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From w...@apache.org
Subject [5/8] hadoop git commit: Revert "HDFS-10346. Implement asynchronous setPermission/setOwner for DistributedFileSystem. Contributed by Xiaobing Zhou"
Date Sat, 04 Jun 2016 01:23:04 GMT
Revert "HDFS-10346. Implement asynchronous setPermission/setOwner for DistributedFileSystem.
 Contributed by  Xiaobing Zhou"

This reverts commit 69768bf9e057cb0b433e398b328c40fe8f1586c8.


Project: http://git-wip-us.apache.org/repos/asf/hadoop/repo
Commit: http://git-wip-us.apache.org/repos/asf/hadoop/commit/2529cabf
Tree: http://git-wip-us.apache.org/repos/asf/hadoop/tree/2529cabf
Diff: http://git-wip-us.apache.org/repos/asf/hadoop/diff/2529cabf

Branch: refs/heads/branch-2
Commit: 2529cabf12e2c37740723fe7f52cc7bd94d92f0d
Parents: 071aeab
Author: Andrew Wang <wang@apache.org>
Authored: Fri Jun 3 18:10:49 2016 -0700
Committer: Andrew Wang <wang@apache.org>
Committed: Fri Jun 3 18:10:49 2016 -0700

----------------------------------------------------------------------
 .../hadoop/hdfs/AsyncDistributedFileSystem.java |  59 ----
 .../ClientNamenodeProtocolTranslatorPB.java     |  39 +--
 .../apache/hadoop/hdfs/TestAsyncDFSRename.java  | 267 ++-----------------
 .../apache/hadoop/hdfs/TestDFSPermission.java   |  29 +-
 4 files changed, 43 insertions(+), 351 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/hadoop/blob/2529cabf/hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/AsyncDistributedFileSystem.java
----------------------------------------------------------------------
diff --git a/hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/AsyncDistributedFileSystem.java
b/hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/AsyncDistributedFileSystem.java
index 4fe0861..356ae3f 100644
--- a/hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/AsyncDistributedFileSystem.java
+++ b/hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/AsyncDistributedFileSystem.java
@@ -27,7 +27,6 @@ import java.util.concurrent.atomic.AtomicBoolean;
 import org.apache.hadoop.classification.InterfaceStability.Unstable;
 import org.apache.hadoop.fs.Options;
 import org.apache.hadoop.fs.Path;
-import org.apache.hadoop.fs.permission.FsPermission;
 import org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB;
 import org.apache.hadoop.ipc.Client;
 
@@ -38,9 +37,6 @@ import com.google.common.util.concurrent.AbstractFuture;
  * This instance of this class is the way end-user code interacts
  * with a Hadoop DistributedFileSystem in an asynchronous manner.
  *
- * This class is unstable, so no guarantee is provided as to reliability,
- * stability or compatibility across any level of release granularity.
- *
  *****************************************************************/
 @Unstable
 public class AsyncDistributedFileSystem {
@@ -115,59 +111,4 @@ public class AsyncDistributedFileSystem {
       Client.setAsynchronousMode(isAsync);
     }
   }
-
-  /**
-   * Set permission of a path.
-   *
-   * @param p
-   *          the path the permission is set to
-   * @param permission
-   *          the permission that is set to a path.
-   * @return an instance of Future, #get of which is invoked to wait for
-   *         asynchronous call being finished.
-   */
-  public Future<Void> setPermission(Path p, final FsPermission permission)
-      throws IOException {
-    dfs.getFsStatistics().incrementWriteOps(1);
-    final Path absPath = dfs.fixRelativePart(p);
-    final boolean isAsync = Client.isAsynchronousMode();
-    Client.setAsynchronousMode(true);
-    try {
-      dfs.getClient().setPermission(dfs.getPathName(absPath), permission);
-      return getReturnValue();
-    } finally {
-      Client.setAsynchronousMode(isAsync);
-    }
-  }
-
-  /**
-   * Set owner of a path (i.e. a file or a directory). The parameters username
-   * and groupname cannot both be null.
-   *
-   * @param p
-   *          The path
-   * @param username
-   *          If it is null, the original username remains unchanged.
-   * @param groupname
-   *          If it is null, the original groupname remains unchanged.
-   * @return an instance of Future, #get of which is invoked to wait for
-   *         asynchronous call being finished.
-   */
-  public Future<Void> setOwner(Path p, String username, String groupname)
-      throws IOException {
-    if (username == null && groupname == null) {
-      throw new IOException("username == null && groupname == null");
-    }
-
-    dfs.getFsStatistics().incrementWriteOps(1);
-    final Path absPath = dfs.fixRelativePart(p);
-    final boolean isAsync = Client.isAsynchronousMode();
-    Client.setAsynchronousMode(true);
-    try {
-      dfs.getClient().setOwner(dfs.getPathName(absPath), username, groupname);
-      return getReturnValue();
-    } finally {
-      Client.setAsynchronousMode(isAsync);
-    }
-  }
 }

