Example usage for org.apache.hadoop.yarn.api ApplicationConstants LOG_DIR_EXPANSION_VAR

List of usage examples for org.apache.hadoop.yarn.api ApplicationConstants LOG_DIR_EXPANSION_VAR

Introduction

In this page you can find the example usage for org.apache.hadoop.yarn.api ApplicationConstants LOG_DIR_EXPANSION_VAR.

Prototype

String LOG_DIR_EXPANSION_VAR

To view the source code for org.apache.hadoop.yarn.api ApplicationConstants LOG_DIR_EXPANSION_VAR.

Click Source Link

Document

The temporary environmental variable for container log directory.

Usage

From source file:timo.yarn_app_call_java_daemon.Client.java

License:Apache License

/**
 * Main run function for the client/*from   www .j  ava 2  s.  c o m*/
 * 
 * @return true if application completed successfully
 * @throws IOException
 * @throws YarnException
 */
public boolean run() throws IOException, YarnException {

    LOG.info("Running Client");
    yarnClient.start();

    YarnClusterMetrics clusterMetrics = yarnClient.getYarnClusterMetrics();
    LOG.info("Got Cluster metric info from ASM" + ", numNodeManagers=" + clusterMetrics.getNumNodeManagers());

    List<NodeReport> clusterNodeReports = yarnClient.getNodeReports(NodeState.RUNNING);
    LOG.info("Got Cluster node info from ASM");
    for (NodeReport node : clusterNodeReports) {
        LOG.info("Got node report from ASM for" + ", nodeId=" + node.getNodeId() + ", nodeAddress"
                + node.getHttpAddress() + ", nodeRackName" + node.getRackName() + ", nodeNumContainers"
                + node.getNumContainers());
    }

    QueueInfo queueInfo = yarnClient.getQueueInfo(this.amQueue);
    LOG.info("Queue info" + ", queueName=" + queueInfo.getQueueName() + ", queueCurrentCapacity="
            + queueInfo.getCurrentCapacity() + ", queueMaxCapacity=" + queueInfo.getMaximumCapacity()
            + ", queueApplicationCount=" + queueInfo.getApplications().size() + ", queueChildQueueCount="
            + queueInfo.getChildQueues().size());

    List<QueueUserACLInfo> listAclInfo = yarnClient.getQueueAclsInfo();
    for (QueueUserACLInfo aclInfo : listAclInfo) {
        for (QueueACL userAcl : aclInfo.getUserAcls()) {
            LOG.info("User ACL Info for Queue" + ", queueName=" + aclInfo.getQueueName() + ", userAcl="
                    + userAcl.name());
        }
    }

    if (domainId != null && domainId.length() > 0 && toCreateDomain) {
        prepareTimelineDomain();
    }

    // Get a new application id
    YarnClientApplication app = yarnClient.createApplication();
    GetNewApplicationResponse appResponse = app.getNewApplicationResponse();

    int maxMem = appResponse.getMaximumResourceCapability().getMemory();
    LOG.info("Max mem capabililty of resources in this cluster " + maxMem);

    // A resource ask cannot exceed the max. 
    if (amMemory > maxMem) {
        LOG.info("AM memory specified above max threshold of cluster. Using max value." + ", specified="
                + amMemory + ", max=" + maxMem);
        amMemory = maxMem;
    }

    int maxVCores = appResponse.getMaximumResourceCapability().getVirtualCores();
    LOG.info("Max virtual cores capabililty of resources in this cluster " + maxVCores);

    if (amVCores > maxVCores) {
        LOG.info("AM virtual cores specified above max threshold of cluster. " + "Using max value."
                + ", specified=" + amVCores + ", max=" + maxVCores);
        amVCores = maxVCores;
    }

    // set the application name
    ApplicationSubmissionContext appContext = app.getApplicationSubmissionContext();
    ApplicationId appId = appContext.getApplicationId();

    appContext.setKeepContainersAcrossApplicationAttempts(keepContainers);
    appContext.setApplicationName(Constants.APP_NAME);

    if (attemptFailuresValidityInterval >= 0) {
        appContext.setAttemptFailuresValidityInterval(attemptFailuresValidityInterval);
    }

