Merge trunk into auto-HA branch

Resolved some trivial conflicts in NNHAServiceTarget


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/HDFS-3042@1309576 13f79535-47bb-0310-9956-ffa450edef68

hadoop-common-project/hadoop-common/CHANGES.txt

@@ -245,6 +245,8 @@ Release 2.0.0 - UNRELEASED
     HADOOP-8242. AbstractDelegationTokenIdentifier: add getter methods
     for owner and realuser. (Colin Patrick McCabe via eli)
 
+    HADOOP-8007. Use substitution tokens for fencing argument (todd)
+
   OPTIMIZATIONS
 
   BUG FIXES
@@ -381,6 +383,9 @@ Release 0.23.3 - UNRELEASED
 
   BUG FIXES
 
+    HADOOP-8088. User-group mapping cache incorrectly does negative caching on
+    transient failures (Khiwal Lee via bobby)
+
 Release 0.23.2 - UNRELEASED 
 
   INCOMPATIBLE CHANGES
@@ -476,9 +481,6 @@ Release 0.23.2 - UNRELEASED
     HADOOP-8176.  Disambiguate the destination of FsShell copies (Daryn Sharp
     via bobby)
 
-    HADOOP-8088. User-group mapping cache incorrectly does negative caching on
-    transient failures (Khiwal Lee via bobby)
-
     HADOOP-8208. Disallow self failover. (eli)
 
 Release 0.23.1 - 2012-02-17 

hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ha/HAServiceTarget.java

@@ -19,6 +19,7 @@
 
 import java.io.IOException;
 import java.net.InetSocketAddress;
+import java.util.Map;
 
 import javax.net.SocketFactory;
 
@@ -29,6 +30,8 @@
 import org.apache.hadoop.ha.protocolPB.HAServiceProtocolClientSideTranslatorPB;
 import org.apache.hadoop.net.NetUtils;
 
+import com.google.common.collect.Maps;
+
 /**
  * Represents a target of the client side HA administration commands.
  */
@@ -36,6 +39,10 @@
 @InterfaceStability.Evolving
 public abstract class HAServiceTarget {
 
+  private static final String HOST_SUBST_KEY = "host";
+  private static final String PORT_SUBST_KEY = "port";
+  private static final String ADDRESS_SUBST_KEY = "address";
+
   /**
    * @return the IPC address of the target node.
    */
@@ -68,4 +75,28 @@ public HAServiceProtocol getProxy(Configuration conf, int timeoutMs)
         getAddress(),
         confCopy, factory, timeoutMs);
   }
+  
+  public final Map<String, String> getFencingParameters() {
+    Map<String, String> ret = Maps.newHashMap();
+    addFencingParameters(ret);
+    return ret;
+  }
+  
+  /**
+   * Hook to allow subclasses to add any parameters they would like to
+   * expose to fencing implementations/scripts. Fencing methods are free
+   * to use this map as they see fit -- notably, the shell script
+   * implementation takes each entry, prepends 'target_', substitutes
+   * '_' for '.', and adds it to the environment of the script.
+   *
+   * Subclass implementations should be sure to delegate to the superclass
+   * implementation as well as adding their own keys.
+   *
+   * @param ret map which can be mutated to pass parameters to the fencer
+   */
+  protected void addFencingParameters(Map<String, String> ret) {
+    ret.put(ADDRESS_SUBST_KEY, String.valueOf(getAddress()));
+    ret.put(HOST_SUBST_KEY, getAddress().getHostName());
+    ret.put(PORT_SUBST_KEY, String.valueOf(getAddress().getPort()));
+  }
 }

hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ha/ShellCommandFencer.java

@@ -19,16 +19,11 @@
 
 import java.io.IOException;
 import java.lang.reflect.Field;
-import java.net.InetSocketAddress;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.List;
 import java.util.Map;
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.conf.Configured;
-import org.apache.hadoop.util.StringUtils;
 
 import com.google.common.annotations.VisibleForTesting;
 
@@ -60,6 +55,9 @@ public class ShellCommandFencer
 
   /** Length at which to abbreviate command in long messages */
   private static final int ABBREV_LENGTH = 20;
+
+  /** Prefix for target parameters added to the environment */
+  private static final String TARGET_PREFIX = "target_";
   
   @VisibleForTesting
   static Log LOG = LogFactory.getLog(
@@ -76,19 +74,10 @@ public void checkArgs(String args) throws BadFencingConfigurationException {
 
   @Override
   public boolean tryFence(HAServiceTarget target, String cmd) {
-    InetSocketAddress serviceAddr = target.getAddress();
-    List<String> cmdList = Arrays.asList(cmd.split("\\s+"));
-
-    // Create arg list with service as the first argument
-    List<String> argList = new ArrayList<String>();
-    argList.add(cmdList.get(0));
-    argList.add(serviceAddr.getHostName() + ":" + serviceAddr.getPort());
-    argList.addAll(cmdList.subList(1, cmdList.size()));
-    String cmdWithSvc = StringUtils.join(" ", argList);
-
     ProcessBuilder builder = new ProcessBuilder(
-        "bash", "-e", "-c", cmdWithSvc);
+        "bash", "-e", "-c", cmd);
     setConfAsEnvVars(builder.environment());
+    addTargetInfoAsEnvVars(target, builder.environment());
 
     Process p;
     try {
@@ -185,4 +174,21 @@ private void setConfAsEnvVars(Map<String, String> env) {
       env.put(pair.getKey().replace('.', '_'), pair.getValue());
     }
   }
-}
+
+  /**
+   * Add information about the target to the the environment of the
+   * subprocess.
+   * 
+   * @param target
+   * @param environment
+   */
+  private void addTargetInfoAsEnvVars(HAServiceTarget target,
+      Map<String, String> environment) {
+    for (Map.Entry<String, String> e :
+         target.getFencingParameters().entrySet()) {
+      String key = TARGET_PREFIX + e.getKey();
+      key = key.replace('.', '_');
+      environment.put(key, e.getValue());
+    }
+  }
+}

hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/ha/TestShellCommandFencer.java

@@ -103,7 +103,7 @@ public void testCheckParensNoArgs() {
   public void testStdoutLogging() {
     assertTrue(fencer.tryFence(TEST_TARGET, "echo hello"));
     Mockito.verify(ShellCommandFencer.LOG).info(
-        Mockito.endsWith("echo hello: host:1234 hello"));
+        Mockito.endsWith("echo hello: hello"));
   }
    
   /**
@@ -114,7 +114,7 @@ public void testStdoutLogging() {
   public void testStderrLogging() {
     assertTrue(fencer.tryFence(TEST_TARGET, "echo hello >&2"));
     Mockito.verify(ShellCommandFencer.LOG).warn(
-        Mockito.endsWith("echo hello >&2: host:1234 hello"));
+        Mockito.endsWith("echo hello >&2: hello"));
   }
 
   /**
@@ -125,8 +125,20 @@ public void testStderrLogging() {
   public void testConfAsEnvironment() {
     fencer.tryFence(TEST_TARGET, "echo $in_fencing_tests");
     Mockito.verify(ShellCommandFencer.LOG).info(
-        Mockito.endsWith("echo $in...ing_tests: host:1234 yessir"));
+        Mockito.endsWith("echo $in...ing_tests: yessir"));
   }
+  
+  /**
+   * Verify that information about the fencing target gets passed as
+   * environment variables to the fencer.
+   */
+  @Test
+  public void testTargetAsEnvironment() {
+    fencer.tryFence(TEST_TARGET, "echo $target_host $target_port $target_address");
+    Mockito.verify(ShellCommandFencer.LOG).info(
+        Mockito.endsWith("echo $ta...t_address: host 1234 host:1234"));
+  }
+
 
   /**
    * Test that we properly close off our input to the subprocess

hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt

@@ -22,9 +22,6 @@ Trunk (unreleased changes)
 
     HDFS-2572. Remove unnecessary double-check in DN#getHostName. (harsh)
 
-    HDFS-2564. Cleanup unnecessary exceptions thrown and unnecessary casts.
-    (Hari Mankude via eli)
-
     HDFS-2857. Cleanup BlockInfo class. (suresh)
 
     HDFS-2786. Fix host-based token incompatibilities in DFSUtil. (Kihwal Lee
@@ -185,6 +182,8 @@ Release 2.0.0 - UNRELEASED
     HDFS-3148. The client should be able to use multiple local interfaces
     for data transfer. (eli)
 
+    HDFS-3000. Add a public API for setting quotas. (atm)
+
   IMPROVEMENTS
 
     HDFS-2018. Move all journal stream management code into one place.
@@ -306,6 +305,17 @@ Release 2.0.0 - UNRELEASED
 
     HDFS-3120. Enable hsync and hflush by default. (eli)
 
