Examples with NamespaceBundleStats com.yahoo.pulsar.common.policies.data.loadbalancer.NamespaceBundleStats used on opensource projects

Example 1 with NamespaceBundleStats

use of com.yahoo.pulsar.common.policies.data.loadbalancer.NamespaceBundleStats in project pulsar by yahoo.

the class PulsarStats method updateStats.

public synchronized void updateStats(ConcurrentOpenHashMap<String, ConcurrentOpenHashMap<String, ConcurrentOpenHashMap<String, PersistentTopic>>> topicsMap) {
    StatsOutputStream topicStatsStream = new StatsOutputStream(tempTopicStatsBuf);
    try {
        tempMetricsCollection.clear();
        bundleStats.clear();
        brokerOperabilityMetrics.reset();
        // Json begin
        topicStatsStream.startObject();
        topicsMap.forEach((namespaceName, bundles) -> {
            if (bundles.isEmpty()) {
                return;
            }
            try {
                topicStatsStream.startObject(namespaceName);
                nsStats.reset();
                bundles.forEach((bundle, topics) -> {
                    NamespaceBundleStats currentBundleStats = bundleStats.computeIfAbsent(bundle, k -> new NamespaceBundleStats());
                    currentBundleStats.reset();
                    currentBundleStats.topics = topics.size();
                    topicStatsStream.startObject(NamespaceBundle.getBundleRange(bundle));
                    topicStatsStream.startObject("persistent");
                    topics.forEach((name, topic) -> {
                        try {
                            topic.updateRates(nsStats, currentBundleStats, topicStatsStream, clusterReplicationMetrics, namespaceName);
                        } catch (Exception e) {
                            log.error("Failed to generate topic stats for topic {}: {}", name, e.getMessage(), e);
                        }
                        // this task: helps to activate inactive-backlog-cursors which have caught up and
                        // connected, also deactivate active-backlog-cursors which has backlog
                        topic.getManagedLedger().checkBackloggedCursors();
                    });
                    topicStatsStream.endObject();
                    topicStatsStream.endObject();
                });
                topicStatsStream.endObject();
                // Update metricsCollection with namespace stats
                tempMetricsCollection.add(nsStats.add(namespaceName));
            } catch (Exception e) {
                log.error("Failed to generate namespace stats for namespace {}: {}", namespaceName, e.getMessage(), e);
            }
        });
        if (clusterReplicationMetrics.isMetricsEnabled()) {
            clusterReplicationMetrics.get().forEach(clusterMetric -> tempMetricsCollection.add(clusterMetric));
            clusterReplicationMetrics.reset();
        }
        brokerOperabilityMetrics.getMetrics().forEach(brokerOperabilityMetric -> tempMetricsCollection.add(brokerOperabilityMetric));
        // json end
        topicStatsStream.endObject();
    } catch (Exception e) {
        log.error("Unable to update destination stats", e);
    }
    // swap metricsCollection and tempMetricsCollection
    List<Metrics> tempRefMetrics = metricsCollection;
    metricsCollection = tempMetricsCollection;
    tempMetricsCollection = tempRefMetrics;
    bufferLock.writeLock().lock();
    try {
        ByteBuf tmp = topicStatsBuf;
        topicStatsBuf = tempTopicStatsBuf;
        tempTopicStatsBuf = tmp;
        tempTopicStatsBuf.clear();
    } finally {
        bufferLock.writeLock().unlock();
    }
}

Example 2 with NamespaceBundleStats

use of com.yahoo.pulsar.common.policies.data.loadbalancer.NamespaceBundleStats in project pulsar by yahoo.

the class LoadBalancerTest method testDestinationAssignmentWithExistingBundles.

