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MAPREDUCE-6007. Add support to distcp to preserve raw.* namespace extended attributes. (clamb) 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/fs-encryption@1616657 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Charles Lamb 2014-08-08 01:32:18 +00:00
parent 311d2f0773
commit 041b8326a1
13 changed files with 423 additions and 84 deletions
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3
hadoop-mapreduce-project/CHANGES-fs-encryption.txt
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@ -11,5 +11,8 @@ fs-encryption (Unreleased)
IMPROVEMENTS
MAPREDUCE-6007. Add support to distcp to preserve raw.* namespace
extended attributes. (clamb)
BUG FIXES

20
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/site/markdown/DistCp.md.vm
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@ -191,6 +191,26 @@ $H3 Update and Overwrite
If `-update` is used, `1` is overwritten as well.
$H3 raw Namespace Extended Attribute Preservation
This section only applies to HDFS.
If the target and all of the source pathnames are in the /.reserved/raw
hierarchy, then 'raw' namespace extended attributes will be preserved.
'raw' xattrs are used by the system for internal functions such as encryption
meta data. They are only visible to users when accessed through the
/.reserved/raw hierarchy.
raw xattrs are preserved based solely on whether /.reserved/raw prefixes are
supplied. The -p (preserve, see below) flag does not impact preservation of
raw xattrs.
To prevent raw xattrs from being preserved, simply do not use the
/.reserved/raw prefix on any of the source and target paths.
If the /.reserved/raw prefix is specified on only a subset of the source and
target paths, an error will be displayed and a non-0 exit code returned.
Command Line Options
--------------------

6
hadoop-tools/hadoop-distcp/src/main/java/org/apache/hadoop/tools/DistCpConstants.java
View File

@ -42,6 +42,8 @@ public class DistCpConstants {
public static final String CONF_LABEL_LOG_PATH = "distcp.log.path";
public static final String CONF_LABEL_IGNORE_FAILURES = "distcp.ignore.failures";
public static final String CONF_LABEL_PRESERVE_STATUS = "distcp.preserve.status";
public static final String CONF_LABEL_PRESERVE_RAWXATTRS =
"distcp.preserve.rawxattrs";
public static final String CONF_LABEL_SYNC_FOLDERS = "distcp.sync.folders";
public static final String CONF_LABEL_DELETE_MISSING = "distcp.delete.missing.source";
public static final String CONF_LABEL_SSL_CONF = "distcp.keystore.resource";
@ -128,4 +130,8 @@ public class DistCpConstants {
public static final int MIN_RECORDS_PER_CHUNK_DEFAULT = 5;
public static final int SPLIT_RATIO_DEFAULT = 2;
/**
* Value of reserved raw HDFS directory when copying raw.* xattrs.
*/
static final String HDFS_RESERVED_RAW_DIRECTORY_NAME = "/.reserved/raw";
}

6
hadoop-tools/hadoop-distcp/src/main/java/org/apache/hadoop/tools/DistCpOptionSwitch.java
View File

@ -48,7 +48,11 @@ public enum DistCpOptionSwitch {
new Option("p", true, "preserve status (rbugpcax)(replication, " +
"block-size, user, group, permission, checksum-type, ACL, XATTR). " +
"If -p is specified with no <arg>, then preserves replication, " +
"block size, user, group, permission and checksum type.")),
"block size, user, group, permission and checksum type." +
"raw.* xattrs are preserved when both the source and destination " +
"paths are in the /.reserved/raw hierarchy (HDFS only). raw.* xattr" +
"preservation is independent of the -p flag." +
"Refer to the DistCp documentation for more details.")),
/**
* Update target location by copying only files that are missing

21
hadoop-tools/hadoop-distcp/src/main/java/org/apache/hadoop/tools/DistCpOptions.java
View File

