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YARN-3626. On Windows localized resources are not moved to the front of the classpath when they should be. Contributed by Craig Welch

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This commit is contained in:
Xuan 2015-05-13 13:10:53 -07:00
parent 341a476812
commit 0f95921447
5 changed files with 181 additions and 3 deletions
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5
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-common/src/main/java/org/apache/hadoop/mapreduce/v2/util/MRApps.java
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@ -241,6 +241,11 @@ public static void setClasspath(Map<String, String> environment,
boolean userClassesTakesPrecedence =
conf.getBoolean(MRJobConfig.MAPREDUCE_JOB_USER_CLASSPATH_FIRST, false);
if (userClassesTakesPrecedence) {
conf.set(YarnConfiguration.YARN_APPLICATION_CLASSPATH_PREPEND_DISTCACHE,
"true");
}
String classpathEnvVar =
conf.getBoolean(MRJobConfig.MAPREDUCE_JOB_CLASSLOADER, false)
? Environment.APP_CLASSPATH.name() : Environment.CLASSPATH.name();

3
hadoop-yarn-project/CHANGES.txt
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@ -480,6 +480,9 @@ Release 2.7.1 - UNRELEASED
YARN-3493. RM fails to come up with error "Failed to load/recover state"
when mem settings are changed. (Jian He via wangda)
YARN-3626. On Windows localized resources are not moved to the front
of the classpath when they should be. (Craig Welch via xgong)
Release 2.7.0 - 2015-04-20
INCOMPATIBLE CHANGES

10
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/conf/YarnConfiguration.java
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@ -1248,6 +1248,16 @@ private static void addDeprecatedKeys() {
public static final String YARN_APPLICATION_CLASSPATH = YARN_PREFIX
+ "application.classpath";
/**
* Whether or not entries from the distributed cache should be preferred over
* the rest of the YARN CLASSPATH
*/
public static final String YARN_APPLICATION_CLASSPATH_PREPEND_DISTCACHE =
YARN_PREFIX + "application.classpath.prepend.distcache";
public static final boolean
DEFAULT_YARN_APPLICATION_CLASSPATH_PREPEND_DISTCACHE = false;
/**
* Default platform-agnostic CLASSPATH for YARN applications. A
* comma-separated list of CLASSPATH entries. The parameter expansion marker

35
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/launcher/ContainerLaunch.java
View File

@ -726,8 +726,28 @@ public void sanitizeEnv(Map<String, String> environment, Path pwd,
if (Shell.WINDOWS) {
String inputClassPath = environment.get(Environment.CLASSPATH.name());
if (inputClassPath != null && !inputClassPath.isEmpty()) {
StringBuilder newClassPath = new StringBuilder(inputClassPath);
//On non-windows, localized resources
//from distcache are available via the classpath as they were placed
//there but on windows they are not available when the classpath
//jar is created and so they "are lost" and have to be explicitly
//added to the classpath instead. This also means that their position
//is lost relative to other non-distcache classpath entries which will
//break things like mapreduce.job.user.classpath.first.
boolean preferLocalizedJars = conf.getBoolean(
YarnConfiguration.YARN_APPLICATION_CLASSPATH_PREPEND_DISTCACHE,
YarnConfiguration.DEFAULT_YARN_APPLICATION_CLASSPATH_PREPEND_DISTCACHE
);
boolean needsSeparator = false;
StringBuilder newClassPath = new StringBuilder();
if (!preferLocalizedJars) {
newClassPath.append(inputClassPath);
needsSeparator = true;
}
// Localized resources do not exist at the desired paths yet, because the
// container launch script has not run to create symlinks yet. This
@ -741,7 +761,12 @@ public void sanitizeEnv(Map<String, String> environment, Path pwd,
for (String linkName : entry.getValue()) {
// Append resource.
newClassPath.append(File.pathSeparator).append(pwd.toString())
if (needsSeparator) {
newClassPath.append(File.pathSeparator);
} else {
needsSeparator = true;
}
newClassPath.append(pwd.toString())
.append(Path.SEPARATOR).append(linkName);
// FileUtil.createJarWithClassPath must use File.toURI to convert
@ -758,6 +783,12 @@ public void sanitizeEnv(Map<String, String> environment, Path pwd,
}
}
}
if (preferLocalizedJars) {
if (needsSeparator) {
newClassPath.append(File.pathSeparator);
}
newClassPath.append(inputClassPath);
}
// When the container launches, it takes the parent process's environment
// and then adds/overwrites with the entries from the container launch

