Examples with SegmentIdentifier io.druid.segment.realtime.appenderator.SegmentIdentifier used on opensource projects

Example 1 with SegmentIdentifier

use of io.druid.segment.realtime.appenderator.SegmentIdentifier in project druid by druid-io.

the class KafkaIndexTask method run.

@Override
public TaskStatus run(final TaskToolbox toolbox) throws Exception {
    log.info("Starting up!");
    startTime = DateTime.now();
    mapper = toolbox.getObjectMapper();
    status = Status.STARTING;
    if (chatHandlerProvider.isPresent()) {
        log.info("Found chat handler of class[%s]", chatHandlerProvider.get().getClass().getName());
        chatHandlerProvider.get().register(getId(), this, false);
    } else {
        log.warn("No chat handler detected");
    }
    runThread = Thread.currentThread();
    // Set up FireDepartmentMetrics
    final FireDepartment fireDepartmentForMetrics = new FireDepartment(dataSchema, new RealtimeIOConfig(null, null, null), null);
    fireDepartmentMetrics = fireDepartmentForMetrics.getMetrics();
    toolbox.getMonitorScheduler().addMonitor(new RealtimeMetricsMonitor(ImmutableList.of(fireDepartmentForMetrics), ImmutableMap.of(DruidMetrics.TASK_ID, new String[] { getId() })));
    try (final Appenderator appenderator0 = newAppenderator(fireDepartmentMetrics, toolbox);
        final FiniteAppenderatorDriver driver = newDriver(appenderator0, toolbox, fireDepartmentMetrics);
        final KafkaConsumer<byte[], byte[]> consumer = newConsumer()) {
        appenderator = appenderator0;
        final String topic = ioConfig.getStartPartitions().getTopic();
        // Start up, set up initial offsets.
        final Object restoredMetadata = driver.startJob();
        if (restoredMetadata == null) {
            nextOffsets.putAll(ioConfig.getStartPartitions().getPartitionOffsetMap());
        } else {
            final Map<String, Object> restoredMetadataMap = (Map) restoredMetadata;
            final KafkaPartitions restoredNextPartitions = toolbox.getObjectMapper().convertValue(restoredMetadataMap.get(METADATA_NEXT_PARTITIONS), KafkaPartitions.class);
            nextOffsets.putAll(restoredNextPartitions.getPartitionOffsetMap());
            // Sanity checks.
            if (!restoredNextPartitions.getTopic().equals(ioConfig.getStartPartitions().getTopic())) {
                throw new ISE("WTF?! Restored topic[%s] but expected topic[%s]", restoredNextPartitions.getTopic(), ioConfig.getStartPartitions().getTopic());
            }
            if (!nextOffsets.keySet().equals(ioConfig.getStartPartitions().getPartitionOffsetMap().keySet())) {
                throw new ISE("WTF?! Restored partitions[%s] but expected partitions[%s]", nextOffsets.keySet(), ioConfig.getStartPartitions().getPartitionOffsetMap().keySet());
            }
        }
        // Set up sequenceNames.
        final Map<Integer, String> sequenceNames = Maps.newHashMap();
        for (Integer partitionNum : nextOffsets.keySet()) {
            sequenceNames.put(partitionNum, String.format("%s_%s", ioConfig.getBaseSequenceName(), partitionNum));
        }
        // Set up committer.
        final Supplier<Committer> committerSupplier = new Supplier<Committer>() {

            @Override
            public Committer get() {
                final Map<Integer, Long> snapshot = ImmutableMap.copyOf(nextOffsets);
                return new Committer() {

                    @Override
                    public Object getMetadata() {
                        return ImmutableMap.of(METADATA_NEXT_PARTITIONS, new KafkaPartitions(ioConfig.getStartPartitions().getTopic(), snapshot));
                    }

