Merge r1233741 through r1234387 from 0.23.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-0.23-PB@1234406 13f79535-47bb-0310-9956-ffa450edef68

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

@@ -201,6 +201,12 @@ Release 0.23.1 - Unreleased
    HADOOP-7971. Adding back job/pipes/queue commands to bin/hadoop for
    backward compatibility. (Prashath Sharma via acmurthy) 
 
+   HADOOP-7982. UserGroupInformation fails to login if thread's context
+   classloader can't load HadoopLoginModule. (todd)
+
+   HADOOP-7986. Adding config for MapReduce History Server protocol in
+   hadoop-policy.xml for service level authorization. (Mahadev Konar via vinodkv)
+
 Release 0.23.0 - 2011-11-01 
 
   INCOMPATIBLE CHANGES

hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/UserGroupInformation.java

@@ -416,9 +416,19 @@ public AppConfigurationEntry[] getAppConfigurationEntry(String appName) {
   
   private static LoginContext
   newLoginContext(String appName, Subject subject) throws LoginException {
-    return new LoginContext(appName, subject, null, new HadoopConfiguration());
+    // Temporarily switch the thread's ContextClassLoader to match this
+    // class's classloader, so that we can properly load HadoopLoginModule
+    // from the JAAS libraries.
+    Thread t = Thread.currentThread();
+    ClassLoader oldCCL = t.getContextClassLoader();
+    t.setContextClassLoader(HadoopLoginModule.class.getClassLoader());
+    try {
+      return new LoginContext(appName, subject, null, new HadoopConfiguration());
+    } finally {
+      t.setContextClassLoader(oldCCL);
+    }
   }
-  
+
   private LoginContext getLogin() {
     return user.getLogin();
   }

hadoop-common-project/hadoop-common/src/main/packages/templates/conf/hadoop-policy.xml

@@ -209,4 +209,14 @@
     A special value of "*" means all users are allowed.</description>
   </property>
 
+   <property>
+      <name>security.mrhs.client.protocol.acl</name>
+      <value>*</value>
+      <description>ACL for HSClientProtocol, used by job clients to
+       communciate with the MR History Server job status etc. 
+       The ACL is a comma-separated list of user and group names. The user and
+       group list is separated by a blank. For e.g. "alice,bob users,wheel".
+       A special value of "*" means all users are allowed.</description>
+    </property>
+
 </configuration>

hadoop-hdfs-project/hadoop-hdfs-httpfs/dev-support/findbugsExcludeFile.xml

@@ -1,3 +1,19 @@
+<!--
+   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.
+-->
 <FindBugsFilter>
   <Match>
     <Class name="org.apache.hadoop.lib.service.instrumentation.InstrumentationService" />

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

@@ -199,6 +199,8 @@ Release 0.23.1 - UNRELEASED
     HDFS-2803. Add logging to LeaseRenewer for better lease expiration debugging.
     (Jimmy Xiang via todd)
 
+    HDFS-2817. Combine the two TestSafeMode test suites. (todd)
+
   OPTIMIZATIONS
 
     HDFS-2130. Switch default checksum to CRC32C. (todd)
@@ -266,6 +268,14 @@ Release 0.23.1 - UNRELEASED
     HDFS-2790. FSNamesystem.setTimes throws exception with wrong
     configuration name in the message. (Arpit Gupta via eli)
 
+    HDFS-2810. Leases not getting renewed properly by clients (todd)
+
+    HDFS-2751. Datanode may incorrectly drop OS cache behind reads
+    even for short reads. (todd)
+
+    HDFS-2816. Fix missing license header in httpfs findbugsExcludeFile.xml.
+    (hitesh via tucu)
+
 Release 0.23.0 - 2011-11-01 
 
   INCOMPATIBLE CHANGES

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

@@ -373,11 +373,17 @@ boolean isClientRunning() {
     return clientRunning;
   }
 
-  /** Renew leases */
-  void renewLease() throws IOException {
+  /**
+   * Renew leases.
+   * @return true if lease was renewed. May return false if this
+   * client has been closed or has no files open.
+   **/
+  boolean renewLease() throws IOException {
     if (clientRunning && !isFilesBeingWrittenEmpty()) {
       namenode.renewLease(clientName);
+      return true;
     }
+    return false;
   }
   
