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MAPREDUCE-2766. Fixed NM to set secure permissions for files and directories in distributed-cache. Contributed by Hitesh Shah.

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git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1195340 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Vinod Kumar Vavilapalli 2011-10-31 05:51:33 +00:00
parent 85fce9017c
commit 5f9e67e226
5 changed files with 234 additions and 15 deletions
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3
hadoop-mapreduce-project/CHANGES.txt
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@ -1868,6 +1868,9 @@ Release 0.23.0 - Unreleased
MAPREDUCE-3313. Fixed initialization of ClusterMetrics which was failing
TestResourceTrackerService sometimes. (Hitesh Shah via vinodkv)
MAPREDUCE-2766. Fixed NM to set secure permissions for files and directories
in distributed-cache. (Hitesh Shah via vinodkv)
Release 0.22.0 - Unreleased
INCOMPATIBLE CHANGES

57
hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/localizer/FSDownload.java
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@ -40,6 +40,7 @@
import org.apache.hadoop.fs.permission.FsPermission;
import org.apache.hadoop.util.RunJar;
import org.apache.hadoop.yarn.api.records.LocalResource;
import org.apache.hadoop.yarn.api.records.LocalResourceVisibility;
import org.apache.hadoop.yarn.util.ConverterUtils;
/**
@ -56,7 +57,13 @@ public class FSDownload implements Callable<Path> {
private Configuration conf;
private LocalResource resource;
private LocalDirAllocator dirs;
private FsPermission cachePerms = new FsPermission((short) 0755);
private static final FsPermission cachePerms = new FsPermission(
(short) 0755);
static final FsPermission PUBLIC_FILE_PERMS = new FsPermission((short) 0555);
static final FsPermission PRIVATE_FILE_PERMS = new FsPermission(
(short) 0500);
static final FsPermission PUBLIC_DIR_PERMS = new FsPermission((short) 0755);
static final FsPermission PRIVATE_DIR_PERMS = new FsPermission((short) 0700);
FSDownload(FileContext files, UserGroupInformation ugi, Configuration conf,
LocalDirAllocator dirs, LocalResource resource, Random rand) {
@ -150,6 +157,7 @@ public Path run() throws Exception {
};
});
unpack(new File(dTmp.toUri()), new File(dFinal.toUri()));
changePermissions(dFinal.getFileSystem(conf), dFinal);
files.rename(dst_work, dst, Rename.OVERWRITE);
} catch (Exception e) {
try { files.delete(dst, true); } catch (IOException ignore) { }
@ -163,11 +171,56 @@ public Path run() throws Exception {
conf = null;
resource = null;
dirs = null;
cachePerms = null;
}
return files.makeQualified(new Path(dst, sCopy.getName()));
}
/**
* Recursively change permissions of all files/dirs on path based
* on resource visibility.
* Change to 755 or 700 for dirs, 555 or 500 for files.
* @param fs FileSystem
* @param path Path to modify perms for
* @throws IOException
* @throws InterruptedException
*/
private void changePermissions(FileSystem fs, final Path path)
throws IOException, InterruptedException {
FileStatus fStatus = fs.getFileStatus(path);
FsPermission perm = cachePerms;
// set public perms as 755 or 555 based on dir or file
if (resource.getVisibility() == LocalResourceVisibility.PUBLIC) {
perm = fStatus.isDirectory() ? PUBLIC_DIR_PERMS : PUBLIC_FILE_PERMS;
}
// set private perms as 700 or 500
else {
// PRIVATE:
// APPLICATION:
perm = fStatus.isDirectory() ? PRIVATE_DIR_PERMS : PRIVATE_FILE_PERMS;
}
LOG.debug("Changing permissions for path " + path
+ " to perm " + perm);
final FsPermission fPerm = perm;
if (null == userUgi) {
files.setPermission(path, perm);
}
else {
userUgi.doAs(new PrivilegedExceptionAction<Void>() {
public Void run() throws Exception {
files.setPermission(path, fPerm);
return null;
}
});
}
if (fStatus.isDirectory()
&& !fStatus.isSymlink()) {
FileStatus[] statuses = fs.listStatus(path);
for (FileStatus status : statuses) {
changePermissions(fs, status.getPath());
}
}
}
private static long getEstimatedSize(LocalResource rsrc) {
if (rsrc.getSize() < 0) {
return -1;

10
hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/localizer/LocalResourceRequest.java
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@ -33,6 +33,7 @@ public class LocalResourceRequest
private final Path loc;
private final long timestamp;
private final LocalResourceType type;
private final LocalResourceVisibility visibility;
/**
* Wrap API resource to match against cache of localized resources.
@ -43,13 +44,16 @@ public LocalResourceRequest(LocalResource resource)
throws URISyntaxException {
this(ConverterUtils.getPathFromYarnURL(resource.getResource()),
resource.getTimestamp(),
resource.getType());
resource.getType(),
resource.getVisibility());
}
LocalResourceRequest(Path loc, long timestamp, LocalResourceType type) {
LocalResourceRequest(Path loc, long timestamp, LocalResourceType type,
LocalResourceVisibility visibility) {
this.loc = loc;
this.timestamp = timestamp;
this.type = type;
this.visibility = visibility;
}
@Override
@ -114,7 +118,7 @@ public long getSize() {
@Override
public LocalResourceVisibility getVisibility() {
throw new UnsupportedOperationException();
return visibility;
}
@Override