    // set local resources for the application master
    // local files or archives as needed
    // In this scenario, the jar file for the application master is part of the local resources         
    Map<String, LocalResource> localResources = new HashMap<String, LocalResource>();

    LOG.info("Copy App Master jar from local filesystem and add to local environment");
    // Copy the application master jar to the filesystem 
    // Create a local resource to point to the destination jar path 
    FileSystem fs = FileSystem.get(conf);
    addToLocalResources(fs, appMasterJar, Constants.AM_JAR_NAME, appId.toString(), localResources, null);

    // Set the log4j properties if needed 
    if (!log4jPropFile.isEmpty()) {
        addToLocalResources(fs, log4jPropFile, Constants.LOG4J_PATH, appId.toString(), localResources, null);
    }

    // Set the necessary security tokens as needed
    //amContainer.setContainerTokens(containerToken);

    // Set the env variables to be setup in the env where the application master will be run
    LOG.info("Set the environment for the application master");
    Map<String, String> env = new HashMap<String, String>();

    // Add AppMaster.jar location to classpath       
    // At some point we should not be required to add 
    // the hadoop specific classpaths to the env. 
    // It should be provided out of the box. 
    // For now setting all required classpaths including
    // the classpath to "." for the application jar
    StringBuilder classPathEnv = new StringBuilder(Environment.CLASSPATH.$$())
            .append(ApplicationConstants.CLASS_PATH_SEPARATOR).append("./*");
    for (String c : conf.getStrings(YarnConfiguration.YARN_APPLICATION_CLASSPATH,
            YarnConfiguration.DEFAULT_YARN_CROSS_PLATFORM_APPLICATION_CLASSPATH)) {
        classPathEnv.append(ApplicationConstants.CLASS_PATH_SEPARATOR);
        classPathEnv.append(c.trim());
    }
    classPathEnv.append(ApplicationConstants.CLASS_PATH_SEPARATOR).append("./log4j.properties");

    // add the runtime classpath needed for tests to work
    if (conf.getBoolean(YarnConfiguration.IS_MINI_YARN_CLUSTER, false)) {
        classPathEnv.append(':');
        classPathEnv.append(System.getProperty("java.class.path"));
    }

    env.put("CLASSPATH", classPathEnv.toString());

    // Set the necessary command to execute the application master 
    Vector<CharSequence> vargs = new Vector<CharSequence>(30);

    // Set java executable command 
    LOG.info("Setting up app master command");
    vargs.add(Environment.JAVA_HOME.$$() + "/bin/java");
    // Set Xmx based on am memory size
    vargs.add("-Xmx" + amMemory + "m");
    // Set class name 
    vargs.add(appMasterMainClass);
    // Set params for Application Master
    vargs.add("--container_memory " + String.valueOf(containerMemory));
    vargs.add("--container_vcores " + String.valueOf(containerVirtualCores));
    vargs.add("--num_containers " + String.valueOf(numContainers));

    if (null != nodeLabelExpression) {
        appContext.setNodeLabelExpression(nodeLabelExpression);
    }

    if (debugFlag) {
        vargs.add("--debug");
    }

    vargs.add("1>" + ApplicationConstants.LOG_DIR_EXPANSION_VAR + "/AppMaster.stdout");
    vargs.add("2>" + ApplicationConstants.LOG_DIR_EXPANSION_VAR + "/AppMaster.stderr");

    // Get final commmand
    StringBuilder command = new StringBuilder();
    for (CharSequence str : vargs) {
        command.append(str).append(" ");
    }

    LOG.info("Completed setting up app master command " + command.toString());
    List<String> commands = new ArrayList<String>();
    commands.add(command.toString());

    // Set up the container launch context for the application master
    ContainerLaunchContext amContainer = ContainerLaunchContext.newInstance(localResources, env, commands, null,
            null, null);

