Examples with TaskLocation io.druid.indexing.common.TaskLocation used on opensource projects

Example 1 with TaskLocation

use of io.druid.indexing.common.TaskLocation in project druid by druid-io.

the class KafkaIndexTaskClient method submitRequest.

private FullResponseHolder submitRequest(String id, HttpMethod method, String pathSuffix, String query, byte[] content, boolean retry) {
    final RetryPolicy retryPolicy = retryPolicyFactory.makeRetryPolicy();
    while (true) {
        FullResponseHolder response = null;
        Request request = null;
        TaskLocation location = TaskLocation.unknown();
        String path = String.format("%s/%s/%s", BASE_PATH, id, pathSuffix);
        Optional<TaskStatus> status = taskInfoProvider.getTaskStatus(id);
        if (!status.isPresent() || !status.get().isRunnable()) {
            throw new TaskNotRunnableException(String.format("Aborting request because task [%s] is not runnable", id));
        }
        try {
            location = taskInfoProvider.getTaskLocation(id);
            if (location.equals(TaskLocation.unknown())) {
                throw new NoTaskLocationException(String.format("No TaskLocation available for task [%s]", id));
            }
            // Netty throws some annoying exceptions if a connection can't be opened, which happens relatively frequently
            // for tasks that happen to still be starting up, so test the connection first to keep the logs clean.
            checkConnection(location.getHost(), location.getPort());
            try {
                URI serviceUri = new URI("http", null, location.getHost(), location.getPort(), path, query, null);
                request = new Request(method, serviceUri.toURL());
                // used to validate that we are talking to the correct worker
                request.addHeader(ChatHandlerResource.TASK_ID_HEADER, id);
                if (content.length > 0) {
                    request.setContent(MediaType.APPLICATION_JSON, content);
                }
                log.debug("HTTP %s: %s", method.getName(), serviceUri.toString());
                response = httpClient.go(request, new FullResponseHandler(Charsets.UTF_8), httpTimeout).get();
            } catch (Exception e) {
                Throwables.propagateIfInstanceOf(e.getCause(), IOException.class);
                Throwables.propagateIfInstanceOf(e.getCause(), ChannelException.class);
                throw Throwables.propagate(e);
            }
            int responseCode = response.getStatus().getCode();
            if (responseCode / 100 == 2) {
                return response;
            } else if (responseCode == 400) {
                // don't bother retrying if it's a bad request
                throw new IAE("Received 400 Bad Request with body: %s", response.getContent());
            } else {
                throw new IOException(String.format("Received status [%d]", responseCode));
            }
        } catch (IOException | ChannelException e) {
            // Since workers are free to move tasks around to different ports, there is a chance that a task may have been
            // moved but our view of its location has not been updated yet from ZK. To detect this case, we send a header
            // identifying our expected recipient in the request; if this doesn't correspond to the worker we messaged, the
            // worker will return an HTTP 404 with its ID in the response header. If we get a mismatching task ID, then
            // we will wait for a short period then retry the request indefinitely, expecting the task's location to
            // eventually be updated.
            final Duration delay;
            if (response != null && response.getStatus().equals(HttpResponseStatus.NOT_FOUND)) {
                String headerId = response.getResponse().headers().get(ChatHandlerResource.TASK_ID_HEADER);
                if (headerId != null && !headerId.equals(id)) {
                    log.warn("Expected worker to have taskId [%s] but has taskId [%s], will retry in [%d]s", id, headerId, TASK_MISMATCH_RETRY_DELAY_SECONDS);
                    delay = Duration.standardSeconds(TASK_MISMATCH_RETRY_DELAY_SECONDS);
                } else {
                    delay = retryPolicy.getAndIncrementRetryDelay();
                }
            } else {
                delay = retryPolicy.getAndIncrementRetryDelay();
            }
            String urlForLog = (request != null ? request.getUrl().toString() : String.format("http://%s:%d%s", location.getHost(), location.getPort(), path));
            if (!retry) {
                // if retry=false, we probably aren't too concerned if the operation doesn't succeed (i.e. the request was
                // for informational purposes only) so don't log a scary stack trace
                log.info("submitRequest failed for [%s], with message [%s]", urlForLog, e.getMessage());
                Throwables.propagate(e);
            } else if (delay == null) {
                log.warn(e, "Retries exhausted for [%s], last exception:", urlForLog);
                Throwables.propagate(e);
            } else {
                try {
                    final long sleepTime = delay.getMillis();
                    log.debug("Bad response HTTP [%s] from [%s]; will try again in [%s] (body/exception: [%s])", (response != null ? response.getStatus().getCode() : "no response"), urlForLog, new Duration(sleepTime).toString(), (response != null ? response.getContent() : e.getMessage()));
                    Thread.sleep(sleepTime);
                } catch (InterruptedException e2) {
                    Throwables.propagate(e2);
                }
            }
        } catch (NoTaskLocationException e) {
            log.info("No TaskLocation available for task [%s], this task may not have been assigned to a worker yet or " + "may have already completed", id);
            throw e;
        } catch (Exception e) {
            log.warn(e, "Exception while sending request");
            throw e;
        }
    }
}

