Example usage for org.apache.hadoop.fs FileSystem getUri

List of usage examples for org.apache.hadoop.fs FileSystem getUri

Introduction

In this page you can find the example usage for org.apache.hadoop.fs FileSystem getUri.

Prototype

public abstract URI getUri();

Source Link

Document

Returns a URI which identifies this FileSystem.

Usage

From source file:org.commoncrawl.mapred.ec2.parser.OutputCommitter.java

License:Open Source License

@Override
public boolean needsTaskCommit(TaskAttemptContext context) throws IOException {
    LOG.info("COMMITTER- Needs Commit Called on:" + context.getTaskAttemptID().toString());
    try {//from  w ww  .  ja  va2  s.  c  o  m
        Path taskOutputPath = getTempTaskOutputPath(context);
        if (taskOutputPath != null) {
            context.getProgressible().progress();
            FileSystem fs = FileSystem.get(context.getJobConf());
            LOG.info("COMMITTER - Default FS is:" + fs.getUri());
            // Get the file-system for the task output directory
            FileSystem fsFromPath = taskOutputPath.getFileSystem(context.getJobConf());
            // since task output path is created on demand, 
            // if it exists, task needs a commit
            LOG.info("COMMITTER - Checking if outputPath Exists:" + taskOutputPath + " for task:"
                    + context.getTaskAttemptID().toString());
            if (fs.exists(taskOutputPath)) {
                LOG.info("Needs Commit Returning TRUE");
                return true;
            }
        }
    } catch (IOException ioe) {
        throw ioe;
    }
    LOG.info("COMMITTER Needs Commit Returning FALSE");
    return false;
}

From source file:org.commoncrawl.mapred.ec2.postprocess.crawldb.LinkGraphDataEmitterJob.java

License:Open Source License

public LinkGraphDataEmitterJob(Configuration conf) throws Exception {
    FileSystem fs = FileSystem.get(new URI("s3n://aws-publicdatasets"), conf);
    LOG.info("FileSystem is:" + fs.getUri() + " Scanning for valid segments");
    SortedSet<Long> validSegments = scanForValidSegments(fs);
    LOG.info("There are: " + validSegments.size() + " valid segments. Scanning for Merged Segments");
    SortedSet<Long> mergedSegments = scanForMergedSegments(fs);
    LOG.info("There are: " + mergedSegments.size() + " merged Segments");
    // calculate difference 
    Set<Long> segmentsToProcess = Sets.difference(validSegments, mergedSegments);
    LOG.info("There are: " + segmentsToProcess.size() + " Segments that need to be merged");
    // ok we are ready to go .. 
    //int iteration = 0;
    for (long segmentId : segmentsToProcess) {
        LOG.info("Queueing Segment:" + segmentId + " for Merge");
        queue(fs, conf, segmentId);/*from  ww w .  jav  a 2s  .  c o  m*/
    }
    // queue shutdown items 
    for (int i = 0; i < MAX_SIMULTANEOUS_JOBS; ++i) {
        _queue.put(new QueueItem());
    }
}

From source file:org.commoncrawl.mapred.ec2.postprocess.linkCollector.LinkCollectorJob.java

License:Open Source License

public LinkCollectorJob(Configuration conf) throws Exception {
    FileSystem fs = FileSystem.get(new URI("s3n://aws-publicdatasets"), conf);
    LOG.info("FileSystem is:" + fs.getUri() + " Scanning for valid segments");
    SortedSet<Long> validSegments = scanForValidSegments(fs);
    LOG.info("There are: " + validSegments.size() + " valid segments. Scanning for Merged Segments");
    SortedSet<Long> mergedSegments = scanForMergedSegments(fs);
    LOG.info("There are: " + mergedSegments.size() + " merged Segments");
    // calculate difference 
    Set<Long> segmentsToProcess = Sets.difference(validSegments, mergedSegments);
    LOG.info("There are: " + segmentsToProcess.size() + " Segments that need to be merged");
    // ok we are ready to go .. 
    int iteration = 0;
    for (long segmentId : segmentsToProcess) {
        LOG.info("Queueing Segment:" + segmentId + " for Merge");
        queue(fs, conf, segmentId);//from   ww  w .ja  va  2s.c om
    }
    // queue shutdown items 
    for (int i = 0; i < MAX_SIMULTANEOUS_JOBS; ++i) {
        _queue.put(new QueueItem());
    }
}