http://git-wip-us.apache.org/repos/asf/hadoop/blob/2529cabf/hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/protocolPB/ClientNamenodeProtocolTranslatorPB.java
----------------------------------------------------------------------
diff --git a/hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/protocolPB/ClientNamenodeProtocolTranslatorPB.java
b/hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/protocolPB/ClientNamenodeProtocolTranslatorPB.java
index 28ac78d..9a52d93 100644
--- a/hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/protocolPB/ClientNamenodeProtocolTranslatorPB.java
+++ b/hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/protocolPB/ClientNamenodeProtocolTranslatorPB.java
@@ -359,30 +359,12 @@ public class ClientNamenodeProtocolTranslatorPB implements
         .setPermission(PBHelperClient.convert(permission))
         .build();
     try {
-      if (Client.isAsynchronousMode()) {
-        rpcProxy.setPermission(null, req);
-        setReturnValueCallback();
-      } else {
-        rpcProxy.setPermission(null, req);
-      }
+      rpcProxy.setPermission(null, req);
     } catch (ServiceException e) {
       throw ProtobufHelper.getRemoteException(e);
     }
   }
 
-  private void setReturnValueCallback() {
-    final Callable<Message> returnMessageCallback = ProtobufRpcEngine
-        .getReturnMessageCallback();
-    Callable<Void> callBack = new Callable<Void>() {
-      @Override
-      public Void call() throws Exception {
-        returnMessageCallback.call();
-        return null;
-      }
-    };
-    RETURN_VALUE_CALLBACK.set(callBack);
-  }
-
   @Override
   public void setOwner(String src, String username, String groupname)
       throws IOException {
@@ -393,12 +375,7 @@ public class ClientNamenodeProtocolTranslatorPB implements
     if (groupname != null)
       req.setGroupname(groupname);
     try {
-      if (Client.isAsynchronousMode()) {
-        rpcProxy.setOwner(null, req.build());
-        setReturnValueCallback();
-      } else {
-        rpcProxy.setOwner(null, req.build());
-      }
+      rpcProxy.setOwner(null, req.build());
     } catch (ServiceException e) {
       throw ProtobufHelper.getRemoteException(e);
     }
@@ -527,7 +504,17 @@ public class ClientNamenodeProtocolTranslatorPB implements
     try {
       if (Client.isAsynchronousMode()) {
         rpcProxy.rename2(null, req);
-        setReturnValueCallback();
+
+        final Callable<Message> returnMessageCallback = ProtobufRpcEngine
+            .getReturnMessageCallback();
+        Callable<Void> callBack = new Callable<Void>() {
+          @Override
+          public Void call() throws Exception {
+            returnMessageCallback.call();
+            return null;
+          }
+        };
+        RETURN_VALUE_CALLBACK.set(callBack);
       } else {
         rpcProxy.rename2(null, req);
       }

