Author: cmccabe
Date: Thu Aug 8 21:05:10 2013
New Revision: 1512028
URL: http://svn.apache.org/r1512028
Log:
HADOOP-9355. Abstract symlink tests to use either FileContext or FileSystem.
(all files) (Andrew Wang via Colin Patrick McCabe)
Modified:
hadoop/common/branches/branch-2.1-beta/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/fs/TestFcHdfsSymlink.java
Modified:
hadoop/common/branches/branch-2.1-beta/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/fs/TestFcHdfsSymlink.java
URL:
http://svn.apache.org/viewvc/hadoop/common/branches/branch-2.1-beta/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/fs/TestFcHdfsSymlink.java?rev=1512028&r1=1512027&r2=1512028&view=diff
==============================================================================
---
hadoop/common/branches/branch-2.1-beta/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/fs/TestFcHdfsSymlink.java
(original)
+++
hadoop/common/branches/branch-2.1-beta/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/fs/TestFcHdfsSymlink.java
Thu Aug 8 21:05:10 2013
@@ -1,347 +0,0 @@
-/**
- * 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.fs;
-
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.fail;
-
-import java.io.IOException;
-import java.net.URI;
-
-import org.apache.commons.logging.impl.Log4JLogger;
-import org.apache.hadoop.conf.Configuration;
-import org.apache.hadoop.fs.permission.FsPermission;
-import org.apache.hadoop.hdfs.DFSConfigKeys;
-import org.apache.hadoop.hdfs.DistributedFileSystem;
-import org.apache.hadoop.hdfs.HdfsConfiguration;
-import org.apache.hadoop.hdfs.MiniDFSCluster;
-import org.apache.hadoop.hdfs.protocol.HdfsConstants;
-import org.apache.hadoop.hdfs.protocol.QuotaExceededException;
-import org.apache.hadoop.hdfs.server.namenode.NameNode;
-import org.apache.hadoop.hdfs.web.WebHdfsFileSystem;
-import org.apache.hadoop.hdfs.web.WebHdfsTestUtil;
-import org.apache.hadoop.ipc.RemoteException;
-import org.apache.log4j.Level;
-import org.junit.AfterClass;
-import org.junit.BeforeClass;
-import org.junit.Test;
-
-/**
- * Test symbolic links using FileContext and Hdfs.
- */
-public class TestFcHdfsSymlink extends FileContextSymlinkBaseTest {
-
- {
- ((Log4JLogger)NameNode.stateChangeLog).getLogger().setLevel(Level.ALL);
- }
-
- private static FileContextTestHelper fileContextTestHelper =
- new FileContextTestHelper("/tmp/TestFcHdfsSymlink");
- private static MiniDFSCluster cluster;
- private static WebHdfsFileSystem webhdfs;
- private static DistributedFileSystem dfs;
-
- @Override
- protected String getScheme() {
- return "hdfs";
- }
-
- @Override
- protected String testBaseDir1() throws IOException {
- return "/test1";
- }
-
- @Override
- protected String testBaseDir2() throws IOException {
- return "/test2";
- }
-
- @Override
- protected URI testURI() {
- return cluster.getURI(0);
- }
-
- @Override
- protected IOException unwrapException(IOException e) {
- if (e instanceof RemoteException) {
- return ((RemoteException)e).unwrapRemoteException();
- }
- return e;
- }
-
- @BeforeClass
- public static void testSetUp() throws Exception {
- Configuration conf = new HdfsConfiguration();
- conf.setBoolean(DFSConfigKeys.DFS_WEBHDFS_ENABLED_KEY, true);
- conf.set(FsPermission.UMASK_LABEL, "000");
- cluster = new MiniDFSCluster.Builder(conf).build();
- fc = FileContext.getFileContext(cluster.getURI(0));
- webhdfs = WebHdfsTestUtil.getWebHdfsFileSystem(conf);
- dfs = cluster.getFileSystem();
- }
-
- @AfterClass
- public static void testTearDown() throws Exception {
- cluster.shutdown();
- }
-
- @Test
- /** Access a file using a link that spans Hdfs to LocalFs */
- public void testLinkAcrossFileSystems() throws IOException {
- FileContext localFc = FileContext.getLocalFSFileContext();
- Path localDir = new
Path("file://"+fileContextTestHelper.getAbsoluteTestRootDir(localFc)+"/test");
- Path localFile = new
Path("file://"+fileContextTestHelper.getAbsoluteTestRootDir(localFc)+"/test/file");
- Path link = new Path(testBaseDir1(), "linkToFile");
- localFc.delete(localDir, true);
- localFc.mkdir(localDir, FileContext.DEFAULT_PERM, true);
- localFc.setWorkingDirectory(localDir);
- assertEquals(localDir, localFc.getWorkingDirectory());
- createAndWriteFile(localFc, localFile);
- fc.createSymlink(localFile, link, false);
- readFile(link);
- assertEquals(fileSize, fc.getFileStatus(link).getLen());
- }
-
- @Test
- /** Test renaming a file across two file systems using a link */
- public void testRenameAcrossFileSystemsViaLink() throws IOException {
- FileContext localFc = FileContext.getLocalFSFileContext();
- Path localDir = new
Path("file://"+fileContextTestHelper.getAbsoluteTestRootDir(localFc)+"/test");
- Path hdfsFile = new Path(testBaseDir1(), "file");
- Path link = new Path(testBaseDir1(), "link");
- Path hdfsFileNew = new Path(testBaseDir1(), "fileNew");
- Path hdfsFileNewViaLink = new Path(link, "fileNew");
- localFc.delete(localDir, true);
- localFc.mkdir(localDir, FileContext.DEFAULT_PERM, true);
- localFc.setWorkingDirectory(localDir);
- createAndWriteFile(fc, hdfsFile);
- fc.createSymlink(localDir, link, false);
- // Rename hdfs://test1/file to hdfs://test1/link/fileNew
- // which renames to file://TEST_ROOT/test/fileNew which
- // spans AbstractFileSystems and therefore fails.
