Examples of org.apache.hadoop.yarn.api.records.Container

Package org.apache.hadoop.yarn.api.records

Examples of org.apache.hadoop.yarn.api.records.Container

org.apache.hadoop.yarn.api.records.Container
Container represents an allocated resource in the cluster.

The ResourceManager is the sole authority to allocate any Container to applications. The allocated Container is always on a single node and has a unique {@link ContainerId}. It has a specific amount of {@link Resource} allocated.
It includes details such as:
- {@link ContainerId} for the container, which is globally unique.
- {@link NodeId} of the node on which it is allocated.
- HTTP uri of the node.
- {@link Resource} allocated to the container.
- {@link Priority} at which the container was allocated.
- {@link ContainerState} of the container.
- {@link ContainerToken} of the container, used to securely verify authenticity of the allocation.
- {@link ContainerStatus} of the container.
Typically, an ApplicationMaster receives the Container from the ResourceManager during resource-negotiation and then talks to the NodManager to start/stop containers.
@see AMRMProtocol#allocate(org.apache.hadoop.yarn.api.protocolrecords.AllocateRequest) @see ContainerManager#startContainer(org.apache.hadoop.yarn.api.protocolrecords.StartContainerRequest) @see ContainerManager#stopContainer(org.apache.hadoop.yarn.api.protocolrecords.StopContainerRequest)

        diagnostics);
  }


  @Test
  public void testSuccessfulFinishingToFinished() {
    Container amContainer = allocateApplicationAttempt();
    launchApplicationAttempt(amContainer);
    runApplicationAttempt(amContainer, "host", 8042, "oldtrackingurl", false);
    FinalApplicationStatus finalStatus = FinalApplicationStatus.SUCCEEDED;
    String trackingUrl = "mytrackingurl";
    String diagnostics = "Successful";
    unregisterApplicationAttempt(amContainer, finalStatus, trackingUrl,
        diagnostics);
    applicationAttempt.handle(
        new RMAppAttemptContainerFinishedEvent(
            applicationAttempt.getAppAttemptId(),
            BuilderUtils.newContainerStatus(amContainer.getId(),
                ContainerState.COMPLETE, "", 0)));
    testAppAttemptFinishedState(amContainer, finalStatus, trackingUrl,
        diagnostics, 0, false);
  }

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  ContainerId storeAttempt(RMStateStore store, ApplicationAttemptId attemptId,
      String containerIdStr, Token<AMRMTokenIdentifier> appToken,
      SecretKey clientTokenMasterKey, TestDispatcher dispatcher)
      throws Exception {


    Container container = new ContainerPBImpl();
    container.setId(ConverterUtils.toContainerId(containerIdStr));
    RMAppAttempt mockAttempt = mock(RMAppAttempt.class);
    when(mockAttempt.getAppAttemptId()).thenReturn(attemptId);
    when(mockAttempt.getMasterContainer()).thenReturn(container);
    when(mockAttempt.getAMRMToken()).thenReturn(appToken);
    when(mockAttempt.getClientTokenMasterKey())
        .thenReturn(clientTokenMasterKey);
    dispatcher.attemptId = attemptId;
    dispatcher.storedException = null;
    store.storeApplicationAttempt(mockAttempt);
    waitNotify(dispatcher);
    return container.getId();
  }

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  @SuppressWarnings("unchecked")
  private Container allocateApplicationAttempt() {
    scheduleApplicationAttempt();
    
    // Mock the allocation of AM container 
    Container container = mock(Container.class);
    Resource resource = BuilderUtils.newResource(2048, 1);
    when(container.getId()).thenReturn(
        BuilderUtils.newContainerId(applicationAttempt.getAppAttemptId(), 1));
    when(container.getResource()).thenReturn(resource);
    Allocation allocation = mock(Allocation.class);
    when(allocation.getContainers()).
        thenReturn(Collections.singletonList(container));
    when(
        scheduler.allocate(