   /**

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

@@ -67,7 +67,7 @@
  * </p>
  */
 class LeaseRenewer {
-  private static final Log LOG = LogFactory.getLog(LeaseRenewer.class);
+  static final Log LOG = LogFactory.getLog(LeaseRenewer.class);
 
   static final long LEASE_RENEWER_GRACE_DEFAULT = 60*1000L;
   static final long LEASE_RENEWER_SLEEP_DEFAULT = 1000L;
@@ -407,7 +407,13 @@ public int compare(final DFSClient left, final DFSClient right) {
       final DFSClient c = copies.get(i);
       //skip if current client name is the same as the previous name.
       if (!c.getClientName().equals(previousName)) {
-        c.renewLease();
+        if (!c.renewLease()) {
+          if (LOG.isDebugEnabled()) {
+            LOG.debug("Did not renew lease for client " +
+                c);
+          }
+          continue;
+        }
         previousName = c.getClientName();
         if (LOG.isDebugEnabled()) {
           LOG.debug("Lease renewed for client " + previousName);

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/BlockSender.java

@@ -315,7 +315,7 @@ class BlockSender implements java.io.Closeable {
    * close opened files.
    */
   public void close() throws IOException {
-    if (blockInFd != null && shouldDropCacheBehindRead) {
+    if (blockInFd != null && shouldDropCacheBehindRead && isLongRead()) {
       // drop the last few MB of the file from cache
       try {
         NativeIO.posixFadviseIfPossible(

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

@@ -17,11 +17,14 @@
  */
 package org.apache.hadoop.hdfs;
 
+import static org.junit.Assert.*;
+
 import java.io.IOException;
 import java.util.concurrent.atomic.AtomicInteger;
 
 
 import org.apache.hadoop.security.UserGroupInformation;
+import org.apache.hadoop.test.GenericTestUtils;
 import org.junit.Assert;
 import org.junit.Before;
 import org.junit.Test;
@@ -29,6 +32,8 @@
 import org.mockito.invocation.InvocationOnMock;
 import org.mockito.stubbing.Answer;
 
+import com.google.common.base.Supplier;
+
 public class TestLeaseRenewer {
   private String FAKE_AUTHORITY="hdfs://nn1/";
   private UserGroupInformation FAKE_UGI_A =
@@ -46,19 +51,24 @@ public class TestLeaseRenewer {
   
   @Before
   public void setupMocksAndRenewer() throws IOException {
-    MOCK_DFSCLIENT = Mockito.mock(DFSClient.class);
-    Mockito.doReturn(true)
-      .when(MOCK_DFSCLIENT).isClientRunning();
-    Mockito.doReturn((int)FAST_GRACE_PERIOD)
-      .when(MOCK_DFSCLIENT).getHdfsTimeout();
-    Mockito.doReturn("myclient")
-      .when(MOCK_DFSCLIENT).getClientName();
+    MOCK_DFSCLIENT = createMockClient();
     
     renewer = LeaseRenewer.getInstance(
         FAKE_AUTHORITY, FAKE_UGI_A, MOCK_DFSCLIENT);
     renewer.setGraceSleepPeriod(FAST_GRACE_PERIOD);
 }
  
+  private DFSClient createMockClient() {
+    DFSClient mock = Mockito.mock(DFSClient.class);
+    Mockito.doReturn(true)
+      .when(mock).isClientRunning();
+    Mockito.doReturn((int)FAST_GRACE_PERIOD)
+      .when(mock).getHdfsTimeout();
+    Mockito.doReturn("myclient")
+      .when(mock).getClientName();
+    return mock;
+  }
+
   @Test
   public void testInstanceSharing() throws IOException {
     // Two lease renewers with the same UGI should return
@@ -93,11 +103,11 @@ public void testClientName() throws IOException {
   public void testRenewal() throws Exception {
     // Keep track of how many times the lease gets renewed
     final AtomicInteger leaseRenewalCount = new AtomicInteger();
-    Mockito.doAnswer(new Answer<Void>() {
+    Mockito.doAnswer(new Answer<Boolean>() {
       @Override
-      public Void answer(InvocationOnMock invocation) throws Throwable {
+      public Boolean answer(InvocationOnMock invocation) throws Throwable {
         leaseRenewalCount.incrementAndGet();
-        return null;
+        return true;
       }
     }).when(MOCK_DFSCLIENT).renewLease();
 
@@ -120,6 +130,57 @@ public Void answer(InvocationOnMock invocation) throws Throwable {
     renewer.closeFile(filePath, MOCK_DFSCLIENT);
   }
   