From source file:org.commoncrawl.mapred.ec2.postprocess.linkCollector.LinkGraphDataEmitterJob.java

License:Open Source License

public LinkGraphDataEmitterJob(Configuration conf) throws Exception {
    FileSystem fs = FileSystem.get(new URI("s3n://aws-publicdatasets"), conf);
    LOG.info("FileSystem is:" + fs.getUri() + " Scanning for valid segments");
    SortedSet<Long> validSegments = scanForValidSegments(fs);
    LOG.info("There are: " + validSegments.size() + " valid segments. Scanning for Merged Segments");
    SortedSet<Long> mergedSegments = scanForMergedSegments(fs);
    LOG.info("There are: " + mergedSegments.size() + " merged Segments");
    // calculate difference 
    Set<Long> segmentsToProcess = Sets.difference(validSegments, mergedSegments);
    LOG.info("There are: " + segmentsToProcess.size() + " Segments that need to be merged");
    // ok we are ready to go .. 
    int iteration = 0;
    for (long segmentId : segmentsToProcess) {
        LOG.info("Queueing Segment:" + segmentId + " for Merge");
        queue(fs, conf, segmentId);/*from   w ww  .  j  a  v a 2s  .c o  m*/
    }
    // queue shutdown items 
    for (int i = 0; i < MAX_SIMULTANEOUS_JOBS; ++i) {
        _queue.put(new QueueItem());
    }
}

From source file:org.conan.myhadoop02.mr.yarntest.Client.java

License:Apache License

/**
 * Main run function for the client/*  w w  w. j  a v  a 2 s.  co  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();
    // TODO get min/max resource capabilities from RM and change memory ask if needed
    // If we do not have min/max, we may not be able to correctly request
    // the required resources from the RM for the app master
    // Memory ask has to be a multiple of min and less than max.
    // Dump out information about cluster capability as seen by the resource manager
    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(appName);

    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, appMasterJarPath, appId.toString(), localResources, null);

    // Set the log4j properties if needed
    if (!log4jPropFile.isEmpty()) {
        addToLocalResources(fs, log4jPropFile, log4jPath, appId.toString(), localResources, null);
    }

    // The shell script has to be made available on the final container(s)
    // where it will be executed.
    // To do this, we need to first copy into the filesystem that is visible
    // to the yarn framework.
    // We do not need to set this as a local resource for the application
    // master as the application master does not need it.
    String hdfsShellScriptLocation = "";
    long hdfsShellScriptLen = 0;
    long hdfsShellScriptTimestamp = 0;
    if (!shellScriptPath.isEmpty()) {
        Path shellSrc = new Path(shellScriptPath);
        String shellPathSuffix = appName + "/" + appId.toString() + "/" + SCRIPT_PATH;
        Path shellDst = new Path(fs.getHomeDirectory(), shellPathSuffix);
        fs.copyFromLocalFile(false, true, shellSrc, shellDst);
        hdfsShellScriptLocation = shellDst.toUri().toString();
        FileStatus shellFileStatus = fs.getFileStatus(shellDst);
        hdfsShellScriptLen = shellFileStatus.getLen();
        hdfsShellScriptTimestamp = shellFileStatus.getModificationTime();
    }

    if (!shellCommand.isEmpty()) {
        addToLocalResources(fs, null, shellCommandPath, appId.toString(), localResources, shellCommand);
    }

    if (shellArgs.length > 0) {
        addToLocalResources(fs, null, shellArgsPath, appId.toString(), localResources,
                StringUtils.join(shellArgs, " "));
    }

    // 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>();

    // put location of shell script into env
    // using the env info, the application master will create the correct local resource for the
    // eventual containers that will be launched to execute the shell scripts
    env.put(DSConstants.DISTRIBUTEDSHELLSCRIPTLOCATION, hdfsShellScriptLocation);
    env.put(DSConstants.DISTRIBUTEDSHELLSCRIPTTIMESTAMP, Long.toString(hdfsShellScriptTimestamp));
    env.put(DSConstants.DISTRIBUTEDSHELLSCRIPTLEN, Long.toString(hdfsShellScriptLen));
    if (domainId != null && domainId.length() > 0) {
        env.put(DSConstants.DISTRIBUTEDSHELLTIMELINEDOMAIN, domainId);
    }

    // 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);
    }
    vargs.add("--priority " + String.valueOf(shellCmdPriority));

    for (Map.Entry<String, String> entry : shellEnv.entrySet()) {
        vargs.add("--shell_env " + entry.getKey() + "=" + entry.getValue());
    }
    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
    // TODO - what is the range for priority? how to decide?
    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);

    // TODO
    // Try submitting the same request again
    // app submission failure?