@ -52,6 +52,8 @@ public class DistCpOptions {
private EnumSet<FileAttribute> preserveStatus = EnumSet.noneOf(FileAttribute.class);
private boolean preserveRawXattrs;
private Path atomicWorkPath;
private Path logPath;
@ -123,6 +125,7 @@ public class DistCpOptions {
this.sslConfigurationFile = that.getSslConfigurationFile();
this.copyStrategy = that.copyStrategy;
this.preserveStatus = that.preserveStatus;
this.preserveRawXattrs = that.preserveRawXattrs;
this.atomicWorkPath = that.getAtomicWorkPath();
this.logPath = that.getLogPath();
this.sourceFileListing = that.getSourceFileListing();
@ -345,7 +348,7 @@ public class DistCpOptions {
}
/**
* Checks if the input attibute should be preserved or not
* Checks if the input attribute should be preserved or not
*
* @param attribute - Attribute to check
* @return True if attribute should be preserved, false otherwise
@ -369,6 +372,21 @@ public class DistCpOptions {
preserveStatus.add(fileAttribute);
}
/**
* Return true if raw.* xattrs should be preserved.
* @return true if raw.* xattrs should be preserved.
*/
public boolean shouldPreserveRawXattrs() {
return preserveRawXattrs;
}
/**
* Indicate that raw.* xattrs should be preserved
*/
public void preserveRawXattrs() {
preserveRawXattrs = true;
}
/** Get work path for atomic commit. If null, the work
* path would be parentOf(targetPath) + "/._WIP_" + nameOf(targetPath)
*
@ -565,6 +583,7 @@ public class DistCpOptions {
", sourcePaths=" + sourcePaths +
", targetPath=" + targetPath +
", targetPathExists=" + targetPathExists +
", preserveRawXattrs=" + preserveRawXattrs +
'}';
}

48
hadoop-tools/hadoop-distcp/src/main/java/org/apache/hadoop/tools/SimpleCopyListing.java
View File

@ -37,6 +37,9 @@ import com.google.common.annotations.VisibleForTesting;
import java.io.*;
import java.util.Stack;
import static org.apache.hadoop.tools.DistCpConstants
.HDFS_RESERVED_RAW_DIRECTORY_NAME;
/**
* The SimpleCopyListing is responsible for making the exhaustive list of
* all files/directories under its specified list of input-paths.
@ -67,6 +70,10 @@ public class SimpleCopyListing extends CopyListing {
Path targetPath = options.getTargetPath();
FileSystem targetFS = targetPath.getFileSystem(getConf());
boolean targetIsFile = targetFS.isFile(targetPath);
targetPath = targetFS.makeQualified(targetPath);
final boolean targetIsReservedRaw =
Path.getPathWithoutSchemeAndAuthority(targetPath).toString().
startsWith(HDFS_RESERVED_RAW_DIRECTORY_NAME);
//If target is a file, then source has to be single file
if (targetIsFile) {
@ -93,6 +100,27 @@ public class SimpleCopyListing extends CopyListing {
if (!fs.exists(path)) {
throw new InvalidInputException(path + " doesn't exist");
}
if (Path.getPathWithoutSchemeAndAuthority(path).toString().
startsWith(HDFS_RESERVED_RAW_DIRECTORY_NAME)) {
if (!targetIsReservedRaw) {
final String msg = "The source path '" + path + "' starts with " +
HDFS_RESERVED_RAW_DIRECTORY_NAME + " but the target path '" +
targetPath + "' does not. Either all or none of the paths must " +
"have this prefix.";
throw new InvalidInputException(msg);
