Examples of org.apache.hadoop.util.Daemon$DaemonFactory

org.apache.hadoop.util.Daemon
Provide a factory for named daemon threads, for use in ExecutorServices constructors

    final File tmpDir = sd.getFinalizedTmp();
    // rename previous to tmp
    rename(prevDir, tmpDir);


    // delete tmp dir in a separate thread
    new Daemon(new Runnable() {
        public void run() {
          try {
            deleteDir(tmpDir);
          } catch(IOException ex) {
            LOG.error("Finalize upgrade for " + dataDirPath + " failed.", ex);

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      // write data chunk header
      if (!finalized) {
        BlockMetadataHeader.writeHeader(checksumOut, checksum);
      }
      if (clientName.length() > 0) {
        responder = new Daemon(datanode.threadGroup, 
                               new PacketResponder(this, block, mirrIn, 
                                                   replyOut, numTargets,
                                                   Thread.currentThread()));
        responder.start(); // start thread to processes reponses
      }

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  public void run() {
    while (datanode.shouldRun) {
      try {
        Socket s = ss.accept();
        
        new Daemon(datanode.threadGroup, 
            new DataXceiver(s, datanode, this)).start();
        InjectionHandler.processEvent(
            InjectionEvent.AVATARXEIVER_RUNTIME_FAILURE);
      } catch (SocketTimeoutException ignored) {
        // wake up to see if should continue to run

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      }
      leaseManager.startMonitor();
      startSecretManagerIfNecessary();


      //ResourceMonitor required only at ActiveNN. See HDFS-2914
      this.nnrmthread = new Daemon(new NameNodeResourceMonitor());
      nnrmthread.start();
    } finally {
      writeUnlock();
    }
  }

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        return;
      }
      // start monitor
      reached = now();
      if (smmthread == null) {
        smmthread = new Daemon(new SafeModeMonitor());
        smmthread.start();
        reportStatus("STATE* Safe mode extension entered.", true);
      }


      // check if we are ready to initialize replication queues

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    return staleInterval;
  }
  
  void activate(final Configuration conf) {
    final DecommissionManager dm = new DecommissionManager(namesystem, blockManager);
    this.decommissionthread = new Daemon(dm.new Monitor(
        conf.getInt(DFSConfigKeys.DFS_NAMENODE_DECOMMISSION_INTERVAL_KEY, 
                    DFSConfigKeys.DFS_NAMENODE_DECOMMISSION_INTERVAL_DEFAULT),
        conf.getInt(DFSConfigKeys.DFS_NAMENODE_DECOMMISSION_NODES_PER_INTERVAL_KEY, 
                    DFSConfigKeys.DFS_NAMENODE_DECOMMISSION_NODES_PER_INTERVAL_DEFAULT)));
    decommissionthread.start();

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    streamingAddr = new InetSocketAddress(ss.getInetAddress().getHostAddress(),
                                     ss.getLocalPort());


    LOG.info("Opened streaming server at " + streamingAddr);
    this.threadGroup = new ThreadGroup("dataXceiverServer");
    this.dataXceiverServer = new Daemon(threadGroup, 
        new DataXceiverServer(ss, conf, this));
    this.threadGroup.setDaemon(true); // auto destroy when empty
  }

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        }
        LOG.info(bpReg + " Starting thread to transfer block " + 
                 block + " to " + xfersBuilder);                       
      }


      new Daemon(new DataTransfer(xferTargets, block,
          BlockConstructionStage.PIPELINE_SETUP_CREATE, "")).start();
    }
  }

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  public Daemon recoverBlocks(
      final String who,
      final Collection<RecoveringBlock> blocks) {
    
    Daemon d = new Daemon(threadGroup, new Runnable() {
      /** Recover a list of blocks. It is run by the primary datanode. */
      @Override
      public void run() {
        for(RecoveringBlock b : blocks) {
          try {
            logRecoverBlock(who, b);
            recoverBlock(b);
          } catch (IOException e) {
            LOG.warn("recoverBlocks FAILED: " + b, e);
          }
        }
      }
    });
    d.start();
    return d;
  }

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      }
      leaseManager.startMonitor();
      startSecretManagerIfNecessary();


      //ResourceMonitor required only at ActiveNN. See HDFS-2914
      this.nnrmthread = new Daemon(new NameNodeResourceMonitor());
      nnrmthread.start();
    } finally {
      writeUnlock();
    }
  }

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Related Classes of org.apache.hadoop.util.Daemon$DaemonFactory

io.fabric8.hadoop.hdfs.SecondaryNameNodeFactory

io.fabric8.hadoop.mapred.TaskTrackerFactory

org.apache.hadoop.corona.SessionDriver

org.apache.hadoop.dfs.BlockCrcUpgradeObjectNamenode

org.apache.hadoop.dfs.DataStorage

org.apache.hadoop.dfs.SecondaryNameNode

org.apache.hadoop.dfs.UpgradeManagerDatanode

org.apache.hadoop.hdfs.DFSClient$BlockLocationRenewal

org.apache.hadoop.hdfs.DFSClient$LeaseChecker

org.apache.hadoop.hdfs.LeaseRenewer

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