+    HDFS-3187. Upgrade guava to 11.0.2 (todd)
+
+    HDFS-3168. Remove unnecessary "throw IOException" and change fields to
+    final in FSNamesystem and BlockManager.  (szetszwo)
+
+    HDFS-2564. Cleanup unnecessary exceptions thrown and unnecessary casts.
+    (Hari Mankude via eli)
+
+    HDFS-3084. FenceMethod.tryFence() and ShellCommandFencer should pass
+    namenodeId as well as host:port (todd)
+
   OPTIMIZATIONS
 
     HDFS-3024. Improve performance of stringification in addStoredBlock (todd)

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSUtil.java

@@ -1026,13 +1026,7 @@ public static String getNamenodeServiceAddr(final Configuration conf,
       String nsId, String nnId) {
 
     if (nsId == null) {
-      Collection<String> nsIds = getNameServiceIds(conf);
+      nsId = getOnlyNameServiceIdOrNull(conf);
-      if (1 == nsIds.size()) {
-        nsId = nsIds.toArray(new String[1])[0];
-      } else {
-        // No nameservice ID was given and more than one is configured
-        return null;
-      }
     }
 
     String serviceAddrKey = concatSuffixes(
@@ -1047,4 +1041,18 @@ public static String getNamenodeServiceAddr(final Configuration conf,
     }
     return serviceRpcAddr;
   }
+
+  /**
+   * If the configuration refers to only a single nameservice, return the
+   * name of that nameservice. If it refers to 0 or more than 1, return null.
+   */
+  public static String getOnlyNameServiceIdOrNull(Configuration conf) {
+    Collection<String> nsIds = getNameServiceIds(conf);
+    if (1 == nsIds.size()) {
+      return nsIds.toArray(new String[1])[0];
+    } else {
+      // No nameservice ID was given and more than one is configured
+      return null;
+    }
+  }
 }

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/client/HdfsAdmin.java

@@ -0,0 +1,108 @@
+/**
+ * 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.hdfs.client;
+
+import java.io.IOException;
+import java.net.URI;
+
+import org.apache.hadoop.classification.InterfaceAudience;
+import org.apache.hadoop.classification.InterfaceStability;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.hdfs.DistributedFileSystem;
+import org.apache.hadoop.hdfs.protocol.HdfsConstants;
+import org.apache.hadoop.hdfs.tools.DFSAdmin;
+
+/**
+ * The public API for performing administrative functions on HDFS. Those writing
+ * applications against HDFS should prefer this interface to directly accessing
+ * functionality in DistributedFileSystem or DFSClient.
+ * 
+ * Note that this is distinct from the similarly-named {@link DFSAdmin}, which
+ * is a class that provides the functionality for the CLI `hdfs dfsadmin ...'
+ * commands.
+ */
+@InterfaceAudience.Public
+@InterfaceStability.Evolving
+public class HdfsAdmin {
+  
+  private DistributedFileSystem dfs;
+  
+  /**
+   * Create a new HdfsAdmin client.
+   * 
+   * @param uri the unique URI of the HDFS file system to administer
+   * @param conf configuration
+   * @throws IOException in the event the file system could not be created
+   */
+  public HdfsAdmin(URI uri, Configuration conf) throws IOException {
+    FileSystem fs = FileSystem.get(uri, conf);
+    if (!(fs instanceof DistributedFileSystem)) {
+      throw new IllegalArgumentException("'" + uri + "' is not an HDFS URI.");
+    } else {
+      dfs = (DistributedFileSystem)fs;
+    }
+  }
+  
+  /**
+   * Set the namespace quota (count of files, directories, and sym links) for a
+   * directory.
+   * 
+   * @param src the path to set the quota for
+   * @param quota the value to set for the quota
+   * @throws IOException in the event of error
+   */
+  public void setQuota(Path src, long quota) throws IOException {
+    dfs.setQuota(src, quota, HdfsConstants.QUOTA_DONT_SET);
+  }
+  
+  /**
+   * Clear the namespace quota (count of files, directories and sym links) for a
+   * directory.
+   * 
+   * @param src the path to clear the quota of
+   * @throws IOException in the event of error
+   */
+  public void clearQuota(Path src) throws IOException {
+    dfs.setQuota(src, HdfsConstants.QUOTA_RESET, HdfsConstants.QUOTA_DONT_SET);
+  }
+  
+  /**
+   * Set the disk space quota (size of files) for a directory. Note that
+   * directories and sym links do not occupy disk space.
+   * 
+   * @param src the path to set the space quota of
+   * @param spaceQuota the value to set for the space quota
+   * @throws IOException in the event of error
+   */
+  public void setSpaceQuota(Path src, long spaceQuota) throws IOException {
+    dfs.setQuota(src, HdfsConstants.QUOTA_DONT_SET, spaceQuota);
+  }
+  
+  /**
+   * Clear the disk space quota (size of files) for a directory. Note that
+   * directories and sym links do not occupy disk space.
+   * 
+   * @param src the path to clear the space quota of
+   * @throws IOException in the event of error
+   */
+  public void clearSpaceQuota(Path src) throws IOException {
+    dfs.setQuota(src, HdfsConstants.QUOTA_DONT_SET, HdfsConstants.QUOTA_RESET);
+  }
+}

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockManager.java

@@ -253,9 +253,9 @@ public BlockManager(final Namesystem namesystem, final FSClusterStats stats,
     this.replicationRecheckInterval = 
       conf.getInt(DFSConfigKeys.DFS_NAMENODE_REPLICATION_INTERVAL_KEY, 
                   DFSConfigKeys.DFS_NAMENODE_REPLICATION_INTERVAL_DEFAULT) * 1000L;
-    LOG.info("defaultReplication = " + defaultReplication);
+    LOG.info("defaultReplication         = " + defaultReplication);
-    LOG.info("maxReplication     = " + maxReplication);
+    LOG.info("maxReplication             = " + maxReplication);
-    LOG.info("minReplication     = " + minReplication);
+    LOG.info("minReplication             = " + minReplication);
     LOG.info("maxReplicationStreams      = " + maxReplicationStreams);
     LOG.info("shouldCheckForEnoughRacks  = " + shouldCheckForEnoughRacks);
     LOG.info("replicationRecheckInterval = " + replicationRecheckInterval);
@@ -1030,7 +1030,7 @@ int computeInvalidateWork(int nodesToProcess) {
    *
    * @return number of blocks scheduled for replication during this iteration.
    */
-  int computeReplicationWork(int blocksToProcess) throws IOException {
+  int computeReplicationWork(int blocksToProcess) {
     List<List<Block>> blocksToReplicate = null;
     namesystem.writeLock();
     try {
@@ -2174,7 +2174,7 @@ private MisReplicationResult processMisReplicatedBlock(BlockInfo block) {
   
   /** Set replication for the blocks. */
   public void setReplication(final short oldRepl, final short newRepl,
-      final String src, final Block... blocks) throws IOException {
+      final String src, final Block... blocks) {
     if (newRepl == oldRepl) {
       return;
     }
@@ -2937,8 +2937,6 @@ public void run() {
         } catch (InterruptedException ie) {
           LOG.warn("ReplicationMonitor thread received InterruptedException.", ie);
           break;
-        } catch (IOException ie) {
-          LOG.warn("ReplicationMonitor thread received exception. " , ie);
         } catch (Throwable t) {
           LOG.warn("ReplicationMonitor thread received Runtime exception. ", t);
           Runtime.getRuntime().exit(-1);
@@ -2956,14 +2954,14 @@ public void run() {
    * @return number of blocks scheduled for replication or removal.
    * @throws IOException
    */
-  int computeDatanodeWork() throws IOException {
+  int computeDatanodeWork() {
-    int workFound = 0;
     // Blocks should not be replicated or removed if in safe mode.
     // It's OK to check safe mode here w/o holding lock, in the worst
     // case extra replications will be scheduled, and these will get
     // fixed up later.
-    if (namesystem.isInSafeMode())
+    if (namesystem.isInSafeMode()) {
-      return workFound;
+      return 0;
+    }
 
     final int numlive = heartbeatManager.getLiveDatanodeCount();
     final int blocksToProcess = numlive
@@ -2971,7 +2969,7 @@ int computeDatanodeWork() throws IOException {
     final int nodesToProcess = (int) Math.ceil(numlive
         * ReplicationMonitor.INVALIDATE_WORK_PCT_PER_ITERATION / 100.0);
 
-    workFound = this.computeReplicationWork(blocksToProcess);
+    int workFound = this.computeReplicationWork(blocksToProcess);
 
     // Update counters
     namesystem.writeLock();