    // Monitor the application
    return monitorApplication(appId);

}

From source file:org.datanucleus.test.BaseTest.java

License:Open Source License

@BeforeClass
public static void beforeClass() throws Exception {
    conf = new HBaseConfiguration();
    dfsCluster = new MiniDFSCluster(conf, 2, true, (String[]) null);

    // mangle the conf so that the fs parameter points to the minidfs we
    // just started up
    final FileSystem filesystem = dfsCluster.getFileSystem();
    conf.set("fs.default.name", filesystem.getUri().toString());
    final Path parentdir = filesystem.getHomeDirectory();
    conf.set(HConstants.HBASE_DIR, parentdir.toString());
    filesystem.mkdirs(parentdir);/* ww w  .j a v a 2 s  . com*/
    FSUtils.setVersion(filesystem, parentdir);

    preHBaseClusterSetup();
    hBaseClusterSetup();
    postHBaseClusterSetup();

    pm.set(PMF.get().getPersistenceManager());

}

From source file:org.deeplearning4j.iterativereduce.runtime.yarn.client.Client.java

License:Apache License

/**
 * TODO: consider the scenarios where we dont get enough containers 
 * - we need to re-submit the job till we get the containers alloc'd
 * //from  w w w .j a  v  a 2 s .  com
 */
@Override
public int run(String[] args) throws Exception {

    //System.out.println("IR: Client.run() [start]");

    if (args.length < 1)
        LOG.info("No configuration file specified, using default (" + ConfigFields.DEFAULT_CONFIG_FILE + ")");

    long startTime = System.currentTimeMillis();
    String configFile = (args.length < 1) ? ConfigFields.DEFAULT_CONFIG_FILE : args[0];
    Properties props = new Properties();
    Configuration conf = getConf();

    try {
        FileInputStream fis = new FileInputStream(configFile);
        props.load(fis);
    } catch (FileNotFoundException ex) {
        throw ex; // TODO: be nice
    } catch (IOException ex) {
        throw ex; // TODO: be nice
    }

    // Make sure we have some bare minimums
    ConfigFields.validateConfig(props);

    if (LOG.isDebugEnabled()) {
        LOG.debug("Loaded configuration: ");
        for (Map.Entry<Object, Object> entry : props.entrySet()) {
            LOG.debug(entry.getKey() + "=" + entry.getValue());
        }
    }

    // TODO: make sure input file(s), libs, etc. actually exist!
    // Ensure our input path exists

    Path p = new Path(props.getProperty(ConfigFields.APP_INPUT_PATH));
    FileSystem fs = FileSystem.get(conf);

    if (!fs.exists(p))
        throw new FileNotFoundException("Input path not found: " + p.toString() + " (in " + fs.getUri() + ")");

    LOG.info("Using input path: " + p.toString());

    // Connect
    ResourceManagerHandler rmHandler = new ResourceManagerHandler(conf, null);
    rmHandler.getClientResourceManager();

    // Create an Application request/ID
    ApplicationId appId = rmHandler.getApplicationId(); // Our AppId
    String appName = props.getProperty(ConfigFields.APP_NAME, ConfigFields.DEFAULT_APP_NAME).replace(' ', '_');

    LOG.info("Got an application, id=" + appId + ", appName=" + appName);

    // Copy resources to [HD]FS
    LOG.debug("Copying resources to filesystem");
    Utils.copyLocalResourcesToFs(props, conf, appId, appName); // Local resources
    Utils.copyLocalResourceToFs(configFile, ConfigFields.APP_CONFIG_FILE, conf, appId, appName); // Config file

    try {
        Utils.copyLocalResourceToFs("log4j.properties", "log4j.properties", conf, appId, appName); // Log4j
    } catch (FileNotFoundException ex) {
        LOG.warn("log4j.properties file not found");
    }

    // Create our context
    List<String> commands = Utils.getMasterCommand(conf, props);
    Map<String, LocalResource> localResources = Utils.getLocalResourcesForApplication(conf, appId, appName,
            props, LocalResourceVisibility.APPLICATION);

