| /** |
| * 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.util; |
| |
| import org.apache.hadoop.yarn.conf.YarnConfiguration; |
| import org.apache.hadoop.yarn.util.ResourceCalculatorPlugin; |
| import org.junit.Assert; |
| import org.junit.Test; |
| import org.mockito.Mockito; |
| |
| /** |
| * Test the various functions provided by the NodeManagerHardwareUtils class. |
| */ |
| public class TestNodeManagerHardwareUtils { |
| |
| static class TestResourceCalculatorPlugin extends ResourceCalculatorPlugin { |
| |
| TestResourceCalculatorPlugin() { |
| super(null); |
| } |
| |
| @Override |
| public long getVirtualMemorySize() { |
| return 0; |
| } |
| |
| @Override |
| public long getPhysicalMemorySize() { |
| long ret = Runtime.getRuntime().maxMemory() * 2; |
| ret = ret + (4L * 1024 * 1024 * 1024); |
| return ret; |
| } |
| |
| @Override |
| public long getAvailableVirtualMemorySize() { |
| return 0; |
| } |
| |
| @Override |
| public long getAvailablePhysicalMemorySize() { |
| return 0; |
| } |
| |
| @Override |
| public int getNumProcessors() { |
| return 8; |
| } |
| |
| @Override |
| public long getCpuFrequency() { |
| return 0; |
| } |
| |
| @Override |
| public long getCumulativeCpuTime() { |
| return 0; |
| } |
| |
| @Override |
| public float getCpuUsagePercentage() { |
| return 0; |
| } |
| |
| @Override |
| public int getNumCores() { |
| return 4; |
| } |
| } |
| |
| @Test |
| public void testGetContainerCPU() { |
| |
| YarnConfiguration conf = new YarnConfiguration(); |
| float ret; |
| final int numProcessors = 8; |
| final int numCores = 4; |
| ResourceCalculatorPlugin plugin = |
| Mockito.mock(ResourceCalculatorPlugin.class); |
| Mockito.doReturn(numProcessors).when(plugin).getNumProcessors(); |
| Mockito.doReturn(numCores).when(plugin).getNumCores(); |
| |
| conf.setInt(YarnConfiguration.NM_RESOURCE_PERCENTAGE_PHYSICAL_CPU_LIMIT, 0); |
| boolean catchFlag = false; |
| try { |
| NodeManagerHardwareUtils.getContainersCPUs(plugin, conf); |
| Assert.fail("getContainerCores should have thrown exception"); |
| } catch (IllegalArgumentException ie) { |
| catchFlag = true; |
| } |
| Assert.assertTrue(catchFlag); |
| |
| conf.setInt(YarnConfiguration.NM_RESOURCE_PERCENTAGE_PHYSICAL_CPU_LIMIT, |
| 100); |
| ret = NodeManagerHardwareUtils.getContainersCPUs(plugin, conf); |
| Assert.assertEquals(4, (int) ret); |
| |
| conf |
| .setInt(YarnConfiguration.NM_RESOURCE_PERCENTAGE_PHYSICAL_CPU_LIMIT, 50); |
| ret = NodeManagerHardwareUtils.getContainersCPUs(plugin, conf); |
| Assert.assertEquals(2, (int) ret); |
| |
| conf |
| .setInt(YarnConfiguration.NM_RESOURCE_PERCENTAGE_PHYSICAL_CPU_LIMIT, 75); |
| ret = NodeManagerHardwareUtils.getContainersCPUs(plugin, conf); |
| Assert.assertEquals(3, (int) ret); |
| |
| conf |
| .setInt(YarnConfiguration.NM_RESOURCE_PERCENTAGE_PHYSICAL_CPU_LIMIT, 85); |
| ret = NodeManagerHardwareUtils.getContainersCPUs(plugin, conf); |
