Examples with Histogram com.codahale.metrics.Histogram used on opensource projects

Example 1 with Histogram

use of com.codahale.metrics.Histogram in project hadoop by apache.

the class SLSCapacityScheduler method registerSchedulerMetrics.

private void registerSchedulerMetrics() {
    samplerLock.lock();
    try {
        // counters for scheduler operations
        schedulerAllocateCounter = metrics.counter("counter.scheduler.operation.allocate");
        schedulerHandleCounter = metrics.counter("counter.scheduler.operation.handle");
        schedulerHandleCounterMap = new HashMap<SchedulerEventType, Counter>();
        for (SchedulerEventType e : SchedulerEventType.values()) {
            Counter counter = metrics.counter("counter.scheduler.operation.handle." + e);
            schedulerHandleCounterMap.put(e, counter);
        }
        // timers for scheduler operations
        int timeWindowSize = conf.getInt(SLSConfiguration.METRICS_TIMER_WINDOW_SIZE, SLSConfiguration.METRICS_TIMER_WINDOW_SIZE_DEFAULT);
        schedulerAllocateTimer = new Timer(new SlidingWindowReservoir(timeWindowSize));
        schedulerHandleTimer = new Timer(new SlidingWindowReservoir(timeWindowSize));
        schedulerHandleTimerMap = new HashMap<SchedulerEventType, Timer>();
        for (SchedulerEventType e : SchedulerEventType.values()) {
            Timer timer = new Timer(new SlidingWindowReservoir(timeWindowSize));
            schedulerHandleTimerMap.put(e, timer);
        }
        // histogram for scheduler operations (Samplers)
        schedulerHistogramList = new ArrayList<Histogram>();
        histogramTimerMap = new HashMap<Histogram, Timer>();
        Histogram schedulerAllocateHistogram = new Histogram(new SlidingWindowReservoir(SAMPLING_SIZE));
        metrics.register("sampler.scheduler.operation.allocate.timecost", schedulerAllocateHistogram);
        schedulerHistogramList.add(schedulerAllocateHistogram);
        histogramTimerMap.put(schedulerAllocateHistogram, schedulerAllocateTimer);
        Histogram schedulerHandleHistogram = new Histogram(new SlidingWindowReservoir(SAMPLING_SIZE));
        metrics.register("sampler.scheduler.operation.handle.timecost", schedulerHandleHistogram);
        schedulerHistogramList.add(schedulerHandleHistogram);
        histogramTimerMap.put(schedulerHandleHistogram, schedulerHandleTimer);
        for (SchedulerEventType e : SchedulerEventType.values()) {
            Histogram histogram = new Histogram(new SlidingWindowReservoir(SAMPLING_SIZE));
            metrics.register("sampler.scheduler.operation.handle." + e + ".timecost", histogram);
            schedulerHistogramList.add(histogram);
            histogramTimerMap.put(histogram, schedulerHandleTimerMap.get(e));
        }
    } finally {
        samplerLock.unlock();
    }
}

Example 2 with Histogram

use of com.codahale.metrics.Histogram in project hadoop by apache.

the class ResourceSchedulerWrapper method registerSchedulerMetrics.

private void registerSchedulerMetrics() {
    samplerLock.lock();
    try {
        // counters for scheduler operations
        schedulerAllocateCounter = metrics.counter("counter.scheduler.operation.allocate");
        schedulerHandleCounter = metrics.counter("counter.scheduler.operation.handle");
        schedulerHandleCounterMap = new HashMap<SchedulerEventType, Counter>();
        for (SchedulerEventType e : SchedulerEventType.values()) {
            Counter counter = metrics.counter("counter.scheduler.operation.handle." + e);
            schedulerHandleCounterMap.put(e, counter);
        }
        // timers for scheduler operations
        int timeWindowSize = conf.getInt(SLSConfiguration.METRICS_TIMER_WINDOW_SIZE, SLSConfiguration.METRICS_TIMER_WINDOW_SIZE_DEFAULT);
        schedulerAllocateTimer = new Timer(new SlidingWindowReservoir(timeWindowSize));
        schedulerHandleTimer = new Timer(new SlidingWindowReservoir(timeWindowSize));
        schedulerHandleTimerMap = new HashMap<SchedulerEventType, Timer>();
        for (SchedulerEventType e : SchedulerEventType.values()) {
            Timer timer = new Timer(new SlidingWindowReservoir(timeWindowSize));
            schedulerHandleTimerMap.put(e, timer);
        }
        // histogram for scheduler operations (Samplers)
        schedulerHistogramList = new ArrayList<Histogram>();
        histogramTimerMap = new HashMap<Histogram, Timer>();
        Histogram schedulerAllocateHistogram = new Histogram(new SlidingWindowReservoir(SAMPLING_SIZE));
        metrics.register("sampler.scheduler.operation.allocate.timecost", schedulerAllocateHistogram);
        schedulerHistogramList.add(schedulerAllocateHistogram);
        histogramTimerMap.put(schedulerAllocateHistogram, schedulerAllocateTimer);
        Histogram schedulerHandleHistogram = new Histogram(new SlidingWindowReservoir(SAMPLING_SIZE));
        metrics.register("sampler.scheduler.operation.handle.timecost", schedulerHandleHistogram);
        schedulerHistogramList.add(schedulerHandleHistogram);
        histogramTimerMap.put(schedulerHandleHistogram, schedulerHandleTimer);
        for (SchedulerEventType e : SchedulerEventType.values()) {
            Histogram histogram = new Histogram(new SlidingWindowReservoir(SAMPLING_SIZE));
            metrics.register("sampler.scheduler.operation.handle." + e + ".timecost", histogram);
            schedulerHistogramList.add(histogram);
            histogramTimerMap.put(histogram, schedulerHandleTimerMap.get(e));
        }
    } finally {
        samplerLock.unlock();
    }
}