    // Submit app
    rmHandler.submitApplication(appId, appName, Utils.getEnvironment(conf, props), localResources, commands,
            Integer.parseInt(props.getProperty(ConfigFields.YARN_MEMORY, "512")));

    /*
     * TODO:
     * - look at updating this code region to make sure job is submitted!
     * 
     */

    StopWatch watch = new StopWatch();
    watch.start();

    // Wait for app to complete
    while (true) {
        Thread.sleep(2000);

        ApplicationReport report = rmHandler.getApplicationReport(appId);
        LOG.info("IterativeReduce report: " + " appId=" + appId.getId() + ", state: "
                + report.getYarnApplicationState().toString() + ", Running Time: " + watch.toString());

        //report.getDiagnostics()

        if (YarnApplicationState.FINISHED == report.getYarnApplicationState()) {
            LOG.info("Application finished in " + (System.currentTimeMillis() - startTime) + "ms");

            if (FinalApplicationStatus.SUCCEEDED == report.getFinalApplicationStatus()) {
                LOG.info("Application completed succesfully.");
                return 0;
            } else {
                LOG.info("Application completed with en error: " + report.getDiagnostics());
                return -1;
            }
        } else if (YarnApplicationState.FAILED == report.getYarnApplicationState()
                || YarnApplicationState.KILLED == report.getYarnApplicationState()) {

            LOG.info("Application completed with a failed or killed state: " + report.getDiagnostics());
            return -1;
        }

    }

}

From source file:org.dknight.app.Client.java

License:Apache License

/**
 * Main run function for the client/*from  w w  w  . j av a 2  s  .co 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());
        }
    }

    // Get a new application id
    YarnClientApplication app = yarnClient.createApplication();
    GetNewApplicationResponse appResponse = app.getNewApplicationResponse();
    // TODO get min/max resource capabilities from RM and change memory ask if needed
    // If we do not have min/max, we may not be able to correctly request 
    // the required resources from the RM for the app master
    // Memory ask has to be a multiple of min and less than max. 
    // Dump out information about cluster capability as seen by the resource manager
    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;
    }

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

    // Set up the container launch context for the application master
    ContainerLaunchContext amContainer = Records.newRecord(ContainerLaunchContext.class);

    // 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);
    Path src = new Path(appMasterJar);
    String pathSuffix = appName + "/" + appId.getId() + "/AppMaster.jar";
    Path dst = new Path(fs.getHomeDirectory(), pathSuffix);
    fs.copyFromLocalFile(false, true, src, dst);
    FileStatus destStatus = fs.getFileStatus(dst);
    LocalResource amJarRsrc = Records.newRecord(LocalResource.class);

    // Set the type of resource - file or archive
    // archives are untarred at destination
    // we don't need the jar file to be untarred for now
    amJarRsrc.setType(LocalResourceType.FILE);
    // Set visibility of the resource 
    // Setting to most private option
    amJarRsrc.setVisibility(LocalResourceVisibility.APPLICATION);
    // Set the resource to be copied over
    amJarRsrc.setResource(ConverterUtils.getYarnUrlFromPath(dst));
    // Set timestamp and length of file so that the framework 
    // can do basic sanity checks for the local resource 
    // after it has been copied over to ensure it is the same 
    // resource the client intended to use with the application
    amJarRsrc.setTimestamp(destStatus.getModificationTime());
    amJarRsrc.setSize(destStatus.getLen());
    localResources.put("AppMaster.jar", amJarRsrc);

    String confXMLFSPath = "";
    {
        File clusterConfXML = new File("cluster-conf.xml");
        conf.writeXml(new FileOutputStream(clusterConfXML));
        Path confSrc = new Path(clusterConfXML.getAbsolutePath());
        String confPathSuffix = appName + "/" + appId.getId() + "/cluster-conf.xml";
        Path confDst = new Path(fs.getHomeDirectory(), confPathSuffix);
        fs.copyFromLocalFile(false, true, confSrc, confDst);
        FileStatus confFileStatus = fs.getFileStatus(confDst);
        LocalResource confRsrc = Records.newRecord(LocalResource.class);
        confRsrc.setType(LocalResourceType.FILE);
        confRsrc.setVisibility(LocalResourceVisibility.APPLICATION);
        confRsrc.setResource(ConverterUtils.getYarnUrlFromURI(confDst.toUri()));
        confRsrc.setSize(confFileStatus.getLen());
        confRsrc.setTimestamp(confFileStatus.getModificationTime());
        localResources.put("cluster-conf.xml", confRsrc);
        confXMLFSPath = confDst.toUri().getPath();
    }