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java

@@ -25,15 +25,17 @@
 import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_BYTES_PER_CHECKSUM_KEY;
 import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_CLIENT_WRITE_PACKET_SIZE_DEFAULT;
 import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_CLIENT_WRITE_PACKET_SIZE_KEY;
+import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_HA_STANDBY_CHECKPOINTS_DEFAULT;
+import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_HA_STANDBY_CHECKPOINTS_KEY;
 import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_NAMENODE_ACCESSTIME_PRECISION_KEY;
 import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_NAMENODE_DELEGATION_KEY_UPDATE_INTERVAL_DEFAULT;
 import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_NAMENODE_DELEGATION_KEY_UPDATE_INTERVAL_KEY;
+import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_NAMENODE_DELEGATION_TOKEN_ALWAYS_USE_DEFAULT;
+import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_NAMENODE_DELEGATION_TOKEN_ALWAYS_USE_KEY;
 import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_NAMENODE_DELEGATION_TOKEN_MAX_LIFETIME_DEFAULT;
 import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_NAMENODE_DELEGATION_TOKEN_MAX_LIFETIME_KEY;
 import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_NAMENODE_DELEGATION_TOKEN_RENEW_INTERVAL_DEFAULT;
 import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_NAMENODE_DELEGATION_TOKEN_RENEW_INTERVAL_KEY;
-import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_NAMENODE_DELEGATION_TOKEN_ALWAYS_USE_KEY;
-import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_NAMENODE_DELEGATION_TOKEN_ALWAYS_USE_DEFAULT;
 import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_NAMENODE_EDITS_DIR_KEY;
 import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_NAMENODE_EDITS_DIR_REQUIRED_KEY;
 import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_NAMENODE_MAX_OBJECTS_DEFAULT;
@@ -49,15 +51,13 @@
 import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_NAMENODE_SAFEMODE_MIN_DATANODES_KEY;
 import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_NAMENODE_SAFEMODE_THRESHOLD_PCT_DEFAULT;
 import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_NAMENODE_SAFEMODE_THRESHOLD_PCT_KEY;
-import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_HA_STANDBY_CHECKPOINTS_DEFAULT;
-import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_HA_STANDBY_CHECKPOINTS_KEY;
 import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_NAMENODE_SHARED_EDITS_DIR_KEY;
 import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_PERMISSIONS_ENABLED_DEFAULT;
 import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_PERMISSIONS_ENABLED_KEY;
-import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_PERSIST_BLOCKS_KEY;
-import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_PERSIST_BLOCKS_DEFAULT;
 import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_PERMISSIONS_SUPERUSERGROUP_DEFAULT;
 import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_PERMISSIONS_SUPERUSERGROUP_KEY;
+import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_PERSIST_BLOCKS_DEFAULT;
+import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_PERSIST_BLOCKS_KEY;
 import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_REPLICATION_DEFAULT;
 import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_REPLICATION_KEY;
 import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_SUPPORT_APPEND_DEFAULT;
@@ -150,9 +150,9 @@
 import org.apache.hadoop.hdfs.server.common.HdfsServerConstants.BlockUCState;
 import org.apache.hadoop.hdfs.server.common.HdfsServerConstants.NamenodeRole;
 import org.apache.hadoop.hdfs.server.common.HdfsServerConstants.StartupOption;
+import org.apache.hadoop.hdfs.server.common.Storage;
 import org.apache.hadoop.hdfs.server.common.Storage.StorageDirType;
 import org.apache.hadoop.hdfs.server.common.Storage.StorageDirectory;
-import org.apache.hadoop.hdfs.server.common.Storage;
 import org.apache.hadoop.hdfs.server.common.UpgradeStatusReport;
 import org.apache.hadoop.hdfs.server.common.Util;
 import org.apache.hadoop.hdfs.server.namenode.LeaseManager.Lease;
@@ -260,30 +260,28 @@ private static final void logAuditEvent(UserGroupInformation ugi,
 
   static final int DEFAULT_MAX_CORRUPT_FILEBLOCKS_RETURNED = 100;
   static int BLOCK_DELETION_INCREMENT = 1000;
-  private boolean isPermissionEnabled;
+  private final boolean isPermissionEnabled;
-  private boolean persistBlocks;
+  private final boolean persistBlocks;
-  private UserGroupInformation fsOwner;
+  private final UserGroupInformation fsOwner;
-  private String supergroup;
+  private final String supergroup;
-  private boolean standbyShouldCheckpoint;
+  private final boolean standbyShouldCheckpoint;
   
   // Scan interval is not configurable.
   private static final long DELEGATION_TOKEN_REMOVER_SCAN_INTERVAL =
     TimeUnit.MILLISECONDS.convert(1, TimeUnit.HOURS);
-  private DelegationTokenSecretManager dtSecretManager;
+  private final DelegationTokenSecretManager dtSecretManager;
-  private boolean alwaysUseDelegationTokensForTests;
+  private final boolean alwaysUseDelegationTokensForTests;
   
 
-  //
+  /** The namespace tree. */
-  // Stores the correct file name hierarchy
-  //
   FSDirectory dir;
-  private BlockManager blockManager;
+  private final BlockManager blockManager;
-  private DatanodeStatistics datanodeStatistics;
+  private final DatanodeStatistics datanodeStatistics;
 
   // Block pool ID used by this namenode
   private String blockPoolId;
 
-  LeaseManager leaseManager = new LeaseManager(this); 
+  final LeaseManager leaseManager = new LeaseManager(this); 
 
   Daemon smmthread = null;  // SafeModeMonitor thread
   
@@ -291,23 +289,23 @@ private static final void logAuditEvent(UserGroupInformation ugi,
 
   private volatile boolean hasResourcesAvailable = false;
   private volatile boolean fsRunning = true;
-  long systemStart = 0;
+  
+  /** The start time of the namesystem. */
+  private final long startTime = now();
 
-  //resourceRecheckInterval is how often namenode checks for the disk space availability
+  /** The interval of namenode checking for the disk space availability */
-  private long resourceRecheckInterval;
+  private final long resourceRecheckInterval;
 
   // The actual resource checker instance.
   NameNodeResourceChecker nnResourceChecker;
 
-  private FsServerDefaults serverDefaults;
+  private final FsServerDefaults serverDefaults;
-
+  private final boolean supportAppends;
-  private boolean supportAppends;
+  private final ReplaceDatanodeOnFailure dtpReplaceDatanodeOnFailure;
-  private ReplaceDatanodeOnFailure dtpReplaceDatanodeOnFailure = 
-      ReplaceDatanodeOnFailure.DEFAULT;
 
   private volatile SafeModeInfo safeMode;  // safe mode information
 
-  private long maxFsObjects = 0;          // maximum number of fs objects
+  private final long maxFsObjects;          // maximum number of fs objects
 
   /**
    * The global generation stamp for this file system. 
@@ -315,10 +313,10 @@ private static final void logAuditEvent(UserGroupInformation ugi,
   private final GenerationStamp generationStamp = new GenerationStamp();
 
   // precision of access times.
-  private long accessTimePrecision = 0;
+  private final long accessTimePrecision;
 
-  // lock to protect FSNamesystem.
+  /** Lock to protect FSNamesystem. */
-  private ReentrantReadWriteLock fsLock;
+  private ReentrantReadWriteLock fsLock = new ReentrantReadWriteLock(true);
 
   /**
    * Used when this NN is in standby state to read from the shared edit log.
@@ -336,9 +334,7 @@ private static final void logAuditEvent(UserGroupInformation ugi,
    */
   private HAContext haContext;
 
-  private boolean haEnabled;
+  private final boolean haEnabled;
-
-  private final Configuration conf;
     
