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YARN-4577. Enable aux services to have their own custom classpath/jar file (Xuan Gong via sale)

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This commit is contained in:
Sangjin Lee 2016-05-12 10:10:01 -07:00
parent 3f2816ab5a
commit 0bbe01f8d5
6 changed files with 385 additions and 43 deletions
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26
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/util/JarFinder.java
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@ -14,7 +14,7 @@
package org.apache.hadoop.util;
import com.google.common.base.Preconditions;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
@ -173,4 +173,28 @@ else if ("file".equals(url.getProtocol())) {
}
return null;
}
public static File makeClassLoaderTestJar(Class<?> target, File rootDir,
String jarName, int buffSize, String... clsNames) throws IOException {
File jarFile = new File(rootDir, jarName);
JarOutputStream jstream =
new JarOutputStream(new FileOutputStream(jarFile));
for (String clsName: clsNames) {
String name = clsName.replace('.', '/') + ".class";
InputStream entryInputStream = target.getResourceAsStream(
"/" + name);
ZipEntry entry = new ZipEntry(name);
jstream.putNextEntry(entry);
BufferedInputStream bufInputStream = new BufferedInputStream(
entryInputStream, buffSize);
int count;
byte[] data = new byte[buffSize];
while ((count = bufInputStream.read(data, 0, buffSize)) != -1) {
jstream.write(data, 0, count);
}
jstream.closeEntry();
}
jstream.close();
return jarFile;
}
}

29
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/util/TestRunJar.java
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@ -23,11 +23,9 @@
import static org.mockito.Mockito.spy;
import static org.mockito.Mockito.when;
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.jar.JarOutputStream;
import java.util.regex.Pattern;
import java.util.zip.ZipEntry;
@ -156,7 +154,8 @@ public void testClientClassLoader() throws Throwable {
when(runJar.getSystemClasses()).thenReturn(systemClasses);
// create the test jar
File testJar = makeClassLoaderTestJar(mainCls, thirdCls);
File testJar = JarFinder.makeClassLoaderTestJar(this.getClass(),
TEST_ROOT_DIR, TEST_JAR_2_NAME, BUFF_SIZE, mainCls, thirdCls);
// form the args
String[] args = new String[3];
args[0] = testJar.getAbsolutePath();
@ -166,28 +165,4 @@ public void testClientClassLoader() throws Throwable {
runJar.run(args);
// it should not throw an exception
}
private File makeClassLoaderTestJar(String... clsNames) throws IOException {
File jarFile = new File(TEST_ROOT_DIR, TEST_JAR_2_NAME);
JarOutputStream jstream =
new JarOutputStream(new FileOutputStream(jarFile));
for (String clsName: clsNames) {
String name = clsName.replace('.', '/') + ".class";
InputStream entryInputStream = this.getClass().getResourceAsStream(
"/" + name);
ZipEntry entry = new ZipEntry(name);
jstream.putNextEntry(entry);
BufferedInputStream bufInputStream = new BufferedInputStream(
entryInputStream, BUFF_SIZE);
int count;
byte[] data = new byte[BUFF_SIZE];
while ((count = bufInputStream.read(data, 0, BUFF_SIZE)) != -1) {
jstream.write(data, 0, count);
}
jstream.closeEntry();
}
jstream.close();
return jarFile;
}
}

6
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/conf/YarnConfiguration.java
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@ -1456,6 +1456,12 @@ public static boolean isAclEnabled(Configuration conf) {
public static final String NM_AUX_SERVICE_FMT =
NM_PREFIX + "aux-services.%s.class";
public static final String NM_AUX_SERVICES_CLASSPATH =
NM_AUX_SERVICES + ".%s.classpath";
public static final String NM_AUX_SERVICES_SYSTEM_CLASSES =
NM_AUX_SERVICES + ".%s.system-classes";
public static final String NM_USER_HOME_DIR =
NM_PREFIX + "user-home-dir";

29
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/AuxServices.java
View File

