Examples with ScheduledSplit io.trino.execution.ScheduledSplit used on opensource projects

Example 1 with ScheduledSplit

use of io.trino.execution.ScheduledSplit in project trino by trinodb.

the class HttpRemoteTask method getSplitAssignment.

private synchronized SplitAssignment getSplitAssignment(PlanNodeId planNodeId) {
    Set<ScheduledSplit> splits = pendingSplits.get(planNodeId);
    boolean pendingNoMoreSplits = Boolean.TRUE.equals(this.noMoreSplits.get(planNodeId));
    boolean noMoreSplits = this.noMoreSplits.containsKey(planNodeId);
    Set<Lifespan> noMoreSplitsForLifespan = pendingNoMoreSplitsForLifespan.get(planNodeId);
    SplitAssignment assignment = null;
    if (!splits.isEmpty() || !noMoreSplitsForLifespan.isEmpty() || pendingNoMoreSplits) {
        assignment = new SplitAssignment(planNodeId, splits, noMoreSplitsForLifespan, noMoreSplits);
    }
    return assignment;
}

Example 2 with ScheduledSplit

use of io.trino.execution.ScheduledSplit in project trino by trinodb.

the class Driver method processNewSources.

@GuardedBy("exclusiveLock")
private void processNewSources() {
    checkLockHeld("Lock must be held to call processNewSources");
    // only update if the driver is still alive
    if (state.get() != State.ALIVE) {
        return;
    }
    SplitAssignment splitAssignment = pendingSplitAssignmentUpdates.getAndSet(null);
    if (splitAssignment == null) {
        return;
    }
    // merge the current assignment and the specified assignment
    SplitAssignment newAssignment = currentSplitAssignment.update(splitAssignment);
    // if the update contains no new data, just return
    if (newAssignment == currentSplitAssignment) {
        return;
    }
    // determine new splits to add
    Set<ScheduledSplit> newSplits = Sets.difference(newAssignment.getSplits(), currentSplitAssignment.getSplits());
    // add new splits
    SourceOperator sourceOperator = this.sourceOperator.orElseThrow(VerifyException::new);
    for (ScheduledSplit newSplit : newSplits) {
        Split split = newSplit.getSplit();
        Supplier<Optional<UpdatablePageSource>> pageSource = sourceOperator.addSplit(split);
        deleteOperator.ifPresent(deleteOperator -> deleteOperator.setPageSource(pageSource));
        updateOperator.ifPresent(updateOperator -> updateOperator.setPageSource(pageSource));
    }
    // set no more splits
    if (newAssignment.isNoMoreSplits()) {
        sourceOperator.noMoreSplits();
    }
    currentSplitAssignment = newAssignment;
}

Example 3 with ScheduledSplit

use of io.trino.execution.ScheduledSplit in project trino by trinodb.

the class TestMemoryBlocking method testTableScanMemoryBlocking.

@Test
public void testTableScanMemoryBlocking() {
    PlanNodeId sourceId = new PlanNodeId("source");
    List<Type> types = ImmutableList.of(VARCHAR);
    TableScanOperator source = new TableScanOperator(driverContext.addOperatorContext(1, new PlanNodeId("test"), "values"), sourceId, (session, split, table, columns, dynamicFilter) -> new FixedPageSource(rowPagesBuilder(types).addSequencePage(10, 1).addSequencePage(10, 1).addSequencePage(10, 1).addSequencePage(10, 1).addSequencePage(10, 1).build()), TEST_TABLE_HANDLE, ImmutableList.of(), DynamicFilter.EMPTY);
    PageConsumerOperator sink = createSinkOperator(types);
    Driver driver = Driver.createDriver(driverContext, source, sink);
    assertSame(driver.getDriverContext(), driverContext);
    assertFalse(driver.isFinished());
    Split testSplit = new Split(new CatalogName("test"), new TestSplit(), Lifespan.taskWide());
    driver.updateSplitAssignment(new SplitAssignment(sourceId, ImmutableSet.of(new ScheduledSplit(0, sourceId, testSplit)), true));
    ListenableFuture<Void> blocked = driver.processFor(new Duration(1, NANOSECONDS));
    // the driver shouldn't block in the first call as it will be able to move a page between source and the sink operator
    // but the operator should be blocked
    assertTrue(blocked.isDone());
    assertFalse(source.getOperatorContext().isWaitingForMemory().isDone());
    // and they should stay blocked until more memory becomes available
    for (int i = 0; i < 10; i++) {
        blocked = driver.processFor(new Duration(1, NANOSECONDS));
        assertFalse(blocked.isDone());
        assertFalse(source.getOperatorContext().isWaitingForMemory().isDone());
    }
    // free up some memory
    memoryPool.free(QUERY_ID, "test", memoryPool.getReservedBytes());
    // the operator should be unblocked
    assertTrue(source.getOperatorContext().isWaitingForMemory().isDone());
    // the driver shouldn't be blocked
    blocked = driver.processFor(new Duration(1, NANOSECONDS));
    assertTrue(blocked.isDone());
}

