Examples with ConsumerCallbackStats com.linkedin.databus.client.pub.mbean.ConsumerCallbackStats used on opensource projects

Example 6 with ConsumerCallbackStats

use of com.linkedin.databus.client.pub.mbean.ConsumerCallbackStats in project databus by linkedin.

the class DatabusHttpClientImpl method initializeRelayConnections.

private synchronized void initializeRelayConnections() {
    for (List<DatabusSubscription> subsList : _relayGroups.keySet()) {
        List<String> sourcesStrList = DatabusSubscription.getStrList(subsList);
        List<DatabusV2ConsumerRegistration> relayConsumers = getRelayGroupStreamConsumers().get(subsList);
        // nothing to do
        if (null == relayConsumers || 0 == relayConsumers.size())
            continue;
        try {
            DatabusSourcesConnection.StaticConfig connConfig = getClientStaticConfig().getConnection(sourcesStrList);
            if (null == connConfig) {
                connConfig = getClientStaticConfig().getConnectionDefaults();
            }
            // make sure we have the right policy.
            if (!connConfig.getEventBuffer().isEnableScnIndex() && connConfig.getEventBuffer().getQueuePolicy() != DbusEventBuffer.QueuePolicy.BLOCK_ON_WRITE) {
                throw new InvalidConfigException("If SCN index is disabled, queue policy must be BLOCK_ON_WRITE");
            }
            CheckpointPersistenceProvider cpPersistenceProvder = getCheckpointPersistenceProvider();
            if (null != cpPersistenceProvder && getClientStaticConfig().getCheckpointPersistence().isClearBeforeUse()) {
                cpPersistenceProvder.removeCheckpoint(sourcesStrList);
            }
            ServerInfo server0 = _relayGroups.get(subsList).iterator().next();
            ArrayList<DatabusV2ConsumerRegistration> bstConsumersRegs = new ArrayList<DatabusV2ConsumerRegistration>();
            for (List<DatabusSubscription> bstSubSourcesList : getRelayGroupBootstrapConsumers().keySet()) {
                List<DatabusV2ConsumerRegistration> bstRegsistrations = getRelayGroupBootstrapConsumers().get(bstSubSourcesList);
                for (DatabusV2ConsumerRegistration bstConsumerReg : bstRegsistrations) {
                    if (server0.supportsSources(bstConsumerReg.getSources())) {
                        bstConsumersRegs.add(bstConsumerReg);
                    }
                }
            }
            DbusEventBuffer eventBuffer = connConfig.getEventBuffer().getOrCreateEventBuffer(_eventFactory);
            eventBuffer.setDropOldEvents(true);
            eventBuffer.start(0);
            DbusEventBuffer bootstrapBuffer = null;
            // create bootstrap only if it is enabled
            if (_clientStaticConfig.getRuntime().getBootstrap().isEnabled()) {
                bootstrapBuffer = new DbusEventBuffer(connConfig.getEventBuffer());
                bootstrapBuffer.setDropOldEvents(false);
                bootstrapBuffer.start(0);
            }
            LOG.info("The sourcesList is " + sourcesStrList);
            LOG.info("The relayGroupStreamConsumers is " + getRelayGroupStreamConsumers().get(subsList));
            Set<ServerInfo> relays = _relayGroups.get(subsList);
            Set<ServerInfo> bootstrapServices = _bootstrapGroups.get(subsList);
            String statsCollectorName = generateSubsStatsName(sourcesStrList);
            int ownerId = getContainerStaticConfig().getId();
            _bootstrapEventsStats.addStatsCollector(statsCollectorName, new DbusEventsStatisticsCollector(ownerId, statsCollectorName + ".inbound.bs", true, false, getMbeanServer()));
            _inBoundStatsCollectors.addStatsCollector(statsCollectorName, new DbusEventsStatisticsCollector(ownerId, statsCollectorName + ".inbound", true, false, getMbeanServer()));
            _outBoundStatsCollectors.addStatsCollector(statsCollectorName, new DbusEventsStatisticsCollector(ownerId, statsCollectorName + ".outbound", true, false, getMbeanServer()));
            _consumerStatsCollectors.addStatsCollector(statsCollectorName, new ConsumerCallbackStats(ownerId, statsCollectorName + ".inbound.cons", statsCollectorName + ".inbound.cons", true, false, null, getMbeanServer()));
            _bsConsumerStatsCollectors.addStatsCollector(statsCollectorName, new ConsumerCallbackStats(ownerId, statsCollectorName + ".inbound.bs.cons", statsCollectorName + ".inbound.bs.cons", true, false, null, getMbeanServer()));
            _unifiedClientStatsCollectors.addStatsCollector(statsCollectorName, new UnifiedClientStats(ownerId, statsCollectorName + ".inbound.unified.cons", statsCollectorName + ".inbound.unified.cons", true, false, _clientStaticConfig.getPullerThreadDeadnessThresholdMs(), null, getMbeanServer()));
            ConnectionStateFactory connStateFactory = new ConnectionStateFactory(DatabusSubscription.getStrList(subsList));
            DatabusSourcesConnection newConn = new DatabusSourcesConnection(connConfig, subsList, relays, bootstrapServices, relayConsumers, // _relayGroupBootstrapConsumers.get(sourcesList),
            bstConsumersRegs, eventBuffer, bootstrapBuffer, getDefaultExecutorService(), getContainerStatsCollector(), _inBoundStatsCollectors.getStatsCollector(statsCollectorName), _bootstrapEventsStats.getStatsCollector(statsCollectorName), _consumerStatsCollectors.getStatsCollector(statsCollectorName), _bsConsumerStatsCollectors.getStatsCollector(statsCollectorName), _unifiedClientStatsCollectors.getStatsCollector(statsCollectorName), getCheckpointPersistenceProvider(), getRelayConnFactory(), getBootstrapConnFactory(), getHttpStatsCollector(), null, this, _eventFactory, connStateFactory);
            newConn.start();
            _relayConnections.add(newConn);
        } catch (Exception e) {
            LOG.error("connection initialization issue for source(s):" + subsList + "; please check your configuration", e);
        }
    }
    if (0 == _relayConnections.size()) {
        LOG.warn("No connections specified");
    }
}

