Examples with MetricAnomaly com.linkedin.cruisecontrol.detector.metricanomaly.MetricAnomaly used on opensource projects

Example 1 with MetricAnomaly

use of com.linkedin.cruisecontrol.detector.metricanomaly.MetricAnomaly in project cruise-control by linkedin.

the class SlowBrokerFinder method createSlowBrokerAnomalies.

private Set<MetricAnomaly<BrokerEntity>> createSlowBrokerAnomalies(Set<BrokerEntity> detectedMetricAnomalies, int clusterSize) {
    Set<MetricAnomaly<BrokerEntity>> detectedSlowBrokers = new HashSet<>();
    Map<BrokerEntity, Long> brokersToDemote = new HashMap<>();
    Map<BrokerEntity, Long> brokersToRemove = new HashMap<>();
    for (BrokerEntity broker : detectedMetricAnomalies) {
        // Report anomaly if slowness score reaches threshold for broker decommission/demotion.
        int slownessScore = _brokerSlownessScore.get(broker);
        if (slownessScore == _slowBrokerDecommissionScore) {
            brokersToRemove.put(broker, _detectedSlowBrokers.get(broker));
        } else if (slownessScore >= _slowBrokerDemotionScore) {
            brokersToDemote.put(broker, _detectedSlowBrokers.get(broker));
        }
    }
    // Update number of slow brokers with the given type.
    int numBrokersToDemoteOrRemove = brokersToDemote.size() + brokersToRemove.size();
    _numSlowBrokersByType.put(MetricAnomalyType.PERSISTENT, brokersToRemove.size());
    _numSlowBrokersByType.put(MetricAnomalyType.RECENT, brokersToDemote.size());
    _numSlowBrokersByType.put(MetricAnomalyType.SUSPECT, _detectedSlowBrokers.size() - numBrokersToDemoteOrRemove);
    // Otherwise report anomaly with brokers to be removed/demoted.
    if (numBrokersToDemoteOrRemove > clusterSize * _selfHealingUnfixableRatio) {
        brokersToRemove.forEach(brokersToDemote::put);
        detectedSlowBrokers.add(createSlowBrokersAnomaly(brokersToDemote, false, false));
    } else {
        if (!brokersToDemote.isEmpty()) {
            detectedSlowBrokers.add(createSlowBrokersAnomaly(brokersToDemote, true, false));
        }
        if (!brokersToRemove.isEmpty()) {
            detectedSlowBrokers.add(createSlowBrokersAnomaly(brokersToRemove, _slowBrokerRemovalEnabled, true));
        }
    }
    return detectedSlowBrokers;
}