org.apache.hadoop.yarn.YarnUncaughtExceptionHandler Java Exaples

Source File: JobHistoryServer.java From XLearning with Apache License 2.0

6 votes

static JobHistoryServer launchJobHistoryServer(String[] args) {
  Thread.
      setDefaultUncaughtExceptionHandler(new YarnUncaughtExceptionHandler());
  StringUtils.startupShutdownMessage(JobHistoryServer.class, args, LOG);
  JobHistoryServer jobHistoryServer = null;
  try {
    jobHistoryServer = new JobHistoryServer();
    ShutdownHookManager.get().addShutdownHook(
        new CompositeServiceShutdownHook(jobHistoryServer),
        SHUTDOWN_HOOK_PRIORITY);
    YarnConfiguration conf = new YarnConfiguration(new JobConf());
    new GenericOptionsParser(conf, args);
    jobHistoryServer.init(conf);
    jobHistoryServer.start();
  } catch (Throwable t) {
    LOG.fatal("Error starting JobHistoryServer", t);
    ExitUtil.terminate(-1, "Error starting JobHistoryServer");
  }
  return jobHistoryServer;
}

Source File: JobHistoryServer.java From big-c with Apache License 2.0

6 votes

static JobHistoryServer launchJobHistoryServer(String[] args) {
  Thread.
      setDefaultUncaughtExceptionHandler(new YarnUncaughtExceptionHandler());
  StringUtils.startupShutdownMessage(JobHistoryServer.class, args, LOG);
  JobHistoryServer jobHistoryServer = null;
  try {
    jobHistoryServer = new JobHistoryServer();
    ShutdownHookManager.get().addShutdownHook(
        new CompositeServiceShutdownHook(jobHistoryServer),
        SHUTDOWN_HOOK_PRIORITY);
    YarnConfiguration conf = new YarnConfiguration(new JobConf());
    new GenericOptionsParser(conf, args);
    jobHistoryServer.init(conf);
    jobHistoryServer.start();
  } catch (Throwable t) {
    LOG.fatal("Error starting JobHistoryServer", t);
    ExitUtil.terminate(-1, "Error starting JobHistoryServer");
  }
  return jobHistoryServer;
}

Source File: SharedCacheManager.java From hadoop with Apache License 2.0

6 votes

public static void main(String[] args) {
  Thread.setDefaultUncaughtExceptionHandler(new YarnUncaughtExceptionHandler());
  StringUtils.startupShutdownMessage(SharedCacheManager.class, args, LOG);
  try {
    Configuration conf = new YarnConfiguration();
    SharedCacheManager sharedCacheManager = new SharedCacheManager();
    ShutdownHookManager.get().addShutdownHook(
        new CompositeServiceShutdownHook(sharedCacheManager),
        SHUTDOWN_HOOK_PRIORITY);
    sharedCacheManager.init(conf);
    sharedCacheManager.start();
  } catch (Throwable t) {
    LOG.fatal("Error starting SharedCacheManager", t);
    System.exit(-1);
  }
}

Source File: ApplicationHistoryServer.java From big-c with Apache License 2.0

6 votes

static ApplicationHistoryServer launchAppHistoryServer(String[] args) {
  Thread
    .setDefaultUncaughtExceptionHandler(new YarnUncaughtExceptionHandler());
  StringUtils.startupShutdownMessage(ApplicationHistoryServer.class, args,
    LOG);
  ApplicationHistoryServer appHistoryServer = null;
  try {
    appHistoryServer = new ApplicationHistoryServer();
    ShutdownHookManager.get().addShutdownHook(
      new CompositeServiceShutdownHook(appHistoryServer),
      SHUTDOWN_HOOK_PRIORITY);
    YarnConfiguration conf = new YarnConfiguration();
    new GenericOptionsParser(conf, args);
    appHistoryServer.init(conf);
    appHistoryServer.start();
  } catch (Throwable t) {
    LOG.fatal("Error starting ApplicationHistoryServer", t);
    ExitUtil.terminate(-1, "Error starting ApplicationHistoryServer");
  }
  return appHistoryServer;
}

