| /** |
| * 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.hadoop.yarn.server.resourcemanager.scheduler.capacity; |
| |
| import java.util.Set; |
| |
| import org.apache.hadoop.yarn.api.records.Resource; |
| import org.apache.hadoop.yarn.server.resourcemanager.nodelabels.RMNodeLabelsManager; |
| import org.apache.hadoop.yarn.server.resourcemanager.scheduler.common.fica.FiCaSchedulerApp; |
| import org.apache.hadoop.yarn.util.resource.Resources; |
| |
| public class CapacityHeadroomProvider { |
| |
| UsersManager.User user; |
| LeafQueue queue; |
| FiCaSchedulerApp application; |
| LeafQueue.QueueResourceLimitsInfo queueResourceLimitsInfo; |
| |
| public CapacityHeadroomProvider(UsersManager.User user, LeafQueue queue, |
| FiCaSchedulerApp application, |
| LeafQueue.QueueResourceLimitsInfo queueResourceLimitsInfo) { |
| |
| this.user = user; |
| this.queue = queue; |
| this.application = application; |
| this.queueResourceLimitsInfo = queueResourceLimitsInfo; |
| } |
| |
| public Resource getHeadroom() { |
| |
| Resource queueCurrentLimit; |
| Resource clusterResource; |
| synchronized (queueResourceLimitsInfo) { |
| queueCurrentLimit = queueResourceLimitsInfo.getQueueCurrentLimit(); |
| clusterResource = queueResourceLimitsInfo.getClusterResource(); |
| } |
| Set<String> requestedPartitions = |
| application.getAppSchedulingInfo().getRequestedPartitions(); |
| Resource headroom; |
| if (requestedPartitions.isEmpty() || (requestedPartitions.size() == 1 |
| && requestedPartitions.contains(RMNodeLabelsManager.NO_LABEL))) { |
| headroom = queue.getHeadroom(user, queueCurrentLimit, clusterResource, |
| application); |
| } else { |
| headroom = Resource.newInstance(0, 0); |
| for (String partition : requestedPartitions) { |
| Resource partitionHeadRoom = queue.getHeadroom(user, queueCurrentLimit, |
| clusterResource, application, partition); |
| Resources.addTo(headroom, partitionHeadRoom); |
| } |
| } |
| // Corner case to deal with applications being slightly over-limit |
| if (headroom.getMemorySize() < 0) { |
| headroom.setMemorySize(0); |
| } |
| return headroom; |
| } |
| } |