   /**
    * Instantiates an FSNamesystem loaded from the image and edits
@@ -390,9 +386,71 @@ public static FSNamesystem loadFromDisk(Configuration conf)
    * @throws IOException on bad configuration
    */
   FSNamesystem(Configuration conf, FSImage fsImage) throws IOException {
-    this.conf = conf;
     try {
-      initialize(conf, fsImage);
+      resourceRecheckInterval = conf.getLong(
+          DFS_NAMENODE_RESOURCE_CHECK_INTERVAL_KEY,
+          DFS_NAMENODE_RESOURCE_CHECK_INTERVAL_DEFAULT);
+
+      this.blockManager = new BlockManager(this, this, conf);
+      this.datanodeStatistics = blockManager.getDatanodeManager().getDatanodeStatistics();
+
+      this.fsOwner = UserGroupInformation.getCurrentUser();
+      this.supergroup = conf.get(DFS_PERMISSIONS_SUPERUSERGROUP_KEY, 
+                                 DFS_PERMISSIONS_SUPERUSERGROUP_DEFAULT);
+      this.isPermissionEnabled = conf.getBoolean(DFS_PERMISSIONS_ENABLED_KEY,
+                                                 DFS_PERMISSIONS_ENABLED_DEFAULT);
+      LOG.info("fsOwner             = " + fsOwner);
+      LOG.info("supergroup          = " + supergroup);
+      LOG.info("isPermissionEnabled = " + isPermissionEnabled);
+
+      final boolean persistBlocks = conf.getBoolean(DFS_PERSIST_BLOCKS_KEY,
+                                                    DFS_PERSIST_BLOCKS_DEFAULT);
+      // block allocation has to be persisted in HA using a shared edits directory
+      // so that the standby has up-to-date namespace information
+      String nameserviceId = DFSUtil.getNamenodeNameServiceId(conf);
+      this.haEnabled = HAUtil.isHAEnabled(conf, nameserviceId);  
+      this.persistBlocks = persistBlocks || (haEnabled && HAUtil.usesSharedEditsDir(conf));
+      
+      // Sanity check the HA-related config.
+      if (nameserviceId != null) {
+        LOG.info("Determined nameservice ID: " + nameserviceId);
+      }
+      LOG.info("HA Enabled: " + haEnabled);
+      if (!haEnabled && HAUtil.usesSharedEditsDir(conf)) {
+        LOG.warn("Configured NNs:\n" + DFSUtil.nnAddressesAsString(conf));
+        throw new IOException("Invalid configuration: a shared edits dir " +
+            "must not be specified if HA is not enabled.");
+      }
+
+      this.serverDefaults = new FsServerDefaults(
+          conf.getLongBytes(DFS_BLOCK_SIZE_KEY, DFS_BLOCK_SIZE_DEFAULT),
+          conf.getInt(DFS_BYTES_PER_CHECKSUM_KEY, DFS_BYTES_PER_CHECKSUM_DEFAULT),
+          conf.getInt(DFS_CLIENT_WRITE_PACKET_SIZE_KEY, DFS_CLIENT_WRITE_PACKET_SIZE_DEFAULT),
+          (short) conf.getInt(DFS_REPLICATION_KEY, DFS_REPLICATION_DEFAULT),
+          conf.getInt(IO_FILE_BUFFER_SIZE_KEY, IO_FILE_BUFFER_SIZE_DEFAULT));
+      
+      this.maxFsObjects = conf.getLong(DFS_NAMENODE_MAX_OBJECTS_KEY, 
+                                       DFS_NAMENODE_MAX_OBJECTS_DEFAULT);
+
+      this.accessTimePrecision = conf.getLong(DFS_NAMENODE_ACCESSTIME_PRECISION_KEY, 0);
+      this.supportAppends = conf.getBoolean(DFS_SUPPORT_APPEND_KEY, DFS_SUPPORT_APPEND_DEFAULT);
+      LOG.info("Append Enabled: " + haEnabled);
+
+      this.dtpReplaceDatanodeOnFailure = ReplaceDatanodeOnFailure.get(conf);
+      
+      this.standbyShouldCheckpoint = conf.getBoolean(
+          DFS_HA_STANDBY_CHECKPOINTS_KEY, DFS_HA_STANDBY_CHECKPOINTS_DEFAULT);
+      
+      // For testing purposes, allow the DT secret manager to be started regardless
+      // of whether security is enabled.
+      alwaysUseDelegationTokensForTests = conf.getBoolean(
+          DFS_NAMENODE_DELEGATION_TOKEN_ALWAYS_USE_KEY,
+          DFS_NAMENODE_DELEGATION_TOKEN_ALWAYS_USE_DEFAULT);
+
+      this.dtSecretManager = createDelegationTokenSecretManager(conf);
+      this.dir = new FSDirectory(fsImage, this, conf);
+      this.safeMode = new SafeModeInfo(conf);
+
     } catch(IOException e) {
       LOG.error(getClass().getSimpleName() + " initialization failed.", e);
       close();
@@ -400,24 +458,6 @@ public static FSNamesystem loadFromDisk(Configuration conf)
     }
   }
 
-  /**
-   * Initialize FSNamesystem.
-   */
-  private void initialize(Configuration conf, FSImage fsImage)
-      throws IOException {
-    resourceRecheckInterval = conf.getLong(
-        DFS_NAMENODE_RESOURCE_CHECK_INTERVAL_KEY,
-        DFS_NAMENODE_RESOURCE_CHECK_INTERVAL_DEFAULT);
-    this.systemStart = now();
-    this.blockManager = new BlockManager(this, this, conf);
-    this.datanodeStatistics = blockManager.getDatanodeManager().getDatanodeStatistics();
-    this.fsLock = new ReentrantReadWriteLock(true); // fair locking
-    setConfigurationParameters(conf);
-    dtSecretManager = createDelegationTokenSecretManager(conf);
-    this.dir = new FSDirectory(fsImage, this, conf);
-    this.safeMode = new SafeModeInfo(conf);
-  }
-
   void loadFSImage(StartupOption startOpt, FSImage fsImage, boolean haEnabled)
       throws IOException {
     // format before starting up if requested
@@ -601,13 +641,13 @@ void stopActiveServices() {
   }
   
   /** Start services required in standby state */
-  void startStandbyServices() {
+  void startStandbyServices(final Configuration conf) {
     LOG.info("Starting services required for standby state");
     if (!dir.fsImage.editLog.isOpenForRead()) {
       // During startup, we're already open for read.
       dir.fsImage.editLog.initSharedJournalsForRead();
     }
-    editLogTailer = new EditLogTailer(this);
+    editLogTailer = new EditLogTailer(this, conf);
     editLogTailer.start();
     if (standbyShouldCheckpoint) {
       standbyCheckpointer = new StandbyCheckpointer(conf, this);
@@ -768,10 +808,6 @@ public static List<URI> getSharedEditsDirs(Configuration conf) {
         DFS_NAMENODE_SHARED_EDITS_DIR_KEY);
     return Util.stringCollectionAsURIs(dirNames);
   }
-  
-  public Configuration getConf() {
-    return conf;
-  }
 
   @Override
   public void readLock() {
@@ -806,69 +842,6 @@ public boolean hasReadOrWriteLock() {
     return hasReadLock() || hasWriteLock();
   }
 
-
-  /**
-   * Initializes some of the members from configuration
-   */
-  private void setConfigurationParameters(Configuration conf) 
-                                          throws IOException {
-    fsOwner = UserGroupInformation.getCurrentUser();
-    
-    LOG.info("fsOwner=" + fsOwner);
-
-    this.supergroup = conf.get(DFS_PERMISSIONS_SUPERUSERGROUP_KEY, 
-                               DFS_PERMISSIONS_SUPERUSERGROUP_DEFAULT);
-    this.isPermissionEnabled = conf.getBoolean(DFS_PERMISSIONS_ENABLED_KEY,
-                                               DFS_PERMISSIONS_ENABLED_DEFAULT);
-    LOG.info("supergroup=" + supergroup);
-    LOG.info("isPermissionEnabled=" + isPermissionEnabled);
-
-    this.persistBlocks = conf.getBoolean(DFS_PERSIST_BLOCKS_KEY,
-                                         DFS_PERSIST_BLOCKS_DEFAULT);
-    // block allocation has to be persisted in HA using a shared edits directory
-    // so that the standby has up-to-date namespace information
-    String nameserviceId = DFSUtil.getNamenodeNameServiceId(conf);
-    this.haEnabled = HAUtil.isHAEnabled(conf, nameserviceId);  
-    this.persistBlocks |= haEnabled && HAUtil.usesSharedEditsDir(conf);
-    
-    // Sanity check the HA-related config.
-    if (nameserviceId != null) {
-      LOG.info("Determined nameservice ID: " + nameserviceId);
-    }
-    LOG.info("HA Enabled: " + haEnabled);
-    if (!haEnabled && HAUtil.usesSharedEditsDir(conf)) {
-      LOG.warn("Configured NNs:\n" + DFSUtil.nnAddressesAsString(conf));
-      throw new IOException("Invalid configuration: a shared edits dir " +
-          "must not be specified if HA is not enabled.");
-    }
-
-    this.serverDefaults = new FsServerDefaults(
-        conf.getLongBytes(DFS_BLOCK_SIZE_KEY, DFS_BLOCK_SIZE_DEFAULT),
-        conf.getInt(DFS_BYTES_PER_CHECKSUM_KEY, DFS_BYTES_PER_CHECKSUM_DEFAULT),
-        conf.getInt(DFS_CLIENT_WRITE_PACKET_SIZE_KEY, DFS_CLIENT_WRITE_PACKET_SIZE_DEFAULT),
-        (short) conf.getInt(DFS_REPLICATION_KEY, DFS_REPLICATION_DEFAULT),
-        conf.getInt(IO_FILE_BUFFER_SIZE_KEY, IO_FILE_BUFFER_SIZE_DEFAULT));
-    
-    this.maxFsObjects = conf.getLong(DFS_NAMENODE_MAX_OBJECTS_KEY, 
-                                     DFS_NAMENODE_MAX_OBJECTS_DEFAULT);
-
-    this.accessTimePrecision = conf.getLong(DFS_NAMENODE_ACCESSTIME_PRECISION_KEY, 0);
-    this.supportAppends = conf.getBoolean(DFS_SUPPORT_APPEND_KEY,
-        DFS_SUPPORT_APPEND_DEFAULT);
-
-    this.dtpReplaceDatanodeOnFailure = ReplaceDatanodeOnFailure.get(conf);
-    
-    this.standbyShouldCheckpoint = conf.getBoolean(
-        DFS_HA_STANDBY_CHECKPOINTS_KEY,
-        DFS_HA_STANDBY_CHECKPOINTS_DEFAULT);
-    
-    // For testing purposes, allow the DT secret manager to be started regardless
-    // of whether security is enabled.
-    alwaysUseDelegationTokensForTests = 
-      conf.getBoolean(DFS_NAMENODE_DELEGATION_TOKEN_ALWAYS_USE_KEY,
-          DFS_NAMENODE_DELEGATION_TOKEN_ALWAYS_USE_DEFAULT);
-  }
-
   NamespaceInfo getNamespaceInfo() {
     readLock();
     try {
@@ -2761,7 +2734,7 @@ boolean internalReleaseLease(Lease lease, String src,
   }
 
   private Lease reassignLease(Lease lease, String src, String newHolder,
-      INodeFileUnderConstruction pendingFile) throws IOException {
+      INodeFileUnderConstruction pendingFile) {
     assert hasWriteLock();
     if(newHolder == null)
       return lease;
@@ -3329,7 +3302,7 @@ boolean restoreFailedStorage(String arg) throws AccessControlException {
   }
 
