Examples of StartupProgressView

org.apache.hadoop.hdfs.server.namenode.startupprogress.StartupProgressView
StartupProgressView is an immutable, consistent, read-only view of namenode startup progress. Callers obtain an instance by calling {@link StartupProgress#createView()} to clone current startup progress state.Subsequent updates to startup progress will not alter the view. This isolates the reader from ongoing updates and establishes a guarantee that the values returned by the view are consistent and unchanging across multiple related read operations. Calculations that require aggregation, such as overall percent complete, will not be impacted by mutations performed in other threads mid-way through the calculation. Methods that return primitive long may return {@link Long#MIN_VALUE} as asentinel value to indicate that the property is undefined.

Examples of org.apache.hadoop.hdfs.server.namenode.startupprogress.StartupProgressView

     * @param prog StartupProgress tracking NameNode startup progress
     * @throws IOException thrown if there is an I/O error
     */
    void generateStartupProgress(JspWriter out, StartupProgress prog)
        throws IOException {
      StartupProgressView view = prog.createView();
      FormattedWriter fout = new FormattedWriter(out);
      fout.println("<div id=\"startupprogress\">");
      fout.println("<div><span>Elapsed Time:</span> %s</div>",
        StringUtils.formatTime(view.getElapsedTime()));
      fout.println("<div><span>Percent Complete:</span> %s</div>",
        StringUtils.formatPercent(view.getPercentComplete(), 2));
      fout.println("<table>");
      fout.println("<tr>");
      fout.println("<th>Phase</th>");
      fout.println("<th>Completion</th>");
      fout.println("<th>Elapsed Time</th>");
      fout.println("</tr>");
      for (Phase phase: view.getPhases()) {
        final String timeClass;
        Status status = view.getStatus(phase);
        if (status == Status.PENDING) {
          timeClass = "later";
        } else if (status == Status.RUNNING) {
          timeClass = "current";
        } else {
          timeClass = "prior";
        }


        fout.println("<tr class=\"phase %s\">", timeClass);
        printPhase(fout, view, phase);
        fout.println("</tr>");


        for (Step step: view.getSteps(phase)) {
          fout.println("<tr class=\"step %s\">", timeClass);
          printStep(fout, view, phase, step);
          fout.println("</tr>");
        }
      }

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Examples of org.apache.hadoop.hdfs.server.namenode.startupprogress.StartupProgressView

     * @param prog StartupProgress tracking NameNode startup progress
     * @throws IOException thrown if there is an I/O error
     */
    void generateStartupProgress(JspWriter out, StartupProgress prog)
        throws IOException {
      StartupProgressView view = prog.createView();
      FormattedWriter fout = new FormattedWriter(out);
      fout.println("<div id=\"startupprogress\">");
      fout.println("<div><span>Elapsed Time:</span> %s</div>",
        StringUtils.formatTime(view.getElapsedTime()));
      fout.println("<div><span>Percent Complete:</span> %s</div>",
        StringUtils.formatPercent(view.getPercentComplete(), 2));
      fout.println("<table>");
      fout.println("<tr>");
      fout.println("<th>Phase</th>");
      fout.println("<th>Completion</th>");
      fout.println("<th>Elapsed Time</th>");
      fout.println("</tr>");
      for (Phase phase: view.getPhases()) {
        final String timeClass;
        Status status = view.getStatus(phase);
        if (status == Status.PENDING) {
          timeClass = "later";
        } else if (status == Status.RUNNING) {
          timeClass = "current";
        } else {
          timeClass = "prior";
        }


        fout.println("<tr class=\"phase %s\">", timeClass);
        printPhase(fout, view, phase);
        fout.println("</tr>");


        for (Step step: view.getSteps(phase)) {
          fout.println("<tr class=\"step %s\">", timeClass);
          printStep(fout, view, phase, step);
          fout.println("</tr>");
        }
      }

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Examples of org.apache.hadoop.hdfs.server.namenode.startupprogress.StartupProgressView

  protected void doGet(HttpServletRequest req, HttpServletResponse resp)
      throws IOException {
    resp.setContentType("application/json; charset=UTF-8");
    StartupProgress prog = NameNodeHttpServer.getStartupProgressFromContext(
      getServletContext());
    StartupProgressView view = prog.createView();
    JsonGenerator json = new JsonFactory().createJsonGenerator(resp.getWriter());
    try {
      json.writeStartObject();
      json.writeNumberField(ELAPSED_TIME, view.getElapsedTime());
      json.writeNumberField(PERCENT_COMPLETE, view.getPercentComplete());
      json.writeArrayFieldStart(PHASES);