http://git-wip-us.apache.org/repos/asf/hadoop/blob/2529cabf/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestAsyncDFSRename.java
----------------------------------------------------------------------
diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestAsyncDFSRename.java
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestAsyncDFSRename.java
index 7539fbd..d129299 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestAsyncDFSRename.java
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestAsyncDFSRename.java
@@ -22,11 +22,8 @@ import static org.junit.Assert.assertTrue;
 
 import java.io.IOException;
 import java.security.PrivilegedExceptionAction;
-import java.util.Arrays;
 import java.util.HashMap;
-import java.util.List;
 import java.util.Map;
-import java.util.Random;
 import java.util.concurrent.ExecutionException;
 import java.util.concurrent.Future;
 
@@ -34,30 +31,18 @@ import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.CommonConfigurationKeys;
-import org.apache.hadoop.fs.FileStatus;
 import org.apache.hadoop.fs.FileSystem;
 import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.fs.Options.Rename;
-import org.apache.hadoop.fs.permission.FsAction;
-import org.apache.hadoop.fs.permission.FsPermission;
-import org.apache.hadoop.hdfs.TestDFSPermission.PermissionGenerator;
 import org.apache.hadoop.hdfs.protocol.LocatedBlocks;
 import org.apache.hadoop.hdfs.server.blockmanagement.BlockManager;
 import org.apache.hadoop.hdfs.server.namenode.NameNodeAdapter;
 import org.apache.hadoop.ipc.AsyncCallLimitExceededException;
-import org.apache.hadoop.security.AccessControlException;
 import org.apache.hadoop.security.UserGroupInformation;
-import org.apache.hadoop.util.Time;
 import org.junit.Test;
 
 public class TestAsyncDFSRename {
   public static final Log LOG = LogFactory.getLog(TestAsyncDFSRename.class);
-  private final long seed = Time.now();
-  private final Random r = new Random(seed);
-  private final PermissionGenerator permGenerator = new PermissionGenerator(r);
-  private final short replFactor = 2;
-  private final long blockSize = 512;
-  private long fileLen = blockSize * 3;
 
   /**
    * Check the blocks of dst file are cleaned after rename with overwrite
@@ -65,6 +50,8 @@ public class TestAsyncDFSRename {
    */
   @Test(timeout = 60000)
   public void testAsyncRenameWithOverwrite() throws Exception {
+    final short replFactor = 2;
+    final long blockSize = 512;
     Configuration conf = new Configuration();
     MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).numDataNodes(
         replFactor).build();
@@ -73,6 +60,8 @@ public class TestAsyncDFSRename {
     AsyncDistributedFileSystem adfs = dfs.getAsyncDistributedFileSystem();
 
     try {
+
+      long fileLen = blockSize * 3;
       String src = "/foo/src";
       String dst = "/foo/dst";
       String src2 = "/foo/src2";
@@ -126,6 +115,8 @@ public class TestAsyncDFSRename {
 
   @Test(timeout = 60000)
   public void testCallGetReturnValueMultipleTimes() throws Exception {
+    final short replFactor = 2;
+    final long blockSize = 512;
     final Path renameDir = new Path(
         "/test/testCallGetReturnValueMultipleTimes/");
     final Configuration conf = new HdfsConfiguration();
@@ -136,6 +127,7 @@ public class TestAsyncDFSRename {
     final DistributedFileSystem dfs = cluster.getFileSystem();
     final AsyncDistributedFileSystem adfs = dfs.getAsyncDistributedFileSystem();
     final int count = 100;
+    long fileLen = blockSize * 3;
     final Map<Integer, Future<Void>> returnFutures = new HashMap<Integer,
Future<Void>>();
 
     assertTrue(dfs.mkdirs(renameDir));
@@ -186,15 +178,15 @@ public class TestAsyncDFSRename {
     }
   }
 