Example 2 with TaskLocation

use of io.druid.indexing.common.TaskLocation in project druid by druid-io.

the class KafkaSupervisorTest method testBeginPublishAndQueueNextTasks.

@Test
public void testBeginPublishAndQueueNextTasks() throws Exception {
    final TaskLocation location = new TaskLocation("testHost", 1234);
    supervisor = getSupervisor(2, 2, true, "PT1M", null);
    addSomeEvents(100);
    Capture<Task> captured = Capture.newInstance(CaptureType.ALL);
    expect(taskMaster.getTaskQueue()).andReturn(Optional.of(taskQueue)).anyTimes();
    expect(taskMaster.getTaskRunner()).andReturn(Optional.of(taskRunner)).anyTimes();
    expect(taskRunner.getRunningTasks()).andReturn(Collections.EMPTY_LIST).anyTimes();
    expect(taskStorage.getActiveTasks()).andReturn(ImmutableList.<Task>of()).anyTimes();
    expect(indexerMetadataStorageCoordinator.getDataSourceMetadata(DATASOURCE)).andReturn(new KafkaDataSourceMetadata(null)).anyTimes();
    expect(taskQueue.add(capture(captured))).andReturn(true).times(4);
    taskRunner.registerListener(anyObject(TaskRunnerListener.class), anyObject(Executor.class));
    replayAll();
    supervisor.start();
    supervisor.runInternal();
    verifyAll();
    List<Task> tasks = captured.getValues();
    Collection workItems = new ArrayList<>();
    for (Task task : tasks) {
        workItems.add(new TestTaskRunnerWorkItem(task.getId(), null, location));
    }
    reset(taskStorage, taskRunner, taskClient, taskQueue);
    captured = Capture.newInstance(CaptureType.ALL);
    expect(taskStorage.getActiveTasks()).andReturn(tasks).anyTimes();
    for (Task task : tasks) {
        expect(taskStorage.getStatus(task.getId())).andReturn(Optional.of(TaskStatus.running(task.getId()))).anyTimes();
        expect(taskStorage.getTask(task.getId())).andReturn(Optional.of(task)).anyTimes();
    }
    expect(taskRunner.getRunningTasks()).andReturn(workItems).anyTimes();
    expect(taskClient.getStatusAsync(anyString())).andReturn(Futures.immediateFuture(KafkaIndexTask.Status.READING)).anyTimes();
    expect(taskClient.getStartTimeAsync(EasyMock.contains("sequenceName-0"))).andReturn(Futures.immediateFuture(DateTime.now().minusMinutes(2))).andReturn(Futures.immediateFuture(DateTime.now()));
    expect(taskClient.getStartTimeAsync(EasyMock.contains("sequenceName-1"))).andReturn(Futures.immediateFuture(DateTime.now())).times(2);
    expect(taskClient.pauseAsync(EasyMock.contains("sequenceName-0"))).andReturn(Futures.immediateFuture((Map<Integer, Long>) ImmutableMap.of(0, 10L, 1, 20L, 2, 30L))).andReturn(Futures.immediateFuture((Map<Integer, Long>) ImmutableMap.of(0, 10L, 1, 15L, 2, 35L)));
    expect(taskClient.setEndOffsetsAsync(EasyMock.contains("sequenceName-0"), EasyMock.eq(ImmutableMap.of(0, 10L, 1, 20L, 2, 35L)), EasyMock.eq(true))).andReturn(Futures.immediateFuture(true)).times(2);
    expect(taskQueue.add(capture(captured))).andReturn(true).times(2);
    replay(taskStorage, taskRunner, taskClient, taskQueue);
    supervisor.runInternal();
    verifyAll();
    for (Task task : captured.getValues()) {
        KafkaIndexTask kafkaIndexTask = (KafkaIndexTask) task;
        Assert.assertEquals(dataSchema, kafkaIndexTask.getDataSchema());
        Assert.assertEquals(KafkaTuningConfig.copyOf(tuningConfig), kafkaIndexTask.getTuningConfig());
        KafkaIOConfig taskConfig = kafkaIndexTask.getIOConfig();
        Assert.assertEquals("sequenceName-0", taskConfig.getBaseSequenceName());
        Assert.assertTrue("isUseTransaction", taskConfig.isUseTransaction());
        Assert.assertFalse("pauseAfterRead", taskConfig.isPauseAfterRead());
        Assert.assertEquals(KAFKA_TOPIC, taskConfig.getStartPartitions().getTopic());
        Assert.assertEquals(10L, (long) taskConfig.getStartPartitions().getPartitionOffsetMap().get(0));
        Assert.assertEquals(20L, (long) taskConfig.getStartPartitions().getPartitionOffsetMap().get(1));
        Assert.assertEquals(35L, (long) taskConfig.getStartPartitions().getPartitionOffsetMap().get(2));
    }
}