Example 7 with ConsumerCallbackStats

use of com.linkedin.databus.client.pub.mbean.ConsumerCallbackStats in project databus by linkedin.

the class TestMultiConsumerCallback method testPerf.

@Test
public void testPerf() throws Exception {
    LOG.info("\n\nstarting testPerf()");
    List<String> sources = new ArrayList<String>();
    Map<Long, IdNamePair> sourcesMap = new HashMap<Long, IdNamePair>();
    for (int i = 1; i <= 3; ++i) {
        IdNamePair sourcePair = new IdNamePair((long) i, "source" + i);
        sources.add(sourcePair.getName());
        sourcesMap.put(sourcePair.getId(), sourcePair);
    }
    Hashtable<Long, AtomicInteger> keyCounts = new Hashtable<Long, AtomicInteger>();
    DbusEventBuffer eventsBuf = new DbusEventBuffer(_generic100KBufferStaticConfig);
    eventsBuf.start(0);
    eventsBuf.startEvents();
    initBufferWithEvents(eventsBuf, 1, 1, (short) 1, keyCounts);
    initBufferWithEvents(eventsBuf, 2, 2, (short) 3, keyCounts);
    eventsBuf.endEvents(100L);
    DbusEventBuffer.DbusEventIterator iter = eventsBuf.acquireIterator("myIter1");
    assert iter.hasNext() : "unable to read event";
    iter.next();
    DbusEvent event1 = iter.next();
    DatabusStreamConsumer logConsumer = new LoggingConsumer();
    SelectingDatabusCombinedConsumer sdccLogConsumer = new SelectingDatabusCombinedConsumer(logConsumer);
    DatabusV2ConsumerRegistration consumerReg = new DatabusV2ConsumerRegistration(sdccLogConsumer, sources, null);
    ConsumerCallbackStats consumerStatsCollector = new ConsumerCallbackStats(1, "test", "test", true, false, null);
    UnifiedClientStats unifiedStatsCollector = new UnifiedClientStats(1, "test", "test.unified");
    List<DatabusV2ConsumerRegistration> allRegistrations = Arrays.asList(consumerReg);
    ThreadPoolExecutor executor = (ThreadPoolExecutor) Executors.newCachedThreadPool();
    MultiConsumerCallback callback = new MultiConsumerCallback(allRegistrations, executor, 60000, new StreamConsumerCallbackFactory(consumerStatsCollector, unifiedStatsCollector), consumerStatsCollector, unifiedStatsCollector, null, null);
    callback.setSourceMap(sourcesMap);
    callback.onStartConsumption();
    callback.onStartDataEventSequence(new SingleSourceSCN(1, 1));
    for (int i = 0; i < 10000; ++i) {
        callback.onDataEvent(event1, null);
    }
    callback.onEndDataEventSequence(new SingleSourceSCN(1, 1));
    callback.onStopConsumption();
    System.out.println("max threads=" + executor.getLargestPoolSize() + " task count=" + executor.getTaskCount());
    System.out.println("dataEventsReceived=" + consumerStatsCollector.getNumDataEventsReceived() + " sysEventsReceived=" + consumerStatsCollector.getNumSysEventsReceived() + " dataEventsProcessed=" + consumerStatsCollector.getNumDataEventsProcessed() + " latencyEventsProcessed=" + consumerStatsCollector.getLatencyEventsProcessed());
    long dataEvents = consumerStatsCollector.getNumDataEventsReceived();
    assert (consumerStatsCollector.getNumDataEventsProcessed() == dataEvents);
}