@ -118,17 +118,36 @@ public void serviceInit(Configuration conf) throws Exception {
YarnConfiguration.NM_AUX_SERVICES +" is invalid." +
"The valid service name should only contain a-zA-Z0-9_ " +
"and can not start with numbers");
String classKey = String.format(
YarnConfiguration.NM_AUX_SERVICE_FMT, sName);
String className = conf.get(classKey);
final String appClassPath = conf.get(String.format(
YarnConfiguration.NM_AUX_SERVICES_CLASSPATH, sName));
AuxiliaryService s = null;
boolean useCustomerClassLoader = appClassPath != null
&& !appClassPath.isEmpty() && className != null
&& !className.isEmpty();
if (useCustomerClassLoader) {
s = AuxiliaryServiceWithCustomClassLoader.getInstance(
conf, className, appClassPath);
LOG.info("The aux service:" + sName
+ " are using the custom classloader");
} else {
Class<? extends AuxiliaryService> sClass = conf.getClass(
String.format(YarnConfiguration.NM_AUX_SERVICE_FMT, sName), null,
AuxiliaryService.class);
if (null == sClass) {
classKey, null, AuxiliaryService.class);
if (sClass == null) {
throw new RuntimeException("No class defined for " + sName);
}
AuxiliaryService s = ReflectionUtils.newInstance(sClass, conf);
s = ReflectionUtils.newInstance(sClass, conf);
}
if (s == null) {
throw new RuntimeException("No object created for " + sName);
}
// TODO better use s.getName()?
if(!sName.equals(s.getName())) {
LOG.warn("The Auxilurary Service named '"+sName+"' in the "
+"configuration is for "+sClass+" which has "
+"configuration is for "+s.getClass()+" which has "
+"a name of '"+s.getName()+"'. Because these are "
+"not the same tools trying to send ServiceData and read "
+"Service Meta Data may have issues unless the refer to "