Example 3 with TaskLocation

use of io.druid.indexing.common.TaskLocation in project druid by druid-io.

the class KafkaSupervisorTest method testDiscoverExistingPublishingTask.

@Test
public void testDiscoverExistingPublishingTask() throws Exception {
    final TaskLocation location = new TaskLocation("testHost", 1234);
    supervisor = getSupervisor(1, 1, true, "PT1H", null);
    addSomeEvents(1);
    Task task = createKafkaIndexTask("id1", DATASOURCE, "sequenceName-0", new KafkaPartitions("topic", ImmutableMap.of(0, 0L, 1, 0L, 2, 0L)), new KafkaPartitions("topic", ImmutableMap.of(0, Long.MAX_VALUE, 1, Long.MAX_VALUE, 2, Long.MAX_VALUE)), null);
    Collection workItems = new ArrayList<>();
    workItems.add(new TestTaskRunnerWorkItem(task.getId(), null, location));
    Capture<KafkaIndexTask> captured = Capture.newInstance();
    expect(taskMaster.getTaskQueue()).andReturn(Optional.of(taskQueue)).anyTimes();
    expect(taskMaster.getTaskRunner()).andReturn(Optional.of(taskRunner)).anyTimes();
    expect(taskRunner.getRunningTasks()).andReturn(workItems).anyTimes();
    expect(taskStorage.getActiveTasks()).andReturn(ImmutableList.of(task)).anyTimes();
    expect(taskStorage.getStatus("id1")).andReturn(Optional.of(TaskStatus.running("id1"))).anyTimes();
    expect(taskStorage.getTask("id1")).andReturn(Optional.of(task)).anyTimes();
    expect(indexerMetadataStorageCoordinator.getDataSourceMetadata(DATASOURCE)).andReturn(new KafkaDataSourceMetadata(null)).anyTimes();
    expect(taskClient.getStatusAsync("id1")).andReturn(Futures.immediateFuture(KafkaIndexTask.Status.PUBLISHING));
    expect(taskClient.getCurrentOffsetsAsync("id1", false)).andReturn(Futures.immediateFuture((Map<Integer, Long>) ImmutableMap.of(0, 10L, 1, 20L, 2, 30L)));
    expect(taskClient.getCurrentOffsets("id1", true)).andReturn(ImmutableMap.of(0, 10L, 1, 20L, 2, 30L));
    expect(taskQueue.add(capture(captured))).andReturn(true);
    taskRunner.registerListener(anyObject(TaskRunnerListener.class), anyObject(Executor.class));
    replayAll();
    supervisor.start();
    supervisor.runInternal();
    SupervisorReport report = supervisor.getStatus();
    verifyAll();
    Assert.assertEquals(DATASOURCE, report.getId());
    Assert.assertTrue(report.getPayload() instanceof KafkaSupervisorReport.KafkaSupervisorReportPayload);
    KafkaSupervisorReport.KafkaSupervisorReportPayload payload = (KafkaSupervisorReport.KafkaSupervisorReportPayload) report.getPayload();
    Assert.assertEquals(DATASOURCE, payload.getDataSource());
    Assert.assertEquals(3600L, (long) payload.getDurationSeconds());
    Assert.assertEquals(NUM_PARTITIONS, (int) payload.getPartitions());
    Assert.assertEquals(1, (int) payload.getReplicas());
    Assert.assertEquals(KAFKA_TOPIC, payload.getTopic());
    Assert.assertEquals(0, payload.getActiveTasks().size());
    Assert.assertEquals(1, payload.getPublishingTasks().size());
    TaskReportData publishingReport = payload.getPublishingTasks().get(0);
    Assert.assertEquals("id1", publishingReport.getId());
    Assert.assertEquals(ImmutableMap.of(0, 0L, 1, 0L, 2, 0L), publishingReport.getStartingOffsets());
    Assert.assertEquals(ImmutableMap.of(0, 10L, 1, 20L, 2, 30L), publishingReport.getCurrentOffsets());
    KafkaIndexTask capturedTask = captured.getValue();
    Assert.assertEquals(dataSchema, capturedTask.getDataSchema());
    Assert.assertEquals(KafkaTuningConfig.copyOf(tuningConfig), capturedTask.getTuningConfig());
    KafkaIOConfig capturedTaskConfig = capturedTask.getIOConfig();
    Assert.assertEquals(kafkaHost, capturedTaskConfig.getConsumerProperties().get("bootstrap.servers"));
    Assert.assertEquals("myCustomValue", capturedTaskConfig.getConsumerProperties().get("myCustomKey"));
    Assert.assertEquals("sequenceName-0", capturedTaskConfig.getBaseSequenceName());
    Assert.assertTrue("isUseTransaction", capturedTaskConfig.isUseTransaction());
    Assert.assertFalse("pauseAfterRead", capturedTaskConfig.isPauseAfterRead());
    // check that the new task was created with starting offsets matching where the publishing task finished
    Assert.assertEquals(KAFKA_TOPIC, capturedTaskConfig.getStartPartitions().getTopic());
    Assert.assertEquals(10L, (long) capturedTaskConfig.getStartPartitions().getPartitionOffsetMap().get(0));
    Assert.assertEquals(20L, (long) capturedTaskConfig.getStartPartitions().getPartitionOffsetMap().get(1));
    Assert.assertEquals(30L, (long) capturedTaskConfig.getStartPartitions().getPartitionOffsetMap().get(2));
    Assert.assertEquals(KAFKA_TOPIC, capturedTaskConfig.getEndPartitions().getTopic());
    Assert.assertEquals(Long.MAX_VALUE, (long) capturedTaskConfig.getEndPartitions().getPartitionOffsetMap().get(0));
    Assert.assertEquals(Long.MAX_VALUE, (long) capturedTaskConfig.getEndPartitions().getPartitionOffsetMap().get(1));
    Assert.assertEquals(Long.MAX_VALUE, (long) capturedTaskConfig.getEndPartitions().getPartitionOffsetMap().get(2));
}