176
hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/test/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/localizer/TestFSDownload.java
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@ -18,6 +18,12 @@
package org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer;
import static org.apache.hadoop.fs.CreateFlag.CREATE;
import static org.apache.hadoop.fs.CreateFlag.OVERWRITE;
import static org.junit.Assert.assertEquals;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.net.URISyntaxException;
import java.util.EnumSet;
@ -28,29 +34,35 @@
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import java.util.jar.JarOutputStream;
import java.util.jar.Manifest;
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.fs.FSDataOutputStream;
import org.apache.hadoop.fs.FileContext;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.LocalDirAllocator;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.fs.permission.FsPermission;
import org.apache.hadoop.security.UserGroupInformation;
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.factories.RecordFactory;
import org.apache.hadoop.yarn.factory.providers.RecordFactoryProvider;
import org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.FSDownload;
import org.apache.hadoop.yarn.util.ConverterUtils;
import static org.apache.hadoop.fs.CreateFlag.*;
import org.junit.AfterClass;
import org.junit.Test;
import static org.junit.Assert.*;
public class TestFSDownload {
private static final Log LOG = LogFactory.getLog(TestFSDownload.class);
@AfterClass
public static void deleteTestDir() throws IOException {
FileContext fs = FileContext.getLocalFSFileContext();
@ -61,7 +73,7 @@ public static void deleteTestDir() throws IOException {
RecordFactoryProvider.getRecordFactory(null);
static LocalResource createFile(FileContext files, Path p, int len,
Random r) throws IOException, URISyntaxException {
Random r, LocalResourceVisibility vis) throws IOException {
FSDataOutputStream out = null;
try {
byte[] bytes = new byte[len];
@ -75,10 +87,30 @@ static LocalResource createFile(FileContext files, Path p, int len,
ret.setResource(ConverterUtils.getYarnUrlFromPath(p));
ret.setSize(len);
ret.setType(LocalResourceType.FILE);
ret.setVisibility(vis);
ret.setTimestamp(files.getFileStatus(p).getModificationTime());
return ret;
}
static LocalResource createJar(FileContext files, Path p,
LocalResourceVisibility vis) throws IOException {
LOG.info("Create jar file " + p);
File jarFile = new File((files.makeQualified(p)).toUri());
FileOutputStream stream = new FileOutputStream(jarFile);
LOG.info("Create jar out stream ");
JarOutputStream out = new JarOutputStream(stream, new Manifest());
LOG.info("Done writing jar stream ");
out.close();
LocalResource ret = recordFactory.newRecordInstance(LocalResource.class);
ret.setResource(ConverterUtils.getYarnUrlFromPath(p));
FileStatus status = files.getFileStatus(p);
ret.setSize(status.getLen());
ret.setTimestamp(status.getModificationTime());
ret.setType(LocalResourceType.ARCHIVE);
ret.setVisibility(vis);
return ret;
}
@Test
public void testDownload() throws IOException, URISyntaxException,
InterruptedException {
@ -89,6 +121,9 @@ public void testDownload() throws IOException, URISyntaxException,
files.mkdir(basedir, null, true);
conf.setStrings(TestFSDownload.class.getName(), basedir.toString());
Map<LocalResource, LocalResourceVisibility> rsrcVis =
new HashMap<LocalResource, LocalResourceVisibility>();
Random rand = new Random();
long sharedSeed = rand.nextLong();
rand.setSeed(sharedSeed);
@ -102,8 +137,19 @@ public void testDownload() throws IOException, URISyntaxException,
int[] sizes = new int[10];
for (int i = 0; i < 10; ++i) {
sizes[i] = rand.nextInt(512) + 512;
LocalResourceVisibility vis = LocalResourceVisibility.PUBLIC;
switch (i%3) {
case 1:
vis = LocalResourceVisibility.PRIVATE;
break;
case 2:
vis = LocalResourceVisibility.APPLICATION;
break;
}
LocalResource rsrc = createFile(files, new Path(basedir, "" + i),
sizes[i], rand);
sizes[i], rand, vis);
rsrcVis.put(rsrc, vis);
FSDownload fsd =
new FSDownload(files, UserGroupInformation.getCurrentUser(), conf,
dirs, rsrc, new Random(sharedSeed));
@ -115,6 +161,22 @@ public void testDownload() throws IOException, URISyntaxException,
Path localized = p.getValue().get();
assertEquals(sizes[Integer.valueOf(localized.getName())], p.getKey()
.getSize());