Example 8 with ConsumerCallbackStats

use of com.linkedin.databus.client.pub.mbean.ConsumerCallbackStats in project databus by linkedin.

the class TestGenericDispatcher method testShutdownBeforeRollback.

@Test(groups = { "small", "functional" })
public /**
 * 1. Dispatcher is dispatching 2 window of events.
 * 2. First window consumption is successfully done.
 * 3. The second window's onStartDataEventSequence() of the callback registered is blocked (interruptible),
 *    causing the dispatcher to wait.
 * 4. At this instant the dispatcher is shut down. The callback is made to return Failure status which would
 *    cause rollback in normal scenario.
 * 5. As the shutdown message is passed, the blocked callback is expected to be interrupted and no rollback
 *    calls MUST be made.
 */
void testShutdownBeforeRollback() throws Exception {
    final Logger log = Logger.getLogger("TestGenericDispatcher.testShutdownBeforeRollback");
    log.setLevel(Level.INFO);
    // log.getRoot().setLevel(Level.DEBUG);
    LOG.info("start");
    // generate events
    Vector<Short> srcIdList = new Vector<Short>();
    srcIdList.add((short) 1);
    DbusEventGenerator evGen = new DbusEventGenerator(0, srcIdList);
    Vector<DbusEvent> srcTestEvents = new Vector<DbusEvent>();
    final int numEvents = 8;
    final int numEventsPerWindow = 4;
    final int payloadSize = 200;
    Assert.assertTrue(evGen.generateEvents(numEvents, numEventsPerWindow, 500, payloadSize, srcTestEvents) > 0);
    // find out how much data we need to stream for the failure
    // account for the EOW event which is < payload size
    int win1Size = payloadSize - 1;
    for (DbusEvent e : srcTestEvents) {
        win1Size += e.size();
    }
    // serialize the events to a buffer so they can be sent to the client
    final TestGenericDispatcherEventBuffer srcEventsBuf = new TestGenericDispatcherEventBuffer(_generic100KBufferStaticConfig);
    DbusEventAppender eventProducer = new DbusEventAppender(srcTestEvents, srcEventsBuf, null, true);
    Thread tEmitter = new Thread(eventProducer);
    tEmitter.start();
    // Create destination (client) buffer
    final TestGenericDispatcherEventBuffer destEventsBuf = new TestGenericDispatcherEventBuffer(_generic100KBufferStaticConfig);
    /**
     *  Consumer with ability to wait for latch during onStartDataEventSequence()
     */
    class TimeoutDESConsumer extends TimeoutTestConsumer {