/*
     * Pre-publish load report to ZK, each broker has: - Difference memory capacity, for the first 3 brokers memory is
     * bottleneck, for the 4/5th brokers CPU become bottleneck since memory is big enough - already has some bundles
     * assigned Check the distribution of new destinations is roughly consistent (with <10% variation) with the ranking
     */
@Test
public void testDestinationAssignmentWithExistingBundles() throws Exception {
    for (int i = 0; i < BROKER_COUNT; i++) {
        ResourceQuota defaultQuota = new ResourceQuota();
        defaultQuota.setMsgRateIn(20);
        defaultQuota.setMsgRateOut(60);
        defaultQuota.setBandwidthIn(20000);
        defaultQuota.setBandwidthOut(60000);
        defaultQuota.setMemory(87);
        pulsarServices[i].getLocalZkCacheService().getResourceQuotaCache().setDefaultQuota(defaultQuota);
        LoadReport lr = new LoadReport();
        lr.setName(lookupAddresses[i]);
        SystemResourceUsage sru = new SystemResourceUsage();
        sru.setBandwidthIn(new ResourceUsage(0, 1024000));
        sru.setBandwidthOut(new ResourceUsage(0, 1024000));
        sru.setMemory(new ResourceUsage(0, 2048 * (i + 1)));
        sru.setCpu(new ResourceUsage(60, 400));
        lr.setSystemResourceUsage(sru);
        Map<String, NamespaceBundleStats> bundleStats = new HashMap<String, NamespaceBundleStats>();
        for (int j = 0; j < (i + 1) * 5; j++) {
            String bundleName = String.format("pulsar/use/primary-ns-%d-%d/0x00000000_0xffffffff", i, j);
            NamespaceBundleStats stats = new NamespaceBundleStats();
            bundleStats.put(bundleName, stats);
        }
        lr.setBundleStats(bundleStats);
        String znodePath = String.format("%s/%s", SimpleLoadManagerImpl.LOADBALANCE_BROKERS_ROOT, lookupAddresses[i]);
        String loadReportJson = objectMapper.writeValueAsString(lr);
        bkEnsemble.getZkClient().setData(znodePath, loadReportJson.getBytes(Charsets.UTF_8), -1);
    }
    // sleep to wait load ranking be triggered
    Thread.sleep(5000);
    // print ranking
    for (int i = 0; i < BROKER_COUNT; i++) {
        AtomicReference<Map<Long, Set<ResourceUnit>>> sortedRanking = getSortedRanking(pulsarServices[i]);
        printSortedRanking(sortedRanking);
    }
    // check owner of new destiations and verify that the distribution is roughly
    // consistent (variation < 10%) with the broker capacity:
    int totalNamespaces = 250;
    int[] expectedAssignments = new int[] { 17, 34, 51, 68, 85 };
    Map<String, Integer> namespaceOwner = new HashMap<>();
    for (int i = 0; i < totalNamespaces; i++) {
        DestinationName fqdn = DestinationName.get("persistent://pulsar/use/primary-ns-" + i + "/test-topic");
        ResourceUnit found = pulsarServices[0].getLoadManager().getLeastLoaded(pulsarServices[0].getNamespaceService().getBundle(fqdn));
        if (namespaceOwner.containsKey(found.getResourceId())) {
            namespaceOwner.put(found.getResourceId(), namespaceOwner.get(found.getResourceId()) + 1);
        } else {
            namespaceOwner.put(found.getResourceId(), 1);
        }
    }
    double expectedMaxVariation = 10.0;
    for (int i = 0; i < BROKER_COUNT; i++) {
        long actualValue = 0;
        String resourceId = "http://" + lookupAddresses[i];
        if (namespaceOwner.containsKey(resourceId)) {
            actualValue = namespaceOwner.get(resourceId);
        }
        long expectedValue = expectedAssignments[i];
        double variation = Math.abs(actualValue - expectedValue) * 100.0 / expectedValue;
        log.info("Destination assignment - {}, actual: {}, expected baseline: {}, variation: {}/%", lookupAddresses[i], actualValue, expectedValue, String.format("%.2f", variation));
        assertTrue(variation < expectedMaxVariation);
    }
}

Example 3 with NamespaceBundleStats

use of com.yahoo.pulsar.common.policies.data.loadbalancer.NamespaceBundleStats in project pulsar by yahoo.

the class PersistentTopicE2ETest method testDeleteTopics.

