| /** |
| * 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.linux.resources; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.yarn.api.records.ContainerId; |
| import org.apache.hadoop.yarn.api.records.Resource; |
| import org.apache.hadoop.yarn.conf.YarnConfiguration; |
| import org.apache.hadoop.yarn.server.nodemanager.containermanager.container.Container; |
| import org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.privileged.PrivilegedOperation; |
| import org.junit.Before; |
| import org.junit.Test; |
| import org.junit.Assert; |
| |
| import java.util.List; |
| |
| import static org.mockito.Mockito.*; |
| |
| public class TestCGroupsMemoryResourceHandlerImpl { |
| |
| private CGroupsHandler mockCGroupsHandler; |
| private CGroupsMemoryResourceHandlerImpl cGroupsMemoryResourceHandler; |
| |
| @Before |
| public void setup() { |
| mockCGroupsHandler = mock(CGroupsHandler.class); |
| cGroupsMemoryResourceHandler = |
| new CGroupsMemoryResourceHandlerImpl(mockCGroupsHandler); |
| } |
| |
| @Test |
| public void testBootstrap() throws Exception { |
| Configuration conf = new YarnConfiguration(); |
| conf.setBoolean(YarnConfiguration.NM_PMEM_CHECK_ENABLED, false); |
| conf.setBoolean(YarnConfiguration.NM_VMEM_CHECK_ENABLED, false); |
| List<PrivilegedOperation> ret = |
| cGroupsMemoryResourceHandler.bootstrap(conf); |
| verify(mockCGroupsHandler, times(1)) |
| .initializeCGroupController(CGroupsHandler.CGroupController.MEMORY); |
| Assert.assertNull(ret); |
| Assert.assertEquals("Default swappiness value incorrect", 0, |
| cGroupsMemoryResourceHandler.getSwappiness()); |
| conf.setBoolean(YarnConfiguration.NM_PMEM_CHECK_ENABLED, true); |
| try { |
| cGroupsMemoryResourceHandler.bootstrap(conf); |
| Assert.fail("Pmem check should not be allowed to run with cgroups"); |
| } |
| catch(ResourceHandlerException re) { |
| // do nothing |
| } |
| conf.setBoolean(YarnConfiguration.NM_PMEM_CHECK_ENABLED, false); |
| conf.setBoolean(YarnConfiguration.NM_VMEM_CHECK_ENABLED, true); |
| try { |
| cGroupsMemoryResourceHandler.bootstrap(conf); |
| Assert.fail("Vmem check should not be allowed to run with cgroups"); |
| } |
| catch(ResourceHandlerException re) { |
| // do nothing |
| } |
| } |
| |
| @Test |
| public void testSwappinessValues() throws Exception { |
| Configuration conf = new YarnConfiguration(); |
| conf.setBoolean(YarnConfiguration.NM_PMEM_CHECK_ENABLED, false); |
| conf.setBoolean(YarnConfiguration.NM_VMEM_CHECK_ENABLED, false); |
| conf.setInt(YarnConfiguration.NM_MEMORY_RESOURCE_CGROUPS_SWAPPINESS, -1); |
| try { |
| cGroupsMemoryResourceHandler.bootstrap(conf); |
| Assert.fail("Negative values for swappiness should not be allowed."); |
| } |
| catch (ResourceHandlerException re) { |
| // do nothing |
| } |
| try { |
| conf.setInt(YarnConfiguration.NM_MEMORY_RESOURCE_CGROUPS_SWAPPINESS, 101); |
| cGroupsMemoryResourceHandler.bootstrap(conf); |
| Assert.fail("Values greater than 100 for swappiness" |
| + " should not be allowed."); |
| } |
| catch (ResourceHandlerException re) { |
| // do nothing |
| } |
| conf.setInt(YarnConfiguration.NM_MEMORY_RESOURCE_CGROUPS_SWAPPINESS, 60); |
| cGroupsMemoryResourceHandler.bootstrap(conf); |
| Assert.assertEquals("Swappiness value incorrect", 60, |
| cGroupsMemoryResourceHandler.getSwappiness()); |
| } |
| |
| @Test |
| public void testPreStart() throws Exception { |
| Configuration conf = new Configuration(); |
| conf.setBoolean(YarnConfiguration.NM_PMEM_CHECK_ENABLED, false); |
| conf.setBoolean(YarnConfiguration.NM_VMEM_CHECK_ENABLED, false); |
| cGroupsMemoryResourceHandler.bootstrap(conf); |
| String id = "container_01_01"; |
| String path = "test-path/" + id; |
| ContainerId mockContainerId = mock(ContainerId.class); |
| when(mockContainerId.toString()).thenReturn(id); |
| Container mockContainer = mock(Container.class); |
| when(mockContainer.getContainerId()).thenReturn(mockContainerId); |
| when(mockCGroupsHandler |
| .getPathForCGroupTasks(CGroupsHandler.CGroupController.MEMORY, id)) |
| .thenReturn(path); |
| int memory = 1024; |
| when(mockContainer.getResource()) |
| .thenReturn(Resource.newInstance(memory, 1)); |
| List<PrivilegedOperation> ret = |
| cGroupsMemoryResourceHandler.preStart(mockContainer); |
| verify(mockCGroupsHandler, times(1)) |
| .createCGroup(CGroupsHandler.CGroupController.MEMORY, id); |
| verify(mockCGroupsHandler, times(1)) |
| .updateCGroupParam(CGroupsHandler.CGroupController.MEMORY, id, |
| CGroupsHandler.CGROUP_PARAM_MEMORY_HARD_LIMIT_BYTES, |
| String.valueOf(memory) + "M"); |
| verify(mockCGroupsHandler, times(1)) |
| .updateCGroupParam(CGroupsHandler.CGroupController.MEMORY, id, |
| CGroupsHandler.CGROUP_PARAM_MEMORY_SOFT_LIMIT_BYTES, |
| String.valueOf((int) (memory * 0.9)) + "M"); |
| verify(mockCGroupsHandler, times(1)) |
| .updateCGroupParam(CGroupsHandler.CGroupController.MEMORY, id, |
| CGroupsHandler.CGROUP_PARAM_MEMORY_SWAPPINESS, String.valueOf(0)); |
| Assert.assertNotNull(ret); |
| Assert.assertEquals(1, ret.size()); |
| PrivilegedOperation op = ret.get(0); |
| Assert.assertEquals(PrivilegedOperation.OperationType.ADD_PID_TO_CGROUP, |
| op.getOperationType()); |
| List<String> args = op.getArguments(); |
| Assert.assertEquals(1, args.size()); |
| Assert.assertEquals(PrivilegedOperation.CGROUP_ARG_PREFIX + path, |
| args.get(0)); |
| } |
| |
| @Test |
| public void testReacquireContainer() throws Exception { |
| ContainerId containerIdMock = mock(ContainerId.class); |
| Assert.assertNull( |
| cGroupsMemoryResourceHandler.reacquireContainer(containerIdMock)); |
| } |
| |
| @Test |
| public void testPostComplete() throws Exception { |
| String id = "container_01_01"; |
| ContainerId mockContainerId = mock(ContainerId.class); |
| when(mockContainerId.toString()).thenReturn(id); |
| Assert |
| .assertNull(cGroupsMemoryResourceHandler.postComplete(mockContainerId)); |
| verify(mockCGroupsHandler, times(1)) |
| .deleteCGroup(CGroupsHandler.CGroupController.MEMORY, id); |
| } |
| |
| @Test |
| public void testTeardown() throws Exception { |
| Assert.assertNull(cGroupsMemoryResourceHandler.teardown()); |
| } |
| } |