-  @Test
-  public void testConservativeConcurrentAsyncRenameWithOverwrite()
+  @Test(timeout = 120000)
+  public void testAggressiveConcurrentAsyncRenameWithOverwrite()
       throws Exception {
     internalTestConcurrentAsyncRenameWithOverwrite(100,
         "testAggressiveConcurrentAsyncRenameWithOverwrite");
   }
 
   @Test(timeout = 60000)
-  public void testAggressiveConcurrentAsyncRenameWithOverwrite()
+  public void testConservativeConcurrentAsyncRenameWithOverwrite()
       throws Exception {
     internalTestConcurrentAsyncRenameWithOverwrite(10000,
         "testConservativeConcurrentAsyncRenameWithOverwrite");
@@ -202,6 +194,8 @@ public class TestAsyncDFSRename {
 
   private void internalTestConcurrentAsyncRenameWithOverwrite(
       final int asyncCallLimit, final String basePath) throws Exception {
+    final short replFactor = 2;
+    final long blockSize = 512;
     final Path renameDir = new Path(String.format("/test/%s/", basePath));
     Configuration conf = new HdfsConfiguration();
     conf.setInt(CommonConfigurationKeys.IPC_CLIENT_ASYNC_CALLS_MAX_KEY,
@@ -212,6 +206,7 @@ public class TestAsyncDFSRename {
     DistributedFileSystem dfs = cluster.getFileSystem();
     AsyncDistributedFileSystem adfs = dfs.getAsyncDistributedFileSystem();
     int count = 1000;
+    long fileLen = blockSize * 3;
     int start = 0, end = 0;
     Map<Integer, Future<Void>> returnFutures = new HashMap<Integer, Future<Void>>();
 