        private final CountDownLatch latch = new CountDownLatch(1);

        private int _countStartWindow = 0;

        private final int _failedRequestNumber;

        public TimeoutDESConsumer(int failedRequestNumber) {
            super(1, 1, 0, 0, 0, 0);
            _failedRequestNumber = failedRequestNumber;
        }

        public CountDownLatch getLatch() {
            return latch;
        }

        @Override
        public ConsumerCallbackResult onStartDataEventSequence(SCN startScn) {
            _countStartWindow++;
            if (_countStartWindow == _failedRequestNumber) {
                // Wait for the latch to open
                try {
                    latch.await();
                } catch (InterruptedException e) {
                }
                return ConsumerCallbackResult.ERROR_FATAL;
            }
            return super.onStartDataEventSequence(startScn);
        }

        @Override
        public ConsumerCallbackResult onDataEvent(DbusEvent e, DbusEventDecoder eventDecoder) {
            return ConsumerCallbackResult.SUCCESS;
        }

        public int getNumBeginWindowCalls() {
            return _countStartWindow;
        }
    }
    // Create dispatcher
    // fail on second window
    final TimeoutDESConsumer mockConsumer = new TimeoutDESConsumer(2);
    SelectingDatabusCombinedConsumer sdccMockConsumer = new SelectingDatabusCombinedConsumer((DatabusStreamConsumer) mockConsumer);
    List<String> sources = new ArrayList<String>();
    Map<Long, IdNamePair> sourcesMap = new HashMap<Long, IdNamePair>();
    for (int i = 1; i <= 3; ++i) {
        IdNamePair sourcePair = new IdNamePair((long) i, "source" + i);
        sources.add(sourcePair.getName());
        sourcesMap.put(sourcePair.getId(), sourcePair);
    }
    DatabusV2ConsumerRegistration consumerReg = new DatabusV2ConsumerRegistration(sdccMockConsumer, sources, null);
    List<DatabusV2ConsumerRegistration> allRegistrations = Arrays.asList(consumerReg);
    final ConsumerCallbackStats callbackStats = new ConsumerCallbackStats(0, "test", "test", true, false, null);
    final UnifiedClientStats unifiedStats = new UnifiedClientStats(0, "test", "test.unified");
    MultiConsumerCallback callback = new MultiConsumerCallback(allRegistrations, Executors.newFixedThreadPool(2), // 100 ms budget
    100, new StreamConsumerCallbackFactory(callbackStats, unifiedStats), callbackStats, unifiedStats, null, null);
    callback.setSourceMap(sourcesMap);
    List<DatabusSubscription> subs = DatabusSubscription.createSubscriptionList(sources);
    final RelayDispatcher dispatcher = new RelayDispatcher("dispatcher", _genericRelayConnStaticConfig, subs, new InMemoryPersistenceProvider(), destEventsBuf, callback, null, null, null, null, null);
    final Thread dispatcherThread = new Thread(dispatcher);
    log.info("starting dispatcher thread");
    dispatcherThread.start();
    // Generate RegisterRespone for schema
    HashMap<Long, List<RegisterResponseEntry>> schemaMap = new HashMap<Long, List<RegisterResponseEntry>>();
    List<RegisterResponseEntry> l1 = new ArrayList<RegisterResponseEntry>();
    List<RegisterResponseEntry> l2 = new ArrayList<RegisterResponseEntry>();
    List<RegisterResponseEntry> l3 = new ArrayList<RegisterResponseEntry>();
    l1.add(new RegisterResponseEntry(1L, (short) 1, SOURCE1_SCHEMA_STR));
    l2.add(new RegisterResponseEntry(2L, (short) 1, SOURCE2_SCHEMA_STR));
    l3.add(new RegisterResponseEntry(3L, (short) 1, SOURCE3_SCHEMA_STR));
    schemaMap.put(1L, l1);
    schemaMap.put(2L, l2);
    schemaMap.put(3L, l3);
    // Enqueue Necessary messages before starting dispatch
    dispatcher.enqueueMessage(SourcesMessage.createSetSourcesIdsMessage(sourcesMap.values()));
    dispatcher.enqueueMessage(SourcesMessage.createSetSourcesSchemasMessage(schemaMap));
    log.info("starting event dispatch");
    // comm channels between reader and writer
    Pipe pipe = Pipe.open();
    Pipe.SinkChannel writerStream = pipe.sink();
    Pipe.SourceChannel readerStream = pipe.source();
    writerStream.configureBlocking(true);
    /*
       *  Needed for DbusEventBuffer.readEvents() to exit their loops when no more data is available.
       *  With Pipe mimicking ChunkedBodyReadableByteChannel, we need to make Pipe non-blocking on the
       *  reader side to achieve the behavior that ChunkedBodyReadableByte channel provides.
       */
    readerStream.configureBlocking(false);
    // Event writer - Relay in the real world
    Checkpoint cp = Checkpoint.createFlexibleCheckpoint();
    // Event readers - Clients in the real world
    // Checkpoint pullerCheckpoint = Checkpoint.createFlexibleCheckpoint();
    DbusEventsStatisticsCollector clientStats = new DbusEventsStatisticsCollector(0, "client", true, false, null);
    DbusEventBufferReader reader = new DbusEventBufferReader(destEventsBuf, readerStream, null, clientStats);
    UncaughtExceptionTrackingThread tReader = new UncaughtExceptionTrackingThread(reader, "Reader");
    tReader.setDaemon(true);
    tReader.start();
    try {
        log.info("send both windows");
        StreamEventsResult streamRes = srcEventsBuf.streamEvents(cp, writerStream, new StreamEventsArgs(win1Size));
        // EOP events, presumably?
        Assert.assertEquals(// EOP events, presumably?
        "num events streamed should equal total number of events plus 2", numEvents + 2, streamRes.getNumEventsStreamed());
        TestUtil.assertWithBackoff(new ConditionCheck() {