                    @Override
                    public void run() {
                    // Do nothing.
                    }
                };
            }
        };
        Set<Integer> assignment = assignPartitionsAndSeekToNext(consumer, topic);
        // Main loop.
        // Could eventually support leader/follower mode (for keeping replicas more in sync)
        boolean stillReading = !assignment.isEmpty();
        status = Status.READING;
        try {
            while (stillReading) {
                if (possiblyPause(assignment)) {
                    // The partition assignments may have changed while paused by a call to setEndOffsets() so reassign
                    // partitions upon resuming. This is safe even if the end offsets have not been modified.
                    assignment = assignPartitionsAndSeekToNext(consumer, topic);
                    if (assignment.isEmpty()) {
                        log.info("All partitions have been fully read");
                        publishOnStop = true;
                        stopRequested = true;
                    }
                }
                if (stopRequested) {
                    break;
                }
                // The retrying business is because the KafkaConsumer throws OffsetOutOfRangeException if the seeked-to
                // offset is not present in the topic-partition. This can happen if we're asking a task to read from data
                // that has not been written yet (which is totally legitimate). So let's wait for it to show up.
                ConsumerRecords<byte[], byte[]> records = ConsumerRecords.empty();
                try {
                    records = consumer.poll(POLL_TIMEOUT);
                } catch (OffsetOutOfRangeException e) {
                    log.warn("OffsetOutOfRangeException with message [%s]", e.getMessage());
                    possiblyResetOffsetsOrWait(e.offsetOutOfRangePartitions(), consumer, toolbox);
                    stillReading = ioConfig.isPauseAfterRead() || !assignment.isEmpty();
                }
                for (ConsumerRecord<byte[], byte[]> record : records) {
                    if (log.isTraceEnabled()) {
                        log.trace("Got topic[%s] partition[%d] offset[%,d].", record.topic(), record.partition(), record.offset());
                    }
                    if (record.offset() < endOffsets.get(record.partition())) {
                        if (record.offset() != nextOffsets.get(record.partition())) {
                            throw new ISE("WTF?! Got offset[%,d] after offset[%,d] in partition[%d].", record.offset(), nextOffsets.get(record.partition()), record.partition());
                        }
                        try {
                            final byte[] valueBytes = record.value();
                            if (valueBytes == null) {
                                throw new ParseException("null value");
                            }
                            final InputRow row = Preconditions.checkNotNull(parser.parse(ByteBuffer.wrap(valueBytes)), "row");
                            if (!ioConfig.getMinimumMessageTime().isPresent() || !ioConfig.getMinimumMessageTime().get().isAfter(row.getTimestamp())) {
                                final SegmentIdentifier identifier = driver.add(row, sequenceNames.get(record.partition()), committerSupplier);
                                if (identifier == null) {
                                    // If we allow continuing, then consider blacklisting the interval for a while to avoid constant checks.
                                    throw new ISE("Could not allocate segment for row with timestamp[%s]", row.getTimestamp());
                                }
                                fireDepartmentMetrics.incrementProcessed();
                            } else {
                                fireDepartmentMetrics.incrementThrownAway();
                            }
                        } catch (ParseException e) {
                            if (tuningConfig.isReportParseExceptions()) {
                                throw e;
                            } else {
                                log.debug(e, "Dropping unparseable row from partition[%d] offset[%,d].", record.partition(), record.offset());
                                fireDepartmentMetrics.incrementUnparseable();
                            }
                        }
                        nextOffsets.put(record.partition(), record.offset() + 1);
                    }
                    if (nextOffsets.get(record.partition()).equals(endOffsets.get(record.partition())) && assignment.remove(record.partition())) {
                        log.info("Finished reading topic[%s], partition[%,d].", record.topic(), record.partition());
                        assignPartitions(consumer, topic, assignment);
                        stillReading = ioConfig.isPauseAfterRead() || !assignment.isEmpty();
                    }
                }
            }
        } finally {
            // persist pending data
            driver.persist(committerSupplier.get());
        }
        synchronized (statusLock) {
            if (stopRequested && !publishOnStop) {
                throw new InterruptedException("Stopping without publishing");
            }
            status = Status.PUBLISHING;
        }
        final TransactionalSegmentPublisher publisher = new TransactionalSegmentPublisher() {

            @Override
            public boolean publishSegments(Set<DataSegment> segments, Object commitMetadata) throws IOException {
                final KafkaPartitions finalPartitions = toolbox.getObjectMapper().convertValue(((Map) commitMetadata).get(METADATA_NEXT_PARTITIONS), KafkaPartitions.class);
                // Sanity check, we should only be publishing things that match our desired end state.
                if (!endOffsets.equals(finalPartitions.getPartitionOffsetMap())) {
                    throw new ISE("WTF?! Driver attempted to publish invalid metadata[%s].", commitMetadata);
                }
                final SegmentTransactionalInsertAction action;
                if (ioConfig.isUseTransaction()) {
                    action = new SegmentTransactionalInsertAction(segments, new KafkaDataSourceMetadata(ioConfig.getStartPartitions()), new KafkaDataSourceMetadata(finalPartitions));
                } else {
                    action = new SegmentTransactionalInsertAction(segments, null, null);
                }
                log.info("Publishing with isTransaction[%s].", ioConfig.isUseTransaction());
                return toolbox.getTaskActionClient().submit(action).isSuccess();
            }
        };
        final SegmentsAndMetadata published = driver.finish(publisher, committerSupplier.get());
        if (published == null) {
            throw new ISE("Transaction failure publishing segments, aborting");
        } else {
            log.info("Published segments[%s] with metadata[%s].", Joiner.on(", ").join(Iterables.transform(published.getSegments(), new Function<DataSegment, String>() {