    // Set up resource type requirements
    // For now, both memory and vcores are supported, so we set memory and 
    // vcores requirements
    Resource capability = Resource.newInstance(amMemory, amVCores);
    appContext.setResource(capability);

    // Service data is a binary blob that can be passed to the application
    // Not needed in this scenario
    // amContainer.setServiceData(serviceData);

    // Setup security tokens
    if (UserGroupInformation.isSecurityEnabled()) {
        // Note: Credentials class is marked as LimitedPrivate for HDFS and MapReduce
        Credentials credentials = new Credentials();
        String tokenRenewer = conf.get(YarnConfiguration.RM_PRINCIPAL);
        if (tokenRenewer == null || tokenRenewer.length() == 0) {
            throw new IOException("Can't get Master Kerberos principal for the RM to use as renewer");
        }

        // For now, only getting tokens for the default file-system.
        final Token<?> tokens[] = fs.addDelegationTokens(tokenRenewer, credentials);
        if (tokens != null) {
            for (Token<?> token : tokens) {
                LOG.info("Got dt for " + fs.getUri() + "; " + token);
            }
        }
        DataOutputBuffer dob = new DataOutputBuffer();
        credentials.writeTokenStorageToStream(dob);
        ByteBuffer fsTokens = ByteBuffer.wrap(dob.getData(), 0, dob.getLength());
        amContainer.setTokens(fsTokens);
    }

    appContext.setAMContainerSpec(amContainer);

    // Set the priority for the application master
    Priority pri = Priority.newInstance(amPriority);
    appContext.setPriority(pri);

    // Set the queue to which this application is to be submitted in the RM
    appContext.setQueue(amQueue);

    // Submit the application to the applications manager
    // SubmitApplicationResponse submitResp = applicationsManager.submitApplication(appRequest);
    // Ignore the response as either a valid response object is returned on success 
    // or an exception thrown to denote some form of a failure
    LOG.info("Submitting application to ASM");

    yarnClient.submitApplication(appContext);

    // Monitor the application
    return monitorApplication(appId);
}

From source file:x10.x10rt.yarn.Client.java

License:Open Source License

public void run() throws IOException, YarnException {
    yarnClient.start();//from  ww w .  ja  v  a 2s .co m
    YarnClusterMetrics clusterMetrics = yarnClient.getYarnClusterMetrics();

    // print out cluster information
    LOG.info("Got Cluster metric info from ASM, numNodeManagers=" + clusterMetrics.getNumNodeManagers());
    List<NodeReport> clusterNodeReports = yarnClient.getNodeReports(NodeState.RUNNING);
    LOG.info("Got Cluster node info from ASM");
    for (NodeReport node : clusterNodeReports) {
        LOG.info("Got node report from ASM for" + ", nodeId=" + node.getNodeId() + ", nodeAddress"
                + node.getHttpAddress() + ", nodeRackName" + node.getRackName() + ", nodeNumContainers"
                + node.getNumContainers());
    }
    QueueInfo queueInfo = yarnClient.getQueueInfo(this.amQueue);
    LOG.info("Queue info" + ", queueName=" + queueInfo.getQueueName() + ", queueCurrentCapacity="
            + queueInfo.getCurrentCapacity() + ", queueMaxCapacity=" + queueInfo.getMaximumCapacity()
            + ", queueApplicationCount=" + queueInfo.getApplications().size() + ", queueChildQueueCount="
            + queueInfo.getChildQueues().size());
    List<QueueUserACLInfo> listAclInfo = yarnClient.getQueueAclsInfo();
    for (QueueUserACLInfo aclInfo : listAclInfo) {
        for (QueueACL userAcl : aclInfo.getUserAcls()) {
            LOG.info("User ACL Info for Queue" + ", queueName=" + aclInfo.getQueueName() + ", userAcl="
                    + userAcl.name());
        }
    }

