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

Example 56 with Snapshot

use of com.codahale.metrics.Snapshot in project incubator-gobblin by apache.

the class OutputStreamReporter method printHistogram.

private void printHistogram(Histogram histogram) {
    this.outputBufferPrintStream.printf(locale, "             count = %d%n", histogram.getCount());
    Snapshot snapshot = histogram.getSnapshot();
    this.outputBufferPrintStream.printf(locale, "               min = %d%n", snapshot.getMin());
    this.outputBufferPrintStream.printf(locale, "               max = %d%n", snapshot.getMax());
    this.outputBufferPrintStream.printf(locale, "              mean = %2.2f%n", snapshot.getMean());
    this.outputBufferPrintStream.printf(locale, "            stddev = %2.2f%n", snapshot.getStdDev());
    this.outputBufferPrintStream.printf(locale, "            median = %2.2f%n", snapshot.getMedian());
    this.outputBufferPrintStream.printf(locale, "              75%% <= %2.2f%n", snapshot.get75thPercentile());
    this.outputBufferPrintStream.printf(locale, "              95%% <= %2.2f%n", snapshot.get95thPercentile());
    this.outputBufferPrintStream.printf(locale, "              98%% <= %2.2f%n", snapshot.get98thPercentile());
    this.outputBufferPrintStream.printf(locale, "              99%% <= %2.2f%n", snapshot.get99thPercentile());
    this.outputBufferPrintStream.printf(locale, "            99.9%% <= %2.2f%n", snapshot.get999thPercentile());
}

Example 57 with Snapshot

use of com.codahale.metrics.Snapshot in project Singularity by HubSpot.

the class SingularityTaskReconciliation method checkReconciliation.

private void checkReconciliation(final long reconciliationStart, final Collection<SingularityTaskId> remainingTaskIds, final int numTimes, final Histogram histogram) {
    final List<SingularityTaskStatusHolder> taskStatusHolders = taskManager.getLastActiveTaskStatusesFor(remainingTaskIds);
    final List<MesosTaskStatusObject> taskStatuses = Lists.newArrayListWithCapacity(taskStatusHolders.size());
    for (SingularityTaskStatusHolder taskStatusHolder : taskStatusHolders) {
        if (taskStatusHolder.getServerId().equals(serverId) && taskStatusHolder.getServerTimestamp() > reconciliationStart) {
            histogram.update(taskStatusHolder.getServerTimestamp() - reconciliationStart);
            continue;
        }
        if (taskStatusHolder.getTaskStatus().isPresent()) {
            LOG.debug("Re-requesting task status for {}", taskStatusHolder.getTaskId());
            taskStatuses.add(taskStatusHolder.getTaskStatus().get());
        } else {
            TaskStatus.Builder fakeTaskStatusBuilder = TaskStatus.newBuilder().setTaskId(TaskID.newBuilder().setValue(taskStatusHolder.getTaskId().getId())).setState(TaskState.TASK_STARTING);
            if (taskStatusHolder.getAgentId().isPresent()) {
                fakeTaskStatusBuilder.setAgentId(AgentID.newBuilder().setValue(taskStatusHolder.getAgentId().get()));
            }
            LOG.info("Task {} didn't have a TaskStatus yet, submitting fake status", taskStatusHolder.getTaskId());
            taskStatuses.add(mesosProtosUtils.taskStatusFromProtos(fakeTaskStatusBuilder.build()));
        }
    }
    if (taskStatuses.isEmpty()) {
        LOG.info("Task reconciliation ended after {} checks and {}", numTimes, JavaUtils.duration(reconciliationStart));
        final Snapshot snapshot = histogram.getSnapshot();
        stateManager.saveTaskReconciliationStatistics(new SingularityTaskReconciliationStatistics(reconciliationStart, System.currentTimeMillis() - reconciliationStart, numTimes, histogram.getCount(), snapshot.getMax(), snapshot.getMean(), snapshot.getMin(), snapshot.getMedian(), snapshot.get75thPercentile(), snapshot.get95thPercentile(), snapshot.get98thPercentile(), snapshot.get99thPercentile(), snapshot.get999thPercentile(), snapshot.getStdDev()));
        isRunningReconciliation.set(false);
        return;
    }
    LOG.info("Requesting reconciliation of {} taskStatuses, task reconciliation has been running for {}", taskStatuses.size(), JavaUtils.duration(reconciliationStart));
    schedulerClient.reconcile(taskStatuses.stream().map(t -> Task.newBuilder().setTaskId(MesosProtosUtils.toTaskId(t.getTaskId())).setAgentId(MesosProtosUtils.toAgentId(t.getAgentId())).build()).collect(Collectors.toList()));
    scheduleReconciliationCheck(reconciliationStart, remainingTaskIds, numTimes, histogram);
}