      for (Phase phase: view.getPhases()) {
        json.writeStartObject();
        json.writeStringField(NAME, phase.getName());
        json.writeStringField(STATUS, view.getStatus(phase).toString());
        json.writeNumberField(PERCENT_COMPLETE, view.getPercentComplete(phase));
        json.writeNumberField(ELAPSED_TIME, view.getElapsedTime(phase));
        writeStringFieldIfNotNull(json, FILE, view.getFile(phase));
        writeNumberFieldIfDefined(json, SIZE, view.getSize(phase));
        json.writeArrayFieldStart(STEPS);


        for (Step step: view.getSteps(phase)) {
          json.writeStartObject();
          StepType type = step.getType();
          String name = type != null ? type.getName() : null;
          writeStringFieldIfNotNull(json, NAME, name);
          json.writeNumberField(COUNT, view.getCount(phase, step));
          writeStringFieldIfNotNull(json, FILE, step.getFile());
          writeNumberFieldIfDefined(json, SIZE, step.getSize());
          json.writeNumberField(TOTAL, view.getTotal(phase, step));
          json.writeNumberField(PERCENT_COMPLETE, view.getPercentComplete(phase,
            step));
          json.writeNumberField(ELAPSED_TIME, view.getElapsedTime(phase, step));
          json.writeEndObject();
        }


        json.writeEndArray();
        json.writeEndObject();

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Examples of org.apache.hadoop.hdfs.server.namenode.startupprogress.StartupProgressView

     * @param prog StartupProgress tracking NameNode startup progress
     * @throws IOException thrown if there is an I/O error
     */
    void generateStartupProgress(JspWriter out, StartupProgress prog)
        throws IOException {
      StartupProgressView view = prog.createView();
      FormattedWriter fout = new FormattedWriter(out);
      fout.println("<div id=\"startupprogress\">");
      fout.println("<div><span>Elapsed Time:</span> %s</div>",
        StringUtils.formatTime(view.getElapsedTime()));
      fout.println("<div><span>Percent Complete:</span> %s</div>",
        StringUtils.formatPercent(view.getPercentComplete(), 2));
      fout.println("<table>");
      fout.println("<tr>");
      fout.println("<th>Phase</th>");
      fout.println("<th>Completion</th>");
      fout.println("<th>Elapsed Time</th>");
      fout.println("</tr>");
      for (Phase phase: view.getPhases()) {
        final String timeClass;
        Status status = view.getStatus(phase);
        if (status == Status.PENDING) {
          timeClass = "later";
        } else if (status == Status.RUNNING) {
          timeClass = "current";
        } else {
          timeClass = "prior";
        }


        fout.println("<tr class=\"phase %s\">", timeClass);
        printPhase(fout, view, phase);
        fout.println("</tr>");


        for (Step step: view.getSteps(phase)) {
          fout.println("<tr class=\"step %s\">", timeClass);
          printStep(fout, view, phase, step);
          fout.println("</tr>");
        }
      }

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Examples of org.apache.hadoop.hdfs.server.namenode.startupprogress.StartupProgressView

     * @param prog StartupProgress tracking NameNode startup progress
     * @throws IOException thrown if there is an I/O error
     */
    void generateStartupProgress(JspWriter out, StartupProgress prog)
        throws IOException {
      StartupProgressView view = prog.createView();
      FormattedWriter fout = new FormattedWriter(out);
      fout.println("<div id=\"startupprogress\">");
      fout.println("<div><span>Elapsed Time:</span> %s</div>",
        StringUtils.formatTime(view.getElapsedTime()));
      fout.println("<div><span>Percent Complete:</span> %s</div>",
        StringUtils.formatPercent(view.getPercentComplete(), 2));
      fout.println("<table>");
      fout.println("<tr>");
      fout.println("<th>Phase</th>");
      fout.println("<th>Completion</th>");
      fout.println("<th>Elapsed Time</th>");
      fout.println("</tr>");
      for (Phase phase: view.getPhases()) {
        final String timeClass;
        Status status = view.getStatus(phase);
        if (status == Status.PENDING) {
          timeClass = "later";
        } else if (status == Status.RUNNING) {
          timeClass = "current";
        } else {
          timeClass = "prior";
        }


        fout.println("<tr class=\"phase %s\">", timeClass);
        printPhase(fout, view, phase);
        fout.println("</tr>");


        for (Step step: view.getSteps(phase)) {
          fout.println("<tr class=\"step %s\">", timeClass);
          printStep(fout, view, phase, step);
          fout.println("</tr>");
        }
      }