201
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/AuxiliaryServiceWithCustomClassLoader.java Normal file
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@ -0,0 +1,201 @@
/**
* 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;
import java.io.IOException;
import java.net.MalformedURLException;
import java.nio.ByteBuffer;
import java.security.AccessController;
import java.security.PrivilegedActionException;
import java.security.PrivilegedExceptionAction;
import java.util.Arrays;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.util.ApplicationClassLoader;
import org.apache.hadoop.util.ReflectionUtils;
import org.apache.hadoop.yarn.conf.YarnConfiguration;
import org.apache.hadoop.yarn.server.api.ApplicationInitializationContext;
import org.apache.hadoop.yarn.server.api.ApplicationTerminationContext;
import org.apache.hadoop.yarn.server.api.AuxiliaryService;
import org.apache.hadoop.yarn.server.api.ContainerInitializationContext;
import org.apache.hadoop.yarn.server.api.ContainerTerminationContext;
final class AuxiliaryServiceWithCustomClassLoader extends AuxiliaryService {
private final AuxiliaryService wrapped;
private final ClassLoader customClassLoader;
private AuxiliaryServiceWithCustomClassLoader(String name,
AuxiliaryService wrapped, ClassLoader customClassLoader) {
super(name);
this.wrapped = wrapped;
this.customClassLoader = customClassLoader;
}
@Override
protected void serviceInit(Configuration conf) throws Exception {
// We pass a shared configuration as part of serviceInit call.
// To avoid the scenario that we could get a ClassNotFoundException
// when we use customClassLoader to load the class, we create a copy
// of the configuration.
Configuration config = new Configuration(conf);
// reset the service configuration
setConfig(config);
config.setClassLoader(customClassLoader);
ClassLoader original = Thread.currentThread().getContextClassLoader();
Thread.currentThread().setContextClassLoader(customClassLoader);
try {
wrapped.init(config);
} finally {
Thread.currentThread().setContextClassLoader(original);
}
}
@Override
protected void serviceStart() throws Exception {
ClassLoader original = Thread.currentThread().getContextClassLoader();
Thread.currentThread().setContextClassLoader(customClassLoader);
try {
wrapped.start();
} finally {
Thread.currentThread().setContextClassLoader(original);
}
}
@Override
protected void serviceStop() throws Exception {
ClassLoader original = Thread.currentThread().getContextClassLoader();
Thread.currentThread().setContextClassLoader(customClassLoader);
try {
wrapped.stop();
} finally {
Thread.currentThread().setContextClassLoader(original);
}
}
@Override
public void initializeApplication(
ApplicationInitializationContext initAppContext) {
ClassLoader original = Thread.currentThread().getContextClassLoader();
Thread.currentThread().setContextClassLoader(customClassLoader);
try {
wrapped.initializeApplication(initAppContext);
} finally {
Thread.currentThread().setContextClassLoader(original);
}
}
@Override
public void stopApplication(ApplicationTerminationContext stopAppContext) {
ClassLoader original = Thread.currentThread().getContextClassLoader();
Thread.currentThread().setContextClassLoader(customClassLoader);
try {
wrapped.stopApplication(stopAppContext);
} finally {
Thread.currentThread().setContextClassLoader(original);
}
}
@Override
public ByteBuffer getMetaData() {
ClassLoader original = Thread.currentThread().getContextClassLoader();
Thread.currentThread().setContextClassLoader(customClassLoader);
try {
return wrapped.getMetaData();
} finally {
Thread.currentThread().setContextClassLoader(original);
}
}
@Override
public void initializeContainer(ContainerInitializationContext
initContainerContext) {
ClassLoader original = Thread.currentThread().getContextClassLoader();
Thread.currentThread().setContextClassLoader(customClassLoader);
try {
wrapped.initializeContainer(initContainerContext);
} finally {
Thread.currentThread().setContextClassLoader(original);
}
}
@Override
public void stopContainer(ContainerTerminationContext stopContainerContext) {
ClassLoader original = Thread.currentThread().getContextClassLoader();
Thread.currentThread().setContextClassLoader(customClassLoader);
try {
wrapped.stopContainer(stopContainerContext);
} finally {
Thread.currentThread().setContextClassLoader(original);
}
}
@Override
public void setRecoveryPath(Path recoveryPath) {
ClassLoader original = Thread.currentThread().getContextClassLoader();
Thread.currentThread().setContextClassLoader(customClassLoader);
try {
wrapped.setRecoveryPath(recoveryPath);
} finally {
Thread.currentThread().setContextClassLoader(original);
}
}
public static AuxiliaryServiceWithCustomClassLoader getInstance(
Configuration conf, String className, String appClassPath)
throws IOException, ClassNotFoundException {
String[] systemClasses = conf.getTrimmedStrings(String.format(
YarnConfiguration.NM_AUX_SERVICES_SYSTEM_CLASSES,
className));
ClassLoader customClassLoader = createAuxServiceClassLoader(
appClassPath, systemClasses);
Class<?> clazz = Class.forName(className, true,
customClassLoader);
Class<? extends AuxiliaryService> sClass = clazz.asSubclass(
AuxiliaryService.class);
AuxiliaryService wrapped = ReflectionUtils.newInstance(sClass, conf);
return new AuxiliaryServiceWithCustomClassLoader(
className + " with custom class loader", wrapped,
customClassLoader);
}
private static ClassLoader createAuxServiceClassLoader(
final String appClasspath, final String[] systemClasses)
throws IOException {
try {
return AccessController.doPrivileged(
new PrivilegedExceptionAction<ClassLoader>() {
@Override
public ClassLoader run() throws MalformedURLException {
return new ApplicationClassLoader(appClasspath,
AuxServices.class.getClassLoader(),
Arrays.asList(systemClasses));
}
}
);
} catch (PrivilegedActionException e) {
Throwable t = e.getCause();
if (t instanceof MalformedURLException) {
throw (MalformedURLException) t;
}
throw new IOException(e);
}
}
}

119
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/test/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/TestAuxServices.java
View File

