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HADOOP-17029. Return correct permission and owner for listing on internal directories in ViewFs. Contributed by Abhishek Das. 

(cherry picked from commit e7dd02768b)
This commit is contained in:
Abhishek Das 2020-06-05 14:56:51 -07:00 committed by Uma Maheswara Rao G
parent fa41e38450
commit c3bef4906c
3 changed files with 145 additions and 39 deletions
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27
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/viewfs/ViewFileSystem.java
View File

@ -1200,13 +1200,26 @@ public class ViewFileSystem extends FileSystem {
INode<FileSystem> inode = iEntry.getValue();
if (inode.isLink()) {
INodeLink<FileSystem> link = (INodeLink<FileSystem>) inode;
result[i++] = new FileStatus(0, false, 0, 0,
creationTime, creationTime, PERMISSION_555,
ugi.getShortUserName(), ugi.getPrimaryGroupName(),
link.getTargetLink(),
new Path(inode.fullPath).makeQualified(
myUri, null));
try {
String linkedPath = link.getTargetFileSystem().getUri().getPath();
FileStatus status =
((ChRootedFileSystem)link.getTargetFileSystem())
.getMyFs().getFileStatus(new Path(linkedPath));
result[i++] = new FileStatus(status.getLen(), false,
status.getReplication(), status.getBlockSize(),
status.getModificationTime(), status.getAccessTime(),
status.getPermission(), status.getOwner(), status.getGroup(),
link.getTargetLink(),
new Path(inode.fullPath).makeQualified(
myUri, null));
} catch (FileNotFoundException ex) {
result[i++] = new FileStatus(0, false, 0, 0,
creationTime, creationTime, PERMISSION_555,
ugi.getShortUserName(), ugi.getPrimaryGroupName(),
link.getTargetLink(),
new Path(inode.fullPath).makeQualified(
myUri, null));
}
} else {
result[i++] = new FileStatus(0, true, 0, 0,
creationTime, creationTime, PERMISSION_555,

41
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/viewfs/ViewFs.java
View File

@ -917,11 +917,25 @@ public class ViewFs extends AbstractFileSystem {
if (inode.isLink()) {
INodeLink<AbstractFileSystem> inodelink =
(INodeLink<AbstractFileSystem>) inode;
result = new FileStatus(0, false, 0, 0, creationTime, creationTime,
try {
String linkedPath = inodelink.getTargetFileSystem()
.getUri().getPath();
FileStatus status = ((ChRootedFs)inodelink.getTargetFileSystem())
.getMyFs().getFileStatus(new Path(linkedPath));
result = new FileStatus(status.getLen(), false,
status.getReplication(), status.getBlockSize(),
status.getModificationTime(), status.getAccessTime(),
status.getPermission(), status.getOwner(), status.getGroup(),
inodelink.getTargetLink(),
new Path(inode.fullPath).makeQualified(
myUri, null));
} catch (FileNotFoundException ex) {
result = new FileStatus(0, false, 0, 0, creationTime, creationTime,
PERMISSION_555, ugi.getShortUserName(), ugi.getPrimaryGroupName(),
inodelink.getTargetLink(),
new Path(inode.fullPath).makeQualified(
myUri, null));
}
} else {
result = new FileStatus(0, true, 0, 0, creationTime, creationTime,
PERMISSION_555, ugi.getShortUserName(), ugi.getPrimaryGroupName(),
@ -976,12 +990,25 @@ public class ViewFs extends AbstractFileSystem {
INodeLink<AbstractFileSystem> link =
(INodeLink<AbstractFileSystem>) inode;
result[i++] = new FileStatus(0, false, 0, 0,
creationTime, creationTime,
PERMISSION_555, ugi.getShortUserName(), ugi.getPrimaryGroupName(),
link.getTargetLink(),
new Path(inode.fullPath).makeQualified(
myUri, null));
try {
String linkedPath = link.getTargetFileSystem().getUri().getPath();
FileStatus status = ((ChRootedFs)link.getTargetFileSystem())
.getMyFs().getFileStatus(new Path(linkedPath));
result[i++] = new FileStatus(status.getLen(), false,
status.getReplication(), status.getBlockSize(),
status.getModificationTime(), status.getAccessTime(),
status.getPermission(), status.getOwner(), status.getGroup(),
link.getTargetLink(),
new Path(inode.fullPath).makeQualified(
myUri, null));
} catch (FileNotFoundException ex) {
result[i++] = new FileStatus(0, false, 0, 0,
creationTime, creationTime, PERMISSION_555,
ugi.getShortUserName(), ugi.getPrimaryGroupName(),
link.getTargetLink(),
new Path(inode.fullPath).makeQualified(
myUri, null));
}
} else {
result[i++] = new FileStatus(0, true, 0, 0,
creationTime, creationTime,

116
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/viewfs/TestViewfsFileStatus.java
View File