                @Override
                public String apply(DataSegment input) {
                    return input.getIdentifier();
                }
            })), published.getCommitMetadata());
        }
    } catch (InterruptedException | RejectedExecutionException e) {
        // handle the InterruptedException that gets wrapped in a RejectedExecutionException
        if (e instanceof RejectedExecutionException && (e.getCause() == null || !(e.getCause() instanceof InterruptedException))) {
            throw e;
        }
        // if we were interrupted because we were asked to stop, handle the exception and return success, else rethrow
        if (!stopRequested) {
            Thread.currentThread().interrupt();
            throw e;
        }
        log.info("The task was asked to stop before completing");
    } finally {
        if (chatHandlerProvider.isPresent()) {
            chatHandlerProvider.get().unregister(getId());
        }
    }
    return success();
}

Example 2 with SegmentIdentifier

use of io.druid.segment.realtime.appenderator.SegmentIdentifier in project druid by druid-io.

the class SegmentAllocateActionTest method testResumeSequence.

@Test
public void testResumeSequence() throws Exception {
    final Task task = new NoopTask(null, 0, 0, null, null, null);
    taskActionTestKit.getTaskLockbox().add(task);
    final SegmentIdentifier id1 = allocate(task, PARTY_TIME, Granularities.NONE, Granularities.HOUR, "s1", null);
    final SegmentIdentifier id2 = allocate(task, THE_DISTANT_FUTURE, Granularities.NONE, Granularities.HOUR, "s1", id1.getIdentifierAsString());
    final SegmentIdentifier id3 = allocate(task, PARTY_TIME, Granularities.NONE, Granularities.HOUR, "s1", id2.getIdentifierAsString());
    final SegmentIdentifier id4 = allocate(task, PARTY_TIME, Granularities.NONE, Granularities.HOUR, "s1", id1.getIdentifierAsString());
    final SegmentIdentifier id5 = allocate(task, THE_DISTANT_FUTURE, Granularities.NONE, Granularities.HOUR, "s1", id1.getIdentifierAsString());
    final SegmentIdentifier id6 = allocate(task, THE_DISTANT_FUTURE, Granularities.NONE, Granularities.MINUTE, "s1", id1.getIdentifierAsString());
    final SegmentIdentifier id7 = allocate(task, THE_DISTANT_FUTURE, Granularities.NONE, Granularities.DAY, "s1", id1.getIdentifierAsString());
    final TaskLock partyLock = Iterables.getOnlyElement(FluentIterable.from(taskActionTestKit.getTaskLockbox().findLocksForTask(task)).filter(new Predicate<TaskLock>() {

        @Override
        public boolean apply(TaskLock input) {
            return input.getInterval().contains(PARTY_TIME);
        }
    }));
    final TaskLock futureLock = Iterables.getOnlyElement(FluentIterable.from(taskActionTestKit.getTaskLockbox().findLocksForTask(task)).filter(new Predicate<TaskLock>() {

        @Override
        public boolean apply(TaskLock input) {
            return input.getInterval().contains(THE_DISTANT_FUTURE);
        }
    }));
    assertSameIdentifier(id1, new SegmentIdentifier(DATA_SOURCE, Granularities.HOUR.bucket(PARTY_TIME), partyLock.getVersion(), new NumberedShardSpec(0, 0)));
    assertSameIdentifier(id2, new SegmentIdentifier(DATA_SOURCE, Granularities.HOUR.bucket(THE_DISTANT_FUTURE), futureLock.getVersion(), new NumberedShardSpec(0, 0)));
    assertSameIdentifier(id3, new SegmentIdentifier(DATA_SOURCE, Granularities.HOUR.bucket(PARTY_TIME), partyLock.getVersion(), new NumberedShardSpec(1, 0)));
    Assert.assertNull(id4);
    assertSameIdentifier(id5, id2);
    Assert.assertNull(id6);
    assertSameIdentifier(id7, id2);
}

Example 3 with SegmentIdentifier

use of io.druid.segment.realtime.appenderator.SegmentIdentifier in project druid by druid-io.

the class SegmentAllocateActionTest method testAddToExistingNumberedShardSpecsCoarserPreferredGranularity.

