| /** |
| * 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; |
| |
| import org.apache.hadoop.yarn.util.SystemClock; |
| import org.apache.hadoop.yarn.util.resource.DefaultResourceCalculator; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| import java.util.HashSet; |
| import java.util.Set; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.mockito.Mockito.mock; |
| import static org.mockito.Mockito.when; |
| |
| public class TestFSParentQueue { |
| |
| private FairSchedulerConfiguration conf; |
| private QueueManager queueManager; |
| private Set<FSQueue> notEmptyQueues; |
| |
| @Before |
| public void setUp() throws Exception { |
| conf = new FairSchedulerConfiguration(); |
| FairScheduler scheduler = mock(FairScheduler.class); |
| AllocationConfiguration allocConf = new AllocationConfiguration(conf); |
| when(scheduler.getAllocationConfiguration()).thenReturn(allocConf); |
| when(scheduler.getConf()).thenReturn(conf); |
| when(scheduler.getResourceCalculator()).thenReturn( |
| new DefaultResourceCalculator()); |
| SystemClock clock = SystemClock.getInstance(); |
| when(scheduler.getClock()).thenReturn(clock); |
| notEmptyQueues = new HashSet<FSQueue>(); |
| queueManager = new QueueManager(scheduler) { |
| @Override |
| public boolean isEmpty(FSQueue queue) { |
| return !notEmptyQueues.contains(queue); |
| } |
| }; |
| FSQueueMetrics.forQueue("root", null, true, conf); |
| queueManager.initialize(conf); |
| } |
| |
| @Test |
| public void testConcurrentChangeToGetChildQueue() { |
| |
| queueManager.getLeafQueue("parent.child", true); |
| queueManager.getLeafQueue("parent.child2", true); |
| FSParentQueue test = queueManager.getParentQueue("parent", false); |
| assertEquals(2, test.getChildQueues().size()); |
| |
| boolean first = true; |
| int childQueuesFound = 0; |
| for (FSQueue childQueue:test.getChildQueues()) { |
| if (first) { |
| first = false; |
| queueManager.getLeafQueue("parent.child3", true); |
| } |
| childQueuesFound++; |
| } |
| |
| assertEquals(2, childQueuesFound); |
| assertEquals(3, test.getChildQueues().size()); |
| } |
| } |