    // Get a new application id
    YarnClientApplication app = yarnClient.createApplication();
    GetNewApplicationResponse appResponse = app.getNewApplicationResponse();

    int maxMem = appResponse.getMaximumResourceCapability().getMemory();
    LOG.info("Max mem capabililty of resources in this cluster " + maxMem);

    int maxVCores = appResponse.getMaximumResourceCapability().getVirtualCores();
    LOG.info("Max virtual cores capabililty of resources in this cluster " + maxVCores);

    // set the application name
    ApplicationSubmissionContext appContext = app.getApplicationSubmissionContext();
    final ApplicationId appId = appContext.getApplicationId();
    appContext.setKeepContainersAcrossApplicationAttempts(false);
    appContext.setApplicationName(appName);

    Map<String, LocalResource> localResources = new HashMap<String, LocalResource>();
    LOG.info("Copy App Master jar from local filesystem and add to local environment");
    // Copy the application master jar to the filesystem
    // Create a local resource to point to the destination jar path
    FileSystem fs = FileSystem.get(conf);
    StringBuilder x10jars = new StringBuilder();

    boolean isNative = Boolean.getBoolean(ApplicationMaster.X10_YARN_NATIVE);
    String[] jarfiles = classPath.split(":");
    // upload jar files
    for (String jar : jarfiles) {
        if (jar.endsWith(".jar")) {
            String nopath = jar.substring(jar.lastIndexOf('/') + 1);
            LOG.info("Uploading " + nopath + " to " + fs.getUri());
            x10jars.append(addToLocalResources(fs, jar, nopath, appId.toString(), localResources, null));
            if (isNative) {
                // add the user's program.
                LOG.info("Uploading application " + appName + " to " + fs.getUri());
                x10jars.append(':');
                x10jars.append(addToLocalResources(fs, args[mainClassArg], appName, appId.toString(),
                        localResources, null));
                break; // no other jar files are needed beyond the one holding ApplicationMaster, which is the first one
            } else
                x10jars.append(':');
        }
    }

    StringBuilder uploadedFiles = new StringBuilder();

    // upload any files specified via -upload argument to the x10 script
    String upload = System.getProperty(ApplicationMaster.X10_YARNUPLOAD);
    if (upload != null) {
        String[] files = upload.split(",");
        for (String file : files) {
            String nopath = file.substring(file.lastIndexOf('/') + 1);
            LOG.info("Uploading file " + nopath + " to " + fs.getUri());
            uploadedFiles.append(addToLocalResources(fs, file, nopath, appId.toString(), localResources, null));
            uploadedFiles.append(',');
        }
    }

    LOG.info("Set the environment for the application master");
    Map<String, String> env = new HashMap<String, String>();
    //env.putAll(System.getenv()); // copy all environment variables from the client side to the application side
    // copy over existing environment variables
    for (String key : System.getenv().keySet()) {
        if (!key.startsWith("BASH_FUNC_") && !key.equals("LS_COLORS")) // skip some
            env.put(ApplicationMaster.X10YARNENV_ + key, System.getenv(key));
    }
    String places = System.getenv(ApplicationMaster.X10_NPLACES);
    env.put(ApplicationMaster.X10_NPLACES, (places == null) ? "1" : places);
    String cores = System.getenv(ApplicationMaster.X10_NTHREADS);
    env.put(ApplicationMaster.X10_NTHREADS, (cores == null) ? "0" : cores);
    env.put(ApplicationMaster.X10_HDFS_JARS, x10jars.toString());

    // At some point we should not be required to add
    // the hadoop specific classpaths to the env.
    // It should be provided out of the box.
    // For now setting all required classpaths including
    // the classpath to "." for the application jar
    StringBuilder classPathEnv = new StringBuilder(Environment.CLASSPATH.$$())
            .append(ApplicationConstants.CLASS_PATH_SEPARATOR).append("./*");
    for (String c : conf.getStrings(YarnConfiguration.YARN_APPLICATION_CLASSPATH,
            YarnConfiguration.DEFAULT_YARN_CROSS_PLATFORM_APPLICATION_CLASSPATH)) {
        classPathEnv.append(ApplicationConstants.CLASS_PATH_SEPARATOR);
        classPathEnv.append(c.trim());
    }
    env.put("CLASSPATH", classPathEnv.toString());

