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[FLINK-17016][runtime] Enable to use pipelined region scheduling stra…
…tegy It can be enabled via config option "jobmanager.scheduler.scheduling-strategy=region"
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172 changes: 172 additions & 0 deletions
172
...-runtime/src/main/java/org/apache/flink/runtime/scheduler/DefaultSchedulerComponents.java
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| /* | ||
| * 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. | ||
| */ | ||
|
|
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| package org.apache.flink.runtime.scheduler; | ||
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| import org.apache.flink.api.common.time.Time; | ||
| import org.apache.flink.configuration.CheckpointingOptions; | ||
| import org.apache.flink.configuration.ClusterOptions; | ||
| import org.apache.flink.configuration.Configuration; | ||
| import org.apache.flink.configuration.JobManagerOptions; | ||
| import org.apache.flink.runtime.concurrent.ComponentMainThreadExecutor; | ||
| import org.apache.flink.runtime.executiongraph.SlotProviderStrategy; | ||
| import org.apache.flink.runtime.jobgraph.ScheduleMode; | ||
| import org.apache.flink.runtime.jobmaster.slotpool.LocationPreferenceSlotSelectionStrategy; | ||
| import org.apache.flink.runtime.jobmaster.slotpool.PhysicalSlotProvider; | ||
| import org.apache.flink.runtime.jobmaster.slotpool.PhysicalSlotProviderImpl; | ||
| import org.apache.flink.runtime.jobmaster.slotpool.PhysicalSlotRequestBulkChecker; | ||
| import org.apache.flink.runtime.jobmaster.slotpool.PhysicalSlotRequestBulkCheckerImpl; | ||
| import org.apache.flink.runtime.jobmaster.slotpool.PreviousAllocationSlotSelectionStrategy; | ||
| import org.apache.flink.runtime.jobmaster.slotpool.Scheduler; | ||
| import org.apache.flink.runtime.jobmaster.slotpool.SchedulerImpl; | ||
| import org.apache.flink.runtime.jobmaster.slotpool.SlotPool; | ||
| import org.apache.flink.runtime.jobmaster.slotpool.SlotSelectionStrategy; | ||
| import org.apache.flink.runtime.scheduler.strategy.EagerSchedulingStrategy; | ||
| import org.apache.flink.runtime.scheduler.strategy.LazyFromSourcesSchedulingStrategy; | ||
| import org.apache.flink.runtime.scheduler.strategy.PipelinedRegionSchedulingStrategy; | ||
| import org.apache.flink.runtime.scheduler.strategy.SchedulingStrategyFactory; | ||
| import org.apache.flink.util.clock.SystemClock; | ||
|
|
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| import java.util.function.Consumer; | ||
|
|
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| /** | ||
| * Components to create a {@link DefaultScheduler} which depends on the | ||
| * configured {@link JobManagerOptions#SCHEDULING_STRATEGY}. | ||
| */ | ||
| public class DefaultSchedulerComponents { | ||
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| private static final String PIPELINED_REGION_SCHEDULING = "region"; | ||
| private static final String LEGACY_SCHEDULING = "legacy"; | ||
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| private final SchedulingStrategyFactory schedulingStrategyFactory; | ||
| private final Consumer<ComponentMainThreadExecutor> startUpAction; | ||
| private final ExecutionSlotAllocatorFactory allocatorFactory; | ||
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| private DefaultSchedulerComponents( | ||
| final SchedulingStrategyFactory schedulingStrategyFactory, | ||
| final Consumer<ComponentMainThreadExecutor> startUpAction, | ||
| final ExecutionSlotAllocatorFactory allocatorFactory) { | ||
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| this.schedulingStrategyFactory = schedulingStrategyFactory; | ||
| this.startUpAction = startUpAction; | ||
| this.allocatorFactory = allocatorFactory; | ||
| } | ||
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| SchedulingStrategyFactory getSchedulingStrategyFactory() { | ||
| return schedulingStrategyFactory; | ||
| } | ||
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| Consumer<ComponentMainThreadExecutor> getStartUpAction() { | ||
| return startUpAction; | ||
| } | ||
|
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| ExecutionSlotAllocatorFactory getAllocatorFactory() { | ||
| return allocatorFactory; | ||
| } | ||
|
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| static DefaultSchedulerComponents createSchedulerComponents( | ||
| final ScheduleMode scheduleMode, | ||
