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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.
*/
package org.apache.flink.runtime.io.network.partition;
import org.apache.flink.api.common.JobID;
import org.apache.flink.runtime.clusterframework.types.ResourceID;
import org.apache.flink.runtime.deployment.ResultPartitionDeploymentDescriptor;
import org.apache.flink.runtime.shuffle.ShuffleMaster;
import org.apache.flink.util.CollectionUtil;
import org.apache.flink.util.Preconditions;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import static java.util.stream.Collectors.toList;
/**
* Utility for tracking partitions and issuing release calls to task executors and shuffle masters.
*/
public class JobMasterPartitionTrackerImpl
extends AbstractPartitionTracker
implements JobMasterPartitionTracker {
private final JobID jobId;
private final ShuffleMaster shuffleMaster;
private final PartitionTrackerFactory.TaskExecutorGatewayLookup taskExecutorGatewayLookup;
public JobMasterPartitionTrackerImpl(
JobID jobId,
ShuffleMaster shuffleMaster,
PartitionTrackerFactory.TaskExecutorGatewayLookup taskExecutorGatewayLookup) {
this.jobId = Preconditions.checkNotNull(jobId);
this.shuffleMaster = Preconditions.checkNotNull(shuffleMaster);
this.taskExecutorGatewayLookup = taskExecutorGatewayLookup;
}
@Override
public void startTrackingPartition(
ResourceID producingTaskExecutorId,
ResultPartitionDeploymentDescriptor resultPartitionDeploymentDescriptor) {
Preconditions.checkNotNull(producingTaskExecutorId);
Preconditions.checkNotNull(resultPartitionDeploymentDescriptor);
// blocking and PIPELINED_APPROXIMATE partitions require explicit partition release calls
// reconnectable will be removed after FLINK-19895, see also {@link
// ResultPartitionType#isReconnectable}.
if (!resultPartitionDeploymentDescriptor.getPartitionType().isReconnectable()) {
return;
}
final ResultPartitionID resultPartitionId =
resultPartitionDeploymentDescriptor.getShuffleDescriptor().getResultPartitionID();
startTrackingPartition(
producingTaskExecutorId, resultPartitionId, resultPartitionDeploymentDescriptor);
}
@Override
public void stopTrackingAndReleasePartitions(Collection resultPartitionIds) {
Preconditions.checkNotNull(resultPartitionIds);
// stop tracking partitions to be released and group them by task executor ID
Map> partitionsToReleaseByResourceId =
stopTrackingPartitions(resultPartitionIds).stream()
.collect(
Collectors.groupingBy(
PartitionTrackerEntry::getKey,
Collectors.mapping(
PartitionTrackerEntry::getMetaInfo, toList())));
partitionsToReleaseByResourceId.forEach(this::internalReleasePartitions);
}
@Override
public void stopTrackingAndReleasePartitionsFor(ResourceID producingTaskExecutorId) {
Preconditions.checkNotNull(producingTaskExecutorId);
Collection resultPartitionIds =
CollectionUtil.project(
stopTrackingPartitionsFor(producingTaskExecutorId),
PartitionTrackerEntry::getMetaInfo);
internalReleasePartitions(producingTaskExecutorId, resultPartitionIds);
}
@Override
public void stopTrackingAndReleaseOrPromotePartitionsFor(ResourceID producingTaskExecutorId) {
Preconditions.checkNotNull(producingTaskExecutorId);
Collection resultPartitionIds =
CollectionUtil.project(
stopTrackingPartitionsFor(producingTaskExecutorId),
PartitionTrackerEntry::getMetaInfo);
internalReleaseOrPromotePartitions(producingTaskExecutorId, resultPartitionIds);
}
private void internalReleasePartitions(
ResourceID potentialPartitionLocation,
Collection partitionDeploymentDescriptors) {
internalReleasePartitionsOnTaskExecutor(
potentialPartitionLocation, partitionDeploymentDescriptors);
internalReleasePartitionsOnShuffleMaster(partitionDeploymentDescriptors.stream());
}
private void internalReleaseOrPromotePartitions(
ResourceID potentialPartitionLocation,
Collection partitionDeploymentDescriptors) {
internalReleaseOrPromotePartitionsOnTaskExecutor(
potentialPartitionLocation, partitionDeploymentDescriptors);
internalReleasePartitionsOnShuffleMaster(
excludePersistentPartitions(partitionDeploymentDescriptors));
}
private void internalReleasePartitionsOnTaskExecutor(
ResourceID potentialPartitionLocation,
Collection partitionDeploymentDescriptors) {
final Set partitionsRequiringRpcReleaseCalls =
partitionDeploymentDescriptors.stream()
.filter(JobMasterPartitionTrackerImpl::isPartitionWithLocalResources)
.map(JobMasterPartitionTrackerImpl::getResultPartitionId)
.collect(Collectors.toSet());
internalReleaseOrPromotePartitionsOnTaskExecutor(
potentialPartitionLocation,
partitionsRequiringRpcReleaseCalls,
Collections.emptySet());
}
private void internalReleaseOrPromotePartitionsOnTaskExecutor(
ResourceID potentialPartitionLocation,
Collection partitionDeploymentDescriptors) {
Map> partitionsToReleaseByPersistence =
partitionDeploymentDescriptors.stream()
.filter(JobMasterPartitionTrackerImpl::isPartitionWithLocalResources)
.collect(
Collectors.partitioningBy(
resultPartitionDeploymentDescriptor ->
resultPartitionDeploymentDescriptor
.getPartitionType()
.isPersistent(),
Collectors.mapping(
JobMasterPartitionTrackerImpl::getResultPartitionId,
Collectors.toSet())));
internalReleaseOrPromotePartitionsOnTaskExecutor(
potentialPartitionLocation,
partitionsToReleaseByPersistence.get(false),
partitionsToReleaseByPersistence.get(true));
}
private void internalReleaseOrPromotePartitionsOnTaskExecutor(
ResourceID potentialPartitionLocation,
Set partitionsRequiringRpcReleaseCalls,
Set partitionsRequiringRpcPromoteCalls) {
if (!partitionsRequiringRpcReleaseCalls.isEmpty()
|| !partitionsRequiringRpcPromoteCalls.isEmpty()) {
taskExecutorGatewayLookup
.lookup(potentialPartitionLocation)
.ifPresent(
taskExecutorGateway ->
taskExecutorGateway.releaseOrPromotePartitions(
jobId,
partitionsRequiringRpcReleaseCalls,
partitionsRequiringRpcPromoteCalls));
}
}
private void internalReleasePartitionsOnShuffleMaster(
Stream partitionDeploymentDescriptors) {
partitionDeploymentDescriptors
.map(ResultPartitionDeploymentDescriptor::getShuffleDescriptor)
.forEach(shuffleMaster::releasePartitionExternally);
}
private static boolean isPartitionWithLocalResources(
ResultPartitionDeploymentDescriptor resultPartitionDeploymentDescriptor) {
return resultPartitionDeploymentDescriptor
.getShuffleDescriptor()
.storesLocalResourcesOn()
.isPresent();
}
private static Stream excludePersistentPartitions(
Collection partitionDeploymentDescriptors) {
return partitionDeploymentDescriptors.stream()
.filter(
resultPartitionDeploymentDescriptor ->
!resultPartitionDeploymentDescriptor
.getPartitionType()
.isPersistent());
}
private static ResultPartitionID getResultPartitionId(
ResultPartitionDeploymentDescriptor resultPartitionDeploymentDescriptor) {
return resultPartitionDeploymentDescriptor.getShuffleDescriptor().getResultPartitionID();
}
}