}
} else if (targetIsReservedRaw) {
final String msg = "The target path '" + targetPath + "' starts with " +
HDFS_RESERVED_RAW_DIRECTORY_NAME + " but the source path '" +
path + "' does not. Either all or none of the paths must " +
"have this prefix.";
throw new InvalidInputException(msg);
}
}
if (targetIsReservedRaw) {
options.preserveRawXattrs();
getConf().setBoolean(DistCpConstants.CONF_LABEL_PRESERVE_RAWXATTRS, true);
}
/* This is requires to allow map tasks to access each of the source
@ -135,6 +163,9 @@ public class SimpleCopyListing extends CopyListing {
try {
for (Path path: options.getSourcePaths()) {
FileSystem sourceFS = path.getFileSystem(getConf());
final boolean preserveAcls = options.shouldPreserve(FileAttribute.ACL);
final boolean preserveXAttrs = options.shouldPreserve(FileAttribute.XATTR);
final boolean preserveRawXAttrs = options.shouldPreserveRawXattrs();
path = makeQualified(path);
FileStatus rootStatus = sourceFS.getFileStatus(path);
@ -145,8 +176,7 @@ public class SimpleCopyListing extends CopyListing {
if (!explore || rootStatus.isDirectory()) {
CopyListingFileStatus rootCopyListingStatus =
DistCpUtils.toCopyListingFileStatus(sourceFS, rootStatus,
options.shouldPreserve(FileAttribute.ACL),
options.shouldPreserve(FileAttribute.XATTR));
preserveAcls, preserveXAttrs, preserveRawXAttrs);
writeToFileListingRoot(fileListWriter, rootCopyListingStatus,
sourcePathRoot, options);
}
@ -157,9 +187,9 @@ public class SimpleCopyListing extends CopyListing {
}
CopyListingFileStatus sourceCopyListingStatus =
DistCpUtils.toCopyListingFileStatus(sourceFS, sourceStatus,
options.shouldPreserve(FileAttribute.ACL) &&
sourceStatus.isDirectory(), options.shouldPreserve(
FileAttribute.XATTR) && sourceStatus.isDirectory());
preserveAcls && sourceStatus.isDirectory(),
preserveXAttrs && sourceStatus.isDirectory(),
preserveRawXAttrs && sourceStatus.isDirectory());
writeToFileListing(fileListWriter, sourceCopyListingStatus,
sourcePathRoot, options);
@ -261,6 +291,9 @@ public class SimpleCopyListing extends CopyListing {
DistCpOptions options)
throws IOException {
FileSystem sourceFS = sourcePathRoot.getFileSystem(getConf());
final boolean preserveAcls = options.shouldPreserve(FileAttribute.ACL);
final boolean preserveXAttrs = options.shouldPreserve(FileAttribute.XATTR);
final boolean preserveRawXattrs = options.shouldPreserveRawXattrs();
Stack<FileStatus> pathStack = new Stack<FileStatus>();
pathStack.push(sourceStatus);
@ -271,8 +304,9 @@ public class SimpleCopyListing extends CopyListing {
+ sourceStatus.getPath() + " for copy.");
CopyListingFileStatus childCopyListingStatus =
DistCpUtils.toCopyListingFileStatus(sourceFS, child,
options.shouldPreserve(FileAttribute.ACL) && child.isDirectory(),
options.shouldPreserve(FileAttribute.XATTR) && child.isDirectory());
preserveAcls && child.isDirectory(),
preserveXAttrs && child.isDirectory(),
preserveRawXattrs && child.isDirectory());
writeToFileListing(fileListWriter, childCopyListingStatus,
sourcePathRoot, options);
if (isDirectoryAndNotEmpty(sourceFS, child)) {