Source File: ResourceManager.java From big-c with Apache License 2.0

6 votes

public static void main(String argv[]) {

   Thread.setDefaultUncaughtExceptionHandler(new YarnUncaughtExceptionHandler());
   StringUtils.startupShutdownMessage(ResourceManager.class, argv, LOG);
   try {

     Configuration conf = new YarnConfiguration();
     GenericOptionsParser hParser = new GenericOptionsParser(conf, argv);
     argv = hParser.getRemainingArgs();
     // If -format-state-store, then delete RMStateStore; else startup normally
     if (argv.length == 1 && argv[0].equals("-format-state-store")) {
       deleteRMStateStore(conf);
     } else {
       ResourceManager resourceManager = new ResourceManager();
       ShutdownHookManager.get().addShutdownHook(
         new CompositeServiceShutdownHook(resourceManager),
         SHUTDOWN_HOOK_PRIORITY);
       resourceManager.init(conf);
       resourceManager.start();
     }
   } catch (Throwable t) {
     LOG.fatal("Error starting ResourceManager", t);
     System.exit(-1);
   }
   
 }

Source File: ResourceManager.java From hadoop with Apache License 2.0

6 votes

public static void main(String argv[]) {
  Thread.setDefaultUncaughtExceptionHandler(new YarnUncaughtExceptionHandler());
  StringUtils.startupShutdownMessage(ResourceManager.class, argv, LOG);
  try {
    Configuration conf = new YarnConfiguration();
    GenericOptionsParser hParser = new GenericOptionsParser(conf, argv);
    argv = hParser.getRemainingArgs();
    // If -format-state-store, then delete RMStateStore; else startup normally
    if (argv.length == 1 && argv[0].equals("-format-state-store")) {
      deleteRMStateStore(conf);
    } else {
      ResourceManager resourceManager = new ResourceManager();
      ShutdownHookManager.get().addShutdownHook(
        new CompositeServiceShutdownHook(resourceManager),
        SHUTDOWN_HOOK_PRIORITY);
      resourceManager.init(conf);
      resourceManager.start();
    }
  } catch (Throwable t) {
    LOG.fatal("Error starting ResourceManager", t);
    System.exit(-1);
  }
}

Source File: ApplicationHistoryServer.java From hadoop with Apache License 2.0

6 votes

static ApplicationHistoryServer launchAppHistoryServer(String[] args) {
  Thread
    .setDefaultUncaughtExceptionHandler(new YarnUncaughtExceptionHandler());
  StringUtils.startupShutdownMessage(ApplicationHistoryServer.class, args,
    LOG);
  ApplicationHistoryServer appHistoryServer = null;
  try {
    appHistoryServer = new ApplicationHistoryServer();
    ShutdownHookManager.get().addShutdownHook(
      new CompositeServiceShutdownHook(appHistoryServer),
      SHUTDOWN_HOOK_PRIORITY);
    YarnConfiguration conf = new YarnConfiguration();
    new GenericOptionsParser(conf, args);
    appHistoryServer.init(conf);
    appHistoryServer.start();
  } catch (Throwable t) {
    LOG.fatal("Error starting ApplicationHistoryServer", t);
    ExitUtil.terminate(-1, "Error starting ApplicationHistoryServer");
  }
  return appHistoryServer;
}

Source File: JobHistoryServer.java From hadoop with Apache License 2.0

6 votes

static JobHistoryServer launchJobHistoryServer(String[] args) {
  Thread.
      setDefaultUncaughtExceptionHandler(new YarnUncaughtExceptionHandler());
  StringUtils.startupShutdownMessage(JobHistoryServer.class, args, LOG);
  JobHistoryServer jobHistoryServer = null;
  try {
    jobHistoryServer = new JobHistoryServer();
    ShutdownHookManager.get().addShutdownHook(
        new CompositeServiceShutdownHook(jobHistoryServer),
        SHUTDOWN_HOOK_PRIORITY);
    YarnConfiguration conf = new YarnConfiguration(new JobConf());
    new GenericOptionsParser(conf, args);
    jobHistoryServer.init(conf);
    jobHistoryServer.start();
  } catch (Throwable t) {
    LOG.fatal("Error starting JobHistoryServer", t);
    ExitUtil.terminate(-1, "Error starting JobHistoryServer");
  }
  return jobHistoryServer;
}

