GJL commented on a change in pull request #8309: [FLINK-12229] [runtime] Implement LazyFromSourcesScheduling Strategy URL: https://github.com/apache/flink/pull/8309#discussion_r284808474
########## File path: flink-runtime/src/test/java/org/apache/flink/runtime/scheduler/strategy/LazyFromSourcesSchedulingStrategyTest.java ########## @@ -0,0 +1,230 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package org.apache.flink.runtime.scheduler.strategy; + +import org.apache.flink.runtime.execution.ExecutionState; +import org.apache.flink.runtime.executiongraph.ExecutionAttemptID; +import org.apache.flink.runtime.io.network.partition.ResultPartitionID; +import org.apache.flink.util.TestLogger; + +import org.hamcrest.Description; +import org.hamcrest.Matcher; +import org.hamcrest.TypeSafeDiagnosingMatcher; +import org.junit.Test; + +import java.util.List; +import java.util.Set; +import java.util.stream.Collectors; + +import static org.apache.flink.api.common.InputDependencyConstraint.ALL; +import static org.apache.flink.runtime.io.network.partition.ResultPartitionType.PIPELINED; +import static org.apache.flink.runtime.scheduler.strategy.StrategyTestUtil.getExecutionVertexIdsFromDeployOptions; +import static org.hamcrest.Matchers.containsInAnyOrder; +import static org.junit.Assert.assertThat; + +/** + * Unit tests for {@link LazyFromSourcesSchedulingStrategy}. + */ +public class LazyFromSourcesSchedulingStrategyTest extends TestLogger { + + private TestingSchedulerOperations testingSchedulerOperation = new TestingSchedulerOperations(); + + /** + * Tests that when start scheduling lazy from sources scheduling strategy will start input vertices in scheduling topology. + */ + @Test + public void testStartScheduling() { + final TestingSchedulingTopology testingSchedulingTopology = new TestingSchedulingTopology(); + + final List<TestingSchedulingExecutionVertex> producers = testingSchedulingTopology.addExecutionVertices().finish(); + final List<TestingSchedulingExecutionVertex> consumers = testingSchedulingTopology.addExecutionVertices().finish(); + testingSchedulingTopology.connectAllToAll(producers, consumers).finish(); + + startScheduling(testingSchedulingTopology); + + assertThat(testingSchedulerOperation, hasScheduledVertices(producers)); + } + + /** + * Tests that when restart tasks will only schedule input ready vertices in given ones. + */ + @Test + public void testRestartTasks() { + final TestingSchedulingTopology testingSchedulingTopology = new TestingSchedulingTopology(); + + final List<TestingSchedulingExecutionVertex> producers = testingSchedulingTopology.addExecutionVertices().finish(); + final List<TestingSchedulingExecutionVertex> consumers = testingSchedulingTopology.addExecutionVertices().finish(); + testingSchedulingTopology.connectAllToAll(producers, consumers).finish(); + + LazyFromSourcesSchedulingStrategy schedulingStrategy = startScheduling(testingSchedulingTopology); + + assertThat(testingSchedulerOperation, hasScheduledVertices(producers)); + + Set<ExecutionVertexID> verticesToRestart = producers.stream().map(TestingSchedulingExecutionVertex::getId) + .collect(Collectors.toSet()); + verticesToRestart.addAll(consumers.stream().map( + TestingSchedulingExecutionVertex::getId).collect(Collectors.toSet())); + + schedulingStrategy.restartTasks(verticesToRestart); + assertThat(testingSchedulerOperation, hasScheduledVertices(producers)); + } + + /** + * Tests that when partition consumable notified will start available {@link PIPELINED} downstream vertices. + */ + @Test + public void testPipelinedPartitionConsumable() { + final TestingSchedulingTopology testingSchedulingTopology = new TestingSchedulingTopology(); + + final List<TestingSchedulingExecutionVertex> producers = testingSchedulingTopology.addExecutionVertices() + .withParallelism(2).finish(); + final List<TestingSchedulingExecutionVertex> consumers = testingSchedulingTopology.addExecutionVertices() + .withParallelism(2).finish(); + testingSchedulingTopology.connectAllToAll(producers, consumers).withResultPartitionType(PIPELINED).finish(); + + final LazyFromSourcesSchedulingStrategy schedulingStrategy = startScheduling(testingSchedulingTopology); + + final TestingSchedulingExecutionVertex producer1 = producers.get(0); + final SchedulingResultPartition partition1 = producer1.getProducedResultPartitions().iterator().next(); + + schedulingStrategy.onExecutionStateChange(producer1.getId(), ExecutionState.RUNNING); + schedulingStrategy.onPartitionConsumable(producer1.getId(), new ResultPartitionID(partition1.getId(), new ExecutionAttemptID())); + + assertThat(testingSchedulerOperation, hasScheduledVertices(consumers)); + } + + /** + * Tests that when partition consumable notified will start available {@link BLOCKING} downstream