Examples with ServiceEmitter org.apache.druid.java.util.emitter.service.ServiceEmitter used on opensource projects

Example 11 with ServiceEmitter

use of org.apache.druid.java.util.emitter.service.ServiceEmitter in project druid by druid-io.

the class MetricsEmittingQueryProcessingPoolTest method testNonPrioritizedExecutorDelegate.

@Test
public void testNonPrioritizedExecutorDelegate() {
    ListeningExecutorService service = Mockito.mock(ListeningExecutorService.class);
    ExecutorServiceMonitor monitor = new ExecutorServiceMonitor();
    MetricsEmittingQueryProcessingPool processingPool = new MetricsEmittingQueryProcessingPool(service, monitor);
    Assert.assertSame(service, processingPool.delegate());
    ServiceEmitter serviceEmitter = Mockito.mock(ServiceEmitter.class);
    monitor.doMonitor(serviceEmitter);
    Mockito.verifyNoInteractions(serviceEmitter);
}

Example 12 with ServiceEmitter

use of org.apache.druid.java.util.emitter.service.ServiceEmitter in project druid by druid-io.

the class DefaultQueryMetricsTest method testDefaultQueryMetricsMetricNamesAndUnits.

@Test
public void testDefaultQueryMetricsMetricNamesAndUnits() {
    CachingEmitter cachingEmitter = new CachingEmitter();
    ServiceEmitter serviceEmitter = new ServiceEmitter("", "", cachingEmitter);
    DefaultQueryMetrics<Query<?>> queryMetrics = new DefaultQueryMetrics<>();
    testQueryMetricsDefaultMetricNamesAndUnits(cachingEmitter, serviceEmitter, queryMetrics);
}

Example 13 with ServiceEmitter

use of org.apache.druid.java.util.emitter.service.ServiceEmitter in project druid by druid-io.

the class MemcachedCache method create.

public static MemcachedCache create(final MemcachedCacheConfig config) {
    final ConcurrentMap<String, AtomicLong> counters = new ConcurrentHashMap<>();
    final ConcurrentMap<String, AtomicLong> meters = new ConcurrentHashMap<>();
    final AbstractMonitor monitor = new AbstractMonitor() {

        final AtomicReference<Map<String, Long>> priorValues = new AtomicReference<Map<String, Long>>(new HashMap<String, Long>());

        @Override
        public boolean doMonitor(ServiceEmitter emitter) {
            final Map<String, Long> priorValues = this.priorValues.get();
            final Map<String, Long> currentValues = getCurrentValues();
            final ServiceMetricEvent.Builder builder = ServiceMetricEvent.builder();
            for (Map.Entry<String, Long> entry : currentValues.entrySet()) {
                emitter.emit(builder.setDimension("memcached metric", entry.getKey()).build("query/cache/memcached/total", entry.getValue()));
                final Long prior = priorValues.get(entry.getKey());
                if (prior != null) {
                    emitter.emit(builder.setDimension("memcached metric", entry.getKey()).build("query/cache/memcached/delta", entry.getValue() - prior));
                }
            }
            if (!this.priorValues.compareAndSet(priorValues, currentValues)) {
                log.error("Prior value changed while I was reporting! updating anyways");
                this.priorValues.set(currentValues);
            }
            return true;
        }

        private Map<String, Long> getCurrentValues() {
            final ImmutableMap.Builder<String, Long> builder = ImmutableMap.builder();
            for (Map.Entry<String, AtomicLong> entry : counters.entrySet()) {
                builder.put(entry.getKey(), entry.getValue().get());
            }
            for (Map.Entry<String, AtomicLong> entry : meters.entrySet()) {
                builder.put(entry.getKey(), entry.getValue().get());
            }
            return builder.build();
        }
    };
    try {
        LZ4Transcoder transcoder = new LZ4Transcoder(config.getMaxObjectSize());
        // always use compression
        transcoder.setCompressionThreshold(0);
        OperationQueueFactory opQueueFactory;
        long maxQueueBytes = config.getMaxOperationQueueSize();
        if (maxQueueBytes > 0) {
            opQueueFactory = new MemcachedOperationQueueFactory(maxQueueBytes);
        } else {
            opQueueFactory = new LinkedOperationQueueFactory();
        }
        final Predicate<String> interesting = new Predicate<String>() {