Source File: AMSApplicationServer.java From ambari-metrics with Apache License 2.0

6 votes

static AMSApplicationServer launchAMSApplicationServer(String[] args) {
  Thread.setDefaultUncaughtExceptionHandler(new YarnUncaughtExceptionHandler());
  StringUtils.startupShutdownMessage(AMSApplicationServer.class, args, LOG);
  AMSApplicationServer amsApplicationServer = null;
  try {
    amsApplicationServer = new AMSApplicationServer();
    ShutdownHookManager.get().addShutdownHook(
      new CompositeServiceShutdownHook(amsApplicationServer),
      SHUTDOWN_HOOK_PRIORITY);
    YarnConfiguration conf = new YarnConfiguration();
    amsApplicationServer.init(conf);
    amsApplicationServer.start();
  } catch (Throwable t) {
    LOG.fatal("Error starting AMSApplicationServer", t);
    ExitUtil.terminate(-1, "Error starting AMSApplicationServer");
  }
  return amsApplicationServer;
}

Source File: SharedCacheManager.java From big-c with Apache License 2.0

6 votes

public static void main(String[] args) {
  Thread.setDefaultUncaughtExceptionHandler(new YarnUncaughtExceptionHandler());
  StringUtils.startupShutdownMessage(SharedCacheManager.class, args, LOG);
  try {
    Configuration conf = new YarnConfiguration();
    SharedCacheManager sharedCacheManager = new SharedCacheManager();
    ShutdownHookManager.get().addShutdownHook(
        new CompositeServiceShutdownHook(sharedCacheManager),
        SHUTDOWN_HOOK_PRIORITY);
    sharedCacheManager.init(conf);
    sharedCacheManager.start();
  } catch (Throwable t) {
    LOG.fatal("Error starting SharedCacheManager", t);
    System.exit(-1);
  }
}

Source File: WebAppProxyServer.java From big-c with Apache License 2.0

5 votes

public static void main(String[] args) {
  Thread.setDefaultUncaughtExceptionHandler(new YarnUncaughtExceptionHandler());
  StringUtils.startupShutdownMessage(WebAppProxyServer.class, args, LOG);
  try {
    YarnConfiguration configuration = new YarnConfiguration();
    new GenericOptionsParser(configuration, args);
    WebAppProxyServer proxyServer = startServer(configuration);
    proxyServer.proxy.join();
  } catch (Throwable t) {
    ExitUtil.terminate(-1, t);
  }
}

Source File: NodeManager.java From big-c with Apache License 2.0

5 votes

public static void main(String[] args) throws IOException {
  Thread.setDefaultUncaughtExceptionHandler(new YarnUncaughtExceptionHandler());
  StringUtils.startupShutdownMessage(NodeManager.class, args, LOG);
  NodeManager nodeManager = new NodeManager();
  Configuration conf = new YarnConfiguration();
  new GenericOptionsParser(conf, args);
  nodeManager.initAndStartNodeManager(conf, false);
}

Source File: NodeManager.java From hadoop with Apache License 2.0

5 votes

public static void main(String[] args) throws IOException {
  Thread.setDefaultUncaughtExceptionHandler(new YarnUncaughtExceptionHandler());
  StringUtils.startupShutdownMessage(NodeManager.class, args, LOG);
  NodeManager nodeManager = new NodeManager();
  Configuration conf = new YarnConfiguration();
  new GenericOptionsParser(conf, args);
  nodeManager.initAndStartNodeManager(conf, false);
}