@Test
public void testDeleteTopics() throws Exception {
    BrokerService brokerService = pulsar.getBrokerService();
    // 1. producers connect
    Producer producer1 = pulsarClient.createProducer("persistent://prop/use/ns-abc/topic-1");
    Producer producer2 = pulsarClient.createProducer("persistent://prop/use/ns-abc/topic-2");
    brokerService.updateRates();
    Map<String, NamespaceBundleStats> bundleStatsMap = brokerService.getBundleStats();
    assertEquals(bundleStatsMap.size(), 1);
    NamespaceBundleStats bundleStats = bundleStatsMap.get("prop/use/ns-abc/0x00000000_0xffffffff");
    assertNotNull(bundleStats);
    producer1.close();
    admin.persistentTopics().delete("persistent://prop/use/ns-abc/topic-1");
    brokerService.updateRates();
    bundleStatsMap = brokerService.getBundleStats();
    assertEquals(bundleStatsMap.size(), 1);
    bundleStats = bundleStatsMap.get("prop/use/ns-abc/0x00000000_0xffffffff");
    assertNotNull(bundleStats);
// // Delete 2nd topic as well
// producer2.close();
// admin.persistentTopics().delete("persistent://prop/use/ns-abc/topic-2");
//
// brokerService.updateRates();
//
// bundleStatsMap = brokerService.getBundleStats();
// assertEquals(bundleStatsMap.size(), 0);
}

Example 4 with NamespaceBundleStats

use of com.yahoo.pulsar.common.policies.data.loadbalancer.NamespaceBundleStats in project pulsar by yahoo.

the class LoadBalancerTest method writeLoadReportsForDynamicQuota.

private void writeLoadReportsForDynamicQuota(long timestamp) throws Exception {
    for (int i = 0; i < BROKER_COUNT; i++) {
        LoadReport lr = new LoadReport();
        lr.setName(lookupAddresses[i]);
        lr.setTimestamp(timestamp);
        SystemResourceUsage sru = new SystemResourceUsage();
        sru.setBandwidthIn(new ResourceUsage(5000 * (10 + i * 5), 1024000));
        sru.setBandwidthOut(new ResourceUsage(15000 * (10 + i * 5), 1024000));
        sru.setMemory(new ResourceUsage(25 * (10 + i * 5), 2048 * (i + 1)));
        sru.setCpu(new ResourceUsage(200, 400));
        lr.setSystemResourceUsage(sru);
        Map<String, NamespaceBundleStats> bundleStats = new HashMap<String, NamespaceBundleStats>();
        for (int j = 0; j < 5; j++) {
            String bundleName = String.format("pulsar/use/primary-ns-%d-%d/0x00000000_0xffffffff", i, j);
            NamespaceBundleStats stats = new NamespaceBundleStats();
            stats.msgRateIn = 5 * (i + j);
            stats.msgRateOut = 15 * (i + j);
            stats.msgThroughputIn = 5000 * (i + j);
            stats.msgThroughputOut = 15000 * (i + j);
            stats.topics = 25 * (i + j);
            stats.consumerCount = 50 * (i + j);
            stats.producerCount = 50 * (i + j);
            bundleStats.put(bundleName, stats);
        }
        lr.setBundleStats(bundleStats);
        String znodePath = String.format("%s/%s", SimpleLoadManagerImpl.LOADBALANCE_BROKERS_ROOT, lookupAddresses[i]);
        String loadReportJson = objectMapper.writeValueAsString(lr);
        bkEnsemble.getZkClient().setData(znodePath, loadReportJson.getBytes(Charsets.UTF_8), -1);
    }
}

Example 5 with NamespaceBundleStats

use of com.yahoo.pulsar.common.policies.data.loadbalancer.NamespaceBundleStats in project pulsar by yahoo.

the class SimpleLoadManagerImpl method updateRealtimeResourceQuota.

