Examples with DatabusSourcesConnection com.linkedin.databus.client.DatabusSourcesConnection used on opensource projects

Example 6 with DatabusSourcesConnection

use of com.linkedin.databus.client.DatabusSourcesConnection in project databus by linkedin.

the class TestDatabusRelayMain method testClientNoEventsResetConnection.

@Test
public /**
	 * test resetting connection when there is no events for some period of time
	 * @throws InterruptedException
	 * @throws InvalidConfigException
	 */
void testClientNoEventsResetConnection() throws InterruptedException, InvalidConfigException {
    LOG.setLevel(Level.ALL);
    DatabusRelayTestUtil.RelayRunner r1 = null;
    ClientRunner cr = null;
    try {
        String srcName = "com.linkedin.events.example.Settings";
        // create main relay with random generator
        int eventRatePerSec = 10;
        PhysicalSourceConfig srcConfig = DatabusRelayTestUtil.createPhysicalConfigBuilder((short) 1, DatabusRelayTestUtil.getPhysicalSrcName(srcName), "mock", 500, eventRatePerSec, new String[] { srcName });
        int relayPort = 11995;
        DatabusRelayMain relay = DatabusRelayTestUtil.createDatabusRelayWithSchemaReg(1001, relayPort, 10 * 1024 * 1024, new PhysicalSourceConfig[] { srcConfig }, SCHEMA_REGISTRY_DIR);
        Assert.assertNotEquals(relay, null);
        r1 = new DatabusRelayTestUtil.RelayRunner(relay);
        // async starts
        r1.start();
        DbusEventsTotalStats stats = relay.getInboundEventStatisticsCollector().getTotalStats();
        // start client in parallel
        String srcSubscriptionString = srcName;
        String serverName = "localhost:" + relayPort;
        ResetsCountingConsumer countingConsumer = new ResetsCountingConsumer();
        DatabusSourcesConnection clientConn = RelayEventProducer.createDatabusSourcesConnection("testProducer", serverName, srcSubscriptionString, countingConsumer, 1 * 1024 * 1024, 50000, 30 * 1000, 100, 15 * 1000, 1, true);
        cr = new ClientRunner(clientConn);
        cr.start();
        // generate some events
        TestUtil.sleep(1000);
        // pause event generator
        // and wait untill all the events are consumed
        // but since it is less then timeout the connection should NOT reset
        LOG.info("Sending pause to relay!");
        r1.pause();
        TestUtil.sleep(4000);
        LOG.info("no events, time less then threshold. Events=" + countingConsumer.getNumDataEvents() + "; resets = " + countingConsumer.getNumResets());
        Assert.assertEquals(countingConsumer.getNumResets(), 0);
        // generate more events, more time elapsed then the threshold, but since there are
        // events - NO reset
        r1.unpause();
        Thread.sleep(8000);
        LOG.info("some events, more time then timeout. Events=" + countingConsumer.getNumDataEvents() + "; resets = " + countingConsumer.getNumResets());
        Assert.assertEquals(countingConsumer.getNumResets(), 0);
        // stop events
        r1.pause();
        //set threshold to 0 completely disabling the feature
        clientConn.getRelayPullThread().setNoEventsConnectionResetTimeSec(0);
        Thread.sleep(8000);
        LOG.info("no events, more time then timeout, but feature disabled. Events=" + countingConsumer.getNumDataEvents() + "; resets = " + countingConsumer.getNumResets());
        Assert.assertEquals(countingConsumer.getNumResets(), 0);
        // enable the feature, and sleep for timeout
        clientConn.getRelayPullThread().setNoEventsConnectionResetTimeSec(5);
        // now wait with no events
        LOG.info("pause the producer. sleep for 6 sec, should reset");
        TestUtil.sleep(6000);
        LOG.info("Client stats=" + countingConsumer);
        LOG.info("Num resets=" + countingConsumer.getNumResets());
        LOG.info("Event windows generated=" + stats.getNumSysEvents());
        Assert.assertEquals(countingConsumer.getNumResets(), 0, "0 resets");
        Assert.assertEquals(countingConsumer.getNumDataEvents(), stats.getNumDataEvents());
        boolean stopped = r1.shutdown(2000);
        Assert.assertTrue(stopped);
        LOG.info("Relay r1 stopped");
        cr.shutdown();
        LOG.info("Client cr stopped");
        Assert.assertEquals(countingConsumer.getNumDataEvents(), stats.getNumDataEvents());
    } finally {
        cleanup(new DatabusRelayTestUtil.RelayRunner[] { r1 }, cr);
    }
}

Example 7 with DatabusSourcesConnection

use of com.linkedin.databus.client.DatabusSourcesConnection in project databus by linkedin.

the class TestDatabusRelayEvents method testV2Events.

