RocMarshal commented on code in PR #25517: URL: https://github.com/apache/flink/pull/25517#discussion_r2304264727
########## flink-runtime/src/test/java/org/apache/flink/runtime/scheduler/adaptive/allocator/AbstractRequestSlotMatchingStrategyTest.java: ########## @@ -0,0 +1,164 @@ +/* + * 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.adaptive.allocator; + +import org.apache.flink.runtime.clusterframework.types.AllocationID; +import org.apache.flink.runtime.clusterframework.types.ResourceProfile; +import org.apache.flink.runtime.jobgraph.JobVertexID; +import org.apache.flink.runtime.jobmaster.slotpool.PhysicalSlot; +import org.apache.flink.runtime.scheduler.loading.DefaultLoadingWeight; +import org.apache.flink.runtime.scheduler.loading.LoadingWeight; +import org.apache.flink.runtime.scheduler.strategy.ExecutionVertexID; +import org.apache.flink.runtime.taskmanager.LocalTaskManagerLocation; +import org.apache.flink.runtime.taskmanager.TaskManagerLocation; + +import org.junit.jupiter.api.BeforeEach; +import org.junit.jupiter.api.Test; + +import javax.annotation.Nonnull; + +import java.util.Arrays; +import java.util.Collection; +import java.util.List; +import java.util.Map; +import java.util.Set; +import java.util.stream.Collectors; +import java.util.stream.IntStream; + +import static org.apache.flink.runtime.scheduler.adaptive.JobSchedulingPlan.SlotAssignment; +import static org.apache.flink.runtime.scheduler.adaptive.allocator.SlotSharingSlotAllocator.ExecutionSlotSharingGroup; +import static org.assertj.core.api.Assertions.assertThat; + +/** Base testing class for the implementations of {@link RequestSlotMatchingStrategy}. */ +abstract class AbstractRequestSlotMatchingStrategyTest { + + protected final TaskManagerLocation tml1 = new LocalTaskManagerLocation(); + protected final TestingSlot slot1OfTml1 = createAnySlotOf(tml1); + protected final TestingSlot slot2OfTml1 = createAnySlotOf(tml1); + protected final TestingSlot slot3OfTml1 = createAnySlotOf(tml1); + + protected final TaskManagerLocation tml2 = new LocalTaskManagerLocation(); + protected final TestingSlot slot1OfTml2 = createAnySlotOf(tml2); + protected final TestingSlot slot2OfTml2 = createAnySlotOf(tml2); + protected final TestingSlot slot3OfTml2 = createAnySlotOf(tml2); + + protected final TaskManagerLocation tml3 = new LocalTaskManagerLocation(); + protected final TestingSlot slot1OfTml3 = createAnySlotOf(tml3); + protected final TestingSlot slot2OfTml3 = createAnySlotOf(tml3); + protected final TestingSlot slot3OfTml3 = createAnySlotOf(tml3); + + protected final ExecutionSlotSharingGroup requestGroup1 = createGroup(1); + protected final ExecutionSlotSharingGroup requestGroup2 = createGroup(2); + protected final ExecutionSlotSharingGroup requestGroup3 = createGroup(3); + protected final ExecutionSlotSharingGroup requestGroup4 = createGroup(4); + protected final ExecutionSlotSharingGroup requestGroup5 = createGroup(5); + protected final ExecutionSlotSharingGroup requestGroup6 = createGroup(6); + protected final ExecutionSlotSharingGroup requestGroup7 = createGroup(7); + + protected final List<PhysicalSlot> freeSlots = + Arrays.asList( + slot1OfTml1, + slot2OfTml1, + slot3OfTml1, + slot1OfTml2, + slot2OfTml2, + slot3OfTml2, + slot1OfTml3, + slot2OfTml3, + slot3OfTml3); + + protected final List<ExecutionSlotSharingGroup> requestedGroups = + Arrays.asList( + requestGroup1, + requestGroup2, + requestGroup3, + requestGroup4, + requestGroup5, + requestGroup6, + requestGroup7); + + protected RequestSlotMatchingStrategy requestSlotMatchingStrategy; + + @BeforeEach + protected void setUp() { + this.requestSlotMatchingStrategy = createRequestSlotMatcher(); + } + + protected abstract RequestSlotMatchingStrategy createRequestSlotMatcher(); + + protected abstract void assertAssignments(Collection<SlotAssignment> assignments); + + @Test + void testMatchRequestsWithSlots() { + Collection<SlotAssignment> slotAssignments = + requestSlotMatchingStrategy.matchRequestsWithSlots(requestedGroups, freeSlots); + assertAssignments(slotAssignments); + } + + protected static @Nonnull Map<TaskManagerLocation, Set<SlotAssignment>> + getAssignmentsPerTaskManager(Collection<SlotAssignment> assignments) { + return assignments.stream() + .collect( + Collectors.groupingBy( + assignment -> assignment.getSlotInfo().getTaskManagerLocation(), + Collectors.toSet())); + } + + private static TestingSlot createAnySlotOf(TaskManagerLocation tml) { + return new TestingSlot(new AllocationID(), ResourceProfile.ANY, tml); + } + + private static ExecutionSlotSharingGroup createGroup(int executionVertices) { + return new ExecutionSlotSharingGroup( + IntStream.range(0, executionVertices) + .mapToObj(ignored -> new ExecutionVertexID(new JobVertexID(), 0)) + .collect(Collectors.toSet())); + } +} + +/** Test for {@link TasksBalancedRequestSlotMatchingStrategy}. */ +class TasksBalancedRequestSlotMatchingStrategyTest extends AbstractRequestSlotMatchingStrategyTest { + + @Override + protected RequestSlotMatchingStrategy createRequestSlotMatcher() { + return TasksBalancedRequestSlotMatchingStrategy.INSTANCE; + } + + @Override + protected void assertAssignments(Collection<SlotAssignment> assignments) { + Map<TaskManagerLocation, Set<SlotAssignment>> assignmentsPerTm = + getAssignmentsPerTaskManager(assignments); + assertThat(assignmentsPerTm) + .allSatisfy( + (taskManagerLocation, slotAssignments) -> { + assertThat( + slotAssignments.stream() + .map( + s -> + s.getTargetAs( + ExecutionSlotSharingGroup + .class) + .getLoading()) + .reduce( + DefaultLoadingWeight.EMPTY, + LoadingWeight::merge) + .getLoading()) + .isGreaterThanOrEqualTo(9f); Review Comment: The assignment result is: - tm1: requestSSG1(loading=7) requestSSG1(loading=2) requestSSG1(loading=1) => loading=10 - tm2: requestSSG1(loading=6) requestSSG1(loading=3) => loading=9 - tm3: requestSSG1(loading=5) requestSSG1(loading=4) => loading=9 -- This is an automated message from the Apache Git Service. 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