+  /**
+   * Regression test for HDFS-2810. In this bug, the LeaseRenewer has handles
+   * to several DFSClients with the same name, the first of which has no files
+   * open. Previously, this was causing the lease to not get renewed.
+   */
+  @Test
+  public void testManyDfsClientsWhereSomeNotOpen() throws Exception {
+    // First DFSClient has no files open so doesn't renew leases.
+    final DFSClient mockClient1 = createMockClient();
+    Mockito.doReturn(false).when(mockClient1).renewLease();
+    assertSame(renewer, LeaseRenewer.getInstance(
+        FAKE_AUTHORITY, FAKE_UGI_A, mockClient1));
+    
+    // Set up a file so that we start renewing our lease.
+    DFSOutputStream mockStream1 = Mockito.mock(DFSOutputStream.class);
+    String filePath = "/foo";
+    renewer.put(filePath, mockStream1, mockClient1);
+
+    // Second DFSClient does renew lease
+    final DFSClient mockClient2 = createMockClient();
+    Mockito.doReturn(true).when(mockClient2).renewLease();
+    assertSame(renewer, LeaseRenewer.getInstance(
+        FAKE_AUTHORITY, FAKE_UGI_A, mockClient2));
+
+    // Set up a file so that we start renewing our lease.
+    DFSOutputStream mockStream2 = Mockito.mock(DFSOutputStream.class);
+    renewer.put(filePath, mockStream2, mockClient2);
+
+    
+    // Wait for lease to get renewed
+    GenericTestUtils.waitFor(new Supplier<Boolean>() {
+      @Override
+      public Boolean get() {
+        try {
+          Mockito.verify(mockClient1, Mockito.atLeastOnce()).renewLease();
+          Mockito.verify(mockClient2, Mockito.atLeastOnce()).renewLease();
+          return true;
+        } catch (AssertionError err) {
+          LeaseRenewer.LOG.warn("Not yet satisfied", err);
+          return false;
+        } catch (IOException e) {
+          // should not throw!
+          throw new RuntimeException(e);
+        }
+      }
+    }, 100, 10000);
+
+    renewer.closeFile(filePath, mockClient1);
+    renewer.closeFile(filePath, mockClient2);
+  }
+  
   @Test
   public void testThreadName() throws Exception {
     DFSOutputStream mockStream = Mockito.mock(DFSOutputStream.class);

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

@@ -113,6 +113,21 @@ public void testManualSafeMode() throws IOException {
         dfs.setSafeMode(SafeModeAction.SAFEMODE_LEAVE));
   }
 
+  /**
+   * Test that, if there are no blocks in the filesystem,
+   * the NameNode doesn't enter the "safemode extension" period.
+   */
+  @Test(timeout=45000)
+  public void testNoExtensionIfNoBlocks() throws IOException {
+    cluster.getConfiguration(0).setInt(
+        DFSConfigKeys.DFS_NAMENODE_SAFEMODE_EXTENSION_KEY, 60000);
+    cluster.restartNameNode();
+    // Even though we have safemode extension set high, we should immediately
+    // exit safemode on startup because there are no blocks in the namespace.
+    String status = cluster.getNameNode().getNamesystem().getSafemode();
+    assertEquals("", status);
+  }
+
   public interface FSRun {
     public abstract void run(FileSystem fs) throws IOException;
   }
@@ -193,5 +208,37 @@ public void run(FileSystem fs) throws IOException {
     assertFalse("Could not leave SM",
         dfs.setSafeMode(SafeModeAction.SAFEMODE_LEAVE));
   }
-  
+
+  /**
+   * Verify that the NameNode stays in safemode when dfs.safemode.datanode.min
+   * is set to a number greater than the number of live datanodes.
+   */
+  @Test
+  public void testDatanodeThreshold() throws IOException {
+    cluster.shutdown();
+    Configuration conf = cluster.getConfiguration(0);
+    conf.setInt(DFSConfigKeys.DFS_NAMENODE_SAFEMODE_EXTENSION_KEY, 0);
+    conf.setInt(DFSConfigKeys.DFS_NAMENODE_SAFEMODE_MIN_DATANODES_KEY, 1);
+
+    cluster.restartNameNode();
+    fs = (DistributedFileSystem)cluster.getFileSystem();
+
+    String tipMsg = cluster.getNamesystem().getSafemode();
+    assertTrue("Safemode tip message looks right: " + tipMsg,
+               tipMsg.contains("The number of live datanodes 0 needs an additional " +
+                               "2 live datanodes to reach the minimum number 1. " +
+                               "Safe mode will be turned off automatically."));
+
+    // Start a datanode
+    cluster.startDataNodes(conf, 1, true, null, null);
+
+    // Wait long enough for safemode check to refire
+    try {
+      Thread.sleep(1000);
+    } catch (InterruptedException ignored) {}
+
+    // We now should be out of safe mode.
+    assertEquals("", cluster.getNamesystem().getSafemode());
+  }
+
 }