/**
   * Stuffs an event buffer with both a v1 and a v2 event, then reads the buffer two ways:
   * first accepting only v1 events (verifying conversion of the v2 event to v1); then accepting
   * both v1 and v2 events.
   *
   * Note that the version of the _EOP_ events must match the version of the event factory,
   * regardless of the versions of any preceding "real" events.  (This matches DbusEventBuffer
   * behavior; see the serializeLongKeyEndOfPeriodMarker() call in endEvents() for details.)
   */
@Test
public void testV2Events() throws KeyTypeNotImplementedException, InvalidEventException, IOException, DatabusException {
    final Logger log = Logger.getLogger("TestDatabusRelayEvents.testV2Events");
    log.setLevel(Level.DEBUG);
    String[] srcs = { "com.linkedin.events.example.fake.FakeSchema" };
    String pSourceName = DatabusRelayTestUtil.getPhysicalSrcName(srcs[0]);
    short srcId = 2;
    short pId = 1;
    int relayPort = Utils.getAvailablePort(11993);
    // create relay
    final DatabusRelayMain relay1 = createRelay(relayPort, pId, srcs);
    DatabusRelayTestUtil.RelayRunner r1 = null;
    ClientRunner cr = null;
    try {
        //EventProducer[] producers = relay1.getProducers();
        r1 = new DatabusRelayTestUtil.RelayRunner(relay1);
        log.info("Relay created");
        DbusEventBufferMult bufMult = relay1.getEventBuffer();
        PhysicalPartition pPartition = new PhysicalPartition((int) pId, pSourceName);
        DbusEventBuffer buf = (DbusEventBuffer) bufMult.getDbusEventBufferAppendable(pPartition);
        log.info("create some events");
        long windowScn = 100L;
        ByteBuffer serializationBuffer = addEvent(windowScn, srcId, relay1.getSchemaRegistryService().fetchSchemaIdForSourceNameAndVersion(srcs[0], 2).getByteArray(), pId, DbusEventFactory.DBUS_EVENT_V2);
        ReadableByteChannel channel = Channels.newChannel(new ByteBufferInputStream(serializationBuffer));
        int readEvents = buf.readEvents(channel);
        log.info("successfully read in " + readEvents + " events ");
        channel.close();
        windowScn = 101L;
        serializationBuffer = addEvent(windowScn, srcId, relay1.getSchemaRegistryService().fetchSchemaIdForSourceNameAndVersion(srcs[0], 2).getByteArray(), pId, DbusEventFactory.DBUS_EVENT_V1);
        channel = Channels.newChannel(new ByteBufferInputStream(serializationBuffer));
        readEvents = buf.readEvents(channel);
        log.info("successfully read in " + readEvents + " events ");
        channel.close();
        log.info("starting relay on port " + relayPort);
        r1.start();
        //TestUtil.sleep(10*1000);
        // wait until relay comes up
        TestUtil.assertWithBackoff(new ConditionCheck() {

            @Override
            public boolean check() {
                return relay1.isRunningStatus();
            }
        }, "Relay hasn't come up completely ", 30000, LOG);
        log.info("now create client");
        String srcSubscriptionString = TestUtil.join(srcs, ",");
        String serverName = "localhost:" + relayPort;
        final EventsCountingConsumer countingConsumer = new EventsCountingConsumer();
        int id = (RngUtils.randomPositiveInt() % 10000) + 1;
        DatabusSourcesConnection clientConn = RelayEventProducer.createDatabusSourcesConnection("testProducer", id, serverName, srcSubscriptionString, countingConsumer, 1 * 1024 * 1024, 50000, 30 * 1000, 100, 15 * 1000, 1, true, DatabusClientNettyThreadPools.createNettyThreadPools(id), 0, DbusEventFactory.DBUS_EVENT_V1, 0);
        cr = new ClientRunner(clientConn);
        log.info("starting client");
        cr.start();
        // wait till client gets the event
        TestUtil.assertWithBackoff(new ConditionCheck() {

