Package com.facebook.presto

Examples of com.facebook.presto.TaskSource

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        try (SqlTaskManager sqlTaskManager = createSqlTaskManager(new TaskManagerConfig())) {
            TaskId taskId = TASK_ID;
            TaskInfo taskInfo = sqlTaskManager.updateTask(TEST_SESSION,
                    taskId,
                    PLAN_FRAGMENT,
                    ImmutableList.of(new TaskSource(TABLE_SCAN_NODE_ID, ImmutableSet.of(SPLIT), true)),
                    INITIAL_EMPTY_OUTPUT_BUFFERS.withBuffer(OUT, new UnpartitionedPagePartitionFunction()).withNoMoreBufferIds());
            assertEquals(taskInfo.getState(), TaskState.RUNNING);

            taskInfo = sqlTaskManager.getTaskInfo(taskId);
            assertEquals(taskInfo.getState(), TaskState.RUNNING);
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        try (SqlTaskManager sqlTaskManager = createSqlTaskManager(new TaskManagerConfig())) {
            TaskId taskId = TASK_ID;
            TaskInfo taskInfo = sqlTaskManager.updateTask(TEST_SESSION,
                    taskId,
                    PLAN_FRAGMENT,
                    ImmutableList.of(new TaskSource(TABLE_SCAN_NODE_ID, ImmutableSet.of(SPLIT), true)),
                    INITIAL_EMPTY_OUTPUT_BUFFERS.withBuffer(OUT, new UnpartitionedPagePartitionFunction()).withNoMoreBufferIds());
            assertEquals(taskInfo.getState(), TaskState.RUNNING);

            taskInfo = sqlTaskManager.getTaskInfo(taskId);
            assertEquals(taskInfo.getState(), TaskState.RUNNING);
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        assertFalse(driver.isFinished());
        assertFalse(driver.processFor(new Duration(1, TimeUnit.MILLISECONDS)).isDone());
        assertFalse(driver.isFinished());

        driver.updateSource(new TaskSource(sourceId, ImmutableSet.of(new ScheduledSplit(0, newMockSplit())), true));

        assertFalse(driver.isFinished());
        assertTrue(driver.processFor(new Duration(1, TimeUnit.SECONDS)).isDone());
        assertTrue(driver.isFinished());
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        assertFalse(driver.isFinished());
        // processFor always returns NOT_BLOCKED, because DriveLockResult was not acquired
        assertTrue(driver.processFor(new Duration(1, TimeUnit.MILLISECONDS)).isDone());
        assertFalse(driver.isFinished());

        driver.updateSource(new TaskSource(sourceId, ImmutableSet.of(new ScheduledSplit(0, newMockSplit())), true));

        assertFalse(driver.isFinished());
        // processFor always returns NOT_BLOCKED, because DriveLockResult was not acquired
        assertTrue(driver.processFor(new Duration(1, TimeUnit.SECONDS)).isDone());
        assertFalse(driver.isFinished());
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                for (ScheduledSplit scheduledSplit : source.getSplits()) {
                    newMaxAcknowledgedSplit = max(scheduledSplit.getSequenceId(), newMaxAcknowledgedSplit);
                }

                // create new source
                TaskSource newSource;
                TaskSource currentSource = unpartitionedSources.get(sourceId);
                if (currentSource == null) {
                    newSource = source;
                }
                else {
                    newSource = currentSource.update(source);
                }

                // only record new source if something changed
                if (newSource != currentSource) {
                    unpartitionedSources.put(sourceId, newSource);
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            // NOTE: this MUST be done before reading unpartitionedSources, so we see a consistent view of the unpartitioned sources
            drivers.add(new WeakReference<>(driver));

            if (partitionedSplit != null) {
                // TableScanOperator requires partitioned split to be added before the first call to process
                driver.updateSource(new TaskSource(partitionedSourceId, ImmutableSet.of(partitionedSplit), true));
            }

            // add unpartitioned sources
            for (TaskSource source : unpartitionedSources.values()) {
                driver.updateSource(source);
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                for (ScheduledSplit scheduledSplit : source.getSplits()) {
                    newMaxAcknowledgedSplit = max(scheduledSplit.getSequenceId(), newMaxAcknowledgedSplit);
                }

                // create new source
                TaskSource newSource;
                TaskSource currentSource = unpartitionedSources.get(sourceId);
                if (currentSource == null) {
                    newSource = source;
                }
                else {
                    newSource = currentSource.update(source);
                }

                // only record new source if something changed
                if (newSource != currentSource) {
                    unpartitionedSources.put(sourceId, newSource);
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        Driver driver = driverFactory.createDriver(driverContext);

        if (partitionedSplit != null) {
            // TableScanOperator requires partitioned split to be added before task is started
            driver.updateSource(new TaskSource(partitionedSourceId, ImmutableSet.of(partitionedSplit), true));
        }

        // record driver so other threads add unpartitioned sources can see the driver
        // NOTE: this MUST be done before reading unpartitionedSources, so we see a consistent view of the unpartitioned sources
        drivers.add(new WeakReference<>(driver));
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                    Thread.currentThread().interrupt();
                    throw Throwables.propagate(e);
                }
            }

            sources.add(new TaskSource(tableScan.getId(), scheduledSplits.build(), true));
        }

        // create drivers
        List<Driver> drivers = new ArrayList<>();
        Map<PlanNodeId, Driver> driversBySource = new HashMap<>();
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        ImmutableList.Builder<TaskSource> sources = ImmutableList.builder();
        for (PlanNodeId planNodeId : planFragment.getSourceIds()) {
            Set<ScheduledSplit> splits = pendingSplits.get(planNodeId);
            boolean noMoreSplits = this.noMoreSplits.contains(planNodeId);
            if (!splits.isEmpty() || noMoreSplits) {
                sources.add(new TaskSource(planNodeId, splits, noMoreSplits));
            }
        }
        return sources.build();
    }
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Related Classes of com.facebook.presto.TaskSource

  • com.facebook.presto.execution.SqlTaskExecution
  • com.facebook.presto.execution.SqlTaskExecution$DriverSplitRunnerFactory
  • com.facebook.presto.execution.TestSqlTask
  • com.facebook.presto.execution.TestSqlTaskExecution
  • com.facebook.presto.execution.TestSqlTaskManager
  • com.facebook.presto.operator.Driver
  • com.facebook.presto.operator.index.IndexLoader
  • com.facebook.presto.operator.index.IndexLoader$IndexSnapshotBuilder
  • com.facebook.presto.operator.index.IndexLoader$IndexSnapshotLoader
  • com.facebook.presto.operator.TestDriver
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