Package org.apache.hadoop.hdfs.server.common.HdfsConstants

Examples of org.apache.hadoop.hdfs.server.common.HdfsConstants.StartupOption

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  public static NameNode createNameNode(String argv[],
                                 Configuration conf) throws IOException {
    if (conf == null)
      conf = new Configuration();
    StartupOption startOpt = parseArguments(argv);
    if (startOpt == null) {
      printUsage();
      return null;
    }
    setStartupOption(conf, startOpt);
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                       DatanodeProtocol.versionID,
                       nameNodeAddr,
                       conf);
    // get version and id info from the name-node
    NamespaceInfo nsInfo = handshake();
    StartupOption startOpt = getStartupOption(conf);
    assert startOpt != null : "Startup option must be set.";
   
    boolean simulatedFSDataset =
        conf.getBoolean("dfs.datanode.simulateddatastorage", false);
    if (simulatedFSDataset) {
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   * @return false if passed argements are incorrect
   */
  private static boolean parseArguments(String args[],
                                        Configuration conf) {
    int argsLen = (args == null) ? 0 : args.length;
    StartupOption startOpt = StartupOption.REGULAR;
    for(int i=0; i < argsLen; i++) {
      String cmd = args[i];
      if ("-r".equalsIgnoreCase(cmd) || "--rack".equalsIgnoreCase(cmd)) {
        LOG.error("-r, --rack arguments are not supported anymore. RackID " +
            "resolution is handled by the NameNode.");
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  }

  private static StartupOption parseArguments(String args[],
                                              Configuration conf) {
    int argsLen = (args == null) ? 0 : args.length;
    StartupOption startOpt = StartupOption.REGULAR;
    for(int i=0; i < argsLen; i++) {
      String cmd = args[i];
      if (StartupOption.FORMAT.getName().equalsIgnoreCase(cmd)) {
        startOpt = StartupOption.FORMAT;
      } else if (StartupOption.REGULAR.getName().equalsIgnoreCase(cmd)) {
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  public static NameNode createNameNode(String argv[],
                                 Configuration conf) throws IOException {
    if (conf == null)
      conf = new Configuration();
    StartupOption startOpt = parseArguments(argv, conf);
    if (startOpt == null) {
      printUsage();
      return null;
    }
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    this.localMachine = nn.getNameNodeAddress().getHostName();
    this.port = nn.getNameNodeAddress().getPort();
    this.registerMBean(conf); // register the MBean for the FSNamesystemStutus
    this.dir = new FSDirectory(this, conf);
    StartupOption startOpt = NameNode.getStartupOption(conf);
    this.dir.loadFSImage(getNamespaceDirs(conf),
                         getNamespaceEditsDirs(conf), startOpt);
    long timeTakenToLoadFSImage = now() - systemStart;
    LOG.info("Finished loading FSImage in " + timeTakenToLoadFSImage + " msecs");
    NameNode.getNameNodeMetrics().fsImageLoadTime.set(
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                       DatanodeProtocol.versionID,
                       nameNodeAddr,
                       conf);
    // get version and id info from the name-node
    NamespaceInfo nsInfo = handshake();
    StartupOption startOpt = getStartupOption(conf);
    assert startOpt != null : "Startup option must be set.";
   
    boolean simulatedFSDataset =
        conf.getBoolean("dfs.datanode.simulateddatastorage", false);
    if (simulatedFSDataset) {
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   * @return false if passed argements are incorrect
   */
  private static boolean parseArguments(String args[],
                                        Configuration conf) {
    int argsLen = (args == null) ? 0 : args.length;
    StartupOption startOpt = StartupOption.REGULAR;
    for(int i=0; i < argsLen; i++) {
      String cmd = args[i];
      if ("-r".equalsIgnoreCase(cmd) || "--rack".equalsIgnoreCase(cmd)) {
        LOG.error("-r, --rack arguments are not supported anymore. RackID " +
            "resolution is handled by the NameNode.");
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        " [ " + StartupOption.FORCE.getName() + " ] ]");
  }

  private static StartupOption parseArguments(String args[]) {
    int argsLen = (args == null) ? 0 : args.length;
    StartupOption startOpt = StartupOption.REGULAR;
    for(int i=0; i < argsLen; i++) {
      String cmd = args[i];
      if (StartupOption.FORMAT.getName().equalsIgnoreCase(cmd)) {
        startOpt = StartupOption.FORMAT;
        // check if there are other options
        for (i = i + 1; i < argsLen; i++) {
          if (args[i].equalsIgnoreCase(StartupOption.FORCE.getName())) {
            startOpt.setConfirmationNeeded(false);
          }
          if (args[i].equalsIgnoreCase(StartupOption.NONINTERACTIVE.getName())) {
            startOpt.setInteractive(false);
          }
        }
      } else if (StartupOption.REGULAR.getName().equalsIgnoreCase(cmd)) {
        startOpt = StartupOption.REGULAR;
      } else if (StartupOption.UPGRADE.getName().equalsIgnoreCase(cmd)) {
        startOpt = StartupOption.UPGRADE;
      } else if (StartupOption.RECOVER.getName().equalsIgnoreCase(cmd)) {
        if (startOpt != StartupOption.REGULAR) {
          throw new RuntimeException("Can't combine -recover with " +
              "other startup options.");
        }
        startOpt = StartupOption.RECOVER;
        while (++i < argsLen) {
          if (args[i].equalsIgnoreCase(
                StartupOption.FORCE.getName())) {
            startOpt.setForce(MetaRecoveryContext.FORCE_FIRST_CHOICE);
          } else {
            throw new RuntimeException("Error parsing recovery options: " +
              "can't understand option \"" + args[i] + "\"");
          }
        }
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  public static NameNode createNameNode(String argv[],
                                 Configuration conf) throws IOException {
    if (conf == null)
      conf = new Configuration();
    StartupOption startOpt = parseArguments(argv);
    if (startOpt == null) {
      printUsage();
      System.exit(-2);
    }
    setStartupOption(conf, startOpt);

    switch (startOpt) {
      case FORMAT:
        boolean aborted = format(conf, startOpt.getConfirmationNeeded(),
            startOpt.getInteractive());
        System.exit(aborted ? 1 : 0);
      case FINALIZE:
        aborted = finalize(conf, true);
        System.exit(aborted ? 1 : 0);
      case RECOVER:
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