            // See net.spy.memcached.MemcachedConnection.registerMetrics()
            private final Set<String> interestingMetrics = ImmutableSet.of("[MEM] Reconnecting Nodes (ReconnectQueue)", // "[MEM] Shutting Down Nodes (NodesToShutdown)", // Busted
            "[MEM] Request Rate: All", "[MEM] Average Bytes written to OS per write", "[MEM] Average Bytes read from OS per read", "[MEM] Average Time on wire for operations (µs)", "[MEM] Response Rate: All (Failure + Success + Retry)", "[MEM] Response Rate: Retry", "[MEM] Response Rate: Failure", "[MEM] Response Rate: Success");

            @Override
            public boolean apply(@Nullable String input) {
                return input != null && interestingMetrics.contains(input);
            }
        };
        final MetricCollector metricCollector = new MetricCollector() {

            @Override
            public void addCounter(String name) {
                if (!interesting.apply(name)) {
                    return;
                }
                counters.putIfAbsent(name, new AtomicLong(0L));
                if (log.isDebugEnabled()) {
                    log.debug("Add Counter [%s]", name);
                }
            }

            @Override
            public void removeCounter(String name) {
                if (log.isDebugEnabled()) {
                    log.debug("Ignoring request to remove [%s]", name);
                }
            }

            @Override
            public void incrementCounter(String name) {
                if (!interesting.apply(name)) {
                    return;
                }
                AtomicLong counter = counters.get(name);
                if (counter == null) {
                    counters.putIfAbsent(name, new AtomicLong(0));
                    counter = counters.get(name);
                }
                counter.incrementAndGet();
                if (log.isDebugEnabled()) {
                    log.debug("Increment [%s]", name);
                }
            }

            @Override
            public void incrementCounter(String name, int amount) {
                if (!interesting.apply(name)) {
                    return;
                }
                AtomicLong counter = counters.get(name);
                if (counter == null) {
                    counters.putIfAbsent(name, new AtomicLong(0));
                    counter = counters.get(name);
                }
                counter.addAndGet(amount);
                if (log.isDebugEnabled()) {
                    log.debug("Increment [%s] %d", name, amount);
                }
            }

            @Override
            public void decrementCounter(String name) {
                if (!interesting.apply(name)) {
                    return;
                }
                AtomicLong counter = counters.get(name);
                if (counter == null) {
                    counters.putIfAbsent(name, new AtomicLong(0));
                    counter = counters.get(name);
                }
                counter.decrementAndGet();
                if (log.isDebugEnabled()) {
                    log.debug("Decrement [%s]", name);
                }
            }

            @Override
            public void decrementCounter(String name, int amount) {
                if (!interesting.apply(name)) {
                    return;
                }
                AtomicLong counter = counters.get(name);
                if (counter == null) {
                    counters.putIfAbsent(name, new AtomicLong(0L));
                    counter = counters.get(name);
                }
                counter.addAndGet(-amount);
                if (log.isDebugEnabled()) {
                    log.debug("Decrement [%s] %d", name, amount);
                }
            }

            @Override
            public void addMeter(String name) {
                if (!interesting.apply(name)) {
                    return;
                }
                meters.putIfAbsent(name, new AtomicLong(0L));
                if (log.isDebugEnabled()) {
                    log.debug("Adding meter [%s]", name);
                }
            }

            @Override
            public void removeMeter(String name) {
                if (!interesting.apply(name)) {
                    return;
                }
                if (log.isDebugEnabled()) {
                    log.debug("Ignoring request to remove meter [%s]", name);
                }
            }

            @Override
            public void markMeter(String name) {
                if (!interesting.apply(name)) {
                    return;
                }
                AtomicLong meter = meters.get(name);
                if (meter == null) {
                    meters.putIfAbsent(name, new AtomicLong(0L));
                    meter = meters.get(name);
                }
                meter.incrementAndGet();
                if (log.isDebugEnabled()) {
                    log.debug("Increment counter [%s]", name);
                }
            }

            @Override
            public void addHistogram(String name) {
                log.debug("Ignoring add histogram [%s]", name);
            }