Example 4 with ScheduledSplit

use of io.trino.execution.ScheduledSplit in project trino by trinodb.

the class HttpRemoteTask method processTaskUpdate.

private synchronized void processTaskUpdate(TaskInfo newValue, List<SplitAssignment> splitAssignments) {
    updateTaskInfo(newValue);
    // remove acknowledged splits, which frees memory
    for (SplitAssignment assignment : splitAssignments) {
        PlanNodeId planNodeId = assignment.getPlanNodeId();
        boolean isPartitionedSource = planFragment.isPartitionedSources(planNodeId);
        int removed = 0;
        long removedWeight = 0;
        for (ScheduledSplit split : assignment.getSplits()) {
            if (pendingSplits.remove(planNodeId, split)) {
                if (isPartitionedSource) {
                    removed++;
                    removedWeight = addExact(removedWeight, split.getSplit().getSplitWeight().getRawValue());
                }
            }
        }
        if (assignment.isNoMoreSplits()) {
            noMoreSplits.put(planNodeId, false);
        }
        for (Lifespan lifespan : assignment.getNoMoreSplitsForLifespan()) {
            pendingNoMoreSplitsForLifespan.remove(planNodeId, lifespan);
        }
        if (isPartitionedSource) {
            pendingSourceSplitCount -= removed;
            pendingSourceSplitsWeight -= removedWeight;
        }
    }
    // Update node level split tracker before split queue space to ensure it's up to date before waking up the scheduler
    partitionedSplitCountTracker.setPartitionedSplits(getPartitionedSplitsInfo());
    updateSplitQueueSpace();
}

Example 5 with ScheduledSplit

use of io.trino.execution.ScheduledSplit in project trino by trinodb.

the class HttpRemoteTask method addSplits.

@Override
public synchronized void addSplits(Multimap<PlanNodeId, Split> splitsBySource) {
    requireNonNull(splitsBySource, "splitsBySource is null");
    // only add pending split if not done
    if (getTaskStatus().getState().isDone()) {
        return;
    }
    boolean needsUpdate = false;
    for (Entry<PlanNodeId, Collection<Split>> entry : splitsBySource.asMap().entrySet()) {
        PlanNodeId sourceId = entry.getKey();
        Collection<Split> splits = entry.getValue();
        boolean isPartitionedSource = planFragment.isPartitionedSources(sourceId);
        checkState(!noMoreSplits.containsKey(sourceId), "noMoreSplits has already been set for %s", sourceId);
        int added = 0;
        long addedWeight = 0;
        for (Split split : splits) {
            if (pendingSplits.put(sourceId, new ScheduledSplit(nextSplitId.getAndIncrement(), sourceId, split))) {
                if (isPartitionedSource) {
                    added++;
                    addedWeight = addExact(addedWeight, split.getSplitWeight().getRawValue());
                }
            }
        }
        if (isPartitionedSource) {
            pendingSourceSplitCount += added;
            pendingSourceSplitsWeight = addExact(pendingSourceSplitsWeight, addedWeight);
            partitionedSplitCountTracker.setPartitionedSplits(getPartitionedSplitsInfo());
        }
        needsUpdate = true;
    }
    updateSplitQueueSpace();
    if (needsUpdate) {
        triggerUpdate();
    }
}