9
hadoop-tools/hadoop-distcp/src/main/java/org/apache/hadoop/tools/mapred/CopyCommitter.java
View File

@ -83,7 +83,9 @@ public class CopyCommitter extends FileOutputCommitter {
cleanupTempFiles(jobContext);
String attributes = conf.get(DistCpConstants.CONF_LABEL_PRESERVE_STATUS);
if (attributes != null && !attributes.isEmpty()) {
final boolean preserveRawXattrs =
conf.getBoolean(DistCpConstants.CONF_LABEL_PRESERVE_RAWXATTRS, false);
if ((attributes != null && !attributes.isEmpty()) || preserveRawXattrs) {
preserveFileAttributesForDirectories(conf);
}
@ -167,6 +169,8 @@ public class CopyCommitter extends FileOutputCommitter {
LOG.info("About to preserve attributes: " + attrSymbols);
EnumSet<FileAttribute> attributes = DistCpUtils.unpackAttributes(attrSymbols);
final boolean preserveRawXattrs =
conf.getBoolean(DistCpConstants.CONF_LABEL_PRESERVE_RAWXATTRS, false);
Path sourceListing = new Path(conf.get(DistCpConstants.CONF_LABEL_LISTING_FILE_PATH));
FileSystem clusterFS = sourceListing.getFileSystem(conf);
@ -194,7 +198,8 @@ public class CopyCommitter extends FileOutputCommitter {
if (targetRoot.equals(targetFile) && syncOrOverwrite) continue;
FileSystem targetFS = targetFile.getFileSystem(conf);
DistCpUtils.preserve(targetFS, targetFile, srcFileStatus, attributes);
DistCpUtils.preserve(targetFS, targetFile, srcFileStatus, attributes,
preserveRawXattrs);
taskAttemptContext.progress();
taskAttemptContext.setStatus("Preserving status on directory entries. [" +

10
hadoop-tools/hadoop-distcp/src/main/java/org/apache/hadoop/tools/mapred/CopyMapper.java
View File