    LOG.info("Completed setting up the ApplicationManager environment " + env.toString());

    // Set the necessary command to execute the application master
    Vector<CharSequence> vargs = new Vector<CharSequence>(this.args.length + 30);
    // Set java executable command
    LOG.info("Setting up app master command");
    vargs.add(Environment.JAVA_HOME.$$() + "/bin/java");
    // Set Xmx based on am memory size
    vargs.add("-Xmx" + amMemory + "m");
    // propigate the native flag
    if (isNative)
        vargs.add("-DX10_YARN_NATIVE=true");
    if (upload != null)
        vargs.add("-D" + ApplicationMaster.X10_YARNUPLOAD + "=" + uploadedFiles.toString());

    vargs.add("-D" + ApplicationMaster.X10_YARN_MAIN + "=" + appName);
    vargs.add("-Dorg.apache.commons.logging.simplelog.showdatetime=true");
    // Set class name
    vargs.add(appMasterMainClass);

    // add java arguments
    for (int i = 0; i < mainClassArg; i++) {
        if (i != classPathArg) // skip the classpath, as it gets reworked
            vargs.add(args[i]);
    }
    // add our own main class wrapper
    if (!isNative)
        vargs.add(X10MainRunner.class.getName());
    // add remaining application command line arguments
    for (int i = mainClassArg; i < args.length; i++)
        vargs.add(args[i]);

    vargs.add("1>" + ApplicationConstants.LOG_DIR_EXPANSION_VAR + "/AppMaster.stdout");
    vargs.add("2>" + ApplicationConstants.LOG_DIR_EXPANSION_VAR + "/AppMaster.stderr");
    // Get final commmand
    StringBuilder command = new StringBuilder();
    for (CharSequence str : vargs) {
        command.append(str).append(" ");
    }
    LOG.info("Completed setting up app master command " + command.toString());
    List<String> commands = new ArrayList<String>();
    commands.add(command.toString());

    // Set up the container launch context for the application master
    ContainerLaunchContext amContainer = ContainerLaunchContext.newInstance(localResources, env, commands, null,
            null, null);
    // Set up resource type requirements
    // For now, both memory and vcores are supported, so we set memory and
    // vcores requirements
    Resource capability = Resource.newInstance(amMemory, amVCores);
    appContext.setResource(capability);

    appContext.setAMContainerSpec(amContainer);

    // kill the application if the user hits ctrl-c
    Runtime.getRuntime().addShutdownHook(new Thread(new Runnable() {
        @Override
        public void run() {
            System.out.println();
            System.out.println("Exiting...");
            forceKillApplication(appId);
        }
    }));

    LOG.info("Submitting application to ASM");
    yarnClient.submitApplication(appContext);

    // Monitor the application
    monitorApplication(appId);

    // delete jar files uploaded earlier
    cleanupLocalResources(fs, appId.toString());
}

From source file:yarnkit.container.AppmasterContainerLaunchParameters.java

License:Apache License

@Override
public List<String> getCommands() {
    /* @formatter:off */
    String cmd = Environment.JAVA_HOME.$() + "/bin/java" + " -server -Xmx512M"
            + " -Dlog4j.configuration=yarnkit/log4j.properties" + " " + YARNKIT_APPMASTER_CLASS + " -D "
            + KEY_APP_CONFIG_FILENAME + "=" + APP_CONFIG_FILENAME + " 1>"
            + ApplicationConstants.LOG_DIR_EXPANSION_VAR + "/stdout" + " 2>"
            + ApplicationConstants.LOG_DIR_EXPANSION_VAR + "/stderr";
    /* @formatter:on */
    return Collections.singletonList(cmd);
}