Example 3 with Histogram

use of com.codahale.metrics.Histogram in project camel by apache.

the class HistogramProducer method doProcess.

@Override
protected void doProcess(Exchange exchange, MetricsEndpoint endpoint, MetricRegistry registry, String metricsName) throws Exception {
    Message in = exchange.getIn();
    Histogram histogram = registry.histogram(metricsName);
    Long value = endpoint.getValue();
    Long finalValue = getLongHeader(in, HEADER_HISTOGRAM_VALUE, value);
    if (finalValue != null) {
        histogram.update(finalValue);
    } else {
        LOG.warn("Cannot update histogram \"{}\" with null value", metricsName);
    }
}

Example 4 with Histogram

use of com.codahale.metrics.Histogram in project graylog2-server by Graylog2.

the class SearchesTest method fieldHistogramRecordsMetrics.

@Test
@UsingDataSet(loadStrategy = LoadStrategyEnum.CLEAN_INSERT)
public void fieldHistogramRecordsMetrics() throws Exception {
    final AbsoluteRange range = AbsoluteRange.create(new DateTime(2015, 1, 1, 0, 0, DateTimeZone.UTC), new DateTime(2015, 1, 2, 0, 0, DateTimeZone.UTC));
    HistogramResult h = searches.fieldHistogram("*", "n", Searches.DateHistogramInterval.MINUTE, null, range, false);
    assertThat(metricRegistry.getTimers()).containsKey(REQUEST_TIMER_NAME);
    assertThat(metricRegistry.getHistograms()).containsKey(RANGES_HISTOGRAM_NAME);
    Timer timer = metricRegistry.timer(REQUEST_TIMER_NAME);
    assertThat(timer.getCount()).isEqualTo(1L);
    Histogram histogram = metricRegistry.histogram(RANGES_HISTOGRAM_NAME);
    assertThat(histogram.getCount()).isEqualTo(1L);
    assertThat(histogram.getSnapshot().getValues()).containsExactly(86400L);
}

Example 5 with Histogram

use of com.codahale.metrics.Histogram in project graylog2-server by Graylog2.

the class SearchesTest method histogramRecordsMetrics.

@Test
@UsingDataSet(loadStrategy = LoadStrategyEnum.CLEAN_INSERT)
public void histogramRecordsMetrics() throws Exception {
    final AbsoluteRange range = AbsoluteRange.create(new DateTime(2015, 1, 1, 0, 0, DateTimeZone.UTC), new DateTime(2015, 1, 2, 0, 0, DateTimeZone.UTC));
    HistogramResult h = searches.histogram("*", Searches.DateHistogramInterval.MINUTE, range);
    assertThat(metricRegistry.getTimers()).containsKey(REQUEST_TIMER_NAME);
    assertThat(metricRegistry.getHistograms()).containsKey(RANGES_HISTOGRAM_NAME);
    Timer timer = metricRegistry.timer(REQUEST_TIMER_NAME);
    assertThat(timer.getCount()).isEqualTo(1L);
    Histogram histogram = metricRegistry.histogram(RANGES_HISTOGRAM_NAME);
    assertThat(histogram.getCount()).isEqualTo(1L);
    assertThat(histogram.getSnapshot().getValues()).containsExactly(86400L);
}