   Date getStartTime() {
-    return new Date(systemStart); 
+    return new Date(startTime); 
   }
     
   void finalizeUpgrade() throws IOException {
@@ -3506,7 +3479,7 @@ private synchronized void leave(boolean checkForUpgrades) {
       if (!isPopulatingReplQueues() && !isInStandbyState()) {
         initializeReplQueues();
       }
-      long timeInSafemode = now() - systemStart;
+      long timeInSafemode = now() - startTime;
       NameNode.stateChangeLog.info("STATE* Leaving safe mode after " 
                                     + timeInSafemode/1000 + " secs.");
       NameNode.getNameNodeMetrics().setSafeModeTime((int) timeInSafemode);
@@ -4876,7 +4849,7 @@ void loadSecretManagerState(DataInputStream in) throws IOException {
    * 
    * @param key new delegation key.
    */
-  public void logUpdateMasterKey(DelegationKey key) throws IOException {
+  public void logUpdateMasterKey(DelegationKey key) {
     
     assert !isInSafeMode() :
       "this should never be called while in safemode, since we stop " +
@@ -4889,7 +4862,7 @@ public void logUpdateMasterKey(DelegationKey key) throws IOException {
   }
   
   private void logReassignLease(String leaseHolder, String src,
-      String newHolder) throws IOException {
+      String newHolder) {
     writeLock();
     try {
       getEditLog().logReassignLease(leaseHolder, src, newHolder);

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/NameNode.java

@@ -1061,7 +1061,7 @@ public void stopActiveServices() throws IOException {
 
     @Override
     public void startStandbyServices() throws IOException {
-      namesystem.startStandbyServices();
+      namesystem.startStandbyServices(conf);
     }
 
     @Override

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/ha/EditLogTailer.java

@@ -61,6 +61,7 @@ public class EditLogTailer {
   
   private final EditLogTailerThread tailerThread;
   
+  private final Configuration conf;
   private final FSNamesystem namesystem;
   private FSEditLog editLog;
   
@@ -98,13 +99,12 @@ public class EditLogTailer {
    */
   private long sleepTimeMs;
   
-  public EditLogTailer(FSNamesystem namesystem) {
+  public EditLogTailer(FSNamesystem namesystem, Configuration conf) {
     this.tailerThread = new EditLogTailerThread();
+    this.conf = conf;
     this.namesystem = namesystem;
     this.editLog = namesystem.getEditLog();
     
-
-    Configuration conf = namesystem.getConf();
     lastLoadTimestamp = now();
 
     logRollPeriodMs = conf.getInt(DFSConfigKeys.DFS_HA_LOGROLL_PERIOD_KEY,
@@ -129,14 +129,12 @@ public EditLogTailer(FSNamesystem namesystem) {
   }
   
   private InetSocketAddress getActiveNodeAddress() {
-    Configuration conf = namesystem.getConf();
     Configuration activeConf = HAUtil.getConfForOtherNode(conf);
     return NameNode.getServiceAddress(activeConf, true);
   }
   
   private NamenodeProtocol getActiveNodeProxy() throws IOException {
     if (cachedActiveProxy == null) {
-      Configuration conf = namesystem.getConf();
       NamenodeProtocolPB proxy = 
         RPC.waitForProxy(NamenodeProtocolPB.class,
             RPC.getProtocolVersion(NamenodeProtocolPB.class), activeAddr, conf);

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/tools/NNHAServiceTarget.java

@@ -18,6 +18,7 @@
 package org.apache.hadoop.hdfs.tools;
 
 import java.net.InetSocketAddress;
+import java.util.Map;
 
 import org.apache.hadoop.classification.InterfaceAudience;
 import org.apache.hadoop.conf.Configuration;
@@ -25,9 +26,12 @@
 import org.apache.hadoop.ha.HAServiceTarget;
 import org.apache.hadoop.ha.NodeFencer;
 import org.apache.hadoop.hdfs.DFSUtil;
+import org.apache.hadoop.hdfs.HdfsConfiguration;
 import org.apache.hadoop.hdfs.server.namenode.NameNode;
 import org.apache.hadoop.net.NetUtils;
 
+import com.google.common.base.Preconditions;
+
 /**
  * One of the NN NameNodes acting as the target of an administrative command
  * (e.g. failover).
@@ -35,16 +39,36 @@
 @InterfaceAudience.Private
 public class NNHAServiceTarget extends HAServiceTarget {
 
+  // Keys added to the fencing script environment
+  private static final String NAMESERVICE_ID_KEY = "nameserviceid";
+  private static final String NAMENODE_ID_KEY = "namenodeid";
+  
   private final InetSocketAddress addr;
   private NodeFencer fencer;
   private BadFencingConfigurationException fenceConfigError;
   private final String nnId;
   private final String nsId;
 
-  public NNHAServiceTarget(Configuration localNNConf,
+  public NNHAServiceTarget(Configuration conf,
       String nsId, String nnId) {
+    Preconditions.checkNotNull(nnId);
+    
+    if (nsId == null) {
+      nsId = DFSUtil.getOnlyNameServiceIdOrNull(conf);
+      if (nsId == null) {
+        throw new IllegalArgumentException(
+            "Unable to determine the nameservice id.");
+      }
+    }
+    assert nsId != null;
+    
+    // Make a copy of the conf, and override configs based on the
+    // target node -- not the node we happen to be running on.
+    HdfsConfiguration targetConf = new HdfsConfiguration(conf);
+    NameNode.initializeGenericKeys(targetConf, nsId, nnId);
+    
     String serviceAddr = 
-      DFSUtil.getNamenodeServiceAddr(localNNConf, nsId, nnId);
+      DFSUtil.getNamenodeServiceAddr(targetConf, nsId, nnId);
     if (serviceAddr == null) {
       throw new IllegalArgumentException(
           "Unable to determine service address for namenode '" + nnId + "'");
@@ -52,7 +76,7 @@ public NNHAServiceTarget(Configuration localNNConf,
     this.addr = NetUtils.createSocketAddr(serviceAddr,
         NameNode.DEFAULT_PORT);
     try {
-      this.fencer = NodeFencer.create(localNNConf);
+      this.fencer = NodeFencer.create(targetConf);
     } catch (BadFencingConfigurationException e) {
       this.fenceConfigError = e;
     }
@@ -96,4 +120,12 @@ public String getNameServiceId() {
   public String getNameNodeId() {
     return this.nnId;
   }
+
+  @Override
+  protected void addFencingParameters(Map<String, String> ret) {
+    super.addFencingParameters(ret);
+    
+    ret.put(NAMESERVICE_ID_KEY, getNameServiceId());
+    ret.put(NAMENODE_ID_KEY, getNameNodeId());
+  }
 }

hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/MiniDFSCluster.java

@@ -731,7 +731,9 @@ private void copyNameDirs(Collection<URI> srcDirs, Collection<URI> dstDirs,
       Preconditions.checkArgument(!dstDir.equals(srcDir));
       File dstDirF = new File(dstDir);
       if (dstDirF.exists()) {
-        Files.deleteRecursively(dstDirF);
+        if (!FileUtil.fullyDelete(dstDirF)) {
+          throw new IOException("Unable to delete: " + dstDirF);
+        }
       }
       LOG.info("Copying namedir from primary node dir "
           + srcDir + " to " + dstDir);

hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDFSUtil.java

@@ -179,6 +179,17 @@ public void testGetNameServiceIds() {
     assertEquals("nn1", it.next().toString());
     assertEquals("nn2", it.next().toString());
   }
+  
+  @Test
+  public void testGetOnlyNameServiceIdOrNull() {
+    HdfsConfiguration conf = new HdfsConfiguration();
+    conf.set(DFS_FEDERATION_NAMESERVICES, "ns1,ns2");
+    assertNull(DFSUtil.getOnlyNameServiceIdOrNull(conf));
+    conf.set(DFS_FEDERATION_NAMESERVICES, "");
+    assertNull(DFSUtil.getOnlyNameServiceIdOrNull(conf));
+    conf.set(DFS_FEDERATION_NAMESERVICES, "ns1");
+    assertEquals("ns1", DFSUtil.getOnlyNameServiceIdOrNull(conf));
+  }
 