private synchronized void updateRealtimeResourceQuota() {
    long memObjectGroupSize = 500;
    if (!currentLoadReports.isEmpty()) {
        long totalBundles = 0;
        long totalMemGroups = 0;
        double totalMsgRateIn = 0.0;
        double totalMsgRateOut = 0.0;
        double totalMsgRate = 0.0;
        double totalCpuUsage = 0.0;
        double totalMemoryUsage = 0.0;
        double totalBandwidthIn = 0.0;
        double totalBandwidthOut = 0.0;
        long loadReportTimestamp = -1;
        // update resource factors
        for (Map.Entry<ResourceUnit, LoadReport> entry : currentLoadReports.entrySet()) {
            LoadReport loadReport = entry.getValue();
            if (loadReport.getTimestamp() > loadReportTimestamp) {
                loadReportTimestamp = loadReport.getTimestamp();
            }
            Map<String, NamespaceBundleStats> bundleStats = loadReport.getBundleStats();
            if (bundleStats == null) {
                continue;
            }
            for (Map.Entry<String, NamespaceBundleStats> statsEntry : bundleStats.entrySet()) {
                totalBundles++;
                NamespaceBundleStats stats = statsEntry.getValue();
                totalMemGroups += (1 + (stats.topics + stats.producerCount + stats.consumerCount) / memObjectGroupSize);
                totalBandwidthIn += stats.msgThroughputIn;
                totalBandwidthOut += stats.msgThroughputOut;
            }
            SystemResourceUsage resUsage = loadReport.getSystemResourceUsage();
            totalMsgRateIn += loadReport.getMsgRateIn();
            totalMsgRateOut += loadReport.getMsgRateOut();
            totalCpuUsage = totalCpuUsage + resUsage.getCpu().usage;
            totalMemoryUsage = totalMemoryUsage + resUsage.getMemory().usage;
        }
        totalMsgRate = totalMsgRateIn + totalMsgRateOut;
        long timePast = loadReportTimestamp - this.lastResourceQuotaUpdateTimestamp;
        this.lastResourceQuotaUpdateTimestamp = loadReportTimestamp;
        if (totalMsgRate > 1000 && totalMemGroups > 30) {
            this.realtimeCpuLoadFactor = timeSmoothValue(this.realtimeCpuLoadFactor, totalCpuUsage / totalMsgRate, RESOURCE_QUOTA_MIN_CPU_FACTOR, RESOURCE_QUOTA_MAX_CPU_FACTOR, timePast);
            this.realtimeMemoryLoadFactor = timeSmoothValue(this.realtimeMemoryLoadFactor, totalMemoryUsage / totalMemGroups, RESOURCE_QUOTA_MIN_MEM_FACTOR, RESOURCE_QUOTA_MAX_MEM_FACTOR, timePast);
        }
        // calculate average bundle
        if (totalBundles > 30 && this.realtimeAvgResourceQuota.getDynamic()) {
            ResourceQuota oldQuota = this.realtimeAvgResourceQuota;
            ResourceQuota newQuota = timeSmoothQuota(oldQuota, totalMsgRateIn / totalBundles, totalMsgRateOut / totalBundles, totalBandwidthIn / totalBundles, totalBandwidthOut / totalBundles, totalMemoryUsage / totalBundles, timePast);
            this.realtimeAvgResourceQuota = newQuota;
        }
        // update realtime quota for each bundle
        Map<String, ResourceQuota> newQuotas = new HashMap<>();
        for (Map.Entry<ResourceUnit, LoadReport> entry : currentLoadReports.entrySet()) {
            ResourceUnit resourceUnit = entry.getKey();
            LoadReport loadReport = entry.getValue();
            Map<String, NamespaceBundleStats> bundleStats = loadReport.getBundleStats();
            if (bundleStats == null) {
                continue;
            }
            for (Map.Entry<String, NamespaceBundleStats> statsEntry : bundleStats.entrySet()) {
                String bundle = statsEntry.getKey();
                NamespaceBundleStats stats = statsEntry.getValue();
                long memGroupCount = (1 + (stats.topics + stats.producerCount + stats.consumerCount) / memObjectGroupSize);
                double newMemoryQuota = memGroupCount * this.realtimeMemoryLoadFactor;
                ResourceQuota oldQuota = getResourceQuota(bundle);
                ResourceQuota newQuota = timeSmoothQuota(oldQuota, stats.msgRateIn, stats.msgRateOut, stats.msgThroughputIn, stats.msgThroughputOut, newMemoryQuota, timePast);
                newQuotas.put(bundle, newQuota);
            }
        }
        this.realtimeResourceQuotas.set(newQuotas);
    }
}