FileStatus status = files.getFileStatus(localized);
FsPermission perm = status.getPermission();
System.out.println("File permission " + perm +
" for rsrc vis " + p.getKey().getVisibility().name());
assert(rsrcVis.containsKey(p.getKey()));
switch (rsrcVis.get(p.getKey())) {
case PUBLIC:
Assert.assertTrue("Public file should be 555",
perm.toShort() == FSDownload.PUBLIC_FILE_PERMS.toShort());
break;
case PRIVATE:
case APPLICATION:
Assert.assertTrue("Private file should be 500",
perm.toShort() == FSDownload.PRIVATE_FILE_PERMS.toShort());
break;
}
}
} catch (ExecutionException e) {
throw new IOException("Failed exec", e);
@ -123,4 +185,100 @@ public void testDownload() throws IOException, URISyntaxException,
}
}
private void verifyPermsRecursively(FileSystem fs,
FileContext files, Path p,
LocalResourceVisibility vis) throws IOException {
FileStatus status = files.getFileStatus(p);
if (status.isDirectory()) {
if (vis == LocalResourceVisibility.PUBLIC) {
Assert.assertTrue(status.getPermission().toShort() ==
FSDownload.PUBLIC_DIR_PERMS.toShort());
}
else {
Assert.assertTrue(status.getPermission().toShort() ==
FSDownload.PRIVATE_DIR_PERMS.toShort());
}
if (!status.isSymlink()) {
FileStatus[] statuses = fs.listStatus(p);
for (FileStatus stat : statuses) {
verifyPermsRecursively(fs, files, stat.getPath(), vis);
}
}
}
else {
if (vis == LocalResourceVisibility.PUBLIC) {
Assert.assertTrue(status.getPermission().toShort() ==
FSDownload.PUBLIC_FILE_PERMS.toShort());
}
else {
Assert.assertTrue(status.getPermission().toShort() ==
FSDownload.PRIVATE_FILE_PERMS.toShort());
}
}
}
@Test
public void testDirDownload() throws IOException, InterruptedException {
Configuration conf = new Configuration();
FileContext files = FileContext.getLocalFSFileContext(conf);
final Path basedir = files.makeQualified(new Path("target",
TestFSDownload.class.getSimpleName()));
files.mkdir(basedir, null, true);
conf.setStrings(TestFSDownload.class.getName(), basedir.toString());
Map<LocalResource, LocalResourceVisibility> rsrcVis =
new HashMap<LocalResource, LocalResourceVisibility>();
Random rand = new Random();
long sharedSeed = rand.nextLong();
rand.setSeed(sharedSeed);
System.out.println("SEED: " + sharedSeed);
Map<LocalResource,Future<Path>> pending =
new HashMap<LocalResource,Future<Path>>();
ExecutorService exec = Executors.newSingleThreadExecutor();
LocalDirAllocator dirs =
new LocalDirAllocator(TestFSDownload.class.getName());
for (int i = 0; i < 5; ++i) {
LocalResourceVisibility vis = LocalResourceVisibility.PUBLIC;
switch (rand.nextInt()%3) {
case 1:
vis = LocalResourceVisibility.PRIVATE;
break;
case 2:
vis = LocalResourceVisibility.APPLICATION;
break;
}
LocalResource rsrc = createJar(files, new Path(basedir, "dir" + i
+ ".jar"), vis);
rsrcVis.put(rsrc, vis);
FSDownload fsd =
new FSDownload(files, UserGroupInformation.getCurrentUser(), conf,
dirs, rsrc, new Random(sharedSeed));
pending.put(rsrc, exec.submit(fsd));
}
try {
for (Map.Entry<LocalResource,Future<Path>> p : pending.entrySet()) {
Path localized = p.getValue().get();
FileStatus status = files.getFileStatus(localized);
System.out.println("Testing path " + localized);
assert(status.isDirectory());
assert(rsrcVis.containsKey(p.getKey()));
verifyPermsRecursively(localized.getFileSystem(conf),
files, localized, rsrcVis.get(p.getKey()));
}
} catch (ExecutionException e) {
throw new IOException("Failed exec", e);
} finally {
exec.shutdown();
}
}
}

3
hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/test/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/localizer/TestResourceRetention.java
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@ -23,6 +23,7 @@
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.yarn.api.records.LocalResourceType;
import org.apache.hadoop.yarn.api.records.LocalResourceVisibility;
import org.apache.hadoop.yarn.server.nodemanager.DeletionService;
import org.junit.Test;
@ -82,7 +83,7 @@ LocalResourcesTracker createMockTracker(String user, final long rsrcSize,
for (int i = 0; i < nRsrcs; ++i) {
final LocalResourceRequest req = new LocalResourceRequest(
new Path("file:///" + user + "/rsrc" + i), timestamp + i * tsstep,
LocalResourceType.FILE);
LocalResourceType.FILE, LocalResourceVisibility.PUBLIC);
final long ts = timestamp + i * tsstep;
final Path p = new Path("file:///local/" + user + "/rsrc" + i);
LocalizedResource rsrc = new LocalizedResource(req, null) {