- try {
- fc.rename(hdfsFile, hdfsFileNewViaLink);
- fail("Renamed across file systems");
- } catch (InvalidPathException ipe) {
- // Expected
- }
- // Now rename hdfs://test1/link/fileNew to hdfs://test1/fileNew
- // which renames file://TEST_ROOT/test/fileNew to hdfs://test1/fileNew
- // which spans AbstractFileSystems and therefore fails.
- createAndWriteFile(fc, hdfsFileNewViaLink);
- try {
- fc.rename(hdfsFileNewViaLink, hdfsFileNew);
- fail("Renamed across file systems");
- } catch (InvalidPathException ipe) {
- // Expected
- }
- }
-
- @Test
- /** Test access a symlink using AbstractFileSystem */
- public void testAccessLinkFromAbstractFileSystem() throws IOException {
- Path file = new Path(testBaseDir1(), "file");
- Path link = new Path(testBaseDir1(), "linkToFile");
- createAndWriteFile(file);
- fc.createSymlink(file, link, false);
- try {
- AbstractFileSystem afs = fc.getDefaultFileSystem();
- afs.open(link);
- fail("Opened a link using AFS");
- } catch (UnresolvedLinkException x) {
- // Expected
- }
- }
-
- @Test
- /** Test create symlink to / */
- public void testCreateLinkToSlash() throws IOException {
- Path dir = new Path(testBaseDir1());
- Path file = new Path(testBaseDir1(), "file");
- Path link = new Path(testBaseDir1(), "linkToSlash");
- Path fileViaLink = new Path(testBaseDir1()+"/linkToSlash"+
- testBaseDir1()+"/file");
- createAndWriteFile(file);
- fc.setWorkingDirectory(dir);
- fc.createSymlink(new Path("/"), link, false);
- readFile(fileViaLink);
- assertEquals(fileSize, fc.getFileStatus(fileViaLink).getLen());
- // Ditto when using another file context since the file system
- // for the slash is resolved according to the link's parent.
- FileContext localFc = FileContext.getLocalFSFileContext();
- Path linkQual = new Path(cluster.getURI(0).toString(), fileViaLink);
- assertEquals(fileSize, localFc.getFileStatus(linkQual).getLen());
- }
-
-
- @Test
- /** setPermission affects the target not the link */
- public void testSetPermissionAffectsTarget() throws IOException {
- Path file = new Path(testBaseDir1(), "file");
- Path dir = new Path(testBaseDir2());
- Path linkToFile = new Path(testBaseDir1(), "linkToFile");
- Path linkToDir = new Path(testBaseDir1(), "linkToDir");
- createAndWriteFile(file);
- fc.createSymlink(file, linkToFile, false);
- fc.createSymlink(dir, linkToDir, false);
-
- // Changing the permissions using the link does not modify
- // the permissions of the link..
- FsPermission perms = fc.getFileLinkStatus(linkToFile).getPermission();
- fc.setPermission(linkToFile, new FsPermission((short)0664));
- fc.setOwner(linkToFile, "user", "group");
- assertEquals(perms, fc.getFileLinkStatus(linkToFile).getPermission());
- // but the file's permissions were adjusted appropriately
- FileStatus stat = fc.getFileStatus(file);
- assertEquals(0664, stat.getPermission().toShort());
- assertEquals("user", stat.getOwner());
- assertEquals("group", stat.getGroup());
- // Getting the file's permissions via the link is the same
- // as getting the permissions directly.