| final Configuration jobMasterConfiguration, | ||
| final SlotPool slotPool, | ||
| final Time slotRequestTimeout) { | ||
|
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| final String schedulingStrategy = jobMasterConfiguration.getString(JobManagerOptions.SCHEDULING_STRATEGY); | ||
| switch (schedulingStrategy) { | ||
| case PIPELINED_REGION_SCHEDULING: | ||
| return createPipelinedRegionSchedulerComponents( | ||
| scheduleMode, | ||
| jobMasterConfiguration, | ||
| slotPool, | ||
| slotRequestTimeout); | ||
| case LEGACY_SCHEDULING: | ||
| return createLegacySchedulerComponents( | ||
| scheduleMode, | ||
| jobMasterConfiguration, | ||
| slotPool, | ||
| slotRequestTimeout); | ||
| default: | ||
| throw new IllegalStateException("Unsupported scheduling strategy " + schedulingStrategy); | ||
| } | ||
| } | ||
|
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| private static DefaultSchedulerComponents createLegacySchedulerComponents( | ||
| final ScheduleMode scheduleMode, | ||
| final Configuration jobMasterConfiguration, | ||
| final SlotPool slotPool, | ||
| final Time slotRequestTimeout) { | ||
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| final SlotSelectionStrategy slotSelectionStrategy = selectSlotSelectionStrategy(jobMasterConfiguration); | ||
| final Scheduler scheduler = new SchedulerImpl(slotSelectionStrategy, slotPool); | ||
| final SlotProviderStrategy slotProviderStrategy = SlotProviderStrategy.from( | ||
| scheduleMode, | ||
| scheduler, | ||
| slotRequestTimeout); | ||
| return new DefaultSchedulerComponents( | ||
| createLegacySchedulingStrategyFactory(scheduleMode), | ||
| scheduler::start, | ||
| new DefaultExecutionSlotAllocatorFactory(slotProviderStrategy)); | ||
| } | ||
|
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| private static SchedulingStrategyFactory createLegacySchedulingStrategyFactory(final ScheduleMode scheduleMode) { | ||
| switch (scheduleMode) { | ||
| case EAGER: | ||
| return new EagerSchedulingStrategy.Factory(); | ||
| case LAZY_FROM_SOURCES_WITH_BATCH_SLOT_REQUEST: | ||
| case LAZY_FROM_SOURCES: | ||
| return new LazyFromSourcesSchedulingStrategy.Factory(); | ||
| default: | ||
| throw new IllegalStateException("Unsupported schedule mode " + scheduleMode); | ||
| } | ||
| } | ||
|
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| private static DefaultSchedulerComponents createPipelinedRegionSchedulerComponents( | ||
| final ScheduleMode scheduleMode, | ||
| final Configuration jobMasterConfiguration, | ||
| final SlotPool slotPool, | ||
| final Time slotRequestTimeout) { | ||
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| final SlotSelectionStrategy slotSelectionStrategy = selectSlotSelectionStrategy(jobMasterConfiguration); | ||
| final PhysicalSlotRequestBulkChecker bulkChecker = PhysicalSlotRequestBulkCheckerImpl | ||
| .createFromSlotPool(slotPool, SystemClock.getInstance()); | ||
| final PhysicalSlotProvider physicalSlotProvider = new PhysicalSlotProviderImpl(slotSelectionStrategy, slotPool); | ||
| final ExecutionSlotAllocatorFactory allocatorFactory = new SlotSharingExecutionSlotAllocatorFactory( | ||
| physicalSlotProvider, | ||
| scheduleMode != ScheduleMode.LAZY_FROM_SOURCES_WITH_BATCH_SLOT_REQUEST, | ||
| bulkChecker, | ||
| slotRequestTimeout); | ||
| return new DefaultSchedulerComponents( | ||
| new PipelinedRegionSchedulingStrategy.Factory(), | ||
| bulkChecker::start, | ||
| allocatorFactory); | ||
| } | ||
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| private static SlotSelectionStrategy selectSlotSelectionStrategy(final Configuration configuration) { | ||
| final boolean evenlySpreadOutSlots = configuration.getBoolean(ClusterOptions.EVENLY_SPREAD_OUT_SLOTS_STRATEGY); | ||
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| final SlotSelectionStrategy locationPreferenceSlotSelectionStrategy; | ||
|
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| locationPreferenceSlotSelectionStrategy = evenlySpreadOutSlots ? | ||
| LocationPreferenceSlotSelectionStrategy.createEvenlySpreadOut() : | ||
| LocationPreferenceSlotSelectionStrategy.createDefault(); | ||
|
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| return configuration.getBoolean(CheckpointingOptions.LOCAL_RECOVERY) ? | ||
| PreviousAllocationSlotSelectionStrategy.create(locationPreferenceSlotSelectionStrategy) : | ||
| locationPreferenceSlotSelectionStrategy; | ||
| } | ||
| } |
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