   /**
    * Test for {@link DFSUtil#getNNServiceRpcAddresses(Configuration)}

hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestHdfsAdmin.java

@@ -0,0 +1,95 @@
+/**
+ * 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.hdfs;
+
+import static org.junit.Assert.*;
+
+import java.io.IOException;
+import java.net.URI;
+import java.net.URISyntaxException;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.hdfs.client.HdfsAdmin;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+
+public class TestHdfsAdmin {
+  
+  private static final Path TEST_PATH = new Path("/test");
+  private Configuration conf = new Configuration();
+  private MiniDFSCluster cluster;
+  
+  @Before
+  public void setUpCluster() throws IOException {
+    cluster = new MiniDFSCluster.Builder(conf).numDataNodes(0).build();
+  }
+  
+  @After
+  public void shutDownCluster() {
+    if (cluster != null) {
+      cluster.shutdown();
+    }
+  }
+
+  /**
+   * Test that we can set and clear quotas via {@link HdfsAdmin}.
+   */
+  @Test
+  public void testHdfsAdminSetQuota() throws Exception {
+    HdfsAdmin dfsAdmin = new HdfsAdmin(
+        FileSystem.getDefaultUri(conf), conf);
+    FileSystem fs = null;
+    try {
+      fs = FileSystem.get(conf);
+      assertTrue(fs.mkdirs(TEST_PATH));
+      assertEquals(-1, fs.getContentSummary(TEST_PATH).getQuota());
+      assertEquals(-1, fs.getContentSummary(TEST_PATH).getSpaceQuota());
+      
+      dfsAdmin.setSpaceQuota(TEST_PATH, 10);
+      assertEquals(-1, fs.getContentSummary(TEST_PATH).getQuota());
+      assertEquals(10, fs.getContentSummary(TEST_PATH).getSpaceQuota());
+      
+      dfsAdmin.setQuota(TEST_PATH, 10);
+      assertEquals(10, fs.getContentSummary(TEST_PATH).getQuota());
+      assertEquals(10, fs.getContentSummary(TEST_PATH).getSpaceQuota());
+      
+      dfsAdmin.clearSpaceQuota(TEST_PATH);
+      assertEquals(10, fs.getContentSummary(TEST_PATH).getQuota());
+      assertEquals(-1, fs.getContentSummary(TEST_PATH).getSpaceQuota());
+      
+      dfsAdmin.clearQuota(TEST_PATH);
+      assertEquals(-1, fs.getContentSummary(TEST_PATH).getQuota());
+      assertEquals(-1, fs.getContentSummary(TEST_PATH).getSpaceQuota());
+    } finally {
+      if (fs != null) {
+        fs.close();
+      }
+    }
+  }
+  
+  /**
+   * Make sure that a non-HDFS URI throws a helpful error.
+   */
+  @Test(expected = IllegalArgumentException.class)
+  public void testHdfsAdminWithBadUri() throws IOException, URISyntaxException {
+    new HdfsAdmin(new URI("file:///bad-scheme"), conf);
+  }
+}

hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockManagerTestUtil.java

@@ -23,8 +23,8 @@
 import java.util.Iterator;
 import java.util.Set;
 
+import org.apache.hadoop.hdfs.DFSConfigKeys;
 import org.apache.hadoop.hdfs.protocol.Block;
-import org.apache.hadoop.hdfs.server.datanode.DataNode;
 import org.apache.hadoop.hdfs.server.namenode.FSNamesystem;
 import org.apache.hadoop.hdfs.server.namenode.NameNode;
 import org.apache.hadoop.util.Daemon;
@@ -143,8 +143,7 @@ public static int computeInvalidationWork(BlockManager bm) {
    * {@link DFSConfigKeys.DFS_NAMENODE_REPLICATION_MAX_STREAMS_KEY} to
    * a high value to ensure that all work is calculated.
    */
-  public static int computeAllPendingWork(BlockManager bm)
+  public static int computeAllPendingWork(BlockManager bm) {
-    throws IOException {
     int work = computeInvalidationWork(bm);
     work += bm.computeReplicationWork(Integer.MAX_VALUE);
     return work;

hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/FSImageTestUtil.java

@@ -37,6 +37,7 @@
 import org.apache.commons.lang.StringUtils;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
+import org.apache.hadoop.fs.FileUtil;
 import org.apache.hadoop.fs.permission.FsPermission;
 import org.apache.hadoop.fs.permission.PermissionStatus;
 import org.apache.hadoop.hdfs.MiniDFSCluster;
@@ -181,7 +182,9 @@ public static FSImageTransactionalStorageInspector inspectStorageDirectory(
   public static FSEditLog createStandaloneEditLog(File logDir)
       throws IOException {
     assertTrue(logDir.mkdirs() || logDir.exists());
-    Files.deleteDirectoryContents(logDir);
+    if (!FileUtil.fullyDeleteContents(logDir)) {
+      throw new IOException("Unable to delete contents of " + logDir);
+    }
     NNStorage storage = Mockito.mock(NNStorage.class);
     StorageDirectory sd 
       = FSImageTestUtil.mockStorageDirectory(logDir, NameNodeDirType.EDITS);

hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/tools/TestDFSHAAdminMiniCluster.java

@@ -20,6 +20,7 @@
 import static org.junit.Assert.*;
 
 import java.io.ByteArrayOutputStream;
+import java.io.File;
 import java.io.IOException;
 import java.io.PrintStream;
 
@@ -41,6 +42,7 @@
 
 import com.google.common.base.Charsets;
 import com.google.common.base.Joiner;
+import com.google.common.io.Files;
 
 /**
  * Tests for HAAdmin command with {@link MiniDFSCluster} set up in HA mode.
@@ -59,6 +61,8 @@ public class TestDFSHAAdminMiniCluster {
 
   private String errOutput;
 
+  private int nn1Port;
+
   @Before
   public void setup() throws IOException {
     conf = new Configuration();
@@ -69,6 +73,8 @@ public void setup() throws IOException {
     tool.setConf(conf);
     tool.setErrOut(new PrintStream(errOutBytes));
     cluster.waitActive();
+    
+    nn1Port = cluster.getNameNodePort(0);
   }
 
   @After
@@ -124,9 +130,17 @@ public void testTryFailoverToSafeMode() throws Exception {
   public void testFencer() throws Exception { 
     // Test failover with no fencer
     assertEquals(-1, runTool("-failover", "nn1", "nn2"));
-    
+
+    // Set up fencer to write info about the fencing target into a
+    // tmp file, so we can verify that the args were substituted right
+    File tmpFile = File.createTempFile("testFencer", ".txt");
+    tmpFile.deleteOnExit();
+    conf.set(NodeFencer.CONF_METHODS_KEY,
+        "shell(echo -n $target_nameserviceid.$target_namenodeid " +
+        "$target_port $dfs_ha_namenode_id > " +
+        tmpFile.getAbsolutePath() + ")");
+
     // Test failover with fencer
-    conf.set(NodeFencer.CONF_METHODS_KEY, "shell(true)");
     tool.setConf(conf);
     assertEquals(0, runTool("-transitionToActive", "nn1"));
     assertEquals(0, runTool("-failover", "nn1", "nn2"));
@@ -134,21 +148,36 @@ public void testFencer() throws Exception {
     // Test failover with fencer and nameservice
     assertEquals(0, runTool("-ns", "minidfs-ns", "-failover", "nn2", "nn1"));
 
+    // Fencer has not run yet, since none of the above required fencing 
+    assertEquals("", Files.toString(tmpFile, Charsets.UTF_8));
+
     // Test failover with fencer and forcefence option
     assertEquals(0, runTool("-failover", "nn1", "nn2", "--forcefence"));
-      
+    
+    // The fence script should run with the configuration from the target
+    // node, rather than the configuration from the fencing node
+    assertEquals("minidfs-ns.nn1 " + nn1Port + " nn1",
+        Files.toString(tmpFile, Charsets.UTF_8));
+    tmpFile.delete();
+    
     // Test failover with forceactive option
     assertEquals(0, runTool("-failover", "nn2", "nn1", "--forceactive"));
+
+    // Fencing should not occur, since it was graceful
+    assertFalse(tmpFile.exists());
+
           
     // Test failover with not fencer and forcefence option
     conf.unset(NodeFencer.CONF_METHODS_KEY);
     tool.setConf(conf);
     assertEquals(-1, runTool("-failover", "nn1", "nn2", "--forcefence"));
-    
+    assertFalse(tmpFile.exists());
+
     // Test failover with bad fencer and forcefence option
     conf.set(NodeFencer.CONF_METHODS_KEY, "foobar!");
     tool.setConf(conf);
     assertEquals(-1, runTool("-failover", "nn1", "nn2", "--forcefence"));
+    assertFalse(tmpFile.exists());
 