129
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/test/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/launcher/TestContainerLaunch.java
View File

@ -39,6 +39,9 @@
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.StringTokenizer;
import java.util.jar.JarFile;
import java.util.jar.Manifest;
import org.apache.commons.codec.binary.Base64;
import org.apache.hadoop.conf.Configuration;
@ -65,6 +68,7 @@
import org.apache.hadoop.yarn.api.records.LocalResource;
import org.apache.hadoop.yarn.api.records.LocalResourceType;
import org.apache.hadoop.yarn.api.records.LocalResourceVisibility;
import org.apache.hadoop.yarn.api.records.NodeId;
import org.apache.hadoop.yarn.api.records.Priority;
import org.apache.hadoop.yarn.api.records.Resource;
import org.apache.hadoop.yarn.api.records.Token;
@ -78,12 +82,18 @@
import org.apache.hadoop.yarn.server.nodemanager.ContainerExecutor;
import org.apache.hadoop.yarn.server.nodemanager.ContainerExecutor.ExitCode;
import org.apache.hadoop.yarn.server.nodemanager.DefaultContainerExecutor;
import org.apache.hadoop.yarn.server.nodemanager.Context;
import org.apache.hadoop.yarn.server.nodemanager.NodeManager.NMContext;
import org.apache.hadoop.yarn.server.nodemanager.containermanager.BaseContainerManagerTest;
import org.apache.hadoop.yarn.server.nodemanager.containermanager.container.Container;
import org.apache.hadoop.yarn.server.nodemanager.containermanager.container.ContainerEventType;
import org.apache.hadoop.yarn.server.nodemanager.containermanager.container.ContainerExitEvent;
import org.apache.hadoop.yarn.server.nodemanager.containermanager.launcher.ContainerLaunch.ShellScriptBuilder;
import org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.ContainerLocalizer;
import org.apache.hadoop.yarn.server.nodemanager.security.NMContainerTokenSecretManager;
import org.apache.hadoop.yarn.server.nodemanager.security.NMTokenSecretManagerInNM;
import org.apache.hadoop.yarn.server.security.ApplicationACLsManager;
import org.apache.hadoop.yarn.server.nodemanager.recovery.NMNullStateStoreService;
import org.apache.hadoop.yarn.server.utils.BuilderUtils;
import org.apache.hadoop.yarn.util.Apps;
import org.apache.hadoop.yarn.util.AuxiliaryServiceHelper;
@ -97,6 +107,17 @@
public class TestContainerLaunch extends BaseContainerManagerTest {
protected Context distContext = new NMContext(new NMContainerTokenSecretManager(
conf), new NMTokenSecretManagerInNM(), null,
new ApplicationACLsManager(conf), new NMNullStateStoreService()) {
public int getHttpPort() {
return HTTP_PORT;
};
public NodeId getNodeId() {
return NodeId.newInstance("ahost", 1234);
};
};
public TestContainerLaunch() throws UnsupportedFileSystemException {
super();
}
@ -371,6 +392,114 @@ public void testContainerLaunchStdoutAndStderrDiagnostics() throws IOException {
}
}
@Test
public void testPrependDistcache() throws Exception {
// Test is only relevant on Windows
Assume.assumeTrue(Shell.WINDOWS);
ContainerLaunchContext containerLaunchContext =
recordFactory.newRecordInstance(ContainerLaunchContext.class);
ApplicationId appId = ApplicationId.newInstance(0, 0);
ApplicationAttemptId appAttemptId =
ApplicationAttemptId.newInstance(appId, 1);
ContainerId cId = ContainerId.newContainerId(appAttemptId, 0);
Map<String, String> userSetEnv = new HashMap<String, String>();
