Examples of org.apache.hadoop.http.HttpServer$StackServlet

org.apache.hadoop.http.HttpServer
A very simple servlet to serve up a text representation of the current stack traces. It both returns the stacks to the caller and logs them. Currently the stack traces are done sequentially rather than exactly the same data.

    initializationPoller.setDaemon(true);
    initializationPoller.start();


    if (taskTrackerManager instanceof JobTracker) {
      JobTracker jobTracker = (JobTracker) taskTrackerManager;
      HttpServer infoServer = jobTracker.infoServer;
      infoServer.setAttribute("scheduler", this);
      infoServer.addServlet("scheduler", "/scheduler",
          CapacitySchedulerServlet.class);
    }


    started = true;
    LOG.info("Capacity scheduler initialized " + queueNames.size() + " queues");

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    //create a servlet to serve full-file content
    InetSocketAddress infoSocAddr = DataNode.getInfoAddr(conf);
    String infoHost = infoSocAddr.getHostName();
    int tmpInfoPort = infoSocAddr.getPort();
    this.infoServer = (secureResources == null) 
       ? new HttpServer("datanode", infoHost, tmpInfoPort, tmpInfoPort == 0, 
           conf, SecurityUtil.getAdminAcls(conf, DFSConfigKeys.DFS_ADMIN))
       : new HttpServer("datanode", infoHost, tmpInfoPort, tmpInfoPort == 0,
           conf, SecurityUtil.getAdminAcls(conf, DFSConfigKeys.DFS_ADMIN),
           secureResources.getListener());
    if (conf.getBoolean("dfs.https.enable", false)) {
      boolean needClientAuth = conf.getBoolean("dfs.https.need.client.auth", false);
      InetSocketAddress secInfoSocAddr = NetUtils.createSocketAddr(conf.get(

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      this.httpServer = ugi.doAs(new PrivilegedExceptionAction<HttpServer>() {
        @Override
        public HttpServer run() throws IOException, InterruptedException {
          String infoHost = infoSocAddr.getHostName();
          int infoPort = infoSocAddr.getPort();
          httpServer = new HttpServer("hdfs", infoHost, infoPort, 
              infoPort == 0, conf, 
              SecurityUtil.getAdminAcls(conf, DFSConfigKeys.DFS_ADMIN)) {
            {
              // Add SPNEGO support to NameNode
              if (UserGroupInformation.isSecurityEnabled() &&

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  }


  private void initializeHttpWebServer(final InetSocketAddress infoSocAddr)
      throws IOException {
    int tmpInfoPort = infoSocAddr.getPort();
    infoServer = new HttpServer("secondary", infoBindAddress, tmpInfoPort,
                                tmpInfoPort == 0, conf,
                                SecurityUtil.getAdminAcls
                                  (conf, DFSConfigKeys.DFS_ADMIN)) {
        {
          if (UserGroupInformation.isSecurityEnabled()) {

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        public HttpServer run() throws IOException, InterruptedException {
          LOG.info("Starting web server as: " +
              UserGroupInformation.getCurrentUser().getUserName());


          int tmpInfoPort = infoSocAddr.getPort();
          infoServer = new HttpServer("secondary", infoBindAddress, tmpInfoPort,
              tmpInfoPort == 0, conf, 
              SecurityUtil.getAdminAcls(conf, DFSConfigKeys.DFS_ADMIN));
          
          System.setProperty("https.cipherSuites", 
              Krb5AndCertsSslSocketConnector.KRB5_CIPHER_SUITES.get(0));

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                                "tasktracker.http.port",
                                "mapred.task.tracker.http.address");
    InetSocketAddress infoSocAddr = NetUtils.createSocketAddr(infoAddr);
    String httpBindAddress = infoSocAddr.getHostName();
    int httpPort = infoSocAddr.getPort();
    this.server = new HttpServer("task", httpBindAddress, httpPort,
        httpPort == 0, conf, aclsManager.getAdminsAcl());
    workerThreads = conf.getInt("tasktracker.http.threads", 40);
    server.setThreads(1, workerThreads);
    // let the jsp pages get to the task tracker, config, and other relevant
    // objects

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        new UpdateThread().start();
      }
      // Register servlet with JobTracker's Jetty server
      if (taskTrackerManager instanceof JobTracker) {
        JobTracker jobTracker = (JobTracker) taskTrackerManager;
        HttpServer infoServer = jobTracker.infoServer;
        infoServer.setAttribute("scheduler", this);
        infoServer.addServlet("scheduler", "/scheduler",
            FairSchedulerServlet.class);
      }
      
      initMetrics();

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                                "mapred.job.tracker.http.address");
    InetSocketAddress infoSocAddr = NetUtils.createSocketAddr(infoAddr);
    String infoBindAddress = infoSocAddr.getHostName();
    int tmpInfoPort = infoSocAddr.getPort();
    this.startTime = clock.getTime();
    infoServer = new HttpServer("job", infoBindAddress, tmpInfoPort, 
        tmpInfoPort == 0, conf, aclsManager.getAdminsAcl());
    infoServer.setAttribute("job.tracker", this);
    
    infoServer.addServlet("reducegraph", "/taskgraph", TaskGraphServlet.class);
    infoServer.start();

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  }


  public void setUp() throws Exception {
    new File(System.getProperty("build.webapps", "build/webapps") + "/test"
        ).mkdirs();
    server = new HttpServer("test", "0.0.0.0", 0, true);
    server.addServlet("delay", "/delay", DelayServlet.class);
    server.addServlet("jobend", "/jobend", JobEndServlet.class);
    server.addServlet("fail", "/fail", FailServlet.class);
    server.start();
    int port = server.getPort();

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    // Initialize other scheduling parameters from the configuration
    checkpointConf = new CheckpointConf(conf);


    // initialize the webserver for uploading files.
    int tmpInfoPort = infoSocAddr.getPort();
    infoServer = new HttpServer("secondary", infoBindAddress, tmpInfoPort,
                                tmpInfoPort == 0, conf,
                                new AccessControlList(conf.get(DFS_ADMIN, " "))) {
      {
        if (UserGroupInformation.isSecurityEnabled()) {
          initSpnego(

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org.apache.hadoop.conf.Configuration

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org.apache.hadoop.corona.ClusterManager

org.apache.hadoop.hdfs.qjournal.server.JournalNodeHttpServer

org.apache.hadoop.hdfs.server.datanode.DataNode

org.apache.hadoop.hdfs.server.namenode.Checkpointer

org.apache.hadoop.hdfs.server.namenode.FSNamesystem

org.apache.hadoop.hdfs.server.namenode.NameNode

org.apache.hadoop.hdfs.server.namenode.NameNodeHttpServer

org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode

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