Source File: WebAppProxyServer.java From hadoop with Apache License 2.0

5 votes

public static void main(String[] args) {
  Thread.setDefaultUncaughtExceptionHandler(new YarnUncaughtExceptionHandler());
  StringUtils.startupShutdownMessage(WebAppProxyServer.class, args, LOG);
  try {
    YarnConfiguration configuration = new YarnConfiguration();
    new GenericOptionsParser(configuration, args);
    WebAppProxyServer proxyServer = startServer(configuration);
    proxyServer.proxy.join();
  } catch (Throwable t) {
    ExitUtil.terminate(-1, t);
  }
}

Source File: ContainerLocalizer.java From big-c with Apache License 2.0

4 votes

public static void main(String[] argv) throws Throwable {
  Thread.setDefaultUncaughtExceptionHandler(new YarnUncaughtExceptionHandler());
  // usage: $0 user appId locId host port app_log_dir user_dir [user_dir]*
  // let $x = $x/usercache for $local.dir
  // MKDIR $x/$user/appcache/$appid
  // MKDIR $x/$user/appcache/$appid/output
  // MKDIR $x/$user/appcache/$appid/filecache
  // LOAD $x/$user/appcache/$appid/appTokens
  try {
    String user = argv[0];
    String appId = argv[1];
    String locId = argv[2];
    InetSocketAddress nmAddr =
        new InetSocketAddress(argv[3], Integer.parseInt(argv[4]));
    String[] sLocaldirs = Arrays.copyOfRange(argv, 5, argv.length);
    ArrayList<Path> localDirs = new ArrayList<Path>(sLocaldirs.length);
    for (String sLocaldir : sLocaldirs) {
      localDirs.add(new Path(sLocaldir));
    }

    final String uid =
        UserGroupInformation.getCurrentUser().getShortUserName();
    if (!user.equals(uid)) {
      // TODO: fail localization
      LOG.warn("Localization running as " + uid + " not " + user);
    }

    ContainerLocalizer localizer =
        new ContainerLocalizer(FileContext.getLocalFSFileContext(), user,
            appId, locId, localDirs,
            RecordFactoryProvider.getRecordFactory(null));
    int nRet = localizer.runLocalization(nmAddr);
    if (LOG.isDebugEnabled()) {
      LOG.debug(String.format("nRet: %d", nRet));
    }
    System.exit(nRet);
  } catch (Throwable e) {
    // Print error to stdout so that LCE can use it.
    e.printStackTrace(System.out);
    LOG.error("Exception in main:", e);
    throw e;
  }
}

Source File: MRAppMaster.java From hadoop with Apache License 2.0

4 votes

public static void main(String[] args) {
  try {
    Thread.setDefaultUncaughtExceptionHandler(new YarnUncaughtExceptionHandler());
    String containerIdStr =
        System.getenv(Environment.CONTAINER_ID.name());
    String nodeHostString = System.getenv(Environment.NM_HOST.name());
    String nodePortString = System.getenv(Environment.NM_PORT.name());
    String nodeHttpPortString =
        System.getenv(Environment.NM_HTTP_PORT.name());
    String appSubmitTimeStr =
        System.getenv(ApplicationConstants.APP_SUBMIT_TIME_ENV);
    
    validateInputParam(containerIdStr,
        Environment.CONTAINER_ID.name());
    validateInputParam(nodeHostString, Environment.NM_HOST.name());
    validateInputParam(nodePortString, Environment.NM_PORT.name());
    validateInputParam(nodeHttpPortString,
        Environment.NM_HTTP_PORT.name());
    validateInputParam(appSubmitTimeStr,
        ApplicationConstants.APP_SUBMIT_TIME_ENV);

    ContainerId containerId = ConverterUtils.toContainerId(containerIdStr);
    ApplicationAttemptId applicationAttemptId =
        containerId.getApplicationAttemptId();
    long appSubmitTime = Long.parseLong(appSubmitTimeStr);
    
