Example usage for org.apache.hadoop.fs FileStatus getModificationTime

List of usage examples for org.apache.hadoop.fs FileStatus getModificationTime

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Introduction

In this page you can find the example usage for org.apache.hadoop.fs FileStatus getModificationTime.

Prototype

public long getModificationTime()

Source Link

Document

Get the modification time of the file.

Usage

From source file:tachyon.yarn.Client.java

License:Apache License

private void setupAppMasterJar(LocalResource appMasterJar) throws IOException {
    Path jarHdfsPath = new Path(mAppMasterJarHdfs); // known path to jar file on HDFS
    FileStatus jarStat = FileSystem.get(mYarnConf).getFileStatus(jarHdfsPath);
    appMasterJar.setResource(ConverterUtils.getYarnUrlFromPath(jarHdfsPath));
    appMasterJar.setSize(jarStat.getLen());
    appMasterJar.setTimestamp(jarStat.getModificationTime());
    appMasterJar.setType(LocalResourceType.FILE);
    appMasterJar.setVisibility(LocalResourceVisibility.PUBLIC);
}

From source file:tachyon.yarn.Utils.java

License:Apache License

/**
 * Creates a local resource for a file on HDFS.
 *
 * @param yarnConf YARN configuration/*w  ww.  ja  v  a 2  s .  c  o  m*/
 * @param resourcePath known path of resource file on HDFS
 * @throws IOException if the file can not be found on HDFS
 */
public static LocalResource createLocalResourceOfFile(YarnConfiguration yarnConf, String resourcePath)
        throws IOException {
    LocalResource localResource = Records.newRecord(LocalResource.class);

    Path jarHdfsPath = new Path(resourcePath);
    FileStatus jarStat = FileSystem.get(yarnConf).getFileStatus(jarHdfsPath);
    localResource.setResource(ConverterUtils.getYarnUrlFromPath(jarHdfsPath));
    localResource.setSize(jarStat.getLen());
    localResource.setTimestamp(jarStat.getModificationTime());
    localResource.setType(LocalResourceType.FILE);
    localResource.setVisibility(LocalResourceVisibility.PUBLIC);
    return localResource;
}

From source file:terasort.utils.Utils.java

License:Apache License

public static LocalResource createLocalResource(FileSystem fs, Path file) throws IOException {
    final LocalResourceType type = LocalResourceType.FILE;
    final LocalResourceVisibility visibility = LocalResourceVisibility.APPLICATION;
    FileStatus fstat = fs.getFileStatus(file);
    org.apache.hadoop.yarn.api.records.URL resourceURL = ConverterUtils.getYarnUrlFromPath(file);
    long resourceSize = fstat.getLen();
    long resourceModificationTime = fstat.getModificationTime();
    LocalResource lr = Records.newRecord(LocalResource.class);
    lr.setResource(resourceURL);//from www  . ja v a  2 s  . c  om
    lr.setType(type);
    lr.setSize(resourceSize);
    lr.setVisibility(visibility);
    lr.setTimestamp(resourceModificationTime);
    return lr;
}

From source file:test.anna.dshell.Client.java

License:Apache License

/**
 * Main run function for the client//w  w w  .  ja va2 s . com
 * @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;
    }

    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);

    // 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);
    System.out.println("CLIENT>>> copy the " + appMasterJar + " to " + appMasterJarPath + " in container 0.");

    // 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));

    // 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));
    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:timo.yarn_app_call_java_app.Client.java

License:Apache License

private void addToLocalResources(FileSystem fs, String fileSrcPath, String fileDstPath, String appId,
        Map<String, LocalResource> localResources, String resources) throws IOException {
    String suffix = Constants.APP_NAME + "/" + appId + "/" + fileDstPath;
    Path dst = new Path(fs.getHomeDirectory(), suffix);
    if (fileSrcPath == null) {
        FSDataOutputStream ostream = null;
        try {/* w  ww .jav  a  2 s  .  c  o m*/
            ostream = FileSystem.create(fs, dst, new FsPermission((short) 0710));
            ostream.writeUTF(resources);
        } finally {
            IOUtils.closeQuietly(ostream);
        }
    } else {
        fs.copyFromLocalFile(new Path(fileSrcPath), dst);
    }
    FileStatus scFileStatus = fs.getFileStatus(dst);
    LocalResource scRsrc = LocalResource.newInstance(ConverterUtils.getYarnUrlFromURI(dst.toUri()),
            LocalResourceType.FILE, LocalResourceVisibility.APPLICATION, scFileStatus.getLen(),
            scFileStatus.getModificationTime());
    localResources.put(fileDstPath, scRsrc);
}