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    testAppAttemptKilledState(null, EMPTY_DIAGNOSTICS);
  }


  @Test
  public void testAllocatedToKilled() {
    Container amContainer = allocateApplicationAttempt();
    applicationAttempt.handle(
        new RMAppAttemptEvent(
            applicationAttempt.getAppAttemptId(), 
            RMAppAttemptEventType.KILL));
    testAppAttemptKilledState(amContainer, EMPTY_DIAGNOSTICS);

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    testAppAttemptKilledState(amContainer, EMPTY_DIAGNOSTICS);
  }


  @Test
  public void testAllocatedToFailed() {
    Container amContainer = allocateApplicationAttempt();
    String diagnostics = "Launch Failed";
    applicationAttempt.handle(
        new RMAppAttemptLaunchFailedEvent(
            applicationAttempt.getAppAttemptId(), 
            diagnostics));

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    testAppAttemptFailedState(amContainer, diagnostics);
  }
  
  @Test
  public void testAMCrashAtAllocated() {
    Container amContainer = allocateApplicationAttempt();
    String containerDiagMsg = "some error";
    int exitCode = 123;
    ContainerStatus cs =
        BuilderUtils.newContainerStatus(amContainer.getId(),
          ContainerState.COMPLETE, containerDiagMsg, exitCode);
    applicationAttempt.handle(new RMAppAttemptContainerFinishedEvent(
      applicationAttempt.getAppAttemptId(), cs));
    assertEquals(RMAppAttemptState.FAILED,
      applicationAttempt.getAppAttemptState());

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    verifyTokenCount(applicationAttempt.getAppAttemptId(), 1);
  }
  
  @Test
  public void testRunningToFailed() {
    Container amContainer = allocateApplicationAttempt();
    launchApplicationAttempt(amContainer);
    runApplicationAttempt(amContainer, "host", 8042, "oldtrackingurl", false);
    String containerDiagMsg = "some error";
    int exitCode = 123;
    ContainerStatus cs = BuilderUtils.newContainerStatus(amContainer.getId(),
        ContainerState.COMPLETE, containerDiagMsg, exitCode);
    ApplicationAttemptId appAttemptId = applicationAttempt.getAppAttemptId();
    applicationAttempt.handle(new RMAppAttemptContainerFinishedEvent(
        appAttemptId, cs));
    assertEquals(RMAppAttemptState.FAILED,

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    assertEquals(rmAppPageUrl, applicationAttempt.getTrackingUrl());
  }


  @Test
  public void testRunningToKilled() {
    Container amContainer = allocateApplicationAttempt();
    launchApplicationAttempt(amContainer);
    runApplicationAttempt(amContainer, "host", 8042, "oldtrackingurl", false);
    applicationAttempt.handle(
        new RMAppAttemptEvent(
            applicationAttempt.getAppAttemptId(),

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    verifyTokenCount(applicationAttempt.getAppAttemptId(), 1);
  }


  @Test(timeout=10000)
  public void testLaunchedExpire() {
    Container amContainer = allocateApplicationAttempt();
    launchApplicationAttempt(amContainer);
    applicationAttempt.handle(new RMAppAttemptEvent(
        applicationAttempt.getAppAttemptId(), RMAppAttemptEventType.EXPIRE));
    assertEquals(RMAppAttemptState.FAILED,
        applicationAttempt.getAppAttemptState());

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    verifyTokenCount(applicationAttempt.getAppAttemptId(), 1);
  }


  @Test(timeout=20000)
  public void testRunningExpire() {
    Container amContainer = allocateApplicationAttempt();
    launchApplicationAttempt(amContainer);
    runApplicationAttempt(amContainer, "host", 8042, "oldtrackingurl", false);
    applicationAttempt.handle(new RMAppAttemptEvent(
        applicationAttempt.getAppAttemptId(), RMAppAttemptEventType.EXPIRE));
    assertEquals(RMAppAttemptState.FAILED,

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