| /** |
| * 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; |
| |
| import org.apache.hadoop.yarn.api.records.ContainerId; |
| import org.apache.hadoop.yarn.api.records.NodeId; |
| import org.apache.hadoop.yarn.api.records.Priority; |
| import org.apache.hadoop.yarn.api.records.Resource; |
| import org.apache.hadoop.yarn.server.resourcemanager.RMContext; |
| import org.apache.hadoop.yarn.server.resourcemanager.rmcontainer.RMContainer; |
| import org.apache.hadoop.yarn.util.resource.Resources; |
| |
| /** |
| * This is UpdateContainerRequest in scheduler side, it contains some |
| * pointers to runtime objects like RMContainer, SchedulerNode, etc. This will |
| * be easier for scheduler making decision. |
| */ |
| public class SchedContainerChangeRequest implements |
| Comparable<SchedContainerChangeRequest> { |
| private RMContext rmContext; |
| private RMContainer rmContainer; |
| private Resource targetCapacity; |
| private SchedulerNode schedulerNode; |
| private Resource deltaCapacity; |
| |
| public SchedContainerChangeRequest( |
| RMContext rmContext, SchedulerNode schedulerNode, |
| RMContainer rmContainer, Resource targetCapacity) { |
| this.rmContext = rmContext; |
| this.rmContainer = rmContainer; |
| this.targetCapacity = targetCapacity; |
| this.schedulerNode = schedulerNode; |
| } |
| |
| public NodeId getNodeId() { |
| return this.rmContainer.getAllocatedNode(); |
| } |
| |
| public RMContainer getRMContainer() { |
| return this.rmContainer; |
| } |
| |
| public Resource getTargetCapacity() { |
| return this.targetCapacity; |
| } |
| |
| public RMContext getRmContext() { |
| return this.rmContext; |
| } |
| /** |
| * Delta capacity = target - before, so if it is a decrease request, delta |
| * capacity will be negative |
| */ |
| public synchronized Resource getDeltaCapacity() { |
| // Only calculate deltaCapacity once |
| if (deltaCapacity == null) { |
| deltaCapacity = Resources.subtract( |
| targetCapacity, rmContainer.getAllocatedResource()); |
| } |
| return deltaCapacity; |
| } |
| |
| public Priority getPriority() { |
| return rmContainer.getContainer().getPriority(); |
| } |
| |
| public ContainerId getContainerId() { |
| return rmContainer.getContainerId(); |
| } |
| |
| public String getNodePartition() { |
| return schedulerNode.getPartition(); |
| } |
| |
| public SchedulerNode getSchedulerNode() { |
| return schedulerNode; |
| } |
| |
| @Override |
| public int hashCode() { |
| return (getContainerId().hashCode() << 16) + targetCapacity.hashCode(); |
| } |
| |
| @Override |
| public boolean equals(Object other) { |
| if (!(other instanceof SchedContainerChangeRequest)) { |
| return false; |
| } |
| return compareTo((SchedContainerChangeRequest)other) == 0; |
| } |
| |
| @Override |
| public int compareTo(SchedContainerChangeRequest other) { |
| if (other == null) { |
| return -1; |
| } |
| |
| int rc = getPriority().compareTo(other.getPriority()); |
| if (0 != rc) { |
| return rc; |
| } |
| |
| return getContainerId().compareTo(other.getContainerId()); |
| } |
| |
| @Override |
| public String toString() { |
| return "<container=" + getContainerId() + ", targetCapacity=" |
| + targetCapacity + ", node=" + getNodeId().toString() + ">"; |
| } |
| } |