@ -200,6 +200,8 @@ public class CopyMapper extends Mapper<Text, CopyListingFileStatus, Text, Text>
EnumSet<DistCpOptions.FileAttribute> fileAttributes
= getFileAttributeSettings(context);
final boolean preserveRawXattrs = context.getConfiguration().getBoolean(
DistCpConstants.CONF_LABEL_PRESERVE_RAWXATTRS, false);
final String description = "Copying " + sourcePath + " to " + target;
context.setStatus(description);
@ -211,10 +213,12 @@ public class CopyMapper extends Mapper<Text, CopyListingFileStatus, Text, Text>
FileSystem sourceFS;
try {
sourceFS = sourcePath.getFileSystem(conf);
final boolean preserveXAttrs =
fileAttributes.contains(FileAttribute.XATTR);
sourceCurrStatus = DistCpUtils.toCopyListingFileStatus(sourceFS,
sourceFS.getFileStatus(sourcePath),
fileAttributes.contains(FileAttribute.ACL),
fileAttributes.contains(FileAttribute.XATTR));
preserveXAttrs, preserveRawXattrs);
} catch (FileNotFoundException e) {
throw new IOException(new RetriableFileCopyCommand.CopyReadException(e));
}
@ -249,8 +253,8 @@ public class CopyMapper extends Mapper<Text, CopyListingFileStatus, Text, Text>
action, fileAttributes);
}
DistCpUtils.preserve(target.getFileSystem(conf), target,
sourceCurrStatus, fileAttributes);
DistCpUtils.preserve(target.getFileSystem(conf), target, sourceCurrStatus,
fileAttributes, preserveRawXattrs);
} catch (IOException exception) {
handleFailures(exception, sourceFileStatus, target, context);
}

48
hadoop-tools/hadoop-distcp/src/main/java/org/apache/hadoop/tools/util/DistCpUtils.java
View File

@ -18,6 +18,7 @@
package org.apache.hadoop.tools.util;
import com.google.common.collect.Maps;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.conf.Configuration;
@ -25,6 +26,7 @@ import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.fs.FileChecksum;
import org.apache.hadoop.fs.XAttr;
import org.apache.hadoop.fs.permission.AclEntry;
import org.apache.hadoop.fs.permission.AclUtil;
import org.apache.hadoop.fs.permission.FsPermission;
@ -151,7 +153,7 @@ public class DistCpUtils {
* @return - String containing first letters of each attribute to preserve
*/
public static String packAttributes(EnumSet<FileAttribute> attributes) {
StringBuffer buffer = new StringBuffer(5);
StringBuffer buffer = new StringBuffer(FileAttribute.values().length);
int len = 0;
for (FileAttribute attribute : attributes) {
buffer.append(attribute.name().charAt(0));
@ -186,13 +188,15 @@ public class DistCpUtils {
* @param targetFS - File system
* @param path - Path that needs to preserve original file status
* @param srcFileStatus - Original file status
* @param attributes - Attribute set that need to be preserved
* @param attributes - Attribute set that needs to be preserved
* @param preserveRawXattrs if true, raw.* xattrs should be preserved
* @throws IOException - Exception if any (particularly relating to group/owner
* change or any transient error)
*/
public static void preserve(FileSystem targetFS, Path path,
CopyListingFileStatus srcFileStatus,
EnumSet<FileAttribute> attributes) throws IOException {
EnumSet<FileAttribute> attributes,
boolean preserveRawXattrs) throws IOException {
FileStatus targetFileStatus = targetFS.getFileStatus(path);
String group = targetFileStatus.getGroup();
@ -214,15 +218,20 @@ public class DistCpUtils {
!srcFileStatus.getPermission().equals(targetFileStatus.getPermission())) {
targetFS.setPermission(path, srcFileStatus.getPermission());
}
if (attributes.contains(FileAttribute.XATTR)) {
final boolean preserveXAttrs = attributes.contains(FileAttribute.XATTR);
if (preserveXAttrs || preserveRawXattrs) {
final String rawNS = XAttr.NameSpace.RAW.name().toLowerCase();
Map<String, byte[]> srcXAttrs = srcFileStatus.getXAttrs();
Map<String, byte[]> targetXAttrs = getXAttrs(targetFS, path);
if (!srcXAttrs.equals(targetXAttrs)) {
if (srcXAttrs != null && !srcXAttrs.equals(targetXAttrs)) {
Iterator<Entry<String, byte[]>> iter = srcXAttrs.entrySet().iterator();
while (iter.hasNext()) {
Entry<String, byte[]> entry = iter.next();
targetFS.setXAttr(path, entry.getKey(), entry.getValue());
final String xattrName = entry.getKey();
if (xattrName.startsWith(rawNS) || preserveXAttrs) {
targetFS.setXAttr(path, entry.getKey(), entry.getValue());
}
}
}
}
@ -286,11 +295,12 @@ public class DistCpUtils {
* @param fileStatus FileStatus of file
* @param preserveAcls boolean true if preserving ACLs
* @param preserveXAttrs boolean true if preserving XAttrs
* @param preserveRawXAttrs boolean true if preserving raw.* XAttrs
* @throws IOException if there is an I/O error
*/
public static CopyListingFileStatus toCopyListingFileStatus(
FileSystem fileSystem, FileStatus fileStatus, boolean preserveAcls,
boolean preserveXAttrs) throws IOException {
boolean preserveXAttrs, boolean preserveRawXAttrs) throws IOException {
CopyListingFileStatus copyListingFileStatus =
new CopyListingFileStatus(fileStatus);
if (preserveAcls) {
@ -301,9 +311,25 @@ public class DistCpUtils {
copyListingFileStatus.setAclEntries(aclEntries);
}
}
if (preserveXAttrs) {
Map<String, byte[]> xAttrs = fileSystem.getXAttrs(fileStatus.getPath());
copyListingFileStatus.setXAttrs(xAttrs);
if (preserveXAttrs || preserveRawXAttrs) {
Map<String, byte[]> srcXAttrs = fileSystem.getXAttrs(fileStatus.getPath());
if (preserveXAttrs && preserveRawXAttrs) {
copyListingFileStatus.setXAttrs(srcXAttrs);
} else {
Map<String, byte[]> trgXAttrs = Maps.newHashMap();
final String rawNS = XAttr.NameSpace.RAW.name().toLowerCase();
for (Map.Entry<String, byte[]> ent : srcXAttrs.entrySet()) {
final String xattrName = ent.getKey();
if (xattrName.startsWith(rawNS)) {
if (preserveRawXAttrs) {
trgXAttrs.put(xattrName, ent.getValue());
}
} else if (preserveXAttrs) {
trgXAttrs.put(xattrName, ent.getValue());
}
}
copyListingFileStatus.setXAttrs(trgXAttrs);
}
}
return copyListingFileStatus;
}

