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HADOOP-13073 RawLocalFileSystem does not react on changing umask. Contributed by Andras Bokor

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This commit is contained in:
Steve Loughran 2016-07-14 10:29:29 +01:00
parent 1fa1fab695
commit 45af585e7a
2 changed files with 56 additions and 7 deletions
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7
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/RawLocalFileSystem.java
View File

@ -64,8 +64,6 @@ public class RawLocalFileSystem extends FileSystem {
// Temporary workaround for HADOOP-9652.
private static boolean useDeprecatedFileStatus = true;
private FsPermission umask;
@VisibleForTesting
public static void useStatIfAvailable() {
useDeprecatedFileStatus = !Stat.isAvailable();
@ -99,7 +97,6 @@ public File pathToFile(Path path) {
public void initialize(URI uri, Configuration conf) throws IOException {
super.initialize(uri, conf);
setConf(conf);
umask = FsPermission.getUMask(conf);
}
/*******************************************************
@ -233,7 +230,7 @@ private LocalFSFileOutputStream(Path f, boolean append,
if (permission == null) {
this.fos = new FileOutputStream(file, append);
} else {
permission = permission.applyUMask(umask);
permission = permission.applyUMask(FsPermission.getUMask(getConf()));
if (Shell.WINDOWS && NativeIO.isAvailable()) {
this.fos = NativeIO.Windows.createFileOutputStreamWithMode(file,
append, permission.toShort());
@ -510,7 +507,7 @@ protected boolean mkOneDirWithMode(Path p, File p2f, FsPermission permission)
if (permission == null) {
permission = FsPermission.getDirDefault();
}
permission = permission.applyUMask(umask);
permission = permission.applyUMask(FsPermission.getUMask(getConf()));
if (Shell.WINDOWS && NativeIO.isAvailable()) {
try {
NativeIO.Windows.createDirectoryWithMode(p2f, permission.toShort());

56
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/TestLocalFileSystemPermission.java
View File

@ -29,6 +29,10 @@
import junit.framework.*;
import static org.hamcrest.CoreMatchers.is;
import static org.hamcrest.CoreMatchers.not;
import static org.junit.Assert.assertThat;
/**
* This class tests the local file system via the FileSystem abstraction.
*/
@ -67,9 +71,9 @@ public void testLocalFSDirsetPermission() throws IOException {
System.out.println("Cannot run test for Windows");
return;
}
Configuration conf = new Configuration();
LocalFileSystem localfs = FileSystem.getLocal(new Configuration());
Configuration conf = localfs.getConf();
conf.set(CommonConfigurationKeys.FS_PERMISSIONS_UMASK_KEY, "044");
LocalFileSystem localfs = FileSystem.getLocal(conf);
Path dir = new Path(TEST_PATH_PREFIX + "dir");
localfs.mkdirs(dir);
try {
@ -237,6 +241,54 @@ public void testLocalFSsetOwner() throws IOException {
finally {cleanup(localfs, f);}
}
/**
* Steps:
* 1. Create a directory with default permissions: 777 with umask 022
* 2. Check the directory has good permissions: 755
* 3. Set the umask to 062.
* 4. Create a new directory with default permissions.
* 5. For this directory we expect 715 as permission not 755
* @throws Exception we can throw away all the exception.
*/
public void testSetUmaskInRealTime() throws Exception {
if (Path.WINDOWS) {
System.out.println("Cannot run test for Windows");
return;
}
LocalFileSystem localfs = FileSystem.getLocal(new Configuration());
Configuration conf = localfs.getConf();
conf.set(CommonConfigurationKeys.FS_PERMISSIONS_UMASK_KEY, "022");
System.out.println(
conf.get(CommonConfigurationKeys.FS_PERMISSIONS_UMASK_KEY));
Path dir = new Path(TEST_PATH_PREFIX + "dir");
Path dir2 = new Path(TEST_PATH_PREFIX + "dir2");
try {
assertTrue(localfs.mkdirs(dir));
FsPermission initialPermission = getPermission(localfs, dir);
assertEquals(
"With umask 022 permission should be 755 since the default " +
"permission is 777", new FsPermission("755"), initialPermission);
// Modify umask and create a new directory
// and check if new umask is applied
conf.set(CommonConfigurationKeys.FS_PERMISSIONS_UMASK_KEY, "062");
assertTrue(localfs.mkdirs(dir2));
FsPermission finalPermission = localfs.getFileStatus(dir2)
.getPermission();
assertThat("With umask 062 permission should not be 755 since the " +
"default permission is 777", new FsPermission("755"),
is(not(finalPermission)));
assertEquals(
"With umask 062 we expect 715 since the default permission is 777",
new FsPermission("715"), finalPermission);
} finally {
conf.set(CommonConfigurationKeys.FS_PERMISSIONS_UMASK_KEY, "022");
cleanup(localfs, dir);
cleanup(localfs, dir2);
}
}
static List<String> getGroups() throws IOException {
List<String> a = new ArrayList<String>();
String s = Shell.execCommand(Shell.getGroupsCommand());