From source file:yrun.YarnRunner.java

License:Apache License

public void execute() throws IOException, YarnException, InterruptedException {
    LOG.info("Using application path [" + _installPath + "]");
    Path jarPath = installThisJar(_installPath, _appJarFile);
    LOG.info("Driver installed [" + jarPath + "]");
    List<Path> installedArchivePathList = install(_installPath, _archivePathList);
    for (Path p : installedArchivePathList) {
        LOG.info("Archive installed [" + p + "]");
    }//  ww w. j a  v  a 2 s.c om

    YarnRunnerArgs yarnRunnerArgs = new YarnRunnerArgs();
    yarnRunnerArgs.setCommand(_command);

    Path argsPath = installThisArgs(_installPath, yarnRunnerArgs);

    final YarnClient client = YarnClient.createYarnClient();
    _configuration.setInt("yarn.nodemanager.delete.debug-delay-sec", (int) TimeUnit.HOURS.toSeconds(1));
    client.init(_configuration);
    client.start();

    YarnClientApplication app = client.createApplication();
    ContainerLaunchContext amContainer = Records.newRecord(ContainerLaunchContext.class);

    Map<String, String> appMasterEnv = new HashMap<String, String>();
    setupAppMasterEnv(appMasterEnv, _appJarFile);

    Map<String, LocalResource> localResources = new HashMap<String, LocalResource>();
    {
        LocalResource appMasterJar = Records.newRecord(LocalResource.class);
        setupAppMasterJar(jarPath, appMasterJar);
        localResources.put(jarPath.getName(), appMasterJar);
    }
    {
        LocalResource appMasterArgs = Records.newRecord(LocalResource.class);
        setupAppMasterArgs(argsPath, appMasterArgs);
        localResources.put(MASTER_JSON, appMasterArgs);
    }

    List<String> vargs = new ArrayList<String>();
    vargs.add(Environment.JAVA_HOME.$() + "/bin/java");
    vargs.add("-Xmx256m");
    vargs.add("-Djava.net.preferIPv4Stack=true");
    vargs.add(YarnRunnerApplicationMaster.class.getName());

    String strCommand = "(echo ENV && set && echo CURRENT_DIR_LISTING && ls -la && echo PWD && pwd && ("
            + StringUtils.join(" ", vargs) + "))";
    strCommand += " 1>" + ApplicationConstants.LOG_DIR_EXPANSION_VAR + "/stdout";
    strCommand += " 2>" + ApplicationConstants.LOG_DIR_EXPANSION_VAR + "/stderr";
    LOG.debug("Application Master command [" + strCommand + "]");

    amContainer.setCommands(Collections.singletonList(strCommand));
    amContainer.setLocalResources(localResources);
    amContainer.setEnvironment(appMasterEnv);

    Resource capability = Records.newRecord(Resource.class);
    capability.setMemory(256);
    capability.setVirtualCores(1);

    ApplicationSubmissionContext appContext = app.getApplicationSubmissionContext();
    appContext.setApplicationName(_yarnName);
    appContext.setAMContainerSpec(amContainer);
    appContext.setResource(capability);
    if (_queue != null) {
        appContext.setQueue(_queue);
    }
    appContext.setApplicationType("yrun");

    ApplicationId appId = appContext.getApplicationId();
    AtomicBoolean shutdown = new AtomicBoolean();
    if (!_isDaemon) {
        addShutdownHook(client, appId, shutdown);
    }

    LOG.info("Submitting application with id [" + appId + "]");
    client.submitApplication(appContext);
    ApplicationReport report;
    YarnApplicationState state;
    do {
        report = client.getApplicationReport(appId);
        state = report.getYarnApplicationState();
        if (state == YarnApplicationState.RUNNING) {
            if (_isDaemon) {
                LOG.info("Application is running.  This is a daemon application driver program exiting.");
                return;
            }
        }
        Thread.sleep(100);
    } while (isNoLongerRunning(state));
    shutdown.set(true);
    LOG.info("Application has finished with state [" + state + "]");
}

From source file:yrun.YarnRunnerApplicationMaster.java

License:Apache License

public void run(String[] args) throws Exception {
    JsonParser parser = new JsonParser();
    JsonElement element = parser.parse(new FileReader(YarnRunner.MASTER_JSON));