    
    MRAppMaster appMaster =
        new MRAppMaster(applicationAttemptId, containerId, nodeHostString,
            Integer.parseInt(nodePortString),
            Integer.parseInt(nodeHttpPortString), appSubmitTime);
    ShutdownHookManager.get().addShutdownHook(
      new MRAppMasterShutdownHook(appMaster), SHUTDOWN_HOOK_PRIORITY);
    JobConf conf = new JobConf(new YarnConfiguration());
    conf.addResource(new Path(MRJobConfig.JOB_CONF_FILE));
    
    MRWebAppUtil.initialize(conf);
    String jobUserName = System
        .getenv(ApplicationConstants.Environment.USER.name());
    conf.set(MRJobConfig.USER_NAME, jobUserName);
    initAndStartAppMaster(appMaster, conf, jobUserName);
  } catch (Throwable t) {
    LOG.fatal("Error starting MRAppMaster", t);
    ExitUtil.terminate(1, t);
  }
}

Source File: ContainerLocalizer.java From hadoop with Apache License 2.0

4 votes

public static void main(String[] argv) throws Throwable {
  Thread.setDefaultUncaughtExceptionHandler(new YarnUncaughtExceptionHandler());
  // usage: $0 user appId locId host port app_log_dir user_dir [user_dir]*
  // let $x = $x/usercache for $local.dir
  // MKDIR $x/$user/appcache/$appid
  // MKDIR $x/$user/appcache/$appid/output
  // MKDIR $x/$user/appcache/$appid/filecache
  // LOAD $x/$user/appcache/$appid/appTokens
  try {
    String user = argv[0];
    String appId = argv[1];
    String locId = argv[2];
    InetSocketAddress nmAddr =
        new InetSocketAddress(argv[3], Integer.parseInt(argv[4]));
    String[] sLocaldirs = Arrays.copyOfRange(argv, 5, argv.length);
    ArrayList<Path> localDirs = new ArrayList<Path>(sLocaldirs.length);
    for (String sLocaldir : sLocaldirs) {
      localDirs.add(new Path(sLocaldir));
    }

    final String uid =
        UserGroupInformation.getCurrentUser().getShortUserName();
    if (!user.equals(uid)) {
      // TODO: fail localization
      LOG.warn("Localization running as " + uid + " not " + user);
    }

    ContainerLocalizer localizer =
        new ContainerLocalizer(FileContext.getLocalFSFileContext(), user,
            appId, locId, localDirs,
            RecordFactoryProvider.getRecordFactory(null));
    int nRet = localizer.runLocalization(nmAddr);
    if (LOG.isDebugEnabled()) {
      LOG.debug(String.format("nRet: %d", nRet));
    }
    System.exit(nRet);
  } catch (Throwable e) {
    // Print error to stdout so that LCE can use it.
    e.printStackTrace(System.out);
    LOG.error("Exception in main:", e);
    throw e;
  }
}

Source File: MRAppMaster.java From big-c with Apache License 2.0

4 votes

public static void main(String[] args) {
  try {
    Thread.setDefaultUncaughtExceptionHandler(new YarnUncaughtExceptionHandler());
    String containerIdStr =
        System.getenv(Environment.CONTAINER_ID.name());
    String nodeHostString = System.getenv(Environment.NM_HOST.name());
    String nodePortString = System.getenv(Environment.NM_PORT.name());
    String nodeHttpPortString =
        System.getenv(Environment.NM_HTTP_PORT.name());
    String appSubmitTimeStr =
        System.getenv(ApplicationConstants.APP_SUBMIT_TIME_ENV);
    
    validateInputParam(containerIdStr,
        Environment.CONTAINER_ID.name());
    validateInputParam(nodeHostString, Environment.NM_HOST.name());
    validateInputParam(nodePortString, Environment.NM_PORT.name());
    validateInputParam(nodeHttpPortString,
        Environment.NM_HTTP_PORT.name());
    validateInputParam(appSubmitTimeStr,
        ApplicationConstants.APP_SUBMIT_TIME_ENV);

    ContainerId containerId = ConverterUtils.toContainerId(containerIdStr);
    ApplicationAttemptId applicationAttemptId =
        containerId.getApplicationAttemptId();
    long appSubmitTime = Long.parseLong(appSubmitTimeStr);
    
