Examples with OperationProgress com.linkedin.kafka.cruisecontrol.async.progress.OperationProgress used on opensource projects

Example 16 with OperationProgress

use of com.linkedin.kafka.cruisecontrol.async.progress.OperationProgress in project cruise-control by linkedin.

the class KafkaMetricSampleAggregatorTest method testTooManyFlaws.

@Test
public void testTooManyFlaws() throws NotEnoughValidWindowsException {
    KafkaCruiseControlConfig config = new KafkaCruiseControlConfig(getLoadMonitorProperties());
    Metadata metadata = getMetadata(Collections.singleton(TP));
    KafkaMetricSampleAggregator metricSampleAggregator = new KafkaMetricSampleAggregator(config, metadata);
    // Only give two samples to the aggregator.
    CruiseControlUnitTestUtils.populateSampleAggregator(NUM_WINDOWS - 2, MIN_SAMPLES_PER_WINDOW, metricSampleAggregator, PE, 3, WINDOW_MS, KafkaCruiseControlMetricDef.metricDef());
    MetricSampleAggregationResult<String, PartitionEntity> result = metricSampleAggregator.aggregate(clusterAndGeneration(metadata.fetch()), NUM_WINDOWS * WINDOW_MS, new OperationProgress());
    assertTrue(result.valuesAndExtrapolations().isEmpty());
}

Example 17 with OperationProgress

use of com.linkedin.kafka.cruisecontrol.async.progress.OperationProgress in project cruise-control by linkedin.

the class LoadMonitorTest method testClusterModelWithInvalidPartitionAndInsufficientSnapshotWindows.

// Not enough snapshot windows and some partitions are missing from all snapshot windows.
@Test
public void testClusterModelWithInvalidPartitionAndInsufficientSnapshotWindows() throws NotEnoughValidWindowsException {
    TestContext context = prepareContext();
    LoadMonitor loadMonitor = context.loadmonitor();
    KafkaMetricSampleAggregator aggregator = context.aggregator();
    ModelCompletenessRequirements requirements1 = new ModelCompletenessRequirements(1, 1.0, false);
    ModelCompletenessRequirements requirements2 = new ModelCompletenessRequirements(1, 0.5, false);
    ModelCompletenessRequirements requirements3 = new ModelCompletenessRequirements(2, 1.0, false);
    ModelCompletenessRequirements requirements4 = new ModelCompletenessRequirements(2, 0.5, false);
    // populate the metrics aggregator.
    // two samples for each partition except T1P1
    CruiseControlUnitTestUtils.populateSampleAggregator(2, 4, aggregator, PE_T0P0, 0, WINDOW_MS, METRIC_DEF);
    CruiseControlUnitTestUtils.populateSampleAggregator(2, 4, aggregator, PE_T0P1, 0, WINDOW_MS, METRIC_DEF);
    CruiseControlUnitTestUtils.populateSampleAggregator(2, 4, aggregator, PE_T1P0, 0, WINDOW_MS, METRIC_DEF);
    try {
        loadMonitor.clusterModel(-1, Long.MAX_VALUE, requirements1, new OperationProgress());
        fail("Should have thrown NotEnoughValidWindowsException.");
    } catch (NotEnoughValidWindowsException nevwe) {
    // let it go
    }
    ClusterModel clusterModel = loadMonitor.clusterModel(-1L, Long.MAX_VALUE, requirements2, new OperationProgress());
    assertNull(clusterModel.partition(T1P0));
    assertNull(clusterModel.partition(T1P1));
    assertEquals(1, clusterModel.partition(T0P0).leader().load().numWindows());
    assertEquals(3, clusterModel.partition(T0P0).leader().load().expectedUtilizationFor(Resource.DISK), 0.0);
    assertEquals(1.5, clusterModel.partition(T0P0).leader().load().expectedUtilizationFor(Resource.CPU), 0.0);
    assertEquals(1.5, clusterModel.partition(T0P0).leader().load().expectedUtilizationFor(Resource.NW_IN), 0.0);
    assertEquals(1.5, clusterModel.partition(T0P0).leader().load().expectedUtilizationFor(Resource.NW_OUT), 0.0);
    try {
        loadMonitor.clusterModel(-1L, Long.MAX_VALUE, requirements3, new OperationProgress());
        fail("Should have thrown NotEnoughValidWindowsException.");
    } catch (NotEnoughValidWindowsException nevwe) {
    // let it go
    }
    try {
        loadMonitor.clusterModel(-1L, Long.MAX_VALUE, requirements4, new OperationProgress());
        fail("Should have thrown NotEnoughValidWindowsException.");
    } catch (NotEnoughValidWindowsException nevwe) {
    // let it go
    }
}