@@ -279,206 +274,8 @@ public class TestAsyncDFSRename {
     }
   }
 
-  @Test
-  public void testConservativeConcurrentAsyncAPI() throws Exception {
-    internalTestConcurrentAsyncAPI(100, "testConservativeConcurrentAsyncAPI");
-  }
-
-  @Test(timeout = 60000)
-  public void testAggressiveConcurrentAsyncAPI() throws Exception {
-    internalTestConcurrentAsyncAPI(10000, "testAggressiveConcurrentAsyncAPI");
-  }
-
-  private void internalTestConcurrentAsyncAPI(final int asyncCallLimit,
-      final String basePath) throws Exception {
-    Configuration conf = new HdfsConfiguration();
-    String group1 = "group1";
-    String group2 = "group2";
-    String user1 = "user1";
-    int count = 500;
-
-    // explicitly turn on permission checking
-    conf.setBoolean(DFSConfigKeys.DFS_PERMISSIONS_ENABLED_KEY, true);
-    // set the limit of max async calls
-    conf.setInt(CommonConfigurationKeys.IPC_CLIENT_ASYNC_CALLS_MAX_KEY,
-        asyncCallLimit);
-
-    // create fake mapping for the groups
-    Map<String, String[]> u2gMap = new HashMap<String, String[]>(1);
-    u2gMap.put(user1, new String[] {group1, group2});
-    DFSTestUtil.updateConfWithFakeGroupMapping(conf, u2gMap);
-
-    // start mini cluster
-    final MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf)
-        .numDataNodes(3).build();
-    cluster.waitActive();
-    AsyncDistributedFileSystem adfs = cluster.getFileSystem()
-        .getAsyncDistributedFileSystem();
-
-    // prepare for test
-    FileSystem rootFs = FileSystem.get(conf);
-    final Path parent = new Path(String.format("/test/%s/", basePath));
-    final Path[] srcs = new Path[count];
-    final Path[] dsts = new Path[count];
-    short[] permissions = new short[count];
-    for (int i = 0; i < count; i++) {
-      srcs[i] = new Path(parent, "src" + i);
-      dsts[i] = new Path(parent, "dst" + i);
-      DFSTestUtil.createFile(rootFs, srcs[i], fileLen, replFactor, 1);
-      DFSTestUtil.createFile(rootFs, dsts[i], fileLen, replFactor, 1);
-      assertTrue(rootFs.exists(srcs[i]));
-      assertTrue(rootFs.getFileStatus(srcs[i]).isFile());
-      assertTrue(rootFs.exists(dsts[i]));
-      assertTrue(rootFs.getFileStatus(dsts[i]).isFile());
-      permissions[i] = permGenerator.next();
-    }
-
-    Map<Integer, Future<Void>> renameRetFutures =
-        new HashMap<Integer, Future<Void>>();
-    Map<Integer, Future<Void>> permRetFutures =
-        new HashMap<Integer, Future<Void>>();
-    Map<Integer, Future<Void>> ownerRetFutures =
-        new HashMap<Integer, Future<Void>>();
-    int start = 0, end = 0;
-    // test rename
-    for (int i = 0; i < count; i++) {
-      for (;;) {
-        try {
-          Future<Void> returnFuture = adfs.rename(srcs[i], dsts[i],
-              Rename.OVERWRITE);
-          renameRetFutures.put(i, returnFuture);
-          break;
-        } catch (AsyncCallLimitExceededException e) {
-          start = end;
-          end = i;
-          waitForReturnValues(renameRetFutures, start, end);
-        }
-      }
-    }
-
-    // wait for completing the calls
-    for (int i = start; i < count; i++) {
-      renameRetFutures.get(i).get();
-    }
-
-    // Restart NN and check the rename successfully
-    cluster.restartNameNodes();
-
-    // very the src should not exist, dst should
-    for (int i = 0; i < count; i++) {
-      assertFalse(rootFs.exists(srcs[i]));
-      assertTrue(rootFs.exists(dsts[i]));
-    }
-
-    // test permissions
-    try {
-      for (int i = 0; i < count; i++) {
-        for (;;) {
-          try {