            @Override
            public void removeHistogram(String name) {
                log.debug("Ignoring remove histogram [%s]", name);
            }

            @Override
            public void updateHistogram(String name, int amount) {
                log.debug("Ignoring update histogram [%s]: %d", name, amount);
            }
        };
        final ConnectionFactory connectionFactory = new MemcachedCustomConnectionFactoryBuilder().setKetamaNodeRepetitions(1000).setHashAlg(MURMUR3_128).setProtocol(ConnectionFactoryBuilder.Protocol.valueOf(StringUtils.toUpperCase(config.getProtocol()))).setLocatorType(ConnectionFactoryBuilder.Locator.valueOf(StringUtils.toUpperCase(config.getLocator()))).setDaemon(true).setFailureMode(FailureMode.Cancel).setTranscoder(transcoder).setShouldOptimize(true).setOpQueueMaxBlockTime(config.getTimeout()).setOpTimeout(config.getTimeout()).setReadBufferSize(config.getReadBufferSize()).setOpQueueFactory(opQueueFactory).setMetricCollector(metricCollector).setEnableMetrics(// Not as scary as it sounds
        MetricType.DEBUG).build();
        final List<InetSocketAddress> hosts = AddrUtil.getAddresses(config.getHosts());
        final Supplier<ResourceHolder<MemcachedClientIF>> clientSupplier;
        if (config.getNumConnections() > 1) {
            clientSupplier = new MemcacheClientPool(config.getNumConnections(), new Supplier<MemcachedClientIF>() {

                @Override
                public MemcachedClientIF get() {
                    try {
                        return new MemcachedClient(connectionFactory, hosts);
                    } catch (IOException e) {
                        log.error(e, "Unable to create memcached client");
                        throw new RuntimeException(e);
                    }
                }
            });
        } else {
            clientSupplier = Suppliers.ofInstance(StupidResourceHolder.create(new MemcachedClient(connectionFactory, hosts)));
        }
        return new MemcachedCache(clientSupplier, config, monitor);
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
}

Example 14 with ServiceEmitter

use of org.apache.druid.java.util.emitter.service.ServiceEmitter in project druid by druid-io.

the class SegmentAllocateActionTest method setUp.

@Before
public void setUp() {
    ServiceEmitter emitter = EasyMock.createMock(ServiceEmitter.class);
    EmittingLogger.registerEmitter(emitter);
    EasyMock.replay(emitter);
}

Example 15 with ServiceEmitter

use of org.apache.druid.java.util.emitter.service.ServiceEmitter in project druid by druid-io.

the class RemoteTaskRunnerTest method testStatusListenerEventDataNullShouldNotThrowException.

@Test
public void testStatusListenerEventDataNullShouldNotThrowException() throws Exception {
    // Set up mock emitter to verify log alert when exception is thrown inside the status listener
    Worker worker = EasyMock.createMock(Worker.class);
    EasyMock.expect(worker.getHost()).andReturn("host").atLeastOnce();
    EasyMock.replay(worker);
    ServiceEmitter emitter = EasyMock.createMock(ServiceEmitter.class);
    Capture<EmittingLogger.EmittingAlertBuilder> capturedArgument = Capture.newInstance();
    emitter.emit(EasyMock.capture(capturedArgument));
    EasyMock.expectLastCall().atLeastOnce();
    EmittingLogger.registerEmitter(emitter);
    EasyMock.replay(emitter);
    PathChildrenCache cache = new PathChildrenCache(cf, "/test", true);
    testStartWithNoWorker();
    cache.getListenable().addListener(remoteTaskRunner.getStatusListener(worker, new ZkWorker(worker, cache, jsonMapper), null));
    cache.start(PathChildrenCache.StartMode.POST_INITIALIZED_EVENT);
    // Status listener will recieve event with null data
    Assert.assertTrue(TestUtils.conditionValid(() -> cache.getCurrentData().size() == 1));
    // Verify that the log emitter was called
    EasyMock.verify(worker);
    EasyMock.verify(emitter);
    Map<String, Object> alertDataMap = capturedArgument.getValue().build(null).getDataMap();
    Assert.assertTrue(alertDataMap.containsKey("znode"));
    Assert.assertNull(alertDataMap.get("znode"));
// Status listener should successfully completes without throwing exception
}