Example 18 with OperationProgress

use of com.linkedin.kafka.cruisecontrol.async.progress.OperationProgress in project cruise-control by linkedin.

the class LoadMonitorTest method prepareContext.

private TestContext prepareContext() {
    // Create mock metadata client.
    Metadata metadata = getMetadata(Arrays.asList(T0P0, T0P1, T1P0, T1P1));
    MetadataClient mockMetadataClient = EasyMock.mock(MetadataClient.class);
    EasyMock.expect(mockMetadataClient.cluster()).andReturn(metadata.fetch()).anyTimes();
    EasyMock.expect(mockMetadataClient.clusterAndGeneration()).andReturn(new MetadataClient.ClusterAndGeneration(metadata.fetch(), 0)).anyTimes();
    EasyMock.expect(mockMetadataClient.metadata()).andReturn(metadata).anyTimes();
    EasyMock.expect(mockMetadataClient.refreshMetadata()).andReturn(new MetadataClient.ClusterAndGeneration(metadata.fetch(), 0)).anyTimes();
    EasyMock.expect(mockMetadataClient.refreshMetadata(anyLong())).andReturn(new MetadataClient.ClusterAndGeneration(metadata.fetch(), 0)).anyTimes();
    EasyMock.replay(mockMetadataClient);
    // create load monitor.
    Properties props = KafkaCruiseControlUnitTestUtils.getKafkaCruiseControlProperties();
    props.put(KafkaCruiseControlConfig.NUM_METRICS_WINDOWS_CONFIG, Integer.toString(NUM_WINDOWS));
    props.put(KafkaCruiseControlConfig.MIN_SAMPLES_PER_METRICS_WINDOW_CONFIG, Integer.toString(MIN_SAMPLES_PER_WINDOW));
    props.put(KafkaCruiseControlConfig.METRICS_WINDOW_MS_CONFIG, Long.toString(WINDOW_MS));
    props.put("cleanup.policy", DEFAULT_CLEANUP_POLICY);
    props.put(KafkaCruiseControlConfig.SAMPLE_STORE_CLASS_CONFIG, NoopSampleStore.class.getName());
    KafkaCruiseControlConfig config = new KafkaCruiseControlConfig(props);
    LoadMonitor loadMonitor = new LoadMonitor(config, mockMetadataClient, _time, new MetricRegistry(), METRIC_DEF);
    KafkaMetricSampleAggregator aggregator = loadMonitor.aggregator();
    ModelParameters.init(config);
    loadMonitor.startUp();
    while (loadMonitor.state(new OperationProgress()).state() != LoadMonitorTaskRunner.LoadMonitorTaskRunnerState.RUNNING) {
        try {
            Thread.sleep(1);
        } catch (InterruptedException e) {
        // let it go.
        }
    }
    return new TestContext(loadMonitor, aggregator, config, metadata);
}

Example 19 with OperationProgress

use of com.linkedin.kafka.cruisecontrol.async.progress.OperationProgress in project cruise-control by linkedin.

the class LoadMonitor method getMonitoredPartitionsPercentage.

