tillrohrmann commented on a change in pull request #13964: URL: https://github.com/apache/flink/pull/13964#discussion_r540026148
########## File path: flink-runtime/src/test/java/org/apache/flink/runtime/jobmaster/slotpool/DeclarativeSlotPoolBridgeTest.java ########## @@ -0,0 +1,209 @@ +/* + * 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.jobmaster.slotpool; + +import org.apache.flink.api.common.JobID; +import org.apache.flink.api.common.time.Time; +import org.apache.flink.runtime.clusterframework.types.AllocationID; +import org.apache.flink.runtime.clusterframework.types.ResourceProfile; +import org.apache.flink.runtime.concurrent.ComponentMainThreadExecutor; +import org.apache.flink.runtime.concurrent.ComponentMainThreadExecutorServiceAdapter; +import org.apache.flink.runtime.concurrent.FutureUtils; +import org.apache.flink.runtime.jobmanager.scheduler.NoResourceAvailableException; +import org.apache.flink.runtime.jobmaster.JobMasterId; +import org.apache.flink.runtime.jobmaster.RpcTaskManagerGateway; +import org.apache.flink.runtime.jobmaster.SlotRequestId; +import org.apache.flink.runtime.slots.ResourceRequirement; +import org.apache.flink.runtime.taskexecutor.TestingTaskExecutorGatewayBuilder; +import org.apache.flink.runtime.taskmanager.LocalTaskManagerLocation; +import org.apache.flink.util.ExceptionUtils; +import org.apache.flink.util.TestLogger; +import org.apache.flink.util.clock.SystemClock; + +import org.junit.Assert; +import org.junit.Test; + +import javax.annotation.Nonnull; + +import java.time.Duration; +import java.util.Arrays; +import java.util.Collection; +import java.util.Collections; +import java.util.List; +import java.util.Optional; +import java.util.concurrent.CompletableFuture; +import java.util.concurrent.ExecutionException; +import java.util.function.Consumer; +import java.util.stream.Collectors; + +import static org.hamcrest.CoreMatchers.is; +import static org.junit.Assert.assertThat; +import static org.junit.Assert.fail; + +/** + * Tests for the {@link DeclarativeSlotPoolBridge}. + */ +public class DeclarativeSlotPoolBridgeTest extends TestLogger { + + private static final Time rpcTimeout = Time.seconds(20); + private static final JobID jobId = new JobID(); + private static final JobMasterId jobMasterId = JobMasterId.generate(); + private final ComponentMainThreadExecutor mainThreadExecutor = ComponentMainThreadExecutorServiceAdapter.forMainThread(); + + @Test + public void testSlotOffer() throws Exception { + final SlotRequestId slotRequestId = new SlotRequestId(); + final AllocationID expectedAllocationId = new AllocationID(); + final PhysicalSlot allocatedSlot = createAllocatedSlot(expectedAllocationId); + + final TestingDeclarativeSlotPoolFactory declarativeSlotPoolFactory = new TestingDeclarativeSlotPoolFactory(TestingDeclarativeSlotPool.builder()); + try (DeclarativeSlotPoolBridge declarativeSlotPoolBridge = createDeclarativeSlotPoolBridge(declarativeSlotPoolFactory)) { + + declarativeSlotPoolBridge.start(jobMasterId, "localhost", mainThreadExecutor); + + CompletableFuture<PhysicalSlot> slotAllocationFuture = declarativeSlotPoolBridge.requestNewAllocatedSlot(slotRequestId, ResourceProfile.UNKNOWN, null); + + declarativeSlotPoolBridge.newSlotsAreAvailable(Collections.singleton(allocatedSlot)); + + slotAllocationFuture.join(); + } + } + + @Test + public void testNotEnoughResourcesAvailableFailsPendingRequests() throws Exception { + final SlotRequestId slotRequestId = new SlotRequestId(); + + final TestingDeclarativeSlotPoolFactory declarativeSlotPoolFactory = new