| /** |
| * 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.nodelabels; |
| |
| import java.io.File; |
| import java.io.FileNotFoundException; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.net.MalformedURLException; |
| import java.net.URL; |
| import java.util.TimerTask; |
| |
| import org.apache.commons.io.IOUtils; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.FileContext; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.yarn.conf.YarnConfiguration; |
| import org.apache.hadoop.yarn.nodelabels.NodeLabelTestBase; |
| import org.junit.After; |
| import org.junit.AfterClass; |
| import org.junit.Assert; |
| import org.junit.Before; |
| import org.junit.BeforeClass; |
| import org.junit.Test; |
| |
| public class TestConfigurationNodeLabelsProvider extends NodeLabelTestBase { |
| |
| protected static File testRootDir = new File("target", |
| TestConfigurationNodeLabelsProvider.class.getName() + "-localDir") |
| .getAbsoluteFile(); |
| |
| final static File nodeLabelsConfigFile = new File(testRootDir, |
| "yarn-site.xml"); |
| |
| private static XMLPathClassLoader loader; |
| |
| private ConfigurationNodeLabelsProvider nodeLabelsProvider; |
| |
| private static ClassLoader classContextClassLoader; |
| |
| @BeforeClass |
| public static void create() { |
| classContextClassLoader = Thread.currentThread().getContextClassLoader(); |
| loader = |
| new XMLPathClassLoader( |
| TestConfigurationNodeLabelsProvider.class.getClassLoader()); |
| testRootDir.mkdirs(); |
| Thread.currentThread().setContextClassLoader(loader); |
| } |
| |
| @Before |
| public void setup() { |
| nodeLabelsProvider = new ConfigurationNodeLabelsProvider(); |
| } |
| |
| @After |
| public void tearDown() throws Exception { |
| if (nodeLabelsProvider != null) { |
| nodeLabelsProvider.close(); |
| nodeLabelsProvider.stop(); |
| } |
| } |
| |
| @AfterClass |
| public static void remove() throws Exception { |
| if (classContextClassLoader != null) { |
| // testcases will fail after testcases present in this class, as |
| // yarn-site.xml will be deleted |
| Thread.currentThread().setContextClassLoader(classContextClassLoader); |
| } |
| if (testRootDir.exists()) { |
| FileContext.getLocalFSFileContext() |
| .delete(new Path(testRootDir.getAbsolutePath()), true); |
| } |
| } |
| |
| @Test |
| public void testNodeLabelsFromConfig() throws IOException, |
| InterruptedException { |
| Configuration conf = new Configuration(); |
| modifyConf("A"); |
| nodeLabelsProvider.init(conf); |
| // test for ensuring labels are set during initialization of the class |
| nodeLabelsProvider.start(); |
| assertNLCollectionEquals(toNodeLabelSet("A"), |
| nodeLabelsProvider.getNodeLabels()); |
| |
| // test for valid Modification |
| TimerTask timerTask = nodeLabelsProvider.getTimerTask(); |
| modifyConf("X"); |
| timerTask.run(); |
| assertNLCollectionEquals(toNodeLabelSet("X"), |
| nodeLabelsProvider.getNodeLabels()); |
| } |
| |
| @Test |
| public void testConfigForNoTimer() throws Exception { |
| Configuration conf = new Configuration(); |
| modifyConf("A"); |
| conf.setLong(YarnConfiguration.NM_NODE_LABELS_PROVIDER_FETCH_INTERVAL_MS, |
| AbstractNodeLabelsProvider.DISABLE_NODE_LABELS_PROVIDER_FETCH_TIMER); |
| nodeLabelsProvider.init(conf); |
| nodeLabelsProvider.start(); |
| Assert |
| .assertNull( |
| "Timer is not expected to be created when interval is configured as -1", |
| nodeLabelsProvider.nodeLabelsScheduler); |
| // Ensure that even though timer is not run, node labels are fetched at least once so |
| // that NM registers/updates Labels with RM |
| assertNLCollectionEquals(toNodeLabelSet("A"), |
| nodeLabelsProvider.getNodeLabels()); |
| } |
| |
| @Test |
| public void testConfigTimer() throws Exception { |
| Configuration conf = new Configuration(); |
| modifyConf("A"); |
| conf.setLong(YarnConfiguration.NM_NODE_LABELS_PROVIDER_FETCH_INTERVAL_MS, |
| 1000); |
| nodeLabelsProvider.init(conf); |
| nodeLabelsProvider.start(); |
| // Ensure that even though timer is not run, node labels are fetched at |
| // least once so |
| // that NM registers/updates Labels with RM |
| assertNLCollectionEquals(toNodeLabelSet("A"), |
| nodeLabelsProvider.getNodeLabels()); |
| modifyConf("X"); |
| Thread.sleep(1500); |
| assertNLCollectionEquals(toNodeLabelSet("X"), |
| nodeLabelsProvider.getNodeLabels()); |
| |
| } |
| |
| private static void modifyConf(String nodeLabels) |
| throws FileNotFoundException, IOException { |
| Configuration conf = new Configuration(); |
| conf.set(YarnConfiguration.NM_PROVIDER_CONFIGURED_NODE_PARTITION, nodeLabels); |
| FileOutputStream confStream = new FileOutputStream(nodeLabelsConfigFile); |
| conf.writeXml(confStream); |
| IOUtils.closeQuietly(confStream); |
| } |
| |
| private static class XMLPathClassLoader extends ClassLoader { |
| public XMLPathClassLoader(ClassLoader wrapper) { |
| super(wrapper); |
| } |
| |
| public URL getResource(String name) { |
| if (name.equals(YarnConfiguration.YARN_SITE_CONFIGURATION_FILE)) { |
| try { |
| return nodeLabelsConfigFile.toURI().toURL(); |
| } catch (MalformedURLException e) { |
| e.printStackTrace(); |
| Assert.fail(); |
| } |
| } |
| return super.getResource(name); |
| } |
| } |
| } |