dmvk commented on a change in pull request #18238: URL: https://github.com/apache/flink/pull/18238#discussion_r776611441
########## File path: flink-runtime/src/main/java/org/apache/flink/runtime/scheduler/adaptive/allocator/StateLocalitySlotAssigner.java ########## @@ -0,0 +1,301 @@ +/* + * 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.executiongraph.ArchivedExecutionGraph; +import org.apache.flink.runtime.executiongraph.ArchivedExecutionJobVertex; +import org.apache.flink.runtime.executiongraph.ArchivedExecutionVertex; +import org.apache.flink.runtime.instance.SlotSharingGroupId; +import org.apache.flink.runtime.jobgraph.JobVertexID; +import org.apache.flink.runtime.jobmanager.scheduler.SlotSharingGroup; +import org.apache.flink.runtime.jobmaster.SlotInfo; +import org.apache.flink.runtime.scheduler.strategy.ExecutionVertexID; +import org.apache.flink.runtime.state.KeyGroupRange; +import org.apache.flink.runtime.state.KeyGroupRangeAssignment; +import org.apache.flink.util.Preconditions; + +import org.apache.flink.shaded.guava30.com.google.common.base.MoreObjects; + +import javax.annotation.Nullable; + +import java.util.ArrayList; +import java.util.Collection; +import java.util.Collections; +import java.util.Comparator; +import java.util.HashMap; +import java.util.HashSet; +import java.util.Iterator; +import java.util.List; +import java.util.Map; +import java.util.Objects; +import java.util.PriorityQueue; +import java.util.Set; +import java.util.function.Function; +import java.util.stream.Collectors; +import java.util.stream.StreamSupport; + +/** A {@link SlotAssigner} that assigns slots based on the number of local key groups. */ +public class StateLocalitySlotAssigner implements SlotAssigner { + + private static class AllocationScore<T extends Comparable<? super T>> + implements Comparable<AllocationScore<T>> { + + private final T id; + private final AllocationID allocationId; + + public AllocationScore(T id, AllocationID allocationId, int score) { + this.id = id; + this.allocationId = allocationId; + this.score = score; + } + + private final int score; + + public T getId() { + return id; + } + + public AllocationID getAllocationId() { + return allocationId; + } + + public int getScore() { + return score; + } + + @Override + public int compareTo(StateLocalitySlotAssigner.AllocationScore<T> other) { + int result = Integer.compare(score, other.score); + if (result != 0) { + return result; + } + result = other.allocationId.compareTo(allocationId); + if (result != 0) { + return result; + } + return other.id.compareTo(id); Review comment: the id comparison is only important to get a deterministic result for testing -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: issues-unsubscr...@flink.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
