| /** |
| * 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.nodemanager.containermanager.scheduler; |
| |
| import static org.mockito.Mockito.mock; |
| import static org.mockito.Mockito.when; |
| |
| import org.apache.hadoop.yarn.api.records.Resource; |
| import org.apache.hadoop.yarn.conf.YarnConfiguration; |
| import org.apache.hadoop.yarn.event.AsyncDispatcher; |
| import org.apache.hadoop.yarn.server.nodemanager.ContainerExecutor; |
| import org.apache.hadoop.yarn.server.nodemanager.Context; |
| import org.apache.hadoop.yarn.server.nodemanager.containermanager.container.Container; |
| import org.apache.hadoop.yarn.server.nodemanager.containermanager.monitor.ContainersMonitor; |
| import org.apache.hadoop.yarn.server.nodemanager.containermanager.monitor.ContainersMonitorImpl; |
| import org.junit.Assert; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| /** |
| * Tests for the {@link AllocationBasedResourceUtilizationTracker} class. |
| */ |
| public class TestAllocationBasedResourceUtilizationTracker { |
| |
| private ContainerScheduler mockContainerScheduler; |
| |
| @Before |
| public void setup() { |
| mockContainerScheduler = mock(ContainerScheduler.class); |
| ContainersMonitor containersMonitor = |
| new ContainersMonitorImpl(mock(ContainerExecutor.class), |
| mock(AsyncDispatcher.class), mock(Context.class)); |
| YarnConfiguration conf = new YarnConfiguration(); |
| conf.setInt(YarnConfiguration.NM_PMEM_MB, 1024); |
| conf.setBoolean(YarnConfiguration.NM_PMEM_CHECK_ENABLED, true); |
| conf.setBoolean(YarnConfiguration.NM_VMEM_CHECK_ENABLED, true); |
| conf.setFloat(YarnConfiguration.NM_VMEM_PMEM_RATIO, 2.0f); |
| conf.setInt(YarnConfiguration.NM_VCORES, 8); |
| containersMonitor.init(conf); |
| when(mockContainerScheduler.getContainersMonitor()) |
| .thenReturn(containersMonitor); |
| } |
| |
| /** |
| * Node has capacity for 1024 MB and 8 cores. Saturate the node. When full the |
| * hasResourceAvailable should return false. |
| */ |
| @Test |
| public void testHasResourcesAvailable() { |
| AllocationBasedResourceUtilizationTracker tracker = |
| new AllocationBasedResourceUtilizationTracker(mockContainerScheduler); |
| Container testContainer = mock(Container.class); |
| when(testContainer.getResource()).thenReturn(Resource.newInstance(512, 4)); |
| for (int i = 0; i < 2; i++) { |
| Assert.assertTrue(tracker.hasResourcesAvailable(testContainer)); |
| tracker.addContainerResources(testContainer); |
| } |
| Assert.assertFalse(tracker.hasResourcesAvailable(testContainer)); |
| } |
| |
| /** |
| * Test the case where the current allocation has been truncated to 0.8888891 |
| * (8/9 cores used). Request 1 additional core - hasEnoughCpu should return |
| * true. |
| */ |
| @Test |
| public void testHasEnoughCpu() { |
| AllocationBasedResourceUtilizationTracker tracker = |
| new AllocationBasedResourceUtilizationTracker(mockContainerScheduler); |
| float currentAllocation = 0.8888891f; |
| long totalCores = 9; |
| int alreadyUsedCores = 8; |
| Assert.assertTrue(tracker.hasEnoughCpu(currentAllocation, totalCores, |
| (int) totalCores - alreadyUsedCores)); |
| Assert.assertFalse(tracker.hasEnoughCpu(currentAllocation, totalCores, |
| (int) totalCores - alreadyUsedCores + 1)); |
| } |
| } |