            @Override
            public boolean check() {
                int events = countingConsumer.getNumDataEvents();
                LOG.info("client got " + events + " events");
                return events == 2;
            }
        }, "Consumer didn't get 2 events ", 64 * 1024, LOG);
        // asserts
        Assert.assertEquals(countingConsumer.getNumDataEvents(), 2);
        Assert.assertEquals(countingConsumer.getNumWindows(), 2);
        Assert.assertEquals(countingConsumer.getNumDataEvents(DbusEventFactory.DBUS_EVENT_V1), 2);
        log.info("shutdown first client");
        clientConn.stop();
        cr.shutdown();
        TestUtil.sleep(1000);
        cr = null;
        log.info("start another client who understands V2");
        final EventsCountingConsumer countingConsumer1 = new EventsCountingConsumer();
        clientConn = RelayEventProducer.createDatabusSourcesConnection("testProducer", id, serverName, srcSubscriptionString, countingConsumer1, 1 * 1024 * 1024, 50000, 30 * 1000, 100, 15 * 1000, 1, true, DatabusClientNettyThreadPools.createNettyThreadPools(id), 0, DbusEventFactory.DBUS_EVENT_V2, 0);
        cr = new ClientRunner(clientConn);
        cr.start();
        log.info("wait till client gets the event");
        TestUtil.assertWithBackoff(new ConditionCheck() {

            @Override
            public boolean check() {
                int events = countingConsumer1.getNumDataEvents();
                LOG.debug("client got " + events + " events");
                return events == 2;
            }
        }, "Consumer didn't get 2 events ", 64 * 1024, LOG);
        // asserts
        Assert.assertEquals(countingConsumer1.getNumDataEvents(), 2);
        Assert.assertEquals(countingConsumer1.getNumWindows(), 2);
        Assert.assertEquals(countingConsumer1.getNumDataEvents(DbusEventFactory.DBUS_EVENT_V1), 1);
        Assert.assertEquals(countingConsumer1.getNumDataEvents(DbusEventFactory.DBUS_EVENT_V2), 1);
    } finally {
        cleanup(new DatabusRelayTestUtil.RelayRunner[] { r1 }, cr);
    }
}

Example 8 with DatabusSourcesConnection

use of com.linkedin.databus.client.DatabusSourcesConnection in project databus by linkedin.

the class TestDatabusRelayEvents method testEventConversion.

@Test
public /**
   * append event V2 to the buffer and stream it to the client
   * which only accepts events V1. Make sure it got converted
   */
void testEventConversion() throws InterruptedException, IOException, DatabusException {
    final Logger log = Logger.getLogger("TestDatabusRelayEvents.testEventConversion");
    log.setLevel(Level.INFO);
    DatabusRelayTestUtil.RelayRunner r1 = null;
    ClientRunner cr = null;
    try {
        String[] srcs = { "com.linkedin.events.example.fake.FakeSchema" };
        int pId = 1;
        int srcId = 2;
        int relayPort = Utils.getAvailablePort(11994);
        ;
        final DatabusRelayMain relay1 = createRelay(relayPort, pId, srcs);
        Assert.assertNotNull(relay1);
        r1 = new DatabusRelayTestUtil.RelayRunner(relay1);
        log.info("Relay created");
        DbusEventBufferMult bufMult = relay1.getEventBuffer();
        String pSourceName = DatabusRelayTestUtil.getPhysicalSrcName(srcs[0]);
        PhysicalPartition pPartition = new PhysicalPartition(pId, pSourceName);
        DbusEventBufferAppendable buf = bufMult.getDbusEventBufferAppendable(pPartition);
        DbusEventKey key = new DbusEventKey(123L);
        byte[] schemaId = relay1.getSchemaRegistryService().fetchSchemaIdForSourceNameAndVersion(srcs[0], 2).getByteArray();
        byte[] payload = RngUtils.randomString(100).getBytes(Charset.defaultCharset());
        DbusEventInfo eventInfo = new DbusEventInfo(DbusOpcode.UPSERT, 100L, (short) pId, (short) pId, 897L, (short) srcId, schemaId, payload, false, true);
        eventInfo.setEventSerializationVersion(DbusEventFactory.DBUS_EVENT_V2);
        buf.startEvents();
        buf.appendEvent(key, eventInfo, null);
        buf.endEvents(100L, null);
        r1.start();
        log.info("Relay started");
        // wait until relay comes up
        TestUtil.assertWithBackoff(new ConditionCheck() {