            @Override
            public boolean check() {
                return 2 == mockConsumer.getNumBeginWindowCalls();
            }
        }, "second window processing started", 5000, log);
        dispatcher.shutdown();
        // remove the barrier
        mockConsumer.getLatch().countDown();
        TestUtil.assertWithBackoff(new ConditionCheck() {

            @Override
            public boolean check() {
                return !dispatcherThread.isAlive();
            }
        }, "Ensure Dispatcher thread is shutdown", 5000, log);
        TestUtil.assertWithBackoff(new ConditionCheck() {

            @Override
            public boolean check() {
                return 0 == mockConsumer.getNumRollbacks();
            }
        }, "Ensure No Rollback is called", 10, log);
    } finally {
        reader.stop();
    }
    log.info("end\n");
}

Example 9 with ConsumerCallbackStats

use of com.linkedin.databus.client.pub.mbean.ConsumerCallbackStats in project databus by linkedin.

the class DatabusV2RegistrationImpl method initializeStatsCollectors.

/**
 * Initialize Statistics Collectors
 */
protected void initializeStatsCollectors(String regId, int ownerId, MBeanServer mbeanServer) {
    _inboundEventsStatsCollector = new DbusEventsStatisticsCollector(ownerId, regId + STREAM_EVENT_STATS_SUFFIX_NAME, true, false, mbeanServer);
    _bootstrapEventsStatsCollector = new DbusEventsStatisticsCollector(ownerId, regId + BOOTSTRAP_EVENT_STATS_SUFFIX_NAME, true, false, mbeanServer);
    _relayConsumerStats = new ConsumerCallbackStats(ownerId, regId + RELAY_CONSUMER_STATS_SUFFIX_NAME, regId, true, false, new ConsumerCallbackStatsEvent());
    _bootstrapConsumerStats = new ConsumerCallbackStats(ownerId, regId + BOOTSTRAP_CONSUMER_STATS_SUFFIX_NAME, regId, true, false, new ConsumerCallbackStatsEvent());
    _unifiedClientStats = new UnifiedClientStats(ownerId, regId + UNIFIED_CLIENT_STATS_SUFFIX_NAME, regId, true, false, _client.getClientStaticConfig().getPullerThreadDeadnessThresholdMs(), new UnifiedClientStatsEvent());
}