170
hadoop-tools/hadoop-distcp/src/test/java/org/apache/hadoop/tools/TestDistCpWithRawXAttrs.java Normal file
View File

@ -0,0 +1,170 @@
/**
* 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.tools;
import java.util.Map;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.hdfs.DFSConfigKeys;
import org.apache.hadoop.hdfs.MiniDFSCluster;
import org.apache.hadoop.io.IOUtils;
import org.apache.hadoop.tools.util.DistCpTestUtils;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
import com.google.common.collect.Maps;
/**
* Tests distcp in combination with HDFS raw.* XAttrs.
*/
public class TestDistCpWithRawXAttrs {
private static MiniDFSCluster cluster;
private static Configuration conf;
private static FileSystem fs;
private static final String rawName1 = "raw.a1";
private static final byte[] rawValue1 = {0x37, 0x38, 0x39};
private static final String userName1 = "user.a1";
private static final byte[] userValue1 = {0x38, 0x38, 0x38};
private static final Path dir1 = new Path("/src/dir1");
private static final Path subDir1 = new Path(dir1, "subdir1");
private static final Path file1 = new Path("/src/file1");
private static final String rawRootName = "/.reserved/raw";
private static final String rootedDestName = "/dest";
private static final String rootedSrcName = "/src";
private static final String rawDestName = "/.reserved/raw/dest";
private static final String rawSrcName = "/.reserved/raw/src";
@BeforeClass
public static void init() throws Exception {
conf = new Configuration();
conf.setBoolean(DFSConfigKeys.DFS_NAMENODE_XATTRS_ENABLED_KEY, true);
cluster = new MiniDFSCluster.Builder(conf).numDataNodes(1).format(true)
.build();
cluster.waitActive();
fs = cluster.getFileSystem();
}
@AfterClass
public static void shutdown() {
IOUtils.cleanup(null, fs);
if (cluster != null) {
cluster.shutdown();
}
}
/* Test that XAttrs and raw.* XAttrs are preserved when appropriate. */
@Test
public void testPreserveRawXAttrs1() throws Exception {
final String relSrc = "/./.reserved/../.reserved/raw/../raw/src/../src";
final String relDst = "/./.reserved/../.reserved/raw/../raw/dest/../dest";
doTestPreserveRawXAttrs(relSrc, relDst, "-px", true, true,
DistCpConstants.SUCCESS);
doTestPreserveRawXAttrs(rootedSrcName, rootedDestName, "-px",
false, true, DistCpConstants.SUCCESS);
doTestPreserveRawXAttrs(rootedSrcName, rawDestName, "-px",
false, true, DistCpConstants.INVALID_ARGUMENT);
doTestPreserveRawXAttrs(rawSrcName, rootedDestName, "-px",
false, true, DistCpConstants.INVALID_ARGUMENT);
doTestPreserveRawXAttrs(rawSrcName, rawDestName, "-px",
true, true, DistCpConstants.SUCCESS);
final Path savedWd = fs.getWorkingDirectory();
try {
fs.setWorkingDirectory(new Path("/.reserved/raw"));
doTestPreserveRawXAttrs("../.." + rawSrcName, "../.." + rawDestName,
"-px", true, true, DistCpConstants.SUCCESS);
} finally {
fs.setWorkingDirectory(savedWd);
}
}
/* Test that XAttrs are not preserved and raw.* are when appropriate. */
@Test
public void testPreserveRawXAttrs2() throws Exception {
doTestPreserveRawXAttrs(rootedSrcName, rootedDestName, "-p",
false, false, DistCpConstants.SUCCESS);
doTestPreserveRawXAttrs(rootedSrcName, rawDestName, "-p",
false, false, DistCpConstants.INVALID_ARGUMENT);
doTestPreserveRawXAttrs(rawSrcName, rootedDestName, "-p",
false, false, DistCpConstants.INVALID_ARGUMENT);
doTestPreserveRawXAttrs(rawSrcName, rawDestName, "-p",
true, false, DistCpConstants.SUCCESS);
}
/* Test that XAttrs are not preserved and raw.* are when appropriate. */
@Test
public void testPreserveRawXAttrs3() throws Exception {
doTestPreserveRawXAttrs(rootedSrcName, rootedDestName, null,
false, false, DistCpConstants.SUCCESS);
doTestPreserveRawXAttrs(rootedSrcName, rawDestName, null,
false, false, DistCpConstants.INVALID_ARGUMENT);
doTestPreserveRawXAttrs(rawSrcName, rootedDestName, null,
false, false, DistCpConstants.INVALID_ARGUMENT);
doTestPreserveRawXAttrs(rawSrcName, rawDestName, null,
true, false, DistCpConstants.SUCCESS);
}
private static Path[] pathnames = { new Path("dir1"),
new Path("dir1/subdir1"),
new Path("file1") };
private static void makeFilesAndDirs(FileSystem fs) throws Exception {
fs.delete(new Path("/src"), true);
fs.delete(new Path("/dest"), true);
fs.mkdirs(subDir1);
fs.create(file1).close();
}
private void initXAttrs() throws Exception {
makeFilesAndDirs(fs);
for (Path p : pathnames) {
fs.setXAttr(new Path(rawRootName + "/src", p), rawName1, rawValue1);
fs.setXAttr(new Path(rawRootName + "/src", p), userName1, userValue1);
}
}
private void doTestPreserveRawXAttrs(String src, String dest,
String preserveOpts, boolean expectRaw, boolean expectUser,
int expectedExitCode) throws Exception {
initXAttrs();
DistCpTestUtils.assertRunDistCp(expectedExitCode, src, dest,
preserveOpts, conf);
if (expectedExitCode == DistCpConstants.SUCCESS) {
Map<String, byte[]> xAttrs = Maps.newHashMap();
for (Path p : pathnames) {
xAttrs.clear();
if (expectRaw) {
xAttrs.put(rawName1, rawValue1);
}
if (expectUser) {
xAttrs.put(userName1, userValue1);
}
DistCpTestUtils.assertXAttrs(new Path(dest, p), fs, xAttrs);
}
}
}
}

71
hadoop-tools/hadoop-distcp/src/test/java/org/apache/hadoop/tools/TestDistCpWithXAttrs.java
View File