-            Future<Void> retFuture = adfs.setPermission(dsts[i],
-                new FsPermission(permissions[i]));
-            permRetFutures.put(i, retFuture);
-            break;
-          } catch (AsyncCallLimitExceededException e) {
-            start = end;
-            end = i;
-            waitForReturnValues(permRetFutures, start, end);
-          }
-        }
-      }
-      // wait for completing the calls
-      for (int i = start; i < count; i++) {
-        permRetFutures.get(i).get();
-      }
-
-      // Restart NN and check permission then
-      cluster.restartNameNodes();
-
-      // verify the permission
-      for (int i = 0; i < count; i++) {
-        assertTrue(rootFs.exists(dsts[i]));
-        FsPermission fsPerm = new FsPermission(permissions[i]);
-        checkAccessPermissions(rootFs.getFileStatus(dsts[i]),
-            fsPerm.getUserAction());
-      }
-
-      // test setOwner
-      start = 0;
-      end = 0;
-      for (int i = 0; i < count; i++) {
-        for (;;) {
-          try {
-            Future<Void> retFuture = adfs.setOwner(dsts[i], "user1",
-                "group2");
-            ownerRetFutures.put(i, retFuture);
-            break;
-          } catch (AsyncCallLimitExceededException e) {
-            start = end;
-            end = i;
-            waitForReturnValues(ownerRetFutures, start, end);
-          }
-        }
-      }
-      // wait for completing the calls
-      for (int i = start; i < count; i++) {
-        ownerRetFutures.get(i).get();
-      }
-
-      // Restart NN and check owner then
-      cluster.restartNameNodes();
-
-      // verify the owner
-      for (int i = 0; i < count; i++) {
-        assertTrue(rootFs.exists(dsts[i]));
-        assertTrue(
-            "user1".equals(rootFs.getFileStatus(dsts[i]).getOwner()));
-        assertTrue(
-            "group2".equals(rootFs.getFileStatus(dsts[i]).getGroup()));
-      }
-    } catch (AccessControlException ace) {
-      throw ace;
-    } finally {
-      if (rootFs != null) {
-        rootFs.close();
-      }
-      if (cluster != null) {
-        cluster.shutdown();
-      }
-    }
-  }
-
-  static void checkAccessPermissions(FileStatus stat, FsAction mode)
-      throws IOException {
-    checkAccessPermissions(UserGroupInformation.getCurrentUser(), stat, mode);
-  }
-
-  static void checkAccessPermissions(final UserGroupInformation ugi,
-      FileStatus stat, FsAction mode) throws IOException {
-    FsPermission perm = stat.getPermission();
-    String user = ugi.getShortUserName();
-    List<String> groups = Arrays.asList(ugi.getGroupNames());
-
-    if (user.equals(stat.getOwner())) {
-      if (perm.getUserAction().implies(mode)) {
-        return;
-      }
-    } else if (groups.contains(stat.getGroup())) {
-      if (perm.getGroupAction().implies(mode)) {
-        return;
-      }
-    } else {
-      if (perm.getOtherAction().implies(mode)) {
-        return;
-      }
-    }
-    throw new AccessControlException(String.format(
-        "Permission denied: user=%s, path=\"%s\":%s:%s:%s%s", user, stat
-            .getPath(), stat.getOwner(), stat.getGroup(),
-        stat.isDirectory() ? "d" : "-", perm));
-  }
-
   @Test(timeout = 60000)
-  public void testAsyncAPIWithException() throws Exception {
+  public void testAsyncRenameWithException() throws Exception {
     Configuration conf = new HdfsConfiguration();
     String group1 = "group1";
     String group2 = "group2";
@@ -489,9 +286,9 @@ public class TestAsyncDFSRename {
     conf.setBoolean(DFSConfigKeys.DFS_PERMISSIONS_ENABLED_KEY, true);
 