| Assert.assertEquals(3.4, ret, 0.1); |
| |
| conf.setInt(YarnConfiguration.NM_RESOURCE_PERCENTAGE_PHYSICAL_CPU_LIMIT, |
| 110); |
| ret = NodeManagerHardwareUtils.getContainersCPUs(plugin, conf); |
| Assert.assertEquals(4, (int) ret); |
| } |
| |
| @Test |
| public void testGetVCores() { |
| |
| ResourceCalculatorPlugin plugin = new TestResourceCalculatorPlugin(); |
| YarnConfiguration conf = new YarnConfiguration(); |
| |
| conf.setFloat(YarnConfiguration.NM_PCORES_VCORES_MULTIPLIER, 1.25f); |
| |
| int ret = NodeManagerHardwareUtils.getVCores(plugin, conf); |
| Assert.assertEquals(YarnConfiguration.DEFAULT_NM_VCORES, ret); |
| |
| conf.setBoolean(YarnConfiguration.NM_ENABLE_HARDWARE_CAPABILITY_DETECTION, |
| true); |
| ret = NodeManagerHardwareUtils.getVCores(plugin, conf); |
| Assert.assertEquals(5, ret); |
| |
| conf.setBoolean(YarnConfiguration.NM_COUNT_LOGICAL_PROCESSORS_AS_CORES, |
| true); |
| ret = NodeManagerHardwareUtils.getVCores(plugin, conf); |
| Assert.assertEquals(10, ret); |
| |
| conf.setInt(YarnConfiguration.NM_VCORES, 10); |
| ret = NodeManagerHardwareUtils.getVCores(plugin, conf); |
| Assert.assertEquals(10, ret); |
| |
| YarnConfiguration conf1 = new YarnConfiguration(); |
| conf1.setBoolean(YarnConfiguration.NM_ENABLE_HARDWARE_CAPABILITY_DETECTION, |
| false); |
| conf.setInt(YarnConfiguration.NM_VCORES, 10); |
| ret = NodeManagerHardwareUtils.getVCores(plugin, conf); |
| Assert.assertEquals(10, ret); |
| } |
| |
| @Test |
| public void testGetContainerMemoryMB() throws Exception { |
| |
| ResourceCalculatorPlugin plugin = new TestResourceCalculatorPlugin(); |
| long physicalMemMB = plugin.getPhysicalMemorySize() / (1024 * 1024); |
| YarnConfiguration conf = new YarnConfiguration(); |
| conf.setBoolean(YarnConfiguration.NM_ENABLE_HARDWARE_CAPABILITY_DETECTION, |
| true); |
| long mem = NodeManagerHardwareUtils.getContainerMemoryMB(null, conf); |
| Assert.assertEquals(YarnConfiguration.DEFAULT_NM_PMEM_MB, mem); |
| |
| mem = NodeManagerHardwareUtils.getContainerMemoryMB(plugin, conf); |
| int hadoopHeapSizeMB = |
| (int) (Runtime.getRuntime().maxMemory() / (1024 * 1024)); |
| int calculatedMemMB = |
| (int) (0.8 * (physicalMemMB - (2 * hadoopHeapSizeMB))); |
| Assert.assertEquals(calculatedMemMB, mem); |
| |
| conf.setInt(YarnConfiguration.NM_PMEM_MB, 1024); |
| mem = NodeManagerHardwareUtils.getContainerMemoryMB(conf); |
| Assert.assertEquals(1024, mem); |
| |
| conf = new YarnConfiguration(); |
| conf.setBoolean(YarnConfiguration.NM_ENABLE_HARDWARE_CAPABILITY_DETECTION, |
| false); |
| mem = NodeManagerHardwareUtils.getContainerMemoryMB(conf); |
| Assert.assertEquals(YarnConfiguration.DEFAULT_NM_PMEM_MB, mem); |
| conf.setInt(YarnConfiguration.NM_PMEM_MB, 10 * 1024); |
| mem = NodeManagerHardwareUtils.getContainerMemoryMB(conf); |
| Assert.assertEquals(10 * 1024, mem); |
| } |
| } |