@ -18,13 +18,9 @@
package org.apache.hadoop.tools;
import static org.junit.Assert.*;
import java.io.IOException;
import java.net.URI;
import java.util.Iterator;
import java.util.Map;
import java.util.Map.Entry;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.CommonConfigurationKeys;
@ -37,8 +33,8 @@ import org.apache.hadoop.fs.permission.FsPermission;
import org.apache.hadoop.hdfs.DFSConfigKeys;
import org.apache.hadoop.hdfs.MiniDFSCluster;
import org.apache.hadoop.io.IOUtils;
import org.apache.hadoop.tools.util.DistCpTestUtils;
import org.apache.hadoop.util.Progressable;
import org.apache.hadoop.util.ToolRunner;
import org.junit.AfterClass;
import org.junit.BeforeClass;
@ -79,6 +75,7 @@ public class TestDistCpWithXAttrs {
private static final Path dstFile2 = new Path(dstDir2, "file2");
private static final Path dstFile3 = new Path(dstDir2, "file3");
private static final Path dstFile4 = new Path(dstDir2, "file4");
private static final String rootedSrcName = "/src";
@BeforeClass
public static void init() throws Exception {
@ -125,55 +122,56 @@ public class TestDistCpWithXAttrs {
@Test
public void testPreserveXAttrs() throws Exception {
assertRunDistCp(DistCpConstants.SUCCESS, "/dstPreserveXAttrs");
DistCpTestUtils.assertRunDistCp(DistCpConstants.SUCCESS, rootedSrcName,
"/dstPreserveXAttrs", "-px", conf);
// dstDir1
Map<String, byte[]> xAttrs = Maps.newHashMap();
xAttrs.put(name1, value1);
xAttrs.put(name2, value2);
assertXAttrs(dstDir1, xAttrs);
DistCpTestUtils.assertXAttrs(dstDir1, fs, xAttrs);
// dstSubDir1
xAttrs.clear();
xAttrs.put(name1, value1);
xAttrs.put(name3, new byte[0]);
assertXAttrs(dstSubDir1, xAttrs);
DistCpTestUtils.assertXAttrs(dstSubDir1, fs, xAttrs);
// dstFile1
xAttrs.clear();
xAttrs.put(name1, value1);
xAttrs.put(name2, value2);
xAttrs.put(name3, new byte[0]);
assertXAttrs(dstFile1, xAttrs);
DistCpTestUtils.assertXAttrs(dstFile1, fs, xAttrs);
// dstDir2
xAttrs.clear();
xAttrs.put(name2, value2);
assertXAttrs(dstDir2, xAttrs);
DistCpTestUtils.assertXAttrs(dstDir2, fs, xAttrs);
// dstFile2
xAttrs.clear();
xAttrs.put(name1, value1);
xAttrs.put(name4, new byte[0]);
assertXAttrs(dstFile2, xAttrs);
DistCpTestUtils.assertXAttrs(dstFile2, fs, xAttrs);
// dstFile3
xAttrs.clear();
xAttrs.put(name3, new byte[0]);
xAttrs.put(name4, new byte[0]);
assertXAttrs(dstFile3, xAttrs);
DistCpTestUtils.assertXAttrs(dstFile3, fs, xAttrs);
// dstFile4
xAttrs.clear();
assertXAttrs(dstFile4, xAttrs);
DistCpTestUtils.assertXAttrs(dstFile4, fs, xAttrs);
}
@Test
public void testXAttrsNotEnabled() throws Exception {
try {
restart(false);
assertRunDistCp(DistCpConstants.XATTRS_NOT_SUPPORTED,
"/dstXAttrsNotEnabled");
DistCpTestUtils.assertRunDistCp(DistCpConstants.XATTRS_NOT_SUPPORTED,
rootedSrcName, "/dstXAttrsNotEnabled", "-px", conf);
} finally {
restart(true);
}
@ -181,8 +179,8 @@ public class TestDistCpWithXAttrs {
@Test
public void testXAttrsNotImplemented() throws Exception {
assertRunDistCp(DistCpConstants.XATTRS_NOT_SUPPORTED,
"stubfs://dstXAttrsNotImplemented");
DistCpTestUtils.assertRunDistCp(DistCpConstants.XATTRS_NOT_SUPPORTED,
rootedSrcName, "stubfs://dstXAttrsNotImplemented", "-px", conf);
}
/**
@ -251,45 +249,6 @@ public class TestDistCpWithXAttrs {
}
}
/**
* Asserts the XAttrs returned by getXAttrs for a specific path.
*
* @param path String path to check
* @param xAttrs XAttr[] expected xAttrs
* @throws Exception if there is any error
*/
private static void assertXAttrs(Path path, Map<String, byte[]> expectedXAttrs)
throws Exception {
Map<String, byte[]> xAttrs = fs.getXAttrs(path);
assertEquals(expectedXAttrs.size(), xAttrs.size());
Iterator<Entry<String, byte[]>> i = expectedXAttrs.entrySet().iterator();
while (i.hasNext()) {
Entry<String, byte[]> e = i.next();
String name = e.getKey();
byte[] value = e.getValue();
if (value == null) {
assertTrue(xAttrs.containsKey(name) && xAttrs.get(name) == null);
} else {
assertArrayEquals(value, xAttrs.get(name));
}
}
}
/**
* Runs distcp from /src to specified destination, preserving XAttrs. Asserts
* expected exit code.
*
* @param int exitCode expected exit code
* @param dst String distcp destination
* @throws Exception if there is any error
*/
private static void assertRunDistCp(int exitCode, String dst)
throws Exception {
DistCp distCp = new DistCp(conf, null);
assertEquals(exitCode,
ToolRunner.run(conf, distCp, new String[] { "-px", "/src", dst }));
}
/**
* Initialize the cluster, wait for it to become active, and get FileSystem.
*

