration conf = null;
   private MiniYARNCluster yarnCluster = null;
   private YarnClient yarnClient = null;
@@ -115,16 +119,19 @@ public class TestAMRMClient {
   private String[] racks;
   private final static int DEFAULT_ITERATION = 3;
 
-  public TestAMRMClient(String schedulerName) {
+  public TestAMRMClient(String schedulerName, boolean autoUpdate) {
     this.schedulerName = schedulerName;
+    this.autoUpdate = autoUpdate;
   }
 
   @Parameterized.Parameters
   public static Collection<Object[]> data() {
-    List<Object[]> list = new ArrayList<Object[]>(2);
+    // Currently only capacity scheduler supports auto update.
-    list.add(new Object[] {CapacityScheduler.class.getName()});
+    return Arrays.asList(new Object[][] {
-    list.add(new Object[] {FairScheduler.class.getName()});
+        {CapacityScheduler.class.getName(), true},
-    return list;
+        {CapacityScheduler.class.getName(), false},
+        {FairScheduler.class.getName(), false}
+    });
   }
 
   @Before
@@ -137,6 +144,9 @@ public class TestAMRMClient {
       throws Exception {
     // start minicluster
     this.conf = conf;
+    if (autoUpdate) {
+      conf.setBoolean(YarnConfiguration.RM_AUTO_UPDATE_CONTAINERS, true);
+    }
     conf.set(YarnConfiguration.RM_SCHEDULER, schedulerName);
     conf.setLong(
       YarnConfiguration.RM_AMRM_TOKEN_MASTER_KEY_ROLLING_INTERVAL_SECS,
@@ -1157,6 +1167,139 @@ public class TestAMRMClient {
     assertEquals(1, updatedContainers.size());
   }
 
+  @Test
+  public void testAMRMContainerPromotionAndDemotionWithAutoUpdate()
+      throws Exception {
+    AMRMClientImpl<AMRMClient.ContainerRequest> amClient =
+        (AMRMClientImpl<AMRMClient.ContainerRequest>) AMRMClient
+            .createAMRMClient();
+    amClient.init(conf);
+    amClient.start();
+
+    // start am nm client
+    NMClientImpl nmClient = (NMClientImpl) NMClient.createNMClient();
+    Assert.assertNotNull(nmClient);
+    nmClient.init(conf);
+    nmClient.start();
+    assertEquals(STATE.STARTED, nmClient.getServiceState());
+
+    amClient.registerApplicationMaster("Host", 10000, "");
+
+    // setup container request
+    assertEquals(0, amClient.ask.size());
+    assertEquals(0, amClient.release.size());
+
+    // START OPPORTUNISTIC Container, Send allocation request to RM
+    Resource reqResource = Resource.newInstance(512, 1);
+    amClient.addContainerRequest(
+        new AMRMClient.ContainerRequest(reqResource, null, null, priority2, 0,
+            true, null, ExecutionTypeRequest
+            .newInstance(ExecutionType.OPPORTUNISTIC, true)));
+
+    // RM should allocate container within 1 calls to allocate()
+    AllocateResponse allocResponse = waitForAllocation(amClient, 1, 0);
+
+    assertEquals(1, allocResponse.getAllocatedContainers().size());
+    startContainer(allocResponse, nmClient);
+
+    Container c = allocResponse.getAllocatedContainers().get(0);
+    amClient.requestContainerUpdate(c,
+        UpdateContainerRequest.newInstance(c.getVersion(),
+            c.getId(), ContainerUpdateType.PROMOTE_EXECUTION_TYPE,
+            null, ExecutionType.GUARANTEED));
+
+    allocResponse = waitForAllocation(amClient, 0, 1);
+
+    // Make sure container is updated.
+    UpdatedContainer updatedContainer = allocResponse
+        .getUpdatedContainers().get(0);
+
+    // If container auto update is not enabled, we need to notify
+    // NM about this update.
+    if (!autoUpdate) {
+      nmClient.updateContainerResource(updatedContainer.getContainer());
+    }
+
+    // Wait until NM context updated, or fail on timeout.
+    waitForNMContextUpdate(updatedContainer, ExecutionType.GUARANTEED);
+
+    // Once promoted, demote it back to OPPORTUNISTIC
+    amClient.requestContainerUpdate(updatedContainer.getContainer(),
+        UpdateContainerRequest.newInstance(
+            updatedContainer.getContainer().getVersion(),
+            updatedContainer.getContainer().getId(),
+            ContainerUpdateType.DEMOTE_EXECUTION_TYPE,
+            null, ExecutionType.OPPORTUNISTIC));
+
+    allocResponse = waitForAllocation(amClient, 0, 1);
+
+    // Make sure container is updated.
+    updatedContainer = allocResponse.getUpdatedContainers().get(0);
+
+    if (!autoUpdate) {
+      nmClient.updateContainerResource(updatedContainer.getContainer());
+    }
+
+    // Wait until NM context updated, or fail on timeout.
+    waitForNMContextUpdate(updatedContainer, ExecutionType.OPPORTUNISTIC);
+
+    amClient.close();
+  }
+
+  private AllocateResponse waitForAllocation(AMRMClient amrmClient,
+      int expectedAllocatedContainerNum, int expectedUpdatedContainerNum)
+      throws Exception {
+    AllocateResponse allocResponse = null;
+    int iteration = 100;
+    while(iteration>0) {
+      allocResponse = amrmClient.allocate(0.1f);
+      int actualAllocated = allocResponse.getAllocatedContainers().size();
+      int actualUpdated = allocResponse.getUpdatedContainers().size();
+      if (expectedAllocatedContainerNum == actualAllocated &&
+          expectedUpdatedContainerNum == actualUpdated) {
+        break;
+      }
+      Thread.sleep(100);
+      iteration--;
+    }
+    return allocResponse;
+  }
+
+  private void waitForNMContextUpdate(UpdatedContainer updatedContainer,
+      ExecutionType expectedType) {
+    for (int i=0; i<nodeCount; i++) {
+      NodeManager nm = yarnCluster.getNodeManager(i);
+      if (nm.getNMContext().getNodeId()
+          .equals(updatedContainer.getContainer().getNodeId())) {
+        try {
+          GenericTestUtils.waitFor(() -> {
+            org.apache.hadoop.yarn.server.nodemanager.containermanager
+                .container.Container nmContainer =
+                nm.getNMContext().getContainers()
+                    .get(updatedContainer.getContainer().getId());
+            if (nmContainer != null) {
+              ExecutionType actual = nmContainer.getContainerTokenIdentifier()
+                  .getExecutionType();
+              return actual.equals(expectedType);
+            }
+            return false;
+          }, 1000, 30000);
+        } catch (TimeoutException e) {
+          fail("Times out waiting for container state in"
+              + " NM context to be updated");
+        } catch (InterruptedException e) {
+          // Ignorable.
+        }
+        break;
+      }
+
+      // Iterated all nodes but still can't get a match
+      if (i == nodeCount -1) {
+        fail("Container doesn't exist in NM context.");
+      }
+    }
+  }
+
   @Test(timeout=60000)
   public void testAMRMClientWithContainerPromotion()
       throws YarnException, IOException {
@@ -1446,7 +1589,9 @@ public class TestAMRMClient {
     for (UpdatedContainer updatedContainer : allocResponse
         .getUpdatedContainers()) {
       Container container = updatedContainer.getContainer();
-      nmClient.increaseContainerResource(container);
+      if (!autoUpdate) {
+        nmClient.increaseContainerResource(container);
+      }
       // NodeManager may still need some time to get the stable
       // container status
       while (true) {