Examples with HashToRandomExchange org.apache.drill.exec.physical.config.HashToRandomExchange used on opensource projects

Example 1 with HashToRandomExchange

use of org.apache.drill.exec.physical.config.HashToRandomExchange in project drill by axbaretto.

the class HashToRandomExchangePrel method getPhysicalOperator.

public PhysicalOperator getPhysicalOperator(PhysicalPlanCreator creator) throws IOException {
    Prel child = (Prel) this.getInput();
    PhysicalOperator childPOP = child.getPhysicalOperator(creator);
    if (PrelUtil.getSettings(getCluster()).isSingleMode()) {
        return childPOP;
    }
    // TODO - refactor to different exchange name
    HashToRandomExchange g = new HashToRandomExchange(childPOP, HashPrelUtil.getHashExpression(this.fields, getInput().getRowType()));
    return creator.addMetadata(this, g);
}

Example 2 with HashToRandomExchange

use of org.apache.drill.exec.physical.config.HashToRandomExchange in project drill by apache.

the class TestPartitionSender method testPartitionSenderCostToThreads.

@Test
public /**
 * Main test to go over different scenarios
 * @throws Exception
 */
void testPartitionSenderCostToThreads() throws Exception {
    final VectorContainer container = new VectorContainer();
    container.buildSchema(SelectionVectorMode.FOUR_BYTE);
    final SelectionVector4 sv = Mockito.mock(SelectionVector4.class, "SelectionVector4");
    Mockito.when(sv.getCount()).thenReturn(100);
    Mockito.when(sv.getTotalCount()).thenReturn(100);
    for (int i = 0; i < 100; i++) {
        Mockito.when(sv.get(i)).thenReturn(i);
    }
    final TopNBatch.SimpleSV4RecordBatch incoming = new TopNBatch.SimpleSV4RecordBatch(container, sv, null);
    updateTestCluster(DRILLBITS_COUNT, null);
    test("ALTER SESSION SET `planner.slice_target`=1");
    String plan = getPlanInString("EXPLAIN PLAN FOR " + groupByQuery, JSON_FORMAT);
    final DrillbitContext drillbitContext = getDrillbitContext();
    final PhysicalPlanReader planReader = drillbitContext.getPlanReader();
    final PhysicalPlan physicalPlan = planReader.readPhysicalPlan(plan);
    final Fragment rootFragment = PopUnitTestBase.getRootFragmentFromPlanString(planReader, plan);
    final PlanningSet planningSet = new PlanningSet();
    final FunctionImplementationRegistry registry = new FunctionImplementationRegistry(config);
    // Create a planningSet to get the assignment of major fragment ids to fragments.
    PARALLELIZER.initFragmentWrappers(rootFragment, planningSet);
    final List<PhysicalOperator> operators = physicalPlan.getSortedOperators(false);
    // get HashToRandomExchange physical operator
    HashToRandomExchange hashToRandomExchange = null;
    for (PhysicalOperator operator : operators) {
        if (operator instanceof HashToRandomExchange) {
            hashToRandomExchange = (HashToRandomExchange) operator;
            break;
        }
    }
    final OptionList options = new OptionList();
    // try multiple scenarios with different set of options
    options.add(OptionValue.create(OptionValue.AccessibleScopes.SESSION, "planner.slice_target", 1, OptionScope.SESSION));
    testThreadsHelper(hashToRandomExchange, drillbitContext, options, incoming, registry, planReader, planningSet, rootFragment, 1);
    options.clear();
    options.add(OptionValue.create(AccessibleScopes.SESSION, "planner.slice_target", 1, OptionScope.SESSION));
    options.add(OptionValue.create(OptionValue.AccessibleScopes.SESSION, "planner.partitioner_sender_max_threads", 10, OptionScope.SESSION));
    hashToRandomExchange.setCost(new PrelCostEstimates(1000, 1000));
    testThreadsHelper(hashToRandomExchange, drillbitContext, options, incoming, registry, planReader, planningSet, rootFragment, 10);
    options.clear();
    options.add(OptionValue.create(AccessibleScopes.SESSION, "planner.slice_target", 1000, OptionScope.SESSION));
    options.add(OptionValue.create(AccessibleScopes.SESSION, "planner.partitioner_sender_threads_factor", 2, OptionScope.SESSION));
    hashToRandomExchange.setCost(new PrelCostEstimates(14000, 14000));
    testThreadsHelper(hashToRandomExchange, drillbitContext, options, incoming, registry, planReader, planningSet, rootFragment, 2);
}

