TestMapReduceChildJVM.java
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* 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
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*
* 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.
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package org.apache.hadoop.mapreduce.v2.app.job.impl;
import java.util.ArrayList;
import java.util.Map;
import org.apache.hadoop.mapreduce.TaskType;
import org.junit.Assert;
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;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class TestMapReduceChildJVM {
private static final Logger LOG =
LoggerFactory.getLogger(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 " +
" -Xmx820m -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 -Dhadoop.root.logfile=syslog" +
" 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.launchCmdList.get(0));
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"));
}
@Test (timeout = 30000)
public void testReduceCommandLineWithSeparateShuffle() throws Exception {
final Configuration conf = new Configuration();
conf.setBoolean(MRJobConfig.REDUCE_SEPARATE_SHUFFLE_LOG, true);
testReduceCommandLine(conf);
}
@Test (timeout = 30000)
public void testReduceCommandLineWithSeparateCRLAShuffle() throws Exception {
final Configuration conf = new Configuration();
conf.setBoolean(MRJobConfig.REDUCE_SEPARATE_SHUFFLE_LOG, true);
conf.setLong(MRJobConfig.SHUFFLE_LOG_KB, 1L);
conf.setInt(MRJobConfig.SHUFFLE_LOG_BACKUPS, 3);
testReduceCommandLine(conf);
}
@Test (timeout = 30000)
public void testReduceCommandLine() throws Exception {
final Configuration conf = new Configuration();
testReduceCommandLine(conf);
}
private void testReduceCommandLine(Configuration conf)
throws Exception {
MyMRApp app = new MyMRApp(0, 1, true, this.getClass().getName(), true);
conf.setBoolean(MRConfig.MAPREDUCE_APP_SUBMISSION_CROSS_PLATFORM, true);
conf.setBoolean(MRJobConfig.MAPREDUCE_JVM_ADD_OPENS_JAVA_OPT, true);
Job job = app.submit(conf);
app.waitForState(job, JobState.SUCCEEDED);
app.verifyCompleted();
final long shuffleLogSize =
conf.getLong(MRJobConfig.SHUFFLE_LOG_KB, 0L) * 1024L;
final int shuffleBackups = conf.getInt(MRJobConfig.SHUFFLE_LOG_BACKUPS, 0);
final String appenderName = shuffleLogSize > 0L && shuffleBackups > 0
? "shuffleCRLA"
: "shuffleCLA";
Assert.assertEquals(
"[" + MRApps.crossPlatformify("JAVA_HOME") + "/bin/java" +
" -Djava.net.preferIPv4Stack=true" +
" -Dhadoop.metrics.log.level=WARN " +
" -Xmx820m <ADD_OPENS> -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 -Dhadoop.root.logfile=syslog" +
" -Dyarn.app.mapreduce.shuffle.logger=INFO," + appenderName +
" -Dyarn.app.mapreduce.shuffle.logfile=syslog.shuffle" +
" -Dyarn.app.mapreduce.shuffle.log.filesize=" + shuffleLogSize +
" -Dyarn.app.mapreduce.shuffle.log.backups=" + shuffleBackups +
" org.apache.hadoop.mapred.YarnChild 127.0.0.1" +
" 54321" +
" attempt_0_0000_r_000000_0" +
" 0" +
" 1><LOG_DIR>/stdout" +
" 2><LOG_DIR>/stderr ]", app.launchCmdList.get(0));
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"));
}
@Test (timeout = 30000)
public void testCommandLineWithLog4JConfig() 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);
String testLogPropertieFile = "test-log4j.properties";
String testLogPropertiePath = "../"+"test-log4j.properties";
conf.set(MRJobConfig.MAPREDUCE_JOB_LOG4J_PROPERTIES_FILE, testLogPropertiePath);
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 " +
" -Xmx820m -Djava.io.tmpdir=" + MRApps.crossPlatformify("PWD") + "/tmp" +
" -Dlog4j.configuration=" + testLogPropertieFile +
" -Dyarn.app.container.log.dir=<LOG_DIR>" +
" -Dyarn.app.container.log.filesize=0" +
" -Dhadoop.root.logger=INFO,CLA -Dhadoop.root.logfile=syslog" +
" 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.launchCmdList.get(0));
}
@Test
public void testAutoHeapSizes() throws Exception {
// Don't specify heap size or memory-mb
testAutoHeapSize(-1, -1, null);
// Don't specify heap size
testAutoHeapSize(512, 768, null);
testAutoHeapSize(100, 768, null);
testAutoHeapSize(512, 100, null);
// Specify heap size
testAutoHeapSize(512, 768, "-Xmx100m");
testAutoHeapSize(512, 768, "-Xmx500m");
// Specify heap size but not the memory
testAutoHeapSize(-1, -1, "-Xmx100m");
testAutoHeapSize(-1, -1, "-Xmx500m");
}
private void testAutoHeapSize(int mapMb, int redMb, String xmxArg)
throws Exception {
JobConf conf = new JobConf();
float heapRatio = conf.getFloat(MRJobConfig.HEAP_MEMORY_MB_RATIO,
MRJobConfig.DEFAULT_HEAP_MEMORY_MB_RATIO);
// Verify map and reduce java opts are not set by default
Assert.assertNull("Default map java opts!",
conf.get(MRJobConfig.MAP_JAVA_OPTS));
Assert.assertNull("Default reduce java opts!",
conf.get(MRJobConfig.REDUCE_JAVA_OPTS));
// Set the memory-mbs and java-opts
if (mapMb > 0) {
conf.setInt(MRJobConfig.MAP_MEMORY_MB, mapMb);
} else {
mapMb = conf.getMemoryRequired(TaskType.MAP);
}
if (redMb > 0) {
conf.setInt(MRJobConfig.REDUCE_MEMORY_MB, redMb);
} else {
redMb = conf.getMemoryRequired(TaskType.REDUCE);
}
if (xmxArg != null) {
conf.set(MRJobConfig.MAP_JAVA_OPTS, xmxArg);
conf.set(MRJobConfig.REDUCE_JAVA_OPTS, xmxArg);
}
// Submit job to let unspecified fields be picked up
MyMRApp app = new MyMRApp(1, 1, true, this.getClass().getName(), true);
Job job = app.submit(conf);
app.waitForState(job, JobState.SUCCEEDED);
app.verifyCompleted();
// Go through the tasks and verify the values are as expected
for (String cmd : app.launchCmdList) {
final boolean isMap = cmd.contains("_m_");
int heapMb;
if (xmxArg == null) {
heapMb = (int)(Math.ceil((isMap ? mapMb : redMb) * heapRatio));
} else {
final String javaOpts = conf.get(isMap
? MRJobConfig.MAP_JAVA_OPTS
: MRJobConfig.REDUCE_JAVA_OPTS);
heapMb = JobConf.parseMaximumHeapSizeMB(javaOpts);
}
Assert.assertEquals("Incorrect heapsize in the command opts",
heapMb, JobConf.parseMaximumHeapSizeMB(cmd));
}
}
private static final class MyMRApp extends MRApp {
private ArrayList<String> launchCmdList = new ArrayList<>();
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);
launchCmdList.add(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"));
// Try one using the mapreduce.task.env.var=value syntax
app = new MyMRApp(1, 0, true, this.getClass().getName(), true);
conf = new Configuration();
conf.set(JobConf.MAPRED_MAP_TASK_ENV + ".HADOOP_ROOT_LOGGER",
"DEBUG,console");
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("DEBUG,console",
app.cmdEnvironment.get("HADOOP_ROOT_LOGGER"));
}
}