private double getMonitoredPartitionsPercentage() {
    MetadataClient.ClusterAndGeneration clusterAndGeneration = _metadataClient.refreshMetadata();
    Cluster kafkaCluster = clusterAndGeneration.cluster();
    MetricSampleAggregationResult<String, PartitionEntity> metricSampleAggregationResult;
    try {
        metricSampleAggregationResult = _metricSampleAggregator.aggregate(clusterAndGeneration, System.currentTimeMillis(), new OperationProgress());
    } catch (NotEnoughValidWindowsException e) {
        return 0.0;
    }
    Map<PartitionEntity, ValuesAndExtrapolations> partitionLoads = metricSampleAggregationResult.valuesAndExtrapolations();
    AtomicInteger numPartitionsWithExtrapolations = new AtomicInteger(0);
    partitionLoads.values().forEach(valuesAndExtrapolations -> {
        if (!valuesAndExtrapolations.extrapolations().isEmpty()) {
            numPartitionsWithExtrapolations.incrementAndGet();
        }
    });
    _numPartitionsWithExtrapolations = numPartitionsWithExtrapolations.get();
    int totalNumPartitions = MonitorUtils.totalNumPartitions(kafkaCluster);
    return totalNumPartitions > 0 ? metricSampleAggregationResult.completeness().validEntityRatio() : 0.0;
}

Example 20 with OperationProgress

use of com.linkedin.kafka.cruisecontrol.async.progress.OperationProgress in project cruise-control by linkedin.

the class GoalViolationDetector method run.

@Override
public void run() {
    long now = _time.milliseconds();
    if (_loadMonitor.clusterModelGeneration().equals(_lastCheckedModelGeneration)) {
        LOG.debug("Skipping goal violation detection because the model generation hasn't changed. Current model generation {}", _loadMonitor.clusterModelGeneration());
        return;
    }
    AutoCloseable clusterModelSemaphore = null;
    try {
        LoadMonitorTaskRunner.LoadMonitorTaskRunnerState loadMonitorTaskRunnerState = _loadMonitor.taskRunnerState();
        if (!ViolationUtils.isLoadMonitorReady(loadMonitorTaskRunnerState)) {
            LOG.info("Skipping goal violation detection because load monitor is in {} state.", loadMonitorTaskRunnerState);
            return;
        }
        GoalViolations goalViolations = new GoalViolations();
        boolean newModelNeeded = true;
        ClusterModel clusterModel = null;
        for (Map.Entry<Integer, Goal> entry : _goals.entrySet()) {
            Goal goal = entry.getValue();
            if (_loadMonitor.meetCompletenessRequirements(goal.clusterModelCompletenessRequirements())) {
                LOG.debug("Detecting if {} is violated.", entry.getValue().name());
                // Because the model generation could be slow, We only get new cluster model if needed.
                if (newModelNeeded) {
                    if (clusterModelSemaphore != null) {
                        clusterModelSemaphore.close();
                    }
                    clusterModelSemaphore = _loadMonitor.acquireForModelGeneration(new OperationProgress());
                    // Make cluster model null before generating a new cluster model so the current one can be GCed.
                    clusterModel = null;
                    clusterModel = _loadMonitor.clusterModel(now, goal.clusterModelCompletenessRequirements(), new OperationProgress());
                }
                int priority = entry.getKey();
                newModelNeeded = optimizeForGoal(clusterModel, priority, goal, goalViolations);
            } else {
                LOG.debug("Skipping goal violation detection for {} because load completeness requirement is not met.", goal);
            }
        }
        if (clusterModel != null) {
            _lastCheckedModelGeneration = clusterModel.generation();
        }
        if (!goalViolations.violations().isEmpty()) {
            _anomalies.add(goalViolations);
        }
    } catch (NotEnoughValidWindowsException nevwe) {
        LOG.debug("Skipping goal violation detection because there are not enough valid windows.");
    } catch (KafkaCruiseControlException kcce) {
        LOG.warn("Goal violation detector received exception", kcce);
    } catch (Exception e) {
        LOG.error("Unexpected exception", e);
    } finally {
        if (clusterModelSemaphore != null) {
            try {
                clusterModelSemaphore.close();
            } catch (Exception e) {
                LOG.error("Received exception when closing auto closable semaphore", e);
            }
        }
        LOG.debug("Goal violation detection finished.");
    }
}