    
    MRAppMaster appMaster =
        new MRAppMaster(applicationAttemptId, containerId, nodeHostString,
            Integer.parseInt(nodePortString),
            Integer.parseInt(nodeHttpPortString), appSubmitTime);
    ShutdownHookManager.get().addShutdownHook(
      new MRAppMasterShutdownHook(appMaster), SHUTDOWN_HOOK_PRIORITY);
    JobConf conf = new JobConf(new YarnConfiguration());
    conf.addResource(new Path(MRJobConfig.JOB_CONF_FILE));
    
    MRWebAppUtil.initialize(conf);
    String jobUserName = System
        .getenv(ApplicationConstants.Environment.USER.name());
    conf.set(MRJobConfig.USER_NAME, jobUserName);
    initAndStartAppMaster(appMaster, conf, jobUserName);
  } catch (Throwable t) {
    LOG.fatal("Error starting MRAppMaster", t);
    ExitUtil.terminate(1, t);
  }
}

Source File: DAGAppMaster.java From incubator-tez with Apache License 2.0

4 votes

public static void main(String[] args) {
  try {
    Thread.setDefaultUncaughtExceptionHandler(new YarnUncaughtExceptionHandler());
    String containerIdStr =
        System.getenv(Environment.CONTAINER_ID.name());
    String nodeHostString = System.getenv(Environment.NM_HOST.name());
    String nodePortString = System.getenv(Environment.NM_PORT.name());
    String nodeHttpPortString =
        System.getenv(Environment.NM_HTTP_PORT.name());
    String appSubmitTimeStr =
        System.getenv(ApplicationConstants.APP_SUBMIT_TIME_ENV);

    validateInputParam(appSubmitTimeStr,
        ApplicationConstants.APP_SUBMIT_TIME_ENV);

    ContainerId containerId = ConverterUtils.toContainerId(containerIdStr);
    ApplicationAttemptId applicationAttemptId =
        containerId.getApplicationAttemptId();

    long appSubmitTime = Long.parseLong(appSubmitTimeStr);

    final Configuration conf = new Configuration(new YarnConfiguration());
    TezUtils.addUserSpecifiedTezConfiguration(conf);

    String jobUserName = System
        .getenv(ApplicationConstants.Environment.USER.name());

    // Do not automatically close FileSystem objects so that in case of
    // SIGTERM I have a chance to write out the job history. I'll be closing
    // the objects myself.
    conf.setBoolean("fs.automatic.close", false);

    // Command line options
    Options opts = new Options();
    opts.addOption(TezConstants.TEZ_SESSION_MODE_CLI_OPTION,
        false, "Run Tez Application Master in Session mode");

    CommandLine cliParser = new GnuParser().parse(opts, args);

    DAGAppMaster appMaster =
        new DAGAppMaster(applicationAttemptId, containerId, nodeHostString,
            Integer.parseInt(nodePortString),
            Integer.parseInt(nodeHttpPortString), appSubmitTime,
            cliParser.hasOption(TezConstants.TEZ_SESSION_MODE_CLI_OPTION));
    ShutdownHookManager.get().addShutdownHook(
      new DAGAppMasterShutdownHook(appMaster), SHUTDOWN_HOOK_PRIORITY);

    Limits.setConfiguration(conf);
    initAndStartAppMaster(appMaster, conf,
        jobUserName);

  } catch (Throwable t) {
    LOG.fatal("Error starting DAGAppMaster", t);
    System.exit(1);
  }
}

Source File: DAGAppMaster.java From tez with Apache License 2.0

4 votes

public static void main(String[] args) {
  try {
    Thread.setDefaultUncaughtExceptionHandler(new YarnUncaughtExceptionHandler());
    final String pid = System.getenv().get("JVM_PID");
    String containerIdStr =
        System.getenv(Environment.CONTAINER_ID.name());
    String nodeHostString = System.getenv(Environment.NM_HOST.name());
    String nodePortString = System.getenv(Environment.NM_PORT.name());
    String nodeHttpPortString =
        System.getenv(Environment.NM_HTTP_PORT.name());
    String appSubmitTimeStr =
        System.getenv(ApplicationConstants.APP_SUBMIT_TIME_ENV);
    String clientVersion = System.getenv(TezConstants.TEZ_CLIENT_VERSION_ENV);
    if (clientVersion == null) {
      clientVersion = VersionInfo.UNKNOWN;
    }

    validateInputParam(appSubmitTimeStr,
        ApplicationConstants.APP_SUBMIT_TIME_ENV);

