Package org.apache.hadoop.metrics2

Examples of org.apache.hadoop.metrics2.AbstractMetric

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import org.mockito.ArgumentCaptor;
import org.mockito.internal.util.reflection.Whitebox;

public class TestGraphiteMetrics {
    private AbstractMetric makeMetric(String name, Number value) {
        AbstractMetric metric = mock(AbstractMetric.class);
        when(metric.name()).thenReturn(name);
        when(metric.value()).thenReturn(value);
        return metric;
    }
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    public void testPutMetrics() throws Exception {
        SubsetConfiguration configuration = createNiceMock(SubsetConfiguration.class);
        Connection connection = createNiceMock(Connection.class);
        CallableStatement cstmt = createNiceMock(CallableStatement.class);
        MetricsRecord record = createNiceMock(MetricsRecord.class);
        AbstractMetric metric = createNiceMock(AbstractMetric.class);

        // set expectations
        expect(configuration.getParent()).andReturn(null);
        expect(configuration.getPrefix()).andReturn("prefix");
        expect(configuration.getString("databaseUrl")).andReturn("url");

        expect(record.context()).andReturn("context");
        expect(record.name()).andReturn("typeName");
        expect(record.tags()).andReturn(new HashSet<MetricsTag>());
        expect(record.timestamp()).andReturn(9999L);

        expect(record.metrics()).andReturn(Collections.singleton(metric));

        expect(metric.name()).andReturn("name").anyTimes();
        expect(metric.value()).andReturn(1234);

        expect(connection.prepareCall("{call dbo.uspGetMetricRecord(?, ?, ?, ?, ?, ?, ?, ?, ?)}")).andReturn(cstmt);
        cstmt.setNString(1, "context");
        cstmt.setNString(2, "typeName");
        cstmt.setNString(eq(3), (String) anyObject());
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    final long traceid = 987654;
    MetricsInfo info = new ExposedMetricsInfoImpl(TracingCompat.getTraceMetricName(traceid),
        "Some generic trace");
    // setup some metrics for the span
    long spanid = 10;
    AbstractMetric span = new ExposedMetricCounterLong(new ExposedMetricsInfoImpl(
        MetricInfo.SPAN.traceName, ""), spanid);
    long parentid = 11;
    AbstractMetric parent = new ExposedMetricCounterLong(new ExposedMetricsInfoImpl(
        MetricInfo.PARENT.traceName, ""), parentid);
    long startTime = 12;
    AbstractMetric start = new ExposedMetricCounterLong(new ExposedMetricsInfoImpl(
        MetricInfo.START.traceName, ""), startTime);
    long endTime = 13;
    AbstractMetric end = new ExposedMetricCounterLong(new ExposedMetricsInfoImpl(
        MetricInfo.END.traceName, ""), endTime);
    final List<AbstractMetric> metrics = Lists.newArrayList(span, parent, start, end);

    // create an annotation as well
    String annotation = "test annotation for a span";
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  private MetricsTag makeTag(String name, String value) {
    return new MetricsTag(info(name, ""), value);
  }

  private AbstractMetric makeMetric(String name, Number value) {
    AbstractMetric metric = mock(AbstractMetric.class);
    when(metric.name()).thenReturn(name);
    when(metric.value()).thenReturn(value);
    return metric;
  }
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      final Iterator<AbstractMetric> it = delegate.metrics().iterator();
      @Override public Iterator<AbstractMetric> iterator() {
        return new AbstractIterator<AbstractMetric>() {
          @Override public AbstractMetric computeNext() {
            while (it.hasNext()) {
              AbstractMetric next = it.next();
              if (filter.accepts(next.name())) {
                return next;
              }
            }
            return endOfData();
          }
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        cachedMetrics = metricsCache.update(record);

        if (cachedMetrics != null && cachedMetrics.metricsEntrySet() != null) {
          for (Map.Entry<String, AbstractMetric> entry : cachedMetrics
              .metricsEntrySet()) {
            AbstractMetric metric = entry.getValue();
            sb.append(metric.name());
            String name = sb.toString();

            // visit the metric to identify the Ganglia type and
            // slope
            metric.visit(gangliaMetricVisitor);
            type = gangliaMetricVisitor.getType();
            slopeFromMetric = gangliaMetricVisitor.getSlope();

            GangliaConf gConf = getGangliaConfForMetric(name);
            calculatedSlope = calculateSlope(gConf, slopeFromMetric);

            // send metric to Ganglia
            emitMetric(groupName, name, type, metric.value().toString(), gConf,
                calculatedSlope);

            // reset the length of the buffer for next iteration
            sb.setLength(sbBaseLen);
          }
        }
      } else {
        // we support sparse updates

        Collection<AbstractMetric> metrics = (Collection<AbstractMetric>) record
            .metrics();
        if (metrics.size() > 0) {
          // we got metrics. so send the latest
          for (AbstractMetric metric : record.metrics()) {
            sb.append(metric.name());
            String name = sb.toString();

            // visit the metric to identify the Ganglia type and
            // slope
            metric.visit(gangliaMetricVisitor);
            type = gangliaMetricVisitor.getType();
            slopeFromMetric = gangliaMetricVisitor.getSlope();

            GangliaConf gConf = getGangliaConfForMetric(name);
            calculatedSlope = calculateSlope(gConf, slopeFromMetric);

            // send metric to Ganglia
            emitMetric(groupName, name, type, metric.value().toString(), gConf,
                calculatedSlope);

            // reset the length of the buffer for next iteration
            sb.setLength(sbBaseLen);
          }
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     * Lookup a metric value
     * @param key name of the metric
     * @return the metric value
     */
    public Number getMetric(String key) {
      AbstractMetric metric = metrics.get(key);
      return metric != null ? metric.value() : null;
    }
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  @Test public void testPresence() {
    JvmPauseMonitor pauseMonitor = new JvmPauseMonitor(new Configuration());
    JvmMetrics jvmMetrics = new JvmMetrics("test", "test");
    jvmMetrics.setPauseMonitor(pauseMonitor);
    MetricsRecordBuilder rb = getMetrics(jvmMetrics);
    MetricsCollector mc = rb.parent();

    verify(mc).addRecord(JvmMetrics);
    verify(rb).tag(ProcessName, "test");
    verify(rb).tag(SessionId, "test");
    for (JvmMetricsInfo info : JvmMetricsInfo.values()) {
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  @Override
  public synchronized void start() {
    checkNotNull(prefix, "prefix");
    if (monitoring) {
      LOG.warn(prefix +" metrics system already started!",
               new MetricsException("Illegal start"));
      return;
    }
    for (Callback cb : callbacks) cb.preStart();
    configure(prefix);
    startTimer();
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  @Override
  public synchronized void stop() {
    if (!monitoring && !DefaultMetricsSystem.inMiniClusterMode()) {
      LOG.warn(prefix +" metrics system not yet started!",
               new MetricsException("Illegal stop"));
      return;
    }
    if (!monitoring) {
      // in mini cluster mode
      LOG.info(prefix +" metrics system stopped (again)");
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