Example 3 with HashToRandomExchange

use of org.apache.drill.exec.physical.config.HashToRandomExchange in project drill by apache.

the class HashToRandomExchangePrel method getPhysicalOperator.

public PhysicalOperator getPhysicalOperator(PhysicalPlanCreator creator) throws IOException {
    Prel child = (Prel) this.getInput();
    PhysicalOperator childPOP = child.getPhysicalOperator(creator);
    if (PrelUtil.getSettings(getCluster()).isSingleMode()) {
        return childPOP;
    }
    // TODO - refactor to different exchange name
    HashToRandomExchange g = new HashToRandomExchange(childPOP, HashPrelUtil.getHashExpression(this.fields, getInput().getRowType()));
    return creator.addMetadata(this, g);
}

Example 4 with HashToRandomExchange

use of org.apache.drill.exec.physical.config.HashToRandomExchange in project drill by axbaretto.

the class TestPartitionSender method testPartitionSenderCostToThreads.

@Test
public /**
 * Main test to go over different scenarios
 * @throws Exception
 */
void testPartitionSenderCostToThreads() throws Exception {
    final VectorContainer container = new VectorContainer();
    container.buildSchema(SelectionVectorMode.FOUR_BYTE);
    final SelectionVector4 sv = Mockito.mock(SelectionVector4.class, "SelectionVector4");
    Mockito.when(sv.getCount()).thenReturn(100);
    Mockito.when(sv.getTotalCount()).thenReturn(100);
    for (int i = 0; i < 100; i++) {
        Mockito.when(sv.get(i)).thenReturn(i);
    }
    final TopNBatch.SimpleSV4RecordBatch incoming = new TopNBatch.SimpleSV4RecordBatch(container, sv, null);
    updateTestCluster(DRILLBITS_COUNT, null);
    test("ALTER SESSION SET `planner.slice_target`=1");
    String plan = getPlanInString("EXPLAIN PLAN FOR " + groupByQuery, JSON_FORMAT);
    System.out.println("Plan: " + plan);
    final DrillbitContext drillbitContext = getDrillbitContext();
    final PhysicalPlanReader planReader = drillbitContext.getPlanReader();
    final PhysicalPlan physicalPlan = planReader.readPhysicalPlan(plan);
    final Fragment rootFragment = PopUnitTestBase.getRootFragmentFromPlanString(planReader, plan);
    final PlanningSet planningSet = new PlanningSet();
    final FunctionImplementationRegistry registry = new FunctionImplementationRegistry(config);
    // Create a planningSet to get the assignment of major fragment ids to fragments.
    PARALLELIZER.initFragmentWrappers(rootFragment, planningSet);
    final List<PhysicalOperator> operators = physicalPlan.getSortedOperators(false);
    // get HashToRandomExchange physical operator
    HashToRandomExchange hashToRandomExchange = null;
    for (PhysicalOperator operator : operators) {
        if (operator instanceof HashToRandomExchange) {
            hashToRandomExchange = (HashToRandomExchange) operator;
            break;
        }
    }
    final OptionList options = new OptionList();
    // try multiple scenarios with different set of options
    options.add(OptionValue.create(OptionValue.AccessibleScopes.SESSION, "planner.slice_target", 1, OptionScope.SESSION));
    testThreadsHelper(hashToRandomExchange, drillbitContext, options, incoming, registry, planReader, planningSet, rootFragment, 1);
    options.clear();
    options.add(OptionValue.create(AccessibleScopes.SESSION, "planner.slice_target", 1, OptionScope.SESSION));
    options.add(OptionValue.create(OptionValue.AccessibleScopes.SESSION, "planner.partitioner_sender_max_threads", 10, OptionScope.SESSION));
    hashToRandomExchange.setCost(1000);
    testThreadsHelper(hashToRandomExchange, drillbitContext, options, incoming, registry, planReader, planningSet, rootFragment, 10);
    options.clear();
    options.add(OptionValue.create(AccessibleScopes.SESSION, "planner.slice_target", 1000, OptionScope.SESSION));
    options.add(OptionValue.create(AccessibleScopes.SESSION, "planner.partitioner_sender_threads_factor", 2, OptionScope.SESSION));
    hashToRandomExchange.setCost(14000);
    testThreadsHelper(hashToRandomExchange, drillbitContext, options, incoming, registry, planReader, planningSet, rootFragment, 2);
}