     // Test failover with force fence listed before the other arguments
     conf.set(NodeFencer.CONF_METHODS_KEY, "shell(true)");

hadoop-mapreduce-project/CHANGES.txt

@@ -139,6 +139,8 @@ Release 2.0.0 - UNRELEASED
     MAPREDUCE-3955. Change MR to use ProtobufRpcEngine from hadoop-common
     instead of ProtoOverHadoopRpcEngine. (Jitendra Nath Pandey via sseth)
 
+    MAPREDUCE-4103. Fix HA docs for changes to shell command fencer args (todd)
+
   OPTIMIZATIONS
 
   BUG FIXES
@@ -197,7 +199,9 @@ Release 2.0.0 - UNRELEASED
 
     MAPREDUCE-4095. TestJobInProgress#testLocality uses a bogus topology.
     (Colin Patrick McCabe via eli)
-    
+
+    MAPREDUCE-4098. TestMRApps testSetClasspath fails (tucu)
+ 
 Release 0.23.3 - UNRELEASED
 
   INCOMPATIBLE CHANGES
@@ -240,6 +244,16 @@ Release 0.23.3 - UNRELEASED
     MAPREDUCE-4020. Web services returns incorrect JSON for deep queue tree
     (Anupam Seth via tgraves)
 
+    MAPREDUCE-3672. Killed maps shouldn't be counted towards 
+    JobCounter.NUM_FAILED_MAPS. (Anupam Seth via tgraves)
+
+    MAPREDUCE-3682 Tracker URL says AM tasks run on localhost.
+    (Ravi Prakash via tgraves)
+
+    MAPREDUCE-3082. Archive command take wrong path for input file with current
+    directory (John George via bobby)
+
+    MAPREDUCE-3650. testGetTokensForHftpFS() fails (Ravi Prakash via bobby)
 Release 0.23.2 - UNRELEASED
 
   INCOMPATIBLE CHANGES

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/MRAppMaster.java

@@ -643,7 +643,8 @@ private final class ContainerAllocatorRouter extends AbstractService
     public synchronized void start() {
       if (job.isUber()) {
         this.containerAllocator = new LocalContainerAllocator(
-            this.clientService, this.context);
+            this.clientService, this.context, nmHost, nmPort, nmHttpPort
+            , containerID);
       } else {
         this.containerAllocator = new RMContainerAllocator(
             this.clientService, this.context);

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/job/impl/TaskAttemptImpl.java

@@ -988,6 +988,23 @@ private static JobCounterUpdateEvent createJobCounterUpdateEventTAFailed(
     }
     return jce;
   }
+  
+  private static JobCounterUpdateEvent createJobCounterUpdateEventTAKilled(
+      TaskAttemptImpl taskAttempt) {
+    TaskType taskType = taskAttempt.getID().getTaskId().getTaskType();
+    JobCounterUpdateEvent jce = new JobCounterUpdateEvent(taskAttempt.getID().getTaskId().getJobId());
+    
+    long slotMillisIncrement = computeSlotMillis(taskAttempt);
+    
+    if (taskType == TaskType.MAP) {
+      jce.addCounterUpdate(JobCounter.NUM_KILLED_MAPS, 1);
+      jce.addCounterUpdate(JobCounter.SLOTS_MILLIS_MAPS, slotMillisIncrement);
+    } else {
+      jce.addCounterUpdate(JobCounter.NUM_KILLED_REDUCES, 1);
+      jce.addCounterUpdate(JobCounter.SLOTS_MILLIS_REDUCES, slotMillisIncrement);
+    }
+    return jce;
+  }  
 
   private static
       TaskAttemptUnsuccessfulCompletionEvent
@@ -1214,8 +1231,13 @@ public void transition(TaskAttemptImpl taskAttempt,
         TaskAttemptUnsuccessfulCompletionEvent tauce =
             createTaskAttemptUnsuccessfulCompletionEvent(taskAttempt,
                 finalState);
-        taskAttempt.eventHandler
+        if(finalState == TaskAttemptState.FAILED) {
+          taskAttempt.eventHandler
             .handle(createJobCounterUpdateEventTAFailed(taskAttempt));
+        } else if(finalState == TaskAttemptState.KILLED) {
+          taskAttempt.eventHandler
+          .handle(createJobCounterUpdateEventTAKilled(taskAttempt));
+        }
         taskAttempt.eventHandler.handle(new JobHistoryEvent(
             taskAttempt.attemptId.getTaskId().getJobId(), tauce));
       } else {
@@ -1441,7 +1463,7 @@ public void transition(TaskAttemptImpl taskAttempt,
       taskAttempt.setFinishTime();
       if (taskAttempt.getLaunchTime() != 0) {
         taskAttempt.eventHandler
-            .handle(createJobCounterUpdateEventTAFailed(taskAttempt));
+            .handle(createJobCounterUpdateEventTAKilled(taskAttempt));
         TaskAttemptUnsuccessfulCompletionEvent tauce =
             createTaskAttemptUnsuccessfulCompletionEvent(taskAttempt,
                 TaskAttemptState.KILLED);

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/local/LocalContainerAllocator.java

@@ -65,14 +65,23 @@ public class LocalContainerAllocator extends RMCommunicator
   private AtomicInteger containerCount = new AtomicInteger();
   private long retryInterval;
   private long retrystartTime;
+  private String nmHost;
+  private int nmPort;
+  private int nmHttpPort;
+  private ContainerId containerId;
 
   private final RecordFactory recordFactory =
       RecordFactoryProvider.getRecordFactory(null);
 
   public LocalContainerAllocator(ClientService clientService,
-                                 AppContext context) {
+    AppContext context, String nmHost, int nmPort, int nmHttpPort
+    , ContainerId cId) {
     super(clientService, context);
     this.eventHandler = context.getEventHandler();
+    this.nmHost = nmHost;
+    this.nmPort = nmPort;
+    this.nmHttpPort = nmHttpPort;
+    this.containerId = cId;
   }
 
   @Override
@@ -131,17 +140,17 @@ public void handle(ContainerAllocatorEvent event) {
       LOG.info("Processing the event " + event.toString());
       ContainerId cID = recordFactory.newRecordInstance(ContainerId.class);
       cID.setApplicationAttemptId(applicationAttemptId);
-      // use negative ids to denote that these are local. Need a better way ??
+      // Assign the same container ID as the AM
-      cID.setId((-1) * containerCount.getAndIncrement());
+      cID.setId(this.containerId.getId());
       
       Container container = recordFactory.newRecordInstance(Container.class);
       container.setId(cID);
       NodeId nodeId = Records.newRecord(NodeId.class);
-      nodeId.setHost("localhost");
+      nodeId.setHost(this.nmHost);
-      nodeId.setPort(1234);
+      nodeId.setPort(this.nmPort);
       container.setNodeId(nodeId);
       container.setContainerToken(null);
-      container.setNodeHttpAddress("localhost:8042");
+      container.setNodeHttpAddress(this.nmHost + ":" + this.nmHttpPort);
       // send the container-assigned event to task attempt
 
       if (event.getAttemptID().getTaskId().getTaskType() == TaskType.MAP) {

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-common/src/test/java/org/apache/hadoop/mapreduce/v2/util/TestMRApps.java

@@ -33,6 +33,7 @@
 import org.apache.hadoop.mapreduce.v2.util.MRApps;
 import org.apache.hadoop.yarn.YarnException;
 import org.apache.hadoop.yarn.api.records.ApplicationId;
+import org.apache.hadoop.yarn.conf.YarnConfiguration;
 import org.apache.hadoop.yarn.factory.providers.RecordFactoryProvider;
 
 import org.junit.Test;
@@ -130,15 +131,12 @@ public class TestMRApps {
     Job job = Job.getInstance();
     Map<String, String> environment = new HashMap<String, String>();
     MRApps.setClasspath(environment, job.getConfiguration());
-    assertEquals("$PWD:$HADOOP_CONF_DIR:" +
+    assertTrue(environment.get("CLASSPATH").startsWith("$PWD:"));
-        "$HADOOP_COMMON_HOME/share/hadoop/common/*:" +
+    String confClasspath = job.getConfiguration().get(YarnConfiguration.YARN_APPLICATION_CLASSPATH);
-        "$HADOOP_COMMON_HOME/share/hadoop/common/lib/*:" +
+    if (confClasspath != null) {
-        "$HADOOP_HDFS_HOME/share/hadoop/hdfs/*:" +
+      confClasspath = confClasspath.replaceAll(",\\s*", ":").trim();
-        "$HADOOP_HDFS_HOME/share/hadoop/hdfs/lib/*:" +
+    }
-        "$YARN_HOME/share/hadoop/mapreduce/*:" +
+    assertTrue(environment.get("CLASSPATH").contains(confClasspath));
-        "$YARN_HOME/share/hadoop/mapreduce/lib/*:" +
-        "job.jar:$PWD/*",
-        environment.get("CLASSPATH"));
   }
 