89
hadoop-tools/hadoop-distcp/src/test/java/org/apache/hadoop/tools/util/DistCpTestUtils.java Normal file
View File

@ -0,0 +1,89 @@
/**
* 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.tools.util;
import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import java.util.Iterator;
import java.util.Map;
import java.util.Map.Entry;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.tools.DistCp;
import org.apache.hadoop.util.ToolRunner;
/**
* Utility class for DistCpTests
*/
public class DistCpTestUtils {
/**
* Asserts the XAttrs returned by getXAttrs for a specific path match an
* expected set of XAttrs.
*
* @param path String path to check
* @param fs FileSystem to use for the path
* @param expectedXAttrs XAttr[] expected xAttrs
* @throws Exception if there is any error
*/
public static void assertXAttrs(Path path, FileSystem fs,
Map<String, byte[]> expectedXAttrs)
throws Exception {
Map<String, byte[]> xAttrs = fs.getXAttrs(path);
assertEquals(path.toString(), expectedXAttrs.size(), xAttrs.size());
Iterator<Entry<String, byte[]>> i = expectedXAttrs.entrySet().iterator();
while (i.hasNext()) {
Entry<String, byte[]> e = i.next();
String name = e.getKey();
byte[] value = e.getValue();
if (value == null) {
assertTrue(xAttrs.containsKey(name) && xAttrs.get(name) == null);
} else {
assertArrayEquals(value, xAttrs.get(name));
}
}
}
/**
* Runs distcp from src to dst, preserving XAttrs. Asserts the
* expected exit code.
*
* @param exitCode expected exit code
* @param src distcp src path
* @param dst distcp destination
* @param options distcp command line options
* @param conf Configuration to use
* @throws Exception if there is any error
*/
public static void assertRunDistCp(int exitCode, String src, String dst,
String options, Configuration conf)
throws Exception {
DistCp distCp = new DistCp(conf, null);
String[] optsArr = options == null ?
new String[] { src, dst } :
new String[] { options, src, dst };
assertEquals(exitCode,
ToolRunner.run(conf, distCp, optsArr));
}
}

6
hadoop-tools/hadoop-distcp/src/test/java/org/apache/hadoop/tools/util/TestDistCpUtils.java
View File

@ -114,14 +114,14 @@ public class TestDistCpUtils {
fs.setPermission(path, noPerm);
fs.setOwner(path, "nobody", "nobody");
DistCpUtils.preserve(fs, path, srcStatus, attributes);
DistCpUtils.preserve(fs, path, srcStatus, attributes, false);
FileStatus target = fs.getFileStatus(path);
Assert.assertEquals(target.getPermission(), noPerm);
Assert.assertEquals(target.getOwner(), "nobody");
Assert.assertEquals(target.getGroup(), "nobody");
attributes.add(FileAttribute.PERMISSION);
DistCpUtils.preserve(fs, path, srcStatus, attributes);
DistCpUtils.preserve(fs, path, srcStatus, attributes, false);
target = fs.getFileStatus(path);
Assert.assertEquals(target.getPermission(), srcStatus.getPermission());
Assert.assertEquals(target.getOwner(), "nobody");
@ -129,7 +129,7 @@ public class TestDistCpUtils {
attributes.add(FileAttribute.GROUP);
attributes.add(FileAttribute.USER);
DistCpUtils.preserve(fs, path, srcStatus, attributes);
DistCpUtils.preserve(fs, path, srcStatus, attributes, false);
target = fs.getFileStatus(path);
Assert.assertEquals(target.getPermission(), srcStatus.getPermission());
Assert.assertEquals(target.getOwner(), srcStatus.getOwner());