Example 4 with TaskLocation

use of io.druid.indexing.common.TaskLocation in project druid by druid-io.

the class KafkaSupervisorTest method testDiscoverExistingPublishingTaskWithDifferentPartitionAllocation.

@Test
public void testDiscoverExistingPublishingTaskWithDifferentPartitionAllocation() throws Exception {
    final TaskLocation location = new TaskLocation("testHost", 1234);
    supervisor = getSupervisor(1, 1, true, "PT1H", null);
    addSomeEvents(1);
    Task task = createKafkaIndexTask("id1", DATASOURCE, "sequenceName-0", new KafkaPartitions("topic", ImmutableMap.of(0, 0L, 2, 0L)), new KafkaPartitions("topic", ImmutableMap.of(0, Long.MAX_VALUE, 2, Long.MAX_VALUE)), null);
    Collection workItems = new ArrayList<>();
    workItems.add(new TestTaskRunnerWorkItem(task.getId(), null, location));
    Capture<KafkaIndexTask> captured = Capture.newInstance();
    expect(taskMaster.getTaskQueue()).andReturn(Optional.of(taskQueue)).anyTimes();
    expect(taskMaster.getTaskRunner()).andReturn(Optional.of(taskRunner)).anyTimes();
    expect(taskRunner.getRunningTasks()).andReturn(workItems).anyTimes();
    expect(taskStorage.getActiveTasks()).andReturn(ImmutableList.of(task)).anyTimes();
    expect(taskStorage.getStatus("id1")).andReturn(Optional.of(TaskStatus.running("id1"))).anyTimes();
    expect(taskStorage.getTask("id1")).andReturn(Optional.of(task)).anyTimes();
    expect(indexerMetadataStorageCoordinator.getDataSourceMetadata(DATASOURCE)).andReturn(new KafkaDataSourceMetadata(null)).anyTimes();
    expect(taskClient.getStatusAsync("id1")).andReturn(Futures.immediateFuture(KafkaIndexTask.Status.PUBLISHING));
    expect(taskClient.getCurrentOffsetsAsync("id1", false)).andReturn(Futures.immediateFuture((Map<Integer, Long>) ImmutableMap.of(0, 10L, 2, 30L)));
    expect(taskClient.getCurrentOffsets("id1", true)).andReturn(ImmutableMap.of(0, 10L, 2, 30L));
    expect(taskQueue.add(capture(captured))).andReturn(true);
    taskRunner.registerListener(anyObject(TaskRunnerListener.class), anyObject(Executor.class));
    replayAll();
    supervisor.start();
    supervisor.runInternal();
    SupervisorReport report = supervisor.getStatus();
    verifyAll();
    Assert.assertEquals(DATASOURCE, report.getId());
    Assert.assertTrue(report.getPayload() instanceof KafkaSupervisorReport.KafkaSupervisorReportPayload);
    KafkaSupervisorReport.KafkaSupervisorReportPayload payload = (KafkaSupervisorReport.KafkaSupervisorReportPayload) report.getPayload();
    Assert.assertEquals(DATASOURCE, payload.getDataSource());
    Assert.assertEquals(3600L, (long) payload.getDurationSeconds());
    Assert.assertEquals(NUM_PARTITIONS, (int) payload.getPartitions());
    Assert.assertEquals(1, (int) payload.getReplicas());
    Assert.assertEquals(KAFKA_TOPIC, payload.getTopic());
    Assert.assertEquals(0, payload.getActiveTasks().size());
    Assert.assertEquals(1, payload.getPublishingTasks().size());