    // Set the log4j properties if needed 
    if (!log4jPropFile.isEmpty()) {
        Path log4jSrc = new Path(log4jPropFile);
        Path log4jDst = new Path(fs.getHomeDirectory(), "log4j.props");
        fs.copyFromLocalFile(false, true, log4jSrc, log4jDst);
        FileStatus log4jFileStatus = fs.getFileStatus(log4jDst);
        LocalResource log4jRsrc = Records.newRecord(LocalResource.class);
        log4jRsrc.setType(LocalResourceType.FILE);
        log4jRsrc.setVisibility(LocalResourceVisibility.APPLICATION);
        log4jRsrc.setResource(ConverterUtils.getYarnUrlFromURI(log4jDst.toUri()));
        log4jRsrc.setTimestamp(log4jFileStatus.getModificationTime());
        log4jRsrc.setSize(log4jFileStatus.getLen());
        localResources.put("log4j.properties", log4jRsrc);
    }

    // The shell script has to be made available on the final container(s)
    // where it will be executed. 
    // To do this, we need to first copy into the filesystem that is visible 
    // to the yarn framework. 
    // We do not need to set this as a local resource for the application 
    // master as the application master does not need it.       
    String hdfsShellScriptLocation = "";
    long hdfsShellScriptLen = 0;
    long hdfsShellScriptTimestamp = 0;
    if (!shellScriptPath.isEmpty()) {
        Path shellSrc = new Path(shellScriptPath);
        String shellPathSuffix = appName + "/" + appId.getId() + "/ExecShellScript.sh";
        Path shellDst = new Path(fs.getHomeDirectory(), shellPathSuffix);
        fs.copyFromLocalFile(false, true, shellSrc, shellDst);
        hdfsShellScriptLocation = shellDst.toUri().toString();
        FileStatus shellFileStatus = fs.getFileStatus(shellDst);
        hdfsShellScriptLen = shellFileStatus.getLen();
        hdfsShellScriptTimestamp = shellFileStatus.getModificationTime();
    }

    // Set local resource info into app master container launch context
    amContainer.setLocalResources(localResources);

    // 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>();

    // put location of shell script into env
    // using the env info, the application master will create the correct local resource for the 
    // eventual containers that will be launched to execute the shell scripts
    env.put(DSConstants.DISTRIBUTEDSHELLSCRIPTLOCATION, hdfsShellScriptLocation);
    env.put(DSConstants.DISTRIBUTEDSHELLSCRIPTTIMESTAMP, Long.toString(hdfsShellScriptTimestamp));
    env.put(DSConstants.DISTRIBUTEDSHELLSCRIPTLEN, Long.toString(hdfsShellScriptLen));
    env.put(DSConstants.CLUSTER_CONF_XML_PATH, confXMLFSPath);

    // 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(File.pathSeparatorChar)
            .append("./*");
    for (String c : conf.getStrings(YarnConfiguration.YARN_APPLICATION_CLASSPATH,
            YarnConfiguration.DEFAULT_YARN_APPLICATION_CLASSPATH)) {
        classPathEnv.append(File.pathSeparatorChar);
        classPathEnv.append(c.trim());
    }
    classPathEnv.append(File.pathSeparatorChar).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());

    amContainer.setEnvironment(env);

    // 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");
    //      if (debugFlag) {
    //          vargs.add("-Xdebug -Xrunjdwp:transport=dt_socket,address=9998,server=y,suspend=y");
    //      }
    // Set class name 
    vargs.add(appMasterMainClass);
    // Set params for Application Master
    vargs.add("--container_memory " + String.valueOf(containerMemory));
    vargs.add("--num_containers " + String.valueOf(numContainers));
    vargs.add("--priority " + String.valueOf(shellCmdPriority));
    if (!shellCommand.isEmpty()) {
        vargs.add("--shell_command " + shellCommand + "");
    }
    if (!shellArgs.isEmpty()) {
        vargs.add("--shell_args " + shellArgs + "");
    }
    for (Map.Entry<String, String> entry : shellEnv.entrySet()) {
        vargs.add("--shell_env " + entry.getKey() + "=" + entry.getValue());
    }
    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());
    amContainer.setCommands(commands);

    // Set up resource type requirements
    // For now, only memory is supported so we set memory requirements
    Resource capability = Records.newRecord(Resource.class);
    capability.setMemory(amMemory);
    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()) {
        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 = Records.newRecord(Priority.class);
    // TODO - what is the range for priority? how to decide? 
    pri.setPriority(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);

    // TODO
    // Try submitting the same request again
    // app submission failure?