@ -27,13 +27,21 @@
import static org.junit.Assert.fail;
import static org.mockito.Mockito.mock;
import com.google.common.base.Charsets;
import com.google.common.collect.Sets;
import java.io.File;
import java.io.IOException;
import java.net.URL;
import java.net.URLClassLoader;
import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.conf.Configuration;
@ -42,6 +50,10 @@
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.fs.permission.FsPermission;
import org.apache.hadoop.service.Service;
import org.apache.hadoop.test.GenericTestUtils;
import org.apache.hadoop.util.ApplicationClassLoader;
import org.apache.hadoop.util.JarFinder;
import org.apache.hadoop.util.StringUtils;
import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
import org.apache.hadoop.yarn.api.records.ApplicationId;
import org.apache.hadoop.yarn.api.records.ContainerId;
@ -150,6 +162,111 @@ public ServiceB() {
}
}
// Override getMetaData() method to return current
// class path. This class would be used for
// testCustomizedAuxServiceClassPath.
static class ServiceC extends LightService {
public ServiceC() {
super("C", 'C', 66, ByteBuffer.wrap("C".getBytes()));
}
@Override
public ByteBuffer getMetaData() {
ClassLoader loader = Thread.currentThread().getContextClassLoader();
URL[] urls = ((URLClassLoader)loader).getURLs();
List<String> urlString = new ArrayList<String>();
for (URL url : urls) {
urlString.add(url.toString());
}
String joinedString = StringUtils.join(",", urlString);
return ByteBuffer.wrap(joinedString.getBytes());
}
}
// To verify whether we could load class from customized class path.
// We would use ServiceC in this test. Also create a separate jar file
// including ServiceC class, and add this jar to customized directory.
// By setting some proper configurations, we should load ServiceC class
// from customized class path.
@Test (timeout = 15000)
public void testCustomizedAuxServiceClassPath() throws Exception {
// verify that we can load AuxService Class from default Class path
Configuration conf = new YarnConfiguration();
conf.setStrings(YarnConfiguration.NM_AUX_SERVICES,
new String[] {"ServiceC"});
conf.setClass(String.format(YarnConfiguration.NM_AUX_SERVICE_FMT,
"ServiceC"), ServiceC.class, Service.class);
@SuppressWarnings("resource")
AuxServices aux = new AuxServices();
aux.init(conf);
aux.start();
Map<String, ByteBuffer> meta = aux.getMetaData();
String auxName = "";
Set<String> defaultAuxClassPath = null;
Assert.assertTrue(meta.size() == 1);
for(Entry<String, ByteBuffer> i : meta.entrySet()) {
auxName = i.getKey();
String auxClassPath = Charsets.UTF_8.decode(i.getValue()).toString();
defaultAuxClassPath = new HashSet<String>(Arrays.asList(StringUtils
.getTrimmedStrings(auxClassPath)));
}
Assert.assertTrue(auxName.equals("ServiceC"));
aux.serviceStop();
// create a new jar file, and configure it as customized class path
// for this AuxService, and make sure that we could load the class
// from this configured customized class path
File rootDir = GenericTestUtils.getTestDir(getClass()
.getSimpleName());
if (!rootDir.exists()) {
rootDir.mkdirs();
}
File testJar = null;
try {
testJar = JarFinder.makeClassLoaderTestJar(this.getClass(), rootDir,
"test-runjar.jar", 2048, ServiceC.class.getName());
conf = new YarnConfiguration();
conf.setStrings(YarnConfiguration.NM_AUX_SERVICES,
new String[] {"ServiceC"});
conf.set(String.format(YarnConfiguration.NM_AUX_SERVICE_FMT, "ServiceC"),
ServiceC.class.getName());
conf.set(String.format(
YarnConfiguration.NM_AUX_SERVICES_CLASSPATH, "ServiceC"),
testJar.getAbsolutePath());
// remove "-org.apache.hadoop." from system classes
String systemClasses = "-org.apache.hadoop." + "," +
ApplicationClassLoader.SYSTEM_CLASSES_DEFAULT;
conf.set(String.format(
YarnConfiguration.NM_AUX_SERVICES_SYSTEM_CLASSES,
"ServiceC"), systemClasses);
aux = new AuxServices();
aux.init(conf);
aux.start();
meta = aux.getMetaData();
Assert.assertTrue(meta.size() == 1);
Set<String> customizedAuxClassPath = null;
for(Entry<String, ByteBuffer> i : meta.entrySet()) {
Assert.assertTrue(auxName.equals(i.getKey()));
String classPath = Charsets.UTF_8.decode(i.getValue()).toString();
customizedAuxClassPath = new HashSet<String>(Arrays.asList(StringUtils
.getTrimmedStrings(classPath)));
Assert.assertTrue(classPath.contains(testJar.getName()));
}
aux.stop();
// Verify that we do not have any overlap between customized class path
// and the default class path.
Set<String> mutalClassPath = Sets.intersection(defaultAuxClassPath,
customizedAuxClassPath);
Assert.assertTrue(mutalClassPath.isEmpty());
} finally {
if (testJar != null) {
testJar.delete();
rootDir.delete();
}
}
}
@Test
public void testAuxEventDispatch() {
Configuration conf = new Configuration();