@ -29,10 +29,13 @@ import org.apache.hadoop.fs.FileUtil;
import org.apache.hadoop.fs.FsConstants;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.fs.contract.ContractTestUtils;
import org.apache.hadoop.fs.permission.FsPermission;
import org.apache.hadoop.io.DataInputBuffer;
import org.apache.hadoop.io.DataOutputBuffer;
import org.apache.hadoop.test.GenericTestUtils;
import org.junit.After;
import org.junit.AfterClass;
import org.junit.Before;
import org.junit.Test;
import org.mockito.Mockito;
@ -48,6 +51,17 @@ public class TestViewfsFileStatus {
private static final File TEST_DIR = GenericTestUtils.getTestDir(
TestViewfsFileStatus.class.getSimpleName());
@Before
public void setUp() {
FileUtil.fullyDelete(TEST_DIR);
assertTrue(TEST_DIR.mkdirs());
}
@After
public void tearDown() throws IOException {
FileUtil.fullyDelete(TEST_DIR);
}
@Test
public void testFileStatusSerialziation()
throws IOException, URISyntaxException {
@ -56,38 +70,90 @@ public class TestViewfsFileStatus {
File infile = new File(TEST_DIR, testfilename);
final byte[] content = "dingos".getBytes();
FileOutputStream fos = null;
try {
fos = new FileOutputStream(infile);
try (FileOutputStream fos = new FileOutputStream(infile)) {
fos.write(content);
} finally {
if (fos != null) {
fos.close();
}
}
assertEquals((long)content.length, infile.length());
Configuration conf = new Configuration();
ConfigUtil.addLink(conf, "/foo/bar/baz", TEST_DIR.toURI());
FileSystem vfs = FileSystem.get(FsConstants.VIEWFS_URI, conf);
assertEquals(ViewFileSystem.class, vfs.getClass());
Path path = new Path("/foo/bar/baz", testfilename);
FileStatus stat = vfs.getFileStatus(path);
assertEquals(content.length, stat.getLen());
ContractTestUtils.assertNotErasureCoded(vfs, path);
assertTrue(path + " should have erasure coding unset in " +
"FileStatus#toString(): " + stat,
stat.toString().contains("isErasureCoded=false"));
try (FileSystem vfs = FileSystem.get(FsConstants.VIEWFS_URI, conf)) {
assertEquals(ViewFileSystem.class, vfs.getClass());
Path path = new Path("/foo/bar/baz", testfilename);
FileStatus stat = vfs.getFileStatus(path);
assertEquals(content.length, stat.getLen());
ContractTestUtils.assertNotErasureCoded(vfs, path);
assertTrue(path + " should have erasure coding unset in " +
"FileStatus#toString(): " + stat,
stat.toString().contains("isErasureCoded=false"));
// check serialization/deserialization
DataOutputBuffer dob = new DataOutputBuffer();
stat.write(dob);
DataInputBuffer dib = new DataInputBuffer();
dib.reset(dob.getData(), 0, dob.getLength());
FileStatus deSer = new FileStatus();
deSer.readFields(dib);
assertEquals(content.length, deSer.getLen());
assertFalse(deSer.isErasureCoded());
// check serialization/deserialization
DataOutputBuffer dob = new DataOutputBuffer();
stat.write(dob);
DataInputBuffer dib = new DataInputBuffer();
dib.reset(dob.getData(), 0, dob.getLength());
FileStatus deSer = new FileStatus();
deSer.readFields(dib);
assertEquals(content.length, deSer.getLen());
assertFalse(deSer.isErasureCoded());
}
}
/**
* Tests the ACL returned from getFileStatus for directories and files.
* @throws IOException
*/
@Test
public void testListStatusACL() throws IOException {
String testfilename = "testFileACL";
String childDirectoryName = "testDirectoryACL";
TEST_DIR.mkdirs();
File infile = new File(TEST_DIR, testfilename);
final byte[] content = "dingos".getBytes();
try (FileOutputStream fos = new FileOutputStream(infile)) {
fos.write(content);
}
assertEquals(content.length, infile.length());
File childDir = new File(TEST_DIR, childDirectoryName);
childDir.mkdirs();
Configuration conf = new Configuration();
ConfigUtil.addLink(conf, "/file", infile.toURI());
ConfigUtil.addLink(conf, "/dir", childDir.toURI());
try (FileSystem vfs = FileSystem.get(FsConstants.VIEWFS_URI, conf)) {
assertEquals(ViewFileSystem.class, vfs.getClass());
FileStatus[] statuses = vfs.listStatus(new Path("/"));
FileSystem localFs = FileSystem.getLocal(conf);
FileStatus fileStat = localFs.getFileStatus(new Path(infile.getPath()));
FileStatus dirStat = localFs.getFileStatus(new Path(childDir.getPath()));
for (FileStatus status : statuses) {
if (status.getPath().getName().equals("file")) {
assertEquals(fileStat.getPermission(), status.getPermission());
} else {
assertEquals(dirStat.getPermission(), status.getPermission());
}
}
localFs.setPermission(new Path(infile.getPath()),
FsPermission.valueOf("-rwxr--r--"));
localFs.setPermission(new Path(childDir.getPath()),
FsPermission.valueOf("-r--rwxr--"));
statuses = vfs.listStatus(new Path("/"));
for (FileStatus status : statuses) {
if (status.getPath().getName().equals("file")) {
assertEquals(FsPermission.valueOf("-rwxr--r--"),
status.getPermission());
} else {
assertEquals(FsPermission.valueOf("-r--rwxr--"),
status.getPermission());
}
}
}
}
// Tests that ViewFileSystem.getFileChecksum calls res.targetFileSystem