    LOG.info("Json [" + element + "]");

    JsonObject jsonObject = (JsonObject) element;
    int priority = jsonObject.get("priority").getAsInt();
    int numberOfContainers = jsonObject.get("numberOfContainers").getAsInt();
    int memory = jsonObject.get("memory").getAsInt();
    int vCores = jsonObject.get("vCores").getAsInt();
    String command = jsonObject.get("command").getAsString();

    // startHttpServer();
    // InetSocketAddress address = _server.getAddress();
    // LOG.info("Http server started at [" + address + "]");

    // String appHostName = "app-host-name";
    // int appHostPort = address.getPort();
    // String appTrackingUrl = "http://" + address.getHostName() + ":" +
    // appHostPort + "/";
    // LOG.info("App Tracking Url [" + appTrackingUrl + "]");

    // Initialize clients to ResourceManager and NodeManagers
    Configuration conf = new YarnConfiguration();

    AMRMClient<ContainerRequest> rmClient = AMRMClient.createAMRMClient();
    rmClient.init(conf);/*from   w  w w .  j a v  a 2  s  .  c o  m*/
    rmClient.start();

    NMClient nmClient = NMClient.createNMClient();
    nmClient.init(conf);
    nmClient.start();

    // Register with ResourceManager
    LOG.info("Register Application Master 0");
    String appHostName = "";
    int appHostPort = 0;
    String appTrackingUrl = "";
    rmClient.registerApplicationMaster(appHostName, appHostPort, appTrackingUrl);
    LOG.info("Register Application Master 1");

    // Priority for worker containers - priorities are intra-application
    Priority priorityRecord = Records.newRecord(Priority.class);
    priorityRecord.setPriority(priority);

    // Resource requirements for worker containers
    Resource capability = Records.newRecord(Resource.class);
    capability.setMemory(memory);
    capability.setVirtualCores(vCores);

    // Make container requests to ResourceManager
    for (int i = 0; i < numberOfContainers; ++i) {
        ContainerRequest containerAsk = new ContainerRequest(capability, null, null, priorityRecord);
        LOG.info("Making resource request for [" + i + "]");
        rmClient.addContainerRequest(containerAsk);
    }

    // Obtain allocated containers, launch and check for responses
    int responseId = 0;
    int completedContainers = 0;
    long lastReport = 0;

    List<Container> containers = new ArrayList<Container>();

    while (completedContainers < numberOfContainers) {
        if (lastReport + TimeUnit.SECONDS.toNanos(5) < System.nanoTime()) {
            for (Container container : containers) {
                ContainerId containerId = container.getId();
                NodeId nodeId = container.getNodeId();
                ContainerStatus containerStatus = nmClient.getContainerStatus(containerId, nodeId);
                LOG.info("NodeId [" + nodeId + "] Container Status [" + containerStatus + "]");

                // Figure out

            }
            lastReport = System.nanoTime();
        }

        AllocateResponse response = rmClient.allocate(responseId++);
        for (Container container : response.getAllocatedContainers()) {
            containers.add(container);
            // Launch container by create ContainerLaunchContext
            ContainerLaunchContext ctx = Records.newRecord(ContainerLaunchContext.class);
            ctx.setCommands(
                    Collections.singletonList(command + " 1>" + ApplicationConstants.LOG_DIR_EXPANSION_VAR
                            + "/stdout2" + " 2>" + ApplicationConstants.LOG_DIR_EXPANSION_VAR + "/stderr"));
            LOG.info("Launching container " + container.getId());
            nmClient.startContainer(container, ctx);
        }

        for (ContainerStatus status : response.getCompletedContainersStatuses()) {
            completedContainers++;
            LOG.info("Completed container " + status.getContainerId());
        }
        Thread.sleep(100);
    }
    // _server.stop(0);
    // Un-register with ResourceManager
    rmClient.unregisterApplicationMaster(FinalApplicationStatus.SUCCEEDED, "", "");
}