            @Override
            public boolean check() {
                return relay1.isRunningStatus();
            }
        }, "Relay hasn't come up completely ", 7000, LOG);
        // now create client:
        String srcSubscriptionString = TestUtil.join(srcs, ",");
        String serverName = "localhost:" + relayPort;
        final EventsCountingConsumer countingConsumer = new EventsCountingConsumer();
        int id = (RngUtils.randomPositiveInt() % 10000) + 1;
        DatabusSourcesConnection clientConn = RelayEventProducer.createDatabusSourcesConnection("testProducer", id, serverName, srcSubscriptionString, countingConsumer, 1 * 1024 * 1024, 50000, 30 * 1000, 100, 15 * 1000, 1, true, DatabusClientNettyThreadPools.createNettyThreadPools(id), 0, DbusEventFactory.DBUS_EVENT_V1, 0);
        cr = new ClientRunner(clientConn);
        cr.start();
        log.info("Consumer started");
        // wait till client gets the event
        TestUtil.assertWithBackoff(new ConditionCheck() {

            @Override
            public boolean check() {
                return countingConsumer.getNumDataEvents() == 1;
            }
        }, "Consumer didn't get any events ", 64 * 1024, LOG);
        // asserts
        Assert.assertEquals(1, countingConsumer.getNumDataEvents());
        Assert.assertEquals(1, countingConsumer.getNumWindows());
        Assert.assertEquals(1, countingConsumer.getNumDataEvents(DbusEventFactory.DBUS_EVENT_V1));
    } finally {
        cleanup(new DatabusRelayTestUtil.RelayRunner[] { r1 }, cr);
    }
}

Example 9 with DatabusSourcesConnection

use of com.linkedin.databus.client.DatabusSourcesConnection in project databus by linkedin.

the class TestDatabusRelayMain method testRelayEventGenerator.

@Test
public void testRelayEventGenerator() throws InterruptedException, InvalidConfigException {
    DatabusRelayTestUtil.RelayRunner r1 = null;
    //Logger.getRootLogger().setLevel(Level.INFO);
    final Logger log = Logger.getLogger("TestDatabusRelayMain.testRelayEventGenerator");
    //log.setLevel(Level.DEBUG);
    ClientRunner cr = null;
    try {
        String[][] srcNames = { { "com.linkedin.events.example.fake.FakeSchema", "com.linkedin.events.example.person.Person" } };
        log.info("create main relay with random generator");
        PhysicalSourceConfig[] srcConfigs = new PhysicalSourceConfig[srcNames.length];
        int i = 0;
        int eventRatePerSec = 20;
        for (String[] srcs : srcNames) {
            PhysicalSourceConfig src1 = DatabusRelayTestUtil.createPhysicalConfigBuilder((short) (i + 1), DatabusRelayTestUtil.getPhysicalSrcName(srcs[0]), "mock", 500, eventRatePerSec, srcs);
            srcConfigs[i++] = src1;
        }
        int relayPort = Utils.getAvailablePort(11993);
        final DatabusRelayMain relay1 = DatabusRelayTestUtil.createDatabusRelayWithSchemaReg(1001, relayPort, 10 * 1024 * 1024, srcConfigs, SCHEMA_REGISTRY_DIR);
        Assert.assertNotEquals(relay1, null);
        r1 = new DatabusRelayTestUtil.RelayRunner(relay1);
        log.info("async starts");
        r1.start();
        log.info("start client in parallel");
        String srcSubscriptionString = TestUtil.join(srcNames[0], ",");
        String serverName = "localhost:" + relayPort;
        final CountingConsumer countingConsumer = new CountingConsumer();
        DatabusSourcesConnection clientConn = RelayEventProducer.createDatabusSourcesConnection("testProducer", serverName, srcSubscriptionString, countingConsumer, 1 * 1024 * 1024, 50000, 30 * 1000, 100, 15 * 1000, 1, true);
        cr = new ClientRunner(clientConn);
        cr.start();
        log.info("terminating conditions");
        final DbusEventsTotalStats stats = relay1.getInboundEventStatisticsCollector().getTotalStats();
        long totalRunTime = 5000;
        long startTime = System.currentTimeMillis();
        do {
            log.info("numDataEvents=" + stats.getNumDataEvents() + " numWindows=" + stats.getNumSysEvents() + " size=" + stats.getSizeDataEvents());
            Thread.sleep(1000);
        } while ((System.currentTimeMillis() - startTime) < totalRunTime);
        r1.pause();
        log.info("Sending pause to relay!");
        log.info("numDataEvents=" + stats.getNumDataEvents() + " numWindows=" + stats.getNumSysEvents() + " size=" + stats.getSizeDataEvents());
        TestUtil.assertWithBackoff(new ConditionCheck() {