From source file:timo.yarn_app_call_java_daemon.Client.java

License:Apache License

/**
 * addToLocalResources/*from w  ww  . ja  va  2s . c  o  m*/
 * 
 * @param fs
 * @param fileSrcPath
 * @param fileDstPath
 * @param appId
 * @param localResources
 * @param resources
 * @throws IOException
 */
private void addToLocalResources(FileSystem fs, String fileSrcPath, String fileDstPath, String appId,
        Map<String, LocalResource> localResources, String resources) throws IOException {
    String suffix = Constants.APP_NAME + "/" + appId + "/" + fileDstPath;
    Path dst = new Path(fs.getHomeDirectory(), suffix);
    if (fileSrcPath == null) {
        FSDataOutputStream ostream = null;
        try {
            ostream = FileSystem.create(fs, dst, new FsPermission((short) 0710));
            ostream.writeUTF(resources);
        } finally {
            IOUtils.closeQuietly(ostream);
        }
    } else {
        fs.copyFromLocalFile(new Path(fileSrcPath), dst);
    }
    FileStatus scFileStatus = fs.getFileStatus(dst);
    LocalResource scRsrc = LocalResource.newInstance(ConverterUtils.getYarnUrlFromURI(dst.toUri()),
            LocalResourceType.FILE, LocalResourceVisibility.APPLICATION, scFileStatus.getLen(),
            scFileStatus.getModificationTime());
    localResources.put(fileDstPath, scRsrc);
}

From source file:wanggang1987.bigdataapi.hadoopapi.HadoopClientAPI.java

/**
 * ???../*from   w  w w. j av  a2s.c o m*/
 */
public void getLocation() {
    try {
        Path f = new Path("/user/xxx/input02/file01");
        FileStatus fileStatus = fs.getFileStatus(f);

        BlockLocation[] blkLocations = fs.getFileBlockLocations(fileStatus, 0, fileStatus.getLen());
        for (BlockLocation currentLocation : blkLocations) {
            String[] hosts = currentLocation.getHosts();
            for (String host : hosts) {
                System.out.println(host);
            }
        }

        //??
        long modifyTime = fileStatus.getModificationTime();
        Date d = new Date(modifyTime);
        System.out.println(d);
    } catch (IllegalArgumentException | IOException e) {
        logger.error("ERROR", e);
    }
}

From source file:wherehows.AvroFileAnalyzer.java

License:Open Source License

@Override
public DatasetJsonRecord getSchema(Path targetFilePath) throws IOException {
    System.out.println("avro file path : " + targetFilePath.toUri().getPath());

    SeekableInput sin = new FsInput(targetFilePath, fs.getConf());
    DataFileReader<GenericRecord> reader = new DataFileReader<GenericRecord>(sin,
            new GenericDatumReader<GenericRecord>());
    String codec = reader.getMetaString("avro.codec");
    long record_count = reader.getBlockCount();

    String schemaString = reader.getSchema().toString();
    String storage = STORAGE_TYPE;
    String abstractPath = targetFilePath.toUri().getPath();

    FileStatus fstat = fs.getFileStatus(targetFilePath);
    DatasetJsonRecord datasetJsonRecord = new DatasetJsonRecord(schemaString, abstractPath,
            fstat.getModificationTime(), fstat.getOwner(), fstat.getGroup(), fstat.getPermission().toString(),
            codec, storage, "");
    reader.close();/*from   w ww. j  av  a  2s .co  m*/
    sin.close();
    return datasetJsonRecord;
}

From source file:wherehows.OrcFileAnalyzer.java

License:Open Source License

@Override
public DatasetJsonRecord getSchema(Path targetFilePath) throws IOException {
    Reader orcReader = OrcFile.createReader(fs, targetFilePath);
    String codec = String.valueOf(orcReader.getCompression());
    String schemaString = orcReader.getObjectInspector().getTypeName();
    String storage = STORAGE_TYPE;
    String abstractPath = targetFilePath.toUri().getPath();

    FileStatus fstat = fs.getFileStatus(targetFilePath);
    DatasetJsonRecord datasetJsonRecord = new DatasetJsonRecord(schemaString, abstractPath,
            fstat.getModificationTime(), fstat.getOwner(), fstat.getGroup(), fstat.getPermission().toString(),
            codec, storage, "");

    return datasetJsonRecord;
}

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

License:Open Source License

private String addToLocalResources(FileSystem fs, String fileSrcPath, String fileDstPath, String appId,
        Map<String, LocalResource> localResources, String resources) throws IOException {
    String suffix = appName + "/" + appId + "/" + fileDstPath;
    Path dst = new Path(fs.getHomeDirectory(), suffix);
    if (fileSrcPath == null) {
        FSDataOutputStream ostream = null;
        try {/*from w w  w  . j  a  v  a 2  s  . co m*/
            ostream = FileSystem.create(fs, dst, new FsPermission((short) 0710));
            ostream.writeUTF(resources);
        } finally {
            IOUtils.closeQuietly(ostream);
        }
    } else {
        fs.copyFromLocalFile(new Path(fileSrcPath), dst);
    }
    FileStatus scFileStatus = fs.getFileStatus(dst);
    LocalResource scRsrc = LocalResource.newInstance(ConverterUtils.getYarnUrlFromURI(dst.toUri()),
            LocalResourceType.FILE, LocalResourceVisibility.APPLICATION, scFileStatus.getLen(),
            scFileStatus.getModificationTime());
    localResources.put(fileDstPath, scRsrc);
    return ("/user/" + System.getProperty("user.name") + '/' + suffix);
}