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

@@ -1,82 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.hadoop.hdfs.server.namenode;
-
-import java.io.IOException;
-
-import org.apache.hadoop.conf.Configuration;
-import org.apache.hadoop.hdfs.protocol.HdfsConstants.SafeModeAction;
-import org.apache.hadoop.hdfs.DFSConfigKeys;
-import org.apache.hadoop.hdfs.DistributedFileSystem;
-import org.apache.hadoop.hdfs.HdfsConfiguration;
-import org.apache.hadoop.hdfs.MiniDFSCluster;
-
-import org.junit.Test;
-import static org.junit.Assert.*;
-
-/**
- * Tests to verify safe mode correctness.
- */
-public class TestSafeMode {
-  
-  /**
-   * Verify that the NameNode stays in safemode when dfs.safemode.datanode.min
-   * is set to a number greater than the number of live datanodes.
-   */
-  @Test
-  public void testDatanodeThreshold() throws IOException {
-    MiniDFSCluster cluster = null;
-    DistributedFileSystem fs = null;
-    try {
-      Configuration conf = new HdfsConfiguration();
-      conf.setInt(DFSConfigKeys.DFS_NAMENODE_SAFEMODE_EXTENSION_KEY, 0);
-      conf.setInt(DFSConfigKeys.DFS_NAMENODE_SAFEMODE_MIN_DATANODES_KEY, 1);
-
-      // bring up a cluster with no datanodes
-      cluster = new MiniDFSCluster.Builder(conf).numDataNodes(0).format(true).build();
-      cluster.waitActive();
-      fs = (DistributedFileSystem)cluster.getFileSystem();
-
-      assertTrue("No datanode started, but we require one - safemode expected",
-                 fs.setSafeMode(SafeModeAction.SAFEMODE_GET));
-
-      String tipMsg = cluster.getNamesystem().getSafeModeTip();
-      assertTrue("Safemode tip message looks right",
-                 tipMsg.contains("The number of live datanodes 0 needs an additional " +
-                                 "2 live datanodes to reach the minimum number 1. " +
-                                 "Safe mode will be turned off automatically."));
-
-      // Start a datanode
-      cluster.startDataNodes(conf, 1, true, null, null);
-
-      // Wait long enough for safemode check to refire
-      try {
-        Thread.sleep(1000);
-      } catch (InterruptedException ignored) {}
-
-      // We now should be out of safe mode.
-      assertFalse(
-        "Out of safe mode after starting datanode.",
-        fs.setSafeMode(SafeModeAction.SAFEMODE_GET));
-    } finally {
-      if (fs != null) fs.close();
-      if (cluster != null) cluster.shutdown();
-    }
-  }
-}

hadoop-mapreduce-project/CHANGES.txt

@@ -30,8 +30,13 @@ Release 0.23.1 - Unreleased
     MAPREDUCE-3251. Network ACLs can prevent some clients to talk to MR ApplicationMaster.
     (Anupam Seth via mahadev)
 
+    MAPREDUCE-778. Rumen Anonymizer. (Amar Kamat and Chris Douglas via amarrk)
+
   IMPROVEMENTS
-    MAPREDUCE-3375. [Gridmix] Memory Emulation system tests.
+    MAPREDUCE-3597. [Rumen] Rumen should provide APIs to access all the 
+                    job-history related information.
+
+    MAPREDUCE-3375. [Gridmix] Memory Emulation system tests. 
                     (Vinay Thota via amarrk)
 
     MAPREDUCE-2733. [Gridmix] Gridmix3 cpu emulation system tests. 
@@ -476,6 +481,24 @@ Release 0.23.1 - Unreleased
     MAPREDUCE-3684. LocalDistributedCacheManager does not shut down its thread
     pool (tomwhite)
 