            @Override
            public boolean check() {
                boolean success = true;
                for (EventProducer p : relay1.getProducers()) {
                    if (!(success = success && p.isPaused()))
                        break;
                }
                return success;
            }
        }, "waiting for producers to pause", 4000, log);
        TestUtil.assertWithBackoff(new ConditionCheck() {

            @Override
            public boolean check() {
                log.debug("countingConsumer.getNumWindows()=" + countingConsumer.getNumWindows());
                return countingConsumer.getNumWindows() == stats.getNumSysEvents();
            }
        }, "wait until client got all events or for maxTimeout", 64 * 1024, log);
        log.info("Client stats=" + countingConsumer);
        log.info("Event windows generated=" + stats.getNumSysEvents());
        cr.shutdown(2000, log);
        log.info("Client cr stopped");
        Assert.assertEquals(countingConsumer.getNumDataEvents(), stats.getNumDataEvents());
        boolean stopped = r1.shutdown(2000);
        Assert.assertTrue(stopped);
        log.info("Relay r1 stopped");
    } finally {
        cleanup(new DatabusRelayTestUtil.RelayRunner[] { r1 }, cr);
    }
}

Example 10 with DatabusSourcesConnection

use of com.linkedin.databus.client.DatabusSourcesConnection in project databus by linkedin.

the class DatabusV2RegistrationImpl method createConnection.

/**
   * Factory method to create sources connection
   * @param connConfig
   * @param subs
   * @param candidateRelays
   * @param candidateBootstrapServers
   * @param eventBuffer
   * @param bootstrapBuffer
   * @return
   */
protected synchronized DatabusSourcesConnection createConnection(StaticConfig connConfig, List<DatabusSubscription> subs, Set<ServerInfo> candidateRelays, Set<ServerInfo> candidateBootstrapServers, DbusEventBuffer eventBuffer, DbusEventBuffer bootstrapBuffer) {
    _log.info("Creating Sources Connection : Candidate Relays :" + candidateRelays + ", CandidateBootstrapServers :" + candidateBootstrapServers + ", Subscriptions :" + subs);
    ConnectionStateFactory connStateFactory = new ConnectionStateFactory(DatabusSubscription.getStrList(subs));
    DatabusSourcesConnection sourcesConnection = new DatabusSourcesConnection(connConfig, subs, candidateRelays, candidateBootstrapServers, _streamConsumerRawRegistrations, _bootstrapConsumerRawRegistrations, eventBuffer, bootstrapBuffer, _client.getDefaultExecutorService(), _client.getContainerStatsCollector(), _inboundEventsStatsCollector, _bootstrapEventsStatsCollector, _relayConsumerStats, _bootstrapConsumerStats, _unifiedClientStats, _checkpointPersistenceProvider, _client.getRelayConnFactory(), _client.getBootstrapConnFactory(), _client.getHttpStatsCollector(), // This should make sure the checkpoint directory structure is compatible with V2.
    null, _client, // Used to uniquely identify logs and mbean name
    _id.toString(), _client.getEventFactory(), null, connStateFactory);
    return sourcesConnection;
}