/**
* 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.applications.unmanagedamlauncher;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.net.URL;
import junit.framework.Assert;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.yarn.conf.YarnConfiguration;
import org.apache.hadoop.yarn.server.MiniYARNCluster;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
public class TestUnmanagedAMLauncher {
private static final Log LOG = LogFactory
.getLog(TestUnmanagedAMLauncher.class);
protected static MiniYARNCluster yarnCluster = null;
protected static Configuration conf = new Configuration();
@BeforeClass
public static void setup() throws InterruptedException, IOException {
LOG.info("Starting up YARN cluster");
conf.setInt(YarnConfiguration.RM_SCHEDULER_MINIMUM_ALLOCATION_MB, 128);
if (yarnCluster == null) {
yarnCluster = new MiniYARNCluster(
TestUnmanagedAMLauncher.class.getName(), 1, 1, 1);
yarnCluster.init(conf);
yarnCluster.start();
URL url = Thread.currentThread().getContextClassLoader()
.getResource("yarn-site.xml");
if (url == null) {
throw new RuntimeException(
"Could not find 'yarn-site.xml' dummy file in classpath");
}
OutputStream os = new FileOutputStream(new File(url.getPath()));
yarnCluster.getConfig().writeXml(os);
os.close();
}
try {
Thread.sleep(2000);
} catch (InterruptedException e) {
LOG.info("setup thread sleep interrupted. message=" + e.getMessage());
}
}
@AfterClass
public static void tearDown() throws IOException {
if (yarnCluster != null) {
yarnCluster.stop();
yarnCluster = null;
}
}
private static String getTestRuntimeClasspath() {
LOG.info("Trying to generate classpath for app master from current thread's classpath");
String envClassPath = "";
String cp = System.getProperty("java.class.path");
if (cp != null) {
envClassPath += cp.trim() + File.pathSeparator;
}
// yarn-site.xml at this location contains proper config for mini cluster
ClassLoader thisClassLoader = Thread.currentThread()
.getContextClassLoader();
URL url = thisClassLoader.getResource("yarn-site.xml");
envClassPath += new File(url.getFile()).getParent();
return envClassPath;
}
@Test
public void testDSShell() throws Exception {
String classpath = getTestRuntimeClasspath();
String javaHome = System.getenv("JAVA_HOME");
if (javaHome == null) {
LOG.fatal("JAVA_HOME not defined. Test not running.");
return;
}
// start dist-shell with 0 containers because container launch will fail if
// there are no dist cache resources.
String[] args = {
"--classpath",
classpath,
"--queue",
"default",
"--cmd",
javaHome
+ "/bin/java -Xmx512m "
+ "org.apache.hadoop.yarn.applications.distributedshell.ApplicationMaster "
+ "--container_memory 128 --num_containers 0 --priority 0 --shell_command ls" };
LOG.info("Initializing Launcher");
UnmanagedAMLauncher launcher = new UnmanagedAMLauncher(new Configuration(
yarnCluster.getConfig()));
boolean initSuccess = launcher.init(args);
Assert.assertTrue(initSuccess);
LOG.info("Running Launcher");
boolean result = launcher.run();
LOG.info("Launcher run completed. Result=" + result);
Assert.assertTrue(result);
}
}