- assertEquals(stat.getPermission(),
- fc.getFileStatus(linkToFile).getPermission());
-
- // Ditto for a link to a directory
- perms = fc.getFileLinkStatus(linkToDir).getPermission();
- fc.setPermission(linkToDir, new FsPermission((short)0664));
- fc.setOwner(linkToDir, "user", "group");
- assertEquals(perms, fc.getFileLinkStatus(linkToDir).getPermission());
- stat = fc.getFileStatus(dir);
- assertEquals(0664, stat.getPermission().toShort());
- assertEquals("user", stat.getOwner());
- assertEquals("group", stat.getGroup());
- assertEquals(stat.getPermission(),
- fc.getFileStatus(linkToDir).getPermission());
- }
-
- @Test
- /** Create a symlink using a path with scheme but no authority */
- public void testCreateWithPartQualPathFails() throws IOException {
- Path fileWoAuth = new Path("hdfs:///test/file");
- Path linkWoAuth = new Path("hdfs:///test/link");
- try {
- createAndWriteFile(fileWoAuth);
- fail("HDFS requires URIs with schemes have an authority");
- } catch (RuntimeException e) {
- // Expected
- }
- try {
- fc.createSymlink(new Path("foo"), linkWoAuth, false);
- fail("HDFS requires URIs with schemes have an authority");
- } catch (RuntimeException e) {
- // Expected
- }
- }
-
- @Test
- /** setReplication affects the target not the link */
- public void testSetReplication() throws IOException {
- Path file = new Path(testBaseDir1(), "file");
- Path link = new Path(testBaseDir1(), "linkToFile");
- createAndWriteFile(file);
- fc.createSymlink(file, link, false);
- fc.setReplication(link, (short)2);
- assertEquals(0, fc.getFileLinkStatus(link).getReplication());
- assertEquals(2, fc.getFileStatus(link).getReplication());
- assertEquals(2, fc.getFileStatus(file).getReplication());
- }
-
- @Test
- /** Test create symlink with a max len name */
- public void testCreateLinkMaxPathLink() throws IOException {
- Path dir = new Path(testBaseDir1());
- Path file = new Path(testBaseDir1(), "file");
- final int maxPathLen = HdfsConstants.MAX_PATH_LENGTH;
- final int dirLen = dir.toString().length() + 1;
- int len = maxPathLen - dirLen;
-
- // Build a MAX_PATH_LENGTH path
- StringBuilder sb = new StringBuilder("");
- for (int i = 0; i < (len / 10); i++) {
- sb.append("0123456789");
- }
- for (int i = 0; i < (len % 10); i++) {
- sb.append("x");
- }
- Path link = new Path(sb.toString());
- assertEquals(maxPathLen, dirLen + link.toString().length());
-
- // Check that it works
- createAndWriteFile(file);
- fc.setWorkingDirectory(dir);
- fc.createSymlink(file, link, false);
- readFile(link);
-
- // Now modify the path so it's too large
- link = new Path(sb.toString()+"x");
- try {
- fc.createSymlink(file, link, false);
- fail("Path name should be too long");
- } catch (IOException x) {
- // Expected
- }
- }
-
- @Test
- /** Test symlink owner */
- public void testLinkOwner() throws IOException {
- Path file = new Path(testBaseDir1(), "file");
- Path link = new Path(testBaseDir1(), "symlinkToFile");
- createAndWriteFile(file);
- fc.createSymlink(file, link, false);
- FileStatus statFile = fc.getFileStatus(file);
- FileStatus statLink = fc.getFileStatus(link);
- assertEquals(statLink.getOwner(), statFile.getOwner());
- }
-
- @Test
- /** Test WebHdfsFileSystem.craeteSymlink(..). */
- public void testWebHDFS() throws IOException {
- Path file = new Path(testBaseDir1(), "file");
- Path link = new Path(testBaseDir1(), "linkToFile");
- createAndWriteFile(file);
- webhdfs.createSymlink(file, link, false);
- fc.setReplication(link, (short)2);
- assertEquals(0, fc.getFileLinkStatus(link).getReplication());
- assertEquals(2, fc.getFileStatus(link).getReplication());
- assertEquals(2, fc.getFileStatus(file).getReplication());
- }
-
- @Test
- /** Test craeteSymlink(..) with quota. */
- public void testQuota() throws IOException {
- final Path dir = new Path(testBaseDir1());
- dfs.setQuota(dir, 3, HdfsConstants.QUOTA_DONT_SET);
-
- final Path file = new Path(dir, "file");
- createAndWriteFile(file);
-
- //creating the first link should succeed
- final Path link1 = new Path(dir, "link1");
- fc.createSymlink(file, link1, false);
-
- try {
- //creating the second link should fail with QuotaExceededException.
- final Path link2 = new Path(dir, "link2");
- fc.createSymlink(file, link2, false);
- fail("Created symlink despite quota violation");
- } catch(QuotaExceededException qee) {
- //expected
- }
- }
-}