userSetEnv.put(Environment.CONTAINER_ID.name(), "user_set_container_id");
userSetEnv.put(Environment.NM_HOST.name(), "user_set_NM_HOST");
userSetEnv.put(Environment.NM_PORT.name(), "user_set_NM_PORT");
userSetEnv.put(Environment.NM_HTTP_PORT.name(), "user_set_NM_HTTP_PORT");
userSetEnv.put(Environment.LOCAL_DIRS.name(), "user_set_LOCAL_DIR");
userSetEnv.put(Environment.USER.key(), "user_set_" +
Environment.USER.key());
userSetEnv.put(Environment.LOGNAME.name(), "user_set_LOGNAME");
userSetEnv.put(Environment.PWD.name(), "user_set_PWD");
userSetEnv.put(Environment.HOME.name(), "user_set_HOME");
userSetEnv.put(Environment.CLASSPATH.name(), "SYSTEM_CLPATH");
containerLaunchContext.setEnvironment(userSetEnv);
Container container = mock(Container.class);
when(container.getContainerId()).thenReturn(cId);
when(container.getLaunchContext()).thenReturn(containerLaunchContext);
when(container.getLocalizedResources()).thenReturn(null);
Dispatcher dispatcher = mock(Dispatcher.class);
EventHandler eventHandler = new EventHandler() {
public void handle(Event event) {
Assert.assertTrue(event instanceof ContainerExitEvent);
ContainerExitEvent exitEvent = (ContainerExitEvent) event;
Assert.assertEquals(ContainerEventType.CONTAINER_EXITED_WITH_FAILURE,
exitEvent.getType());
}
};
when(dispatcher.getEventHandler()).thenReturn(eventHandler);
Configuration conf = new Configuration();
ContainerLaunch launch = new ContainerLaunch(distContext, conf,
dispatcher, exec, null, container, dirsHandler, containerManager);
String testDir = System.getProperty("test.build.data",
"target/test-dir");
Path pwd = new Path(testDir);
List<Path> appDirs = new ArrayList<Path>();
List<String> containerLogs = new ArrayList<String>();
Map<Path, List<String>> resources = new HashMap<Path, List<String>>();
Path userjar = new Path("user.jar");
List<String> lpaths = new ArrayList<String>();
lpaths.add("userjarlink.jar");
resources.put(userjar, lpaths);
Path nmp = new Path(testDir);
launch.sanitizeEnv(
userSetEnv, pwd, appDirs, containerLogs, resources, nmp);
List<String> result =
getJarManifestClasspath(userSetEnv.get(Environment.CLASSPATH.name()));
Assert.assertTrue(result.size() > 1);
Assert.assertTrue(
result.get(result.size() - 1).endsWith("userjarlink.jar"));
//Now move userjar to the front
cId = ContainerId.newContainerId(appAttemptId, 1);
when(container.getContainerId()).thenReturn(cId);
conf.set(YarnConfiguration.YARN_APPLICATION_CLASSPATH_PREPEND_DISTCACHE,
"true");
launch = new ContainerLaunch(distContext, conf,
dispatcher, exec, null, container, dirsHandler, containerManager);
launch.sanitizeEnv(
userSetEnv, pwd, appDirs, containerLogs, resources, nmp);
result =
getJarManifestClasspath(userSetEnv.get(Environment.CLASSPATH.name()));
Assert.assertTrue(result.size() > 1);
Assert.assertTrue(
result.get(0).endsWith("userjarlink.jar"));
}
private static List<String> getJarManifestClasspath(String path)
throws Exception {
List<String> classpath = new ArrayList<String>();
JarFile jarFile = new JarFile(path);
Manifest manifest = jarFile.getManifest();
String cps = manifest.getMainAttributes().getValue("Class-Path");
StringTokenizer cptok = new StringTokenizer(cps);
while (cptok.hasMoreTokens()) {
String cpentry = cptok.nextToken();
classpath.add(cpentry);
}
return classpath;
}
/**
* See if environment variable is forwarded using sanitizeEnv.
* @throws Exception