org.apache.flink.runtime.scheduler.adaptivebatch.VertexParallelismAndInputInfosDecider Maven / Gradle / Ivy
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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,
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*/
package org.apache.flink.runtime.scheduler.adaptivebatch;
import org.apache.flink.api.common.ExecutionConfig;
import org.apache.flink.runtime.executiongraph.JobVertexInputInfo;
import org.apache.flink.runtime.executiongraph.ParallelismAndInputInfos;
import org.apache.flink.runtime.jobgraph.JobVertexID;
import java.util.List;
/**
* {@link VertexParallelismAndInputInfosDecider} is responsible for deciding the parallelism and
* {@link JobVertexInputInfo}s of a job vertex, based on the information of the consumed blocking
* results.
*/
public interface VertexParallelismAndInputInfosDecider {
/**
* Decide the parallelism and {@link JobVertexInputInfo}s for this job vertex.
*
* @param jobVertexId The job vertex id
* @param consumedResults The information of consumed blocking results
* @param vertexInitialParallelism The initial parallelism of the job vertex. If it's a positive
* number, it will be respected. If it's not set(equals to {@link
* ExecutionConfig#PARALLELISM_DEFAULT}), a parallelism will be automatically decided for
* the vertex.
* @param vertexMaxParallelism The max parallelism of the job vertex.
* @return the parallelism and vertex input infos.
*/
ParallelismAndInputInfos decideParallelismAndInputInfosForVertex(
JobVertexID jobVertexId,
List consumedResults,
int vertexInitialParallelism,
int vertexMaxParallelism);
}