    // Monitor the application
    return monitorApplication(appId);

}

From source file:org.dutir.lucene.io.HadoopUtility.java

License:Mozilla Public License

protected static void saveApplicationSetupToJob(JobConf jobConf, boolean getFreshProperties) throws Exception {
    // Do we load a fresh properties File?
    //TODO fix, if necessary
    //if (getFreshProperties)
    //   loadApplicationSetup(new Path(ApplicationSetup.TERRIER_HOME));

    FileSystem remoteFS = FileSystem.get(jobConf);
    URI remoteFSURI = remoteFS.getUri();
    //make a copy of the current application setup properties, these may be amended
    //as some files are more globally accessible
    final Properties propertiesDuringJob = new Properties();
    Properties appProperties = ApplicationSetup.getProperties();
    for (Object _key : appProperties.keySet()) {
        String key = (String) _key;
        propertiesDuringJob.put(key, appProperties.get(key));
    }/* ww  w.j  a  v a 2 s . c om*/

    //the share folder is needed during indexing, save this on DFS
    if (Files.getFileSystemName(ApplicationSetup.LUCENE_SHARE).equals("local")) {
        Path tempTRShare = makeTemporaryFile(jobConf, "terrier.share");
        propertiesDuringJob.setProperty("terrier.share", remoteFSURI.resolve(tempTRShare.toUri()).toString());
        logger.info("Copying terrier share/ directory to shared storage area ("
                + remoteFSURI.resolve(tempTRShare.toUri()).toString() + ")");
        FileUtil.copy(FileSystem.getLocal(jobConf), new Path(ApplicationSetup.LUCENE_SHARE), remoteFS,
                tempTRShare, false, false, jobConf);
    }

    //copy the terrier.properties content over
    Path tempTRProperties = makeTemporaryFile(jobConf, "terrier.properties");
    logger.debug("Writing terrier properties out to DFS " + tempTRProperties.toString());
    OutputStream out = remoteFS.create(tempTRProperties);
    remoteFS.deleteOnExit(tempTRProperties);
    propertiesDuringJob.store(out, "Automatically generated by HadoopPlugin.saveApplicationSetupToJob()");
    out.close();
    out = null;
    DistributedCache.addCacheFile(tempTRProperties.toUri().resolve(new URI("#terrier.properties")), jobConf);
    DistributedCache.createSymlink(jobConf);

    //copy the non-JVM system properties over as well
    Path tempSysProperties = makeTemporaryFile(jobConf, "system.properties");
    DataOutputStream dos = FileSystem.get(jobConf).create(tempSysProperties);
    logger.debug("Writing system properties out to DFS " + tempSysProperties.toString());
    for (Object _propertyKey : System.getProperties().keySet()) {
        String propertyKey = (String) _propertyKey;
        if (!startsWithAny(propertyKey, checkSystemProperties)) {
            dos.writeUTF(propertyKey);
            dos.writeUTF(System.getProperty(propertyKey));
        }
    }
    dos.writeUTF("FIN");
    dos.close();
    dos = null;
    DistributedCache.addCacheFile(tempSysProperties.toUri().resolve(new URI("#system.properties")), jobConf);
}

From source file:org.elasticsearch.plugin.hadoop.hdfs.MiniHDFSCluster.java

License:Apache License

@SuppressForbidden(reason = "Hadoop is messy")
public static void main(String[] args) throws Exception {
    FileUtil.fullyDelete(new File(System.getProperty("test.build.data", "build/test/data"), "dfs/"));
    // MiniHadoopClusterManager.main(new String[] { "-nomr" });
    Configuration cfg = new Configuration();
    cfg.set(DataNode.DATA_DIR_PERMISSION_KEY, "666");
    cfg.set("dfs.replication", "0");
    MiniDFSCluster dfsCluster = new MiniDFSCluster(cfg, 1, true, null);
    FileSystem fs = dfsCluster.getFileSystem();
    System.out.println(fs.getClass());
    System.out.println(fs.getUri());
    System.out.println(dfsCluster.getHftpFileSystem().getClass());

    // dfsCluster.shutdown();
}