    TaskReportData publishingReport = payload.getPublishingTasks().get(0);
    Assert.assertEquals("id1", publishingReport.getId());
    Assert.assertEquals(ImmutableMap.of(0, 0L, 2, 0L), publishingReport.getStartingOffsets());
    Assert.assertEquals(ImmutableMap.of(0, 10L, 2, 30L), publishingReport.getCurrentOffsets());
    KafkaIndexTask capturedTask = captured.getValue();
    Assert.assertEquals(dataSchema, capturedTask.getDataSchema());
    Assert.assertEquals(KafkaTuningConfig.copyOf(tuningConfig), capturedTask.getTuningConfig());
    KafkaIOConfig capturedTaskConfig = capturedTask.getIOConfig();
    Assert.assertEquals(kafkaHost, capturedTaskConfig.getConsumerProperties().get("bootstrap.servers"));
    Assert.assertEquals("myCustomValue", capturedTaskConfig.getConsumerProperties().get("myCustomKey"));
    Assert.assertEquals("sequenceName-0", capturedTaskConfig.getBaseSequenceName());
    Assert.assertTrue("isUseTransaction", capturedTaskConfig.isUseTransaction());
    Assert.assertFalse("pauseAfterRead", capturedTaskConfig.isPauseAfterRead());
    // check that the new task was created with starting offsets matching where the publishing task finished
    Assert.assertEquals(KAFKA_TOPIC, capturedTaskConfig.getStartPartitions().getTopic());
    Assert.assertEquals(10L, (long) capturedTaskConfig.getStartPartitions().getPartitionOffsetMap().get(0));
    Assert.assertEquals(0L, (long) capturedTaskConfig.getStartPartitions().getPartitionOffsetMap().get(1));
    Assert.assertEquals(30L, (long) capturedTaskConfig.getStartPartitions().getPartitionOffsetMap().get(2));
    Assert.assertEquals(KAFKA_TOPIC, capturedTaskConfig.getEndPartitions().getTopic());
    Assert.assertEquals(Long.MAX_VALUE, (long) capturedTaskConfig.getEndPartitions().getPartitionOffsetMap().get(0));
    Assert.assertEquals(Long.MAX_VALUE, (long) capturedTaskConfig.getEndPartitions().getPartitionOffsetMap().get(1));
    Assert.assertEquals(Long.MAX_VALUE, (long) capturedTaskConfig.getEndPartitions().getPartitionOffsetMap().get(2));
}

Example 5 with TaskLocation

use of io.druid.indexing.common.TaskLocation in project druid by druid-io.

the class KafkaSupervisor method possiblyRegisterListener.

public void possiblyRegisterListener() {
    if (listenerRegistered) {
        return;
    }
    Optional<TaskRunner> taskRunner = taskMaster.getTaskRunner();
    if (taskRunner.isPresent()) {
        taskRunner.get().registerListener(new TaskRunnerListener() {

            @Override
            public String getListenerId() {
                return supervisorId;
            }

            @Override
            public void locationChanged(final String taskId, final TaskLocation newLocation) {
            // do nothing
            }

            @Override
            public void statusChanged(String taskId, TaskStatus status) {
                notices.add(new RunNotice());
            }
        }, MoreExecutors.sameThreadExecutor());
        listenerRegistered = true;
    }
}