| /** |
| * 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.policy; |
| |
| import java.util.*; |
| import java.util.concurrent.ConcurrentSkipListSet; |
| |
| import org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacitySchedulerConfiguration; |
| import org.apache.hadoop.yarn.server.resourcemanager.rmcontainer.RMContainer; |
| |
| /** |
| * An OrderingPolicy which orders SchedulableEntities by input order |
| */ |
| public class FifoOrderingPolicy<S extends SchedulableEntity> extends AbstractComparatorOrderingPolicy<S> { |
| |
| public FifoOrderingPolicy() { |
| List<Comparator<SchedulableEntity>> comparators = |
| new ArrayList<Comparator<SchedulableEntity>>(); |
| comparators.add(new PriorityComparator()); |
| comparators.add(new FifoComparator()); |
| this.comparator = new CompoundComparator(comparators); |
| this.schedulableEntities = new ConcurrentSkipListSet<S>(comparator); |
| |
| } |
| |
| @Override |
| public void configure(Map<String, String> conf) { |
| |
| } |
| |
| @Override |
| public void containerAllocated(S schedulableEntity, |
| RMContainer r) { |
| } |
| |
| @Override |
| public void containerReleased(S schedulableEntity, |
| RMContainer r) { |
| } |
| |
| @Override |
| public void demandUpdated(S schedulableEntity) { |
| } |
| |
| @Override |
| public String getInfo() { |
| return "FifoOrderingPolicy"; |
| } |
| |
| @Override |
| public String getConfigName() { |
| return CapacitySchedulerConfiguration.FIFO_APP_ORDERING_POLICY; |
| } |
| |
| } |