vertices. + */ + @Test + public void testBlockingPointwiseExecutionStateChange() { + final TestingSchedulingTopology testingSchedulingTopology = new TestingSchedulingTopology(); + + final List<TestingSchedulingExecutionVertex> producers = testingSchedulingTopology.addExecutionVertices() + .withParallelism(2).finish(); + final List<TestingSchedulingExecutionVertex> consumers = testingSchedulingTopology.addExecutionVertices() + .withParallelism(2).finish(); + testingSchedulingTopology.connectPointwise(producers, consumers).finish(); + + final LazyFromSourcesSchedulingStrategy schedulingStrategy = startScheduling(testingSchedulingTopology); + + for (TestingSchedulingExecutionVertex producer : producers) { + schedulingStrategy.onExecutionStateChange(producer.getId(), ExecutionState.FINISHED); + } + + assertThat(testingSchedulerOperation, hasScheduledVertices(consumers)); + } + + /** + * Tests that when all the input partitions are ready will start available downstream {@link BLOCKING} vertices. + * vertex#0 vertex#1 + * \ / + * \ / + * \ / + * (BLOCKING, ALL) + * vertex#2 + */ + @Test + public void testBlockingALLExecutionStateChange() { + final TestingSchedulingTopology testingSchedulingTopology = new TestingSchedulingTopology(); + + final List<TestingSchedulingExecutionVertex> producers1 = testingSchedulingTopology.addExecutionVertices() + .withParallelism(2).finish(); + final List<TestingSchedulingExecutionVertex> producers2 = testingSchedulingTopology.addExecutionVertices() + .withParallelism(2).finish(); + final List<TestingSchedulingExecutionVertex> consumers = testingSchedulingTopology.addExecutionVertices() + .withParallelism(2).withInputDependencyConstraint(ALL).finish(); + testingSchedulingTopology.connectPointwise(producers1, consumers).finish(); + testingSchedulingTopology.connectPointwise(producers2, consumers).finish(); + + final LazyFromSourcesSchedulingStrategy schedulingStrategy = startScheduling(testingSchedulingTopology); + + for (TestingSchedulingExecutionVertex producer : producers1) { + schedulingStrategy.onExecutionStateChange(producer.getId(), ExecutionState.FINISHED); + } + for (TestingSchedulingExecutionVertex producer : producers2) { + schedulingStrategy.onExecutionStateChange(producer.getId(), ExecutionState.FINISHED); + } + + assertThat(testingSchedulerOperation, hasScheduledVertices(consumers)); + } + + /** + * Tests that when any input dataset finishes will start available downstream {@link BLOCKING} vertices. + * vertex#0 vertex#1 + * \ / + * \ / + * \ / + * (BLOCKING, ANY) + * vertex#2 + */ + @Test + public void testBlockingANYExecutionStateChange() { + final TestingSchedulingTopology testingSchedulingTopology = new TestingSchedulingTopology(); + + final List<TestingSchedulingExecutionVertex> producers1 = testingSchedulingTopology.addExecutionVertices() + .withParallelism(2).finish(); + final List<TestingSchedulingExecutionVertex> producers2 = testingSchedulingTopology.addExecutionVertices() + .withParallelism(2).finish(); + final List<TestingSchedulingExecutionVertex> consumers = testingSchedulingTopology.addExecutionVertices() + .withParallelism(2).finish(); + testingSchedulingTopology.connectPointwise(producers1, consumers).finish(); + testingSchedulingTopology.connectPointwise(producers2, consumers).finish(); + + final LazyFromSourcesSchedulingStrategy schedulingStrategy = startScheduling(testingSchedulingTopology); + + for (TestingSchedulingExecutionVertex producer : producers1) { + schedulingStrategy.onExecutionStateChange(producer.getId(), ExecutionState.FINISHED); + } + + assertThat(testingSchedulerOperation, hasScheduledVertices(consumers)); + } + + private static Matcher<TestingSchedulerOperations> hasScheduledVertices(final List<TestingSchedulingExecutionVertex> consumers) { + + final Matcher<Iterable<? extends ExecutionVertexID>> vertexIdMatcher = containsInAnyOrder(consumers.stream() + .map(SchedulingExecutionVertex::getId) + .toArray(ExecutionVertexID[]::new)); + + return new TypeSafeDiagnosingMatcher<TestingSchedulerOperations>() { + + @Override + protected boolean matchesSafely(final TestingSchedulerOperations item, final Description mismatchDescription) { + final boolean matches = vertexIdMatcher.matches(getExecutionVertexIdsFromDeployOptions(item.getLatestScheduledVertices())); + if (!matches) { + vertexIdMatcher.describeMismatch(item.getLatestScheduledVertices(), mismatchDescription); Review comment: ``` vertexIdMatcher.describeMismatch(getExecutionVertexIdsFromDeployOptions(item.getLatestScheduledVertices()), mismatchDescription); ``` error message is incorrect otherwise ---------------------------------------------------------------- This is an automated message from the Apache Git Service. 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