  @Test public void testSetClasspathWithUserPrecendence() {

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/JobCounter.java

@@ -27,6 +27,8 @@
 public enum JobCounter {
   NUM_FAILED_MAPS, 
   NUM_FAILED_REDUCES,
+  NUM_KILLED_MAPS,
+  NUM_KILLED_REDUCES,
   TOTAL_LAUNCHED_MAPS,
   TOTAL_LAUNCHED_REDUCES,
   OTHER_LOCAL_MAPS,

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/resources/org/apache/hadoop/mapreduce/JobCounter.properties

@@ -16,6 +16,8 @@ CounterGroupName=                  Job Counters
 
 NUM_FAILED_MAPS.name=              Failed map tasks
 NUM_FAILED_REDUCES.name=           Failed reduce tasks
+NUM_KILLED_MAPS.name=              Killed map tasks
+NUM_KILLED_REDUCES.name=           Killed reduce tasks
 TOTAL_LAUNCHED_MAPS.name=          Launched map tasks
 TOTAL_LAUNCHED_REDUCES.name=       Launched reduce tasks
 OTHER_LOCAL_MAPS.name=             Other local map tasks

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/test/java/org/apache/hadoop/mapred/TestJobCleanup.java

@@ -195,6 +195,8 @@ private void testFailedJob(String fileName,
     RunningJob job = jobClient.submitJob(jc);
     JobID id = job.getID();
     job.waitForCompletion();
+    Counters counters = job.getCounters();
+    assertTrue("No. of failed maps should be 1",counters.getCounter(JobCounter.NUM_FAILED_MAPS) == 1);
 
     if (fileName != null) {
       Path testFile = new Path(outDir, fileName);
@@ -240,6 +242,9 @@ private void testKilledJob(String fileName,
     job.killJob(); // kill the job
 
     job.waitForCompletion(); // wait for the job to complete
+    
+    counters = job.getCounters();
+    assertTrue("No. of killed maps should be 1", counters.getCounter(JobCounter.NUM_KILLED_MAPS) == 1);
 
     if (fileName != null) {
       Path testFile = new Path(outDir, fileName);

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/test/java/org/apache/hadoop/mapreduce/v2/TestSpeculativeExecution.java

@@ -234,8 +234,10 @@ public void testSpeculativeExecution() throws Exception {
             .getValue());
     Assert.assertEquals(2, counters.findCounter(JobCounter.TOTAL_LAUNCHED_REDUCES)
             .getValue());
-    Assert.assertEquals(1, counters.findCounter(JobCounter.NUM_FAILED_MAPS)
+    Assert.assertEquals(0, counters.findCounter(JobCounter.NUM_FAILED_MAPS)
             .getValue());
+    Assert.assertEquals(1, counters.findCounter(JobCounter.NUM_KILLED_MAPS)
+        .getValue());
 
     /*----------------------------------------------------------------------
      * Test that Reducer speculates if REDUCE_SPECULATIVE is true and

hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-site/src/site/apt/HDFSHighAvailability.apt.vm

@@ -322,13 +322,40 @@ HDFS High Availability
       The string between '(' and ')' is passed directly to a bash shell and may not
       include any closing parentheses.
 
-      When executed, the first argument to the configured script will be the address
-      of the NameNode to be fenced, followed by all arguments specified in the
-      configuration.
-
       The shell command will be run with an environment set up to contain all of the
       current Hadoop configuration variables, with the '_' character replacing any
-      '.' characters in the configuration keys. If the shell command returns an exit
+      '.' characters in the configuration keys. The configuration used has already had
+      any namenode-specific configurations promoted to their generic forms -- for example
+      <<dfs_namenode_rpc-address>> will contain the RPC address of the target node, even
+      though the configuration may specify that variable as
+      <<dfs.namenode.rpc-address.ns1.nn1>>.
+      
+      Additionally, the following variables referring to the target node to be fenced
+      are also available:
+
+*-----------------------:-----------------------------------+
+| $target_host          | hostname of the node to be fenced |
+*-----------------------:-----------------------------------+
+| $target_port          | IPC port of the node to be fenced |
+*-----------------------:-----------------------------------+
+| $target_address       | the above two, combined as host:port |
+*-----------------------:-----------------------------------+
+| $target_nameserviceid | the nameservice ID of the NN to be fenced |
+*-----------------------:-----------------------------------+
+| $target_namenodeid    | the namenode ID of the NN to be fenced |
+*-----------------------:-----------------------------------+
+      
+      These environment variables may also be used as substitutions in the shell
+      command itself. For example:
+
+---
+<property>
+  <name>dfs.ha.fencing.methods</name>
+  <value>shell(/path/to/my/script.sh --nameservice=$target_nameserviceid $target_host:$target_port)</value>
+</property>
+---
+      
+      If the shell command returns an exit
       code of 0, the fencing is determined to be successful. If it returns any other
       exit code, the fencing was not successful and the next fencing method in the
       list will be attempted.

hadoop-mapreduce-project/src/test/mapred/org/apache/hadoop/mapreduce/security/TestTokenCache.java

@@ -321,7 +321,7 @@ public void testGetTokensForHftpFS() throws IOException, URISyntaxException {
     final Token<DelegationTokenIdentifier> t = 
       new Token<DelegationTokenIdentifier>(dtId, dtSecretManager);
 
-    final URI uri = new URI("hftp://host:2222/file1");
+    final URI uri = new URI("hftp://127.0.0.1:2222/file1");
     final String fs_addr = 
       SecurityUtil.buildDTServiceName(uri, NameNode.DEFAULT_PORT);
     t.setService(new Text(fs_addr));

hadoop-project/pom.xml

@@ -253,7 +253,7 @@
       <dependency>
         <groupId>com.google.guava</groupId>
         <artifactId>guava</artifactId>
-        <version>r09</version>
+        <version>11.0.2</version>
       </dependency>
       <dependency>
         <groupId>commons-cli</groupId>

hadoop-tools/hadoop-archives/src/main/java/org/apache/hadoop/tools/HadoopArchives.java

@@ -830,11 +830,18 @@ public int run(String[] args) throws Exception {
         throw new IOException("Parent path not specified.");
       }
       parentPath = new Path(args[i+1]);
+      if (!parentPath.isAbsolute()) {
+        parentPath= parentPath.getFileSystem(getConf()).makeQualified(parentPath);
+      }
+
       i+=2;
       //read the rest of the paths
       for (; i < args.length; i++) {
         if (i == (args.length - 1)) {
           destPath = new Path(args[i]);
+          if (!destPath.isAbsolute()) {
+            destPath = destPath.getFileSystem(getConf()).makeQualified(destPath);
+          }
         }
         else {
           Path argPath = new Path(args[i]);

hadoop-tools/hadoop-archives/src/test/java/org/apache/hadoop/tools/TestHadoopArchives.java

@@ -103,7 +103,42 @@ protected void tearDown() throws Exception {
     super.tearDown();
   }
   
-  
+   
+  public void testRelativePath() throws Exception {
+    fs.delete(archivePath, true);
+
+    final Path sub1 = new Path(inputPath, "dir1");
+    fs.mkdirs(sub1);
+    createFile(sub1, "a", fs);
+    final Configuration conf = mapred.createJobConf();
+    final FsShell shell = new FsShell(conf);
+
+    final List<String> originalPaths = lsr(shell, "input");
+    System.out.println("originalPath: " + originalPaths);
+    final URI uri = fs.getUri();
+    final String prefix = "har://hdfs-" + uri.getHost() +":" + uri.getPort()
+        + archivePath.toUri().getPath() + Path.SEPARATOR;
+
+    {
+      final String harName = "foo.har";
+      final String[] args = {
+          "-archiveName",
+          harName,
+          "-p",
+          "input",
+          "*",
+          "archive"
+      };
+      System.setProperty(HadoopArchives.TEST_HADOOP_ARCHIVES_JAR_PATH, HADOOP_ARCHIVES_JAR);
+      final HadoopArchives har = new HadoopArchives(mapred.createJobConf());
+      assertEquals(0, ToolRunner.run(har, args));
+
+      //compare results
+      final List<String> harPaths = lsr(shell, prefix + harName);
+      assertEquals(originalPaths, harPaths);
+    }
+  }
+
   public void testPathWithSpaces() throws Exception {
     fs.delete(archivePath, true);
 
@@ -170,8 +205,11 @@ private static List<String> lsr(final FsShell shell, String dir
       System.setErr(oldErr);
     }
     System.out.println("lsr results:\n" + results);
+    String dirname = dir;
+    if (dir.lastIndexOf(Path.SEPARATOR) != -1 ) {
+      dirname = dir.substring(dir.lastIndexOf(Path.SEPARATOR));
+    }
 
-    final String dirname = dir.substring(dir.lastIndexOf(Path.SEPARATOR));
     final List<String> paths = new ArrayList<String>();
     for(StringTokenizer t = new StringTokenizer(results, "\n");
         t.hasMoreTokens(); ) {