+    MAPREDUCE-3582. Move successfully passing MR1 tests to MR2 maven tree.
+    (ahmed via tucu)
+
+    MAPREDUCE-3698. Client cannot talk to the history server in secure mode.
+    (mahadev)
+
+    MAPREDUCE-3689. RM web UI doesn't handle newline in job name.
+    (Thomas Graves via mahadev)
+
+    MAPREDUCE-3701. Delete HadoopYarnRPC from 0.23 branch.
+    (mahadev)
+
+    MAPREDUCE-3549. write api documentation for web service apis for RM, NM, 
+    mapreduce app master, and job history server (Thomas Graves via mahadev)
+
+    MAPREDUCE-3705. ant build fails on 0.23 branch. (Thomas Graves via
+    mahadev)
+
 Release 0.23.0 - 2011-11-01 
 
   INCOMPATIBLE CHANGES

hadoop-mapreduce-project/build.xml

@@ -575,8 +575,6 @@
      <copy file="${test.src.dir}/mapred/org/apache/hadoop/mapred/test.tar" todir="${test.cache.data}"/>
      <copy file="${test.src.dir}/mapred/org/apache/hadoop/mapred/test.tgz" todir="${test.cache.data}"/>
      <copy file="${test.src.dir}/mapred/org/apache/hadoop/mapred/test.tar.gz" todir="${test.cache.data}"/>
-     <copy file="${test.src.dir}/mapred/org/apache/hadoop/cli/testMRConf.xml" todir="${test.cache.data}"/>
-     <copy file="${test.src.dir}/mapred/org/apache/hadoop/cli/data60bytes" todir="${test.cache.data}"/>
      <copy file="${test.src.dir}/mapred/org/apache/hadoop/mapred/concat.bz2" todir="${test.concat.data}"/>
      <copy file="${test.src.dir}/mapred/org/apache/hadoop/mapred/concat.gz" todir="${test.concat.data}"/>
      <copy file="${test.src.dir}/mapred/org/apache/hadoop/mapred/testCompressThenConcat.txt.bz2" todir="${test.concat.data}"/>

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/security/authorize/ClientHSPolicyProvider.java

@@ -0,0 +1,45 @@
+/**
+ * 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.mapreduce.v2.app.security.authorize;
+
+import org.apache.hadoop.classification.InterfaceAudience;
+import org.apache.hadoop.classification.InterfaceStability;
+import org.apache.hadoop.mapreduce.v2.jobhistory.JHAdminConfig;
+import org.apache.hadoop.security.authorize.PolicyProvider;
+import org.apache.hadoop.security.authorize.Service;
+import org.apache.hadoop.yarn.proto.HSClientProtocol;
+
+/**
+ * {@link PolicyProvider} for YARN MapReduce protocols.
+ */
+@InterfaceAudience.Private
+@InterfaceStability.Unstable
+public class ClientHSPolicyProvider extends PolicyProvider {
+  
+  private static final Service[] mrHSServices = 
+      new Service[] {
+    new Service(
+        JHAdminConfig.MR_HS_SECURITY_SERVICE_AUTHORIZATION,
+        HSClientProtocol.HSClientProtocolService.BlockingInterface.class)
+  };
+
+  @Override
+  public Service[] getServices() {
+    return mrHSServices;
+  }
+}

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/webapp/dao/JobTaskAttemptCounterInfo.java

@@ -30,7 +30,7 @@
 import org.apache.hadoop.mapreduce.v2.app.job.TaskAttempt;
 import org.apache.hadoop.mapreduce.v2.util.MRApps;
 
-@XmlRootElement(name = "JobTaskAttemptCounters")
+@XmlRootElement(name = "jobTaskAttemptCounters")
 @XmlAccessorType(XmlAccessType.FIELD)
 public class JobTaskAttemptCounterInfo {
 

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/webapp/TestAMWebServicesAttempts.java

@@ -629,7 +629,7 @@ public void testTaskAttemptIdCounters() throws JSONException, Exception {
           assertEquals(MediaType.APPLICATION_JSON_TYPE, response.getType());
           JSONObject json = response.getEntity(JSONObject.class);
           assertEquals("incorrect number of elements", 1, json.length());
-          JSONObject info = json.getJSONObject("JobTaskAttemptCounters");
+          JSONObject info = json.getJSONObject("jobTaskAttemptCounters");
           verifyAMJobTaskAttemptCounters(info, att);
         }
       }
@@ -661,7 +661,7 @@ public void testTaskAttemptIdXMLCounters() throws JSONException, Exception {
           InputSource is = new InputSource();
           is.setCharacterStream(new StringReader(xml));
           Document dom = db.parse(is);
-          NodeList nodes = dom.getElementsByTagName("JobTaskAttemptCounters");
+          NodeList nodes = dom.getElementsByTagName("jobTaskAttemptCounters");
 
           verifyAMTaskCountersXML(nodes, att);
         }

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-common/src/main/java/org/apache/hadoop/mapreduce/v2/api/impl/pb/client/HSClientProtocolPBClientImpl.java