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Examples of org.apache.hadoop.hdfs.server.namenode.startupprogress.StartupProgressView

  protected void doGet(HttpServletRequest req, HttpServletResponse resp)
      throws IOException {
    resp.setContentType("application/json; charset=UTF-8");
    StartupProgress prog = NameNodeHttpServer.getStartupProgressFromContext(
      getServletContext());
    StartupProgressView view = prog.createView();
    JsonGenerator json = new JsonFactory().createJsonGenerator(resp.getWriter());
    try {
      json.writeStartObject();
      json.writeNumberField(ELAPSED_TIME, view.getElapsedTime());
      json.writeNumberField(PERCENT_COMPLETE, view.getPercentComplete());
      json.writeArrayFieldStart(PHASES);


      for (Phase phase: view.getPhases()) {
        json.writeStartObject();
        json.writeStringField(NAME, phase.getName());
        json.writeStringField(DESC, phase.getDescription());
        json.writeStringField(STATUS, view.getStatus(phase).toString());
        json.writeNumberField(PERCENT_COMPLETE, view.getPercentComplete(phase));
        json.writeNumberField(ELAPSED_TIME, view.getElapsedTime(phase));
        writeStringFieldIfNotNull(json, FILE, view.getFile(phase));
        writeNumberFieldIfDefined(json, SIZE, view.getSize(phase));
        json.writeArrayFieldStart(STEPS);


        for (Step step: view.getSteps(phase)) {
          json.writeStartObject();
          StepType type = step.getType();
          if (type != null) {
            json.writeStringField(NAME, type.getName());
            json.writeStringField(DESC, type.getDescription());
          }
          json.writeNumberField(COUNT, view.getCount(phase, step));
          writeStringFieldIfNotNull(json, FILE, step.getFile());
          writeNumberFieldIfDefined(json, SIZE, step.getSize());
          json.writeNumberField(TOTAL, view.getTotal(phase, step));
          json.writeNumberField(PERCENT_COMPLETE, view.getPercentComplete(phase,
            step));
          json.writeNumberField(ELAPSED_TIME, view.getElapsedTime(phase, step));
          json.writeEndObject();
        }


        json.writeEndArray();
        json.writeEndObject();

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Examples of org.apache.hadoop.hdfs.server.namenode.startupprogress.StartupProgressView

     * @param prog StartupProgress tracking NameNode startup progress
     * @throws IOException thrown if there is an I/O error
     */
    void generateStartupProgress(JspWriter out, StartupProgress prog)
        throws IOException {
      StartupProgressView view = prog.createView();
      FormattedWriter fout = new FormattedWriter(out);
      fout.println("<div id=\"startupprogress\">");
      fout.println("<div><span>Elapsed Time:</span> %s</div>",
        StringUtils.formatTime(view.getElapsedTime()));
      fout.println("<div><span>Percent Complete:</span> %s</div>",
        StringUtils.formatPercent(view.getPercentComplete(), 2));
      fout.println("<table>");
      fout.println("<tr>");
      fout.println("<th>Phase</th>");
      fout.println("<th>Completion</th>");
      fout.println("<th>Elapsed Time</th>");
      fout.println("</tr>");
      for (Phase phase: view.getPhases()) {
        final String timeClass;
        Status status = view.getStatus(phase);
        if (status == Status.PENDING) {
          timeClass = "later";
        } else if (status == Status.RUNNING) {
          timeClass = "current";
        } else {
          timeClass = "prior";
        }


        fout.println("<tr class=\"phase %s\">", timeClass);
        printPhase(fout, view, phase);
        fout.println("</tr>");


        for (Step step: view.getSteps(phase)) {
          fout.println("<tr class=\"step %s\">", timeClass);
          printStep(fout, view, phase, step);
          fout.println("</tr>");
        }
      }

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Examples of org.apache.hadoop.hdfs.server.namenode.startupprogress.StartupProgressView

      STARTUP_PROGRESS_METRICS_INFO.description(), this);
  }


  @Override
  public void getMetrics(MetricsCollector collector, boolean all) {
    StartupProgressView prog = startupProgress.createView();
    MetricsRecordBuilder builder = collector.addRecord(
      STARTUP_PROGRESS_METRICS_INFO);


    builder.addCounter(info("ElapsedTime", "overall elapsed time"),
      prog.getElapsedTime());
    builder.addGauge(info("PercentComplete", "overall percent complete"),
      prog.getPercentComplete());


    for (Phase phase: prog.getPhases()) {
      addCounter(builder, phase, "Count", " count", prog.getCount(phase));
      addCounter(builder, phase, "ElapsedTime", " elapsed time",
        prog.getElapsedTime(phase));
      addCounter(builder, phase, "Total", " total", prog.getTotal(phase));
      addGauge(builder, phase, "PercentComplete", " percent complete",
        prog.getPercentComplete(phase));
    }
  }

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