     // create fake mapping for the groups
-    Map<String, String[]> u2gMap = new HashMap<String, String[]>(1);
-    u2gMap.put(user1, new String[] {group1, group2});
-    DFSTestUtil.updateConfWithFakeGroupMapping(conf, u2gMap);
+    Map<String, String[]> u2g_map = new HashMap<String, String[]>(1);
+    u2g_map.put(user1, new String[] { group1, group2 });
+    DFSTestUtil.updateConfWithFakeGroupMapping(conf, u2g_map);
 
     // Initiate all four users
     ugi1 = UserGroupInformation.createUserForTesting(user1, new String[] {
@@ -502,7 +299,7 @@ public class TestAsyncDFSRename {
     cluster.waitActive();
 
     FileSystem rootFs = FileSystem.get(conf);
-    final Path renameDir = new Path("/test/async_api_exception/");
+    final Path renameDir = new Path("/test/async_rename_exception/");
     final Path src = new Path(renameDir, "src");
     final Path dst = new Path(renameDir, "dst");
     rootFs.mkdirs(src);
@@ -515,33 +312,11 @@ public class TestAsyncDFSRename {
           }
         });
 
-    Future<Void> retFuture;
-    try {
-      retFuture = adfs.rename(src, dst, Rename.OVERWRITE);
-      retFuture.get();
-    } catch (ExecutionException e) {
-      checkPermissionDenied(e, src, user1);
-      assertTrue("Permission denied messages must carry the path parent", e
-          .getMessage().contains(src.getParent().toUri().getPath()));
-    }
-
-    FsPermission fsPerm = new FsPermission(permGenerator.next());
-    try {
-      retFuture = adfs.setPermission(src, fsPerm);
-      retFuture.get();
-    } catch (ExecutionException e) {
-      checkPermissionDenied(e, src, user1);
-      assertTrue("Permission denied messages must carry the name of the path",
-          e.getMessage().contains(src.getName()));
-    }
-
     try {
-      retFuture = adfs.setOwner(src, "user1", "group2");
-      retFuture.get();
+      Future<Void> returnFuture = adfs.rename(src, dst, Rename.OVERWRITE);
+      returnFuture.get();
     } catch (ExecutionException e) {
       checkPermissionDenied(e, src, user1);
-      assertTrue("Permission denied messages must carry the name of the path",
-          e.getMessage().contains(src.getName()));
     } finally {
       if (rootFs != null) {
         rootFs.close();
@@ -559,5 +334,7 @@ public class TestAsyncDFSRename {
         e.getMessage().contains("AccessControlException"));
     assertTrue("Permission denied messages must carry the username", e
         .getMessage().contains(user));
+    assertTrue("Permission denied messages must carry the path parent", e
+        .getMessage().contains(dir.getParent().toUri().getPath()));
   }
 }
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/hadoop/blob/2529cabf/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDFSPermission.java
----------------------------------------------------------------------
diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDFSPermission.java
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDFSPermission.java
index 66a0380..aa204cd 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDFSPermission.java
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDFSPermission.java
@@ -196,35 +196,22 @@ public class TestDFSPermission {
     return fs.getFileStatus(path).getPermission().toShort();
   }
 
-  private void create(OpType op, Path name) throws IOException {
-    create(fs, conf, op, name);
-  }
-
   /* create a file/directory with the default umask and permission */
-  static void create(final FileSystem fs, final Configuration fsConf,
-      OpType op, Path name) throws IOException {
-    create(fs, fsConf, op, name, DEFAULT_UMASK, new FsPermission(
-        DEFAULT_PERMISSION));
-  }
-
-  private void create(OpType op, Path name, short umask,
-      FsPermission permission)
-      throws IOException {
-    create(fs, conf, op, name, umask, permission);
+  private void create(OpType op, Path name) throws IOException {
+    create(op, name, DEFAULT_UMASK, new FsPermission(DEFAULT_PERMISSION));
   }
 
   /* create a file/directory with the given umask and permission */
-  static void create(final FileSystem fs, final Configuration fsConf,
-      OpType op, Path name, short umask, FsPermission permission)
-      throws IOException {
+  private void create(OpType op, Path name, short umask, 
+      FsPermission permission) throws IOException {
     // set umask in configuration, converting to padded octal
-    fsConf.set(FsPermission.UMASK_LABEL, String.format("%1$03o", umask));
+    conf.set(FsPermission.UMASK_LABEL, String.format("%1$03o", umask));
 
     // create the file/directory
     switch (op) {
     case CREATE:
       FSDataOutputStream out = fs.create(name, permission, true, 
-          fsConf.getInt(CommonConfigurationKeys.IO_FILE_BUFFER_SIZE_KEY, 4096),
+          conf.getInt(CommonConfigurationKeys.IO_FILE_BUFFER_SIZE_KEY, 4096),
           fs.getDefaultReplication(name), fs.getDefaultBlockSize(name), null);
       out.close();
       break;
@@ -372,7 +359,7 @@ public class TestDFSPermission {
   final static private String DIR_NAME = "dir";
   final static private String FILE_DIR_NAME = "filedir";
 
-  enum OpType {CREATE, MKDIRS, OPEN, SET_REPLICATION,
+  private enum OpType {CREATE, MKDIRS, OPEN, SET_REPLICATION,
     GET_FILEINFO, IS_DIR, EXISTS, GET_CONTENT_LENGTH, LIST, RENAME, DELETE
   };
 
@@ -628,7 +615,7 @@ public class TestDFSPermission {
   /* A random permission generator that guarantees that each permission
    * value is generated only once.
    */
-  static class PermissionGenerator {
+  static private class PermissionGenerator {
     private final Random r;
     private final short[] permissions = new short[MAX_PERMISSION + 1];
     private int numLeft = MAX_PERMISSION + 1;


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