/**
* 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.mapreduce.v2.app.job.impl;
import java.util.Map;
import org.junit.Assert;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.mapred.JobConf;
import org.apache.hadoop.mapreduce.MRConfig;
import org.apache.hadoop.mapreduce.MRJobConfig;
import org.apache.hadoop.mapreduce.v2.api.records.JobState;
import org.apache.hadoop.mapreduce.v2.app.AppContext;
import org.apache.hadoop.mapreduce.v2.app.MRApp;
import org.apache.hadoop.mapreduce.v2.app.job.Job;
import org.apache.hadoop.mapreduce.v2.app.launcher.ContainerLauncher;
import org.apache.hadoop.mapreduce.v2.app.launcher.ContainerLauncherEvent;
import org.apache.hadoop.mapreduce.v2.app.launcher.ContainerRemoteLaunchEvent;
import org.apache.hadoop.mapreduce.v2.util.MRApps;
import org.apache.hadoop.yarn.api.records.ContainerLaunchContext;
import org.junit.Test;
public class TestMapReduceChildJVM {
private static final Log LOG = LogFactory.getLog(TestMapReduceChildJVM.class);
@Test (timeout = 30000)
public void testCommandLine() throws Exception {
MyMRApp app = new MyMRApp(1, 0, true, this.getClass().getName(), true);
Configuration conf = new Configuration();
conf.setBoolean(MRConfig.MAPREDUCE_APP_SUBMISSION_CROSS_PLATFORM, true);
Job job = app.submit(conf);
app.waitForState(job, JobState.SUCCEEDED);
app.verifyCompleted();
Assert.assertEquals(
"[" + MRApps.crossPlatformify("JAVA_HOME") + "/bin/java" +
" -Djava.net.preferIPv4Stack=true" +
" -Dhadoop.metrics.log.level=WARN" +
" -Xmx200m -Djava.io.tmpdir=" + MRApps.crossPlatformify("PWD") + "/tmp" +
" -Dlog4j.configuration=container-log4j.properties" +
" -Dyarn.app.container.log.dir=<LOG_DIR>" +
" -Dyarn.app.container.log.filesize=0" +
" -Dhadoop.root.logger=INFO,CLA" +
" org.apache.hadoop.mapred.YarnChild 127.0.0.1" +
" 54321" +
" attempt_0_0000_m_000000_0" +
" 0" +
" 1><LOG_DIR>/stdout" +
" 2><LOG_DIR>/stderr ]", app.myCommandLine);
Assert.assertTrue("HADOOP_ROOT_LOGGER not set for job",
app.cmdEnvironment.containsKey("HADOOP_ROOT_LOGGER"));
Assert.assertEquals("INFO,console",
app.cmdEnvironment.get("HADOOP_ROOT_LOGGER"));
Assert.assertTrue("HADOOP_CLIENT_OPTS not set for job",
app.cmdEnvironment.containsKey("HADOOP_CLIENT_OPTS"));
Assert.assertEquals("", app.cmdEnvironment.get("HADOOP_CLIENT_OPTS"));
}
private static final class MyMRApp extends MRApp {
private String myCommandLine;
private Map<String, String> cmdEnvironment;
public MyMRApp(int maps, int reduces, boolean autoComplete,
String testName, boolean cleanOnStart) {
super(maps, reduces, autoComplete, testName, cleanOnStart);
}
@Override
protected ContainerLauncher createContainerLauncher(AppContext context) {
return new MockContainerLauncher() {
@Override
public void handle(ContainerLauncherEvent event) {
if (event.getType() == EventType.CONTAINER_REMOTE_LAUNCH) {
ContainerRemoteLaunchEvent launchEvent = (ContainerRemoteLaunchEvent) event;
ContainerLaunchContext launchContext =
launchEvent.getContainerLaunchContext();
String cmdString = launchContext.getCommands().toString();
LOG.info("launchContext " + cmdString);
myCommandLine = cmdString;
cmdEnvironment = launchContext.getEnvironment();
}
super.handle(event);
}
};
}
}
@Test
public void testEnvironmentVariables() throws Exception {
MyMRApp app = new MyMRApp(1, 0, true, this.getClass().getName(), true);
Configuration conf = new Configuration();
conf.set(JobConf.MAPRED_MAP_TASK_ENV, "HADOOP_CLIENT_OPTS=test");
conf.setStrings(MRJobConfig.MAP_LOG_LEVEL, "WARN");
conf.setBoolean(MRConfig.MAPREDUCE_APP_SUBMISSION_CROSS_PLATFORM, false);
Job job = app.submit(conf);
app.waitForState(job, JobState.SUCCEEDED);
app.verifyCompleted();
Assert.assertTrue("HADOOP_ROOT_LOGGER not set for job",
app.cmdEnvironment.containsKey("HADOOP_ROOT_LOGGER"));
Assert.assertEquals("WARN,console",
app.cmdEnvironment.get("HADOOP_ROOT_LOGGER"));
Assert.assertTrue("HADOOP_CLIENT_OPTS not set for job",
app.cmdEnvironment.containsKey("HADOOP_CLIENT_OPTS"));
Assert.assertEquals("test", app.cmdEnvironment.get("HADOOP_CLIENT_OPTS"));
// Try one more.
app = new MyMRApp(1, 0, true, this.getClass().getName(), true);
conf = new Configuration();
conf.set(JobConf.MAPRED_MAP_TASK_ENV, "HADOOP_ROOT_LOGGER=trace");
job = app.submit(conf);
app.waitForState(job, JobState.SUCCEEDED);
app.verifyCompleted();
Assert.assertTrue("HADOOP_ROOT_LOGGER not set for job",
app.cmdEnvironment.containsKey("HADOOP_ROOT_LOGGER"));
Assert.assertEquals("trace",
app.cmdEnvironment.get("HADOOP_ROOT_LOGGER"));
}
}