@Test
public void testAddToExistingNumberedShardSpecsCoarserPreferredGranularity() throws Exception {
    final Task task = new NoopTask(null, 0, 0, null, null, null);
    taskActionTestKit.getMetadataStorageCoordinator().announceHistoricalSegments(ImmutableSet.of(DataSegment.builder().dataSource(DATA_SOURCE).interval(Granularities.HOUR.bucket(PARTY_TIME)).version(PARTY_TIME.toString()).shardSpec(new NumberedShardSpec(0, 2)).build(), DataSegment.builder().dataSource(DATA_SOURCE).interval(Granularities.HOUR.bucket(PARTY_TIME)).version(PARTY_TIME.toString()).shardSpec(new NumberedShardSpec(1, 2)).build()));
    taskActionTestKit.getTaskLockbox().add(task);
    final SegmentIdentifier id1 = allocate(task, PARTY_TIME, Granularities.NONE, Granularities.DAY, "s1", null);
    assertSameIdentifier(id1, new SegmentIdentifier(DATA_SOURCE, Granularities.HOUR.bucket(PARTY_TIME), PARTY_TIME.toString(), new NumberedShardSpec(2, 2)));
}

Example 4 with SegmentIdentifier

use of io.druid.segment.realtime.appenderator.SegmentIdentifier in project druid by druid-io.

the class IndexTaskTest method runTask.

private final List<DataSegment> runTask(final IndexTask indexTask) throws Exception {
    final List<DataSegment> segments = Lists.newArrayList();
    indexTask.run(new TaskToolbox(null, null, new TaskActionClient() {

        @Override
        public <RetType> RetType submit(TaskAction<RetType> taskAction) throws IOException {
            if (taskAction instanceof LockListAction) {
                return (RetType) Arrays.asList(new TaskLock("", "", null, new DateTime().toString()));
            }
            if (taskAction instanceof LockAcquireAction) {
                return (RetType) new TaskLock("groupId", "test", ((LockAcquireAction) taskAction).getInterval(), new DateTime().toString());
            }
            if (taskAction instanceof SegmentTransactionalInsertAction) {
                return (RetType) new SegmentPublishResult(((SegmentTransactionalInsertAction) taskAction).getSegments(), true);
            }
            if (taskAction instanceof SegmentAllocateAction) {
                SegmentAllocateAction action = (SegmentAllocateAction) taskAction;
                Interval interval = action.getPreferredSegmentGranularity().bucket(action.getTimestamp());
                ShardSpec shardSpec = new NumberedShardSpec(segmentAllocatePartitionCounter++, 0);
                return (RetType) new SegmentIdentifier(action.getDataSource(), interval, "latestVersion", shardSpec);
            }
            return null;
        }
    }, null, new DataSegmentPusher() {

        @Deprecated
        @Override
        public String getPathForHadoop(String dataSource) {
            return getPathForHadoop();
        }

        @Override
        public String getPathForHadoop() {
            return null;
        }

        @Override
        public DataSegment push(File file, DataSegment segment) throws IOException {
            segments.add(segment);
            return segment;
        }
    }, null, null, null, null, null, null, null, null, null, jsonMapper, temporaryFolder.newFolder(), indexMerger, indexIO, null, null, indexMergerV9));
    Collections.sort(segments);
    return segments;
}

Example 5 with SegmentIdentifier

use of io.druid.segment.realtime.appenderator.SegmentIdentifier in project druid by druid-io.

the class SegmentAllocateActionTest method testCannotAddToExistingNumberedShardSpecsWithCoarserQueryGranularity.

@Test
public void testCannotAddToExistingNumberedShardSpecsWithCoarserQueryGranularity() throws Exception {
    final Task task = new NoopTask(null, 0, 0, null, null, null);
    taskActionTestKit.getMetadataStorageCoordinator().announceHistoricalSegments(ImmutableSet.of(DataSegment.builder().dataSource(DATA_SOURCE).interval(Granularities.HOUR.bucket(PARTY_TIME)).version(PARTY_TIME.toString()).shardSpec(new NumberedShardSpec(0, 2)).build(), DataSegment.builder().dataSource(DATA_SOURCE).interval(Granularities.HOUR.bucket(PARTY_TIME)).version(PARTY_TIME.toString()).shardSpec(new NumberedShardSpec(1, 2)).build()));
    taskActionTestKit.getTaskLockbox().add(task);
    final SegmentIdentifier id1 = allocate(task, PARTY_TIME, Granularities.DAY, Granularities.DAY, "s1", null);
    Assert.assertNull(id1);
}