| /** |
| * 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.fair; |
| |
| /** |
| * Helper class that holds basic information to be passed around |
| * FairScheduler classes. Think of this as a glorified map that holds key |
| * information about the scheduler. |
| */ |
| public class FSContext { |
| // Preemption-related info |
| private boolean preemptionEnabled = false; |
| private float preemptionUtilizationThreshold; |
| private FSStarvedApps starvedApps; |
| |
| public boolean isPreemptionEnabled() { |
| return preemptionEnabled; |
| } |
| |
| public void setPreemptionEnabled() { |
| this.preemptionEnabled = true; |
| if (starvedApps == null) { |
| starvedApps = new FSStarvedApps(); |
| } |
| } |
| |
| public FSStarvedApps getStarvedApps() { |
| return starvedApps; |
| } |
| |
| public float getPreemptionUtilizationThreshold() { |
| return preemptionUtilizationThreshold; |
| } |
| |
| public void setPreemptionUtilizationThreshold( |
| float preemptionUtilizationThreshold) { |
| this.preemptionUtilizationThreshold = preemptionUtilizationThreshold; |
| } |
| } |