TestingDeclarativeSlotPoolFactory(TestingDeclarativeSlotPool.builder()); + try (DeclarativeSlotPoolBridge declarativeSlotPoolBridge = createDeclarativeSlotPoolBridge(declarativeSlotPoolFactory)) { + + declarativeSlotPoolBridge.start(jobMasterId, "localhost", mainThreadExecutor); + + CompletableFuture<PhysicalSlot> slotAllocationFuture = CompletableFuture + .supplyAsync(() -> declarativeSlotPoolBridge.requestNewAllocatedSlot(slotRequestId, ResourceProfile.UNKNOWN, Time.minutes(5)), mainThreadExecutor) + .get(); + + mainThreadExecutor.execute(() -> declarativeSlotPoolBridge.notifyNotEnoughResourcesAvailable(Collections.emptyList())); + + try { + slotAllocationFuture.join(); + Assert.fail(); + } catch (Exception e) { + Optional<NoResourceAvailableException> expectedException = ExceptionUtils.findThrowable(e, NoResourceAvailableException.class); + assertThat(expectedException.isPresent(), is(true)); + } + } + } + + @Test + public void testReleasingAllocatedSlot() throws Exception { + final CompletableFuture<AllocationID> releaseSlotFuture = new CompletableFuture<>(); + final AllocationID expectedAllocationId = new AllocationID(); + final PhysicalSlot allocatedSlot = createAllocatedSlot(expectedAllocationId); + + final TestingDeclarativeSlotPoolBuilder builder = TestingDeclarativeSlotPool + .builder() + .setReserveFreeSlotFunction((allocationId, resourceProfile) -> { + assertThat(allocationId, is(expectedAllocationId)); + return allocatedSlot; + }) + .setFreeReservedSlotFunction((allocationID, throwable, aLong) -> { + releaseSlotFuture.complete(allocationID); + return ResourceCounter.empty(); + }); + + final TestingDeclarativeSlotPoolFactory declarativeSlotPoolFactory = new TestingDeclarativeSlotPoolFactory(builder); + try (DeclarativeSlotPoolBridge declarativeSlotPoolBridge = createDeclarativeSlotPoolBridge(declarativeSlotPoolFactory)) { + declarativeSlotPoolBridge.start(jobMasterId, "localhost", mainThreadExecutor); + + final SlotRequestId slotRequestId = new SlotRequestId(); + + declarativeSlotPoolBridge.allocateAvailableSlot(slotRequestId, expectedAllocationId, allocatedSlot.getResourceProfile()); + declarativeSlotPoolBridge.releaseSlot(slotRequestId, null); + + assertThat(releaseSlotFuture.join(), is(expectedAllocationId)); + } + } + + @Test + public void testNoConcurrentModificationWhenSuspendingAndReleasingSlot() throws Exception { + try (DeclarativeSlotPoolBridge declarativeSlotPoolBridge = createDeclarativeSlotPoolBridge(new DefaultDeclarativeSlotPoolFactory())) { + + declarativeSlotPoolBridge.start(jobMasterId, "localhost", mainThreadExecutor); + + final List<SlotRequestId> slotRequestIds = Arrays.asList(new SlotRequestId(), new SlotRequestId()); + + final List<CompletableFuture<PhysicalSlot>> slotFutures = slotRequestIds.stream() + .map(slotRequestId -> { + final CompletableFuture<PhysicalSlot> slotFuture = declarativeSlotPoolBridge.requestNewAllocatedSlot(slotRequestId, ResourceProfile.UNKNOWN, rpcTimeout); + slotFuture.whenComplete((physicalSlot, throwable) -> { + if (throwable != null) { + declarativeSlotPoolBridge.releaseSlot(slotRequestId, throwable); + } + }); + return slotFuture; + }) + .collect(Collectors.toList()); + + declarativeSlotPoolBridge.suspend(); + + try { + FutureUtils.waitForAll(slotFutures).get(); Review comment: Shouldn't they all be failed eventually when calling `declarativeSlotPoolBridge.suspend`? ---------------------------------------------------------------- This is an automated message from the Apache Git Service. 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