Examples with MockExecutorState org.apache.drill.test.OperatorFixture.MockExecutorState used on opensource projects

Example 1 with MockExecutorState

use of org.apache.drill.test.OperatorFixture.MockExecutorState in project drill by apache.

the class TestPartitionSender method testThreadsHelper.

/**
 * Core of the testing
 * @param hashToRandomExchange
 * @param drillbitContext
 * @param options
 * @param incoming
 * @param registry
 * @param planReader
 * @param planningSet
 * @param rootFragment
 * @param expectedThreadsCount
 * @throws Exception
 */
private void testThreadsHelper(HashToRandomExchange hashToRandomExchange, DrillbitContext drillbitContext, OptionList options, RecordBatch incoming, FunctionImplementationRegistry registry, PhysicalPlanReader planReader, PlanningSet planningSet, Fragment rootFragment, int expectedThreadsCount) throws Exception {
    final QueryContextInformation queryContextInfo = Utilities.createQueryContextInfo("dummySchemaName", "938ea2d9-7cb9-4baf-9414-a5a0b7777e8e");
    final QueryWorkUnit qwu = PARALLELIZER.generateWorkUnit(options, drillbitContext.getEndpoint(), QueryId.getDefaultInstance(), drillbitContext.getBits(), rootFragment, USER_SESSION, queryContextInfo);
    qwu.applyPlan(planReader);
    final List<MinorFragmentEndpoint> mfEndPoints = PhysicalOperatorUtil.getIndexOrderedEndpoints(Lists.newArrayList(drillbitContext.getBits()));
    for (PlanFragment planFragment : qwu.getFragments()) {
        if (!planFragment.getFragmentJson().contains("hash-partition-sender")) {
            continue;
        }
        MockPartitionSenderRootExec partionSenderRootExec = null;
        FragmentContextImpl context = null;
        try {
            context = new FragmentContextImpl(drillbitContext, planFragment, null, registry);
            context.setExecutorState(new MockExecutorState());
            final int majorFragmentId = planFragment.getHandle().getMajorFragmentId();
            final HashPartitionSender partSender = new HashPartitionSender(majorFragmentId, hashToRandomExchange, hashToRandomExchange.getExpression(), mfEndPoints);
            partionSenderRootExec = new MockPartitionSenderRootExec(context, incoming, partSender);
            assertEquals("Number of threads calculated", expectedThreadsCount, partionSenderRootExec.getNumberPartitions());
            partionSenderRootExec.createPartitioner();
            final PartitionerDecorator partDecor = partionSenderRootExec.getPartitioner();
            assertNotNull(partDecor);
            List<Partitioner> partitioners = partDecor.getPartitioners();
            assertNotNull(partitioners);
            final int actualThreads = DRILLBITS_COUNT > expectedThreadsCount ? expectedThreadsCount : DRILLBITS_COUNT;
            assertEquals("Number of partitioners", actualThreads, partitioners.size());
            for (int i = 0; i < mfEndPoints.size(); i++) {
                assertNotNull("PartitionOutgoingBatch", partDecor.getOutgoingBatches(i));
            }
            // check distribution of PartitionOutgoingBatch - should be even distribution
            boolean isFirst = true;
            int prevBatchCountSize = 0;
            int batchCountSize = 0;
            for (Partitioner part : partitioners) {
                @SuppressWarnings("unchecked") final List<PartitionOutgoingBatch> outBatch = (List<PartitionOutgoingBatch>) part.getOutgoingBatches();
                batchCountSize = outBatch.size();
                if (!isFirst) {
                    assertTrue(Math.abs(batchCountSize - prevBatchCountSize) <= 1);
                } else {
                    isFirst = false;
                }
                prevBatchCountSize = batchCountSize;
            }
            partionSenderRootExec.getStats().startProcessing();
            try {
                partDecor.partitionBatch(incoming);
            } finally {
                partionSenderRootExec.getStats().stopProcessing();
            }
            if (actualThreads == 1) {
                assertEquals("With single thread parent and child waitNanos should match", partitioners.get(0).getStats().getWaitNanos(), partionSenderRootExec.getStats().getWaitNanos());
            }
            // testing values distribution
            partitioners = partDecor.getPartitioners();
            isFirst = true;
            // since we have fake Nullvector distribution is skewed
            for (Partitioner part : partitioners) {
                @SuppressWarnings("unchecked") final List<PartitionOutgoingBatch> outBatches = (List<PartitionOutgoingBatch>) part.getOutgoingBatches();
                for (PartitionOutgoingBatch partOutBatch : outBatches) {
                    final int recordCount = ((VectorAccessible) partOutBatch).getRecordCount();
                    if (isFirst) {
                        assertEquals("RecordCount", 100, recordCount);
                        isFirst = false;
                    } else {
                        assertEquals("RecordCount", 0, recordCount);
                    }
                }
            }
            // test exceptions within threads
            // test stats merging
            partionSenderRootExec.getStats().startProcessing();
            try {
                partDecor.executeMethodLogic(new InjectExceptionTest());
                fail("executeMethodLogic should throw an exception.");
            } catch (ExecutionException e) {
                final OperatorProfile.Builder oPBuilder = OperatorProfile.newBuilder();
                partionSenderRootExec.getStats().addAllMetrics(oPBuilder);
                final List<MetricValue> metrics = oPBuilder.getMetricList();
                for (MetricValue metric : metrics) {
                    if (Metric.BYTES_SENT.metricId() == metric.getMetricId()) {
                        assertEquals("Should add metricValue irrespective of exception", 5 * actualThreads, metric.getLongValue());
                    }
                    if (Metric.SENDING_THREADS_COUNT.metricId() == metric.getMetricId()) {
                        assertEquals(actualThreads, metric.getLongValue());
                    }
                }
                assertTrue(e.getCause() instanceof IOException);
                assertEquals(actualThreads - 1, e.getCause().getSuppressed().length);
            } finally {
                partionSenderRootExec.getStats().stopProcessing();
            }
        } finally {
            // cleanup
            partionSenderRootExec.close();
            context.close();
        }
    }
}