Java ApplicationTerminationContext类代码示例

import org.apache.hadoop.yarn.server.api.ApplicationTerminationContext; //导入依赖的package包/类
@Override
public void handle(AuxServicesEvent event) {
  LOG.info("Got event " + event.getType() + " for appId "
      + event.getApplicationID());
  switch (event.getType()) {
  case APPLICATION_INIT:
    LOG.info("Got APPLICATION_INIT for service " + event.getServiceID());
    AuxiliaryService service = serviceMap.get(event.getServiceID());
    if (null == service) {
      LOG.info("service is null");
      // TODO kill all containers waiting on Application
      return;
    }
    service.initializeApplication(new ApplicationInitializationContext(event
      .getUser(), event.getApplicationID(), event.getServiceData()));
    break;
  case APPLICATION_STOP:
    for (AuxiliaryService serv : serviceMap.values()) {
      serv.stopApplication(new ApplicationTerminationContext(event
        .getApplicationID()));
    }
    break;
  default:
    throw new RuntimeException("Unknown type: " + event.getType());
  }
}
 

import org.apache.hadoop.yarn.server.api.ApplicationTerminationContext; //导入依赖的package包/类
@Override
public void stopApplication(ApplicationTerminationContext context) {
  ApplicationId appId = context.getApplicationId();
  JobID jobId = new JobID(Long.toString(appId.getClusterTimestamp()), appId.getId());
  try {
    removeJobShuffleInfo(jobId);
  } catch (IOException e) {
    LOG.error("Error during stopApp", e);
    // TODO add API to AuxiliaryServices to report failures
  }
}
 

import org.apache.hadoop.yarn.server.api.ApplicationTerminationContext; //导入依赖的package包/类
@Override
public void stopApplication(ApplicationTerminationContext context) {
  ApplicationId appId = context.getApplicationId();
  JobID jobId = new JobID(Long.toString(appId.getClusterTimestamp()), appId.getId());
  secretManager.removeTokenForJob(jobId.toString());
  userRsrc.remove(jobId.toString());
}
 

import org.apache.hadoop.yarn.server.api.ApplicationTerminationContext; //导入依赖的package包/类
@Override
public void stopApplication(ApplicationTerminationContext context) {
  stoppedApps.add(context.getApplicationId().getId());
}
 

import org.apache.hadoop.yarn.server.api.ApplicationTerminationContext; //导入依赖的package包/类
@Override
public void stopApplication(ApplicationTerminationContext context) {
}
 

import org.apache.hadoop.yarn.server.api.ApplicationTerminationContext; //导入依赖的package包/类
@Test
public void testRecovery() throws IOException {
  final String user = "someuser";
  final ApplicationId appId = ApplicationId.newInstance(12345, 1);
  final JobID jobId = JobID.downgrade(TypeConverter.fromYarn(appId));
  final File tmpDir = new File(System.getProperty("test.build.data",
      System.getProperty("java.io.tmpdir")),
      TestShuffleHandler.class.getName());
  Configuration conf = new Configuration();
  conf.setInt(ShuffleHandler.SHUFFLE_PORT_CONFIG_KEY, 0);
  conf.setInt(ShuffleHandler.MAX_SHUFFLE_CONNECTIONS, 3);
  ShuffleHandler shuffle = new ShuffleHandler();
  // emulate aux services startup with recovery enabled
  shuffle.setRecoveryPath(new Path(tmpDir.toString()));
  tmpDir.mkdirs();
  try {
    shuffle.init(conf);
    shuffle.start();

    // setup a shuffle token for an application
    DataOutputBuffer outputBuffer = new DataOutputBuffer();
    outputBuffer.reset();
    Token<JobTokenIdentifier> jt = new Token<JobTokenIdentifier>(
        "identifier".getBytes(), "password".getBytes(), new Text(user),
        new Text("shuffleService"));
    jt.write(outputBuffer);
    shuffle.initializeApplication(new ApplicationInitializationContext(user,
        appId, ByteBuffer.wrap(outputBuffer.getData(), 0,
          outputBuffer.getLength())));

    // verify we are authorized to shuffle
    int rc = getShuffleResponseCode(shuffle, jt);
    Assert.assertEquals(HttpURLConnection.HTTP_OK, rc);

    // emulate shuffle handler restart
    shuffle.close();
    shuffle = new ShuffleHandler();
    shuffle.setRecoveryPath(new Path(tmpDir.toString()));
    shuffle.init(conf);
    shuffle.start();

    // verify we are still authorized to shuffle to the old application
    rc = getShuffleResponseCode(shuffle, jt);
    Assert.assertEquals(HttpURLConnection.HTTP_OK, rc);

    // shutdown app and verify access is lost
    shuffle.stopApplication(new ApplicationTerminationContext(appId));
    rc = getShuffleResponseCode(shuffle, jt);
    Assert.assertEquals(HttpURLConnection.HTTP_UNAUTHORIZED, rc);

    // emulate shuffle handler restart
    shuffle.close();
    shuffle = new ShuffleHandler();
    shuffle.setRecoveryPath(new Path(tmpDir.toString()));
    shuffle.init(conf);
    shuffle.start();

    // verify we still don't have access
    rc = getShuffleResponseCode(shuffle, jt);
    Assert.assertEquals(HttpURLConnection.HTTP_UNAUTHORIZED, rc);
  } finally {
    if (shuffle != null) {
      shuffle.close();
    }
    FileUtil.fullyDelete(tmpDir);
  }
}