    ContainerId containerId = ConverterUtils.toContainerId(containerIdStr);
    ApplicationAttemptId applicationAttemptId =
        containerId.getApplicationAttemptId();

    long appSubmitTime = Long.parseLong(appSubmitTimeStr);

    String jobUserName = System
        .getenv(ApplicationConstants.Environment.USER.name());

    // Command line options
    Options opts = new Options();
    opts.addOption(TezConstants.TEZ_SESSION_MODE_CLI_OPTION,
        false, "Run Tez Application Master in Session mode");

    CommandLine cliParser = new GnuParser().parse(opts, args);
    boolean sessionModeCliOption = cliParser.hasOption(TezConstants.TEZ_SESSION_MODE_CLI_OPTION);

    LOG.info("Creating DAGAppMaster for "
        + "applicationId=" + applicationAttemptId.getApplicationId()
        + ", attemptNum=" + applicationAttemptId.getAttemptId()
        + ", AMContainerId=" + containerId
        + ", jvmPid=" + pid
        + ", userFromEnv=" + jobUserName
        + ", cliSessionOption=" + sessionModeCliOption
        + ", pwd=" + System.getenv(Environment.PWD.name())
        + ", localDirs=" + System.getenv(Environment.LOCAL_DIRS.name())
        + ", logDirs=" + System.getenv(Environment.LOG_DIRS.name()));

    // TODO Does this really need to be a YarnConfiguration ?
    Configuration conf = new Configuration(new YarnConfiguration());

    ConfigurationProto confProto =
        TezUtilsInternal.readUserSpecifiedTezConfiguration(System.getenv(Environment.PWD.name()));
    TezUtilsInternal.addUserSpecifiedTezConfiguration(conf, confProto.getConfKeyValuesList());

    AMPluginDescriptorProto amPluginDescriptorProto = null;
    if (confProto.hasAmPluginDescriptor()) {
      amPluginDescriptorProto = confProto.getAmPluginDescriptor();
    }

    UserGroupInformation.setConfiguration(conf);
    Credentials credentials = UserGroupInformation.getCurrentUser().getCredentials();

    TezUtilsInternal.setSecurityUtilConfigration(LOG, conf);

    DAGAppMaster appMaster =
        new DAGAppMaster(applicationAttemptId, containerId, nodeHostString,
            Integer.parseInt(nodePortString),
            Integer.parseInt(nodeHttpPortString), new SystemClock(), appSubmitTime,
            sessionModeCliOption,
            System.getenv(Environment.PWD.name()),
            TezCommonUtils.getTrimmedStrings(System.getenv(Environment.LOCAL_DIRS.name())),
            TezCommonUtils.getTrimmedStrings(System.getenv(Environment.LOG_DIRS.name())),
            clientVersion, credentials, jobUserName, amPluginDescriptorProto);
    ShutdownHookManager.get().addShutdownHook(
      new DAGAppMasterShutdownHook(appMaster), SHUTDOWN_HOOK_PRIORITY);

    // log the system properties
    if (LOG.isInfoEnabled()) {
      String systemPropsToLog = TezCommonUtils.getSystemPropertiesToLog(conf);
      if (systemPropsToLog != null) {
        LOG.info(systemPropsToLog);
      }
    }

    initAndStartAppMaster(appMaster, conf);

  } catch (Throwable t) {
    LOG.error("Error starting DAGAppMaster", t);
    System.exit(1);
  }
}

org.apache.hadoop.yarn.YarnUncaughtExceptionHandler Java Examples