@@ -22,13 +22,20 @@
 import java.net.InetSocketAddress;
 
 import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.ipc.RPC;
 import org.apache.hadoop.mapreduce.v2.api.HSClientProtocol;
+import org.apache.hadoop.yarn.ipc.ProtoOverHadoopRpcEngine;
+import org.apache.hadoop.yarn.proto.HSClientProtocol.HSClientProtocolService;
 
 public class HSClientProtocolPBClientImpl extends MRClientProtocolPBClientImpl
   implements HSClientProtocol {
 
   public HSClientProtocolPBClientImpl(long clientVersion,
       InetSocketAddress addr, Configuration conf) throws IOException {
-    super(clientVersion, addr, conf);
+    super();
+    RPC.setProtocolEngine(conf, HSClientProtocolService.BlockingInterface.class,
+        ProtoOverHadoopRpcEngine.class);
+    proxy = (HSClientProtocolService.BlockingInterface)RPC.getProxy(
+        HSClientProtocolService.BlockingInterface.class, clientVersion, addr, conf);
   }
 }

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-common/src/main/java/org/apache/hadoop/mapreduce/v2/api/impl/pb/client/MRClientProtocolPBClientImpl.java

@@ -93,7 +93,9 @@
 
 public class MRClientProtocolPBClientImpl implements MRClientProtocol {
 
-  private MRClientProtocolService.BlockingInterface proxy;
+  protected MRClientProtocolService.BlockingInterface proxy;
+  
+  public MRClientProtocolPBClientImpl() {};
   
   public MRClientProtocolPBClientImpl(long clientVersion, InetSocketAddress addr, Configuration conf) throws IOException {
     RPC.setProtocolEngine(conf, MRClientProtocolService.BlockingInterface.class, ProtoOverHadoopRpcEngine.class);

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-common/src/main/java/org/apache/hadoop/mapreduce/v2/jobhistory/JHAdminConfig.java

@@ -111,4 +111,9 @@ public class JHAdminConfig {
   public static final int DEFAULT_MR_HISTORY_WEBAPP_PORT = 19888;
   public static final String DEFAULT_MR_HISTORY_WEBAPP_ADDRESS =
     "0.0.0.0:" + DEFAULT_MR_HISTORY_WEBAPP_PORT;
+  /*
+   * HS Service Authorization
+   */
+  public static final String MR_HS_SECURITY_SERVICE_AUTHORIZATION =
+      "security.mrhs.client.protocol.acl";
 }

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-common/src/main/java/org/apache/hadoop/mapreduce/v2/security/client/ClientHSSecurityInfo.java

@@ -20,6 +20,8 @@
 
 import java.lang.annotation.Annotation;
 
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.mapreduce.v2.jobhistory.JHAdminConfig;
 import org.apache.hadoop.security.KerberosInfo;
@@ -30,7 +32,7 @@
 import org.apache.hadoop.yarn.proto.HSClientProtocol;
 
 public class ClientHSSecurityInfo extends SecurityInfo {
-  
+    
   @Override
   public KerberosInfo getKerberosInfo(Class<?> protocol, Configuration conf) {
     if (!protocol

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/main/java/org/apache/hadoop/mapreduce/v2/hs/HistoryClientService.java

@@ -66,7 +66,7 @@
 import org.apache.hadoop.mapreduce.v2.api.records.TaskType;
 import org.apache.hadoop.mapreduce.v2.app.job.Job;
 import org.apache.hadoop.mapreduce.v2.app.job.Task;
-import org.apache.hadoop.mapreduce.v2.app.security.authorize.MRAMPolicyProvider;
+import org.apache.hadoop.mapreduce.v2.app.security.authorize.ClientHSPolicyProvider;
 import org.apache.hadoop.mapreduce.v2.hs.webapp.HsWebApp;
 import org.apache.hadoop.mapreduce.v2.jobhistory.JHAdminConfig;
 import org.apache.hadoop.net.NetUtils;
@@ -136,9 +136,9 @@ public void start() {
     if (conf.getBoolean(
         CommonConfigurationKeysPublic.HADOOP_SECURITY_AUTHORIZATION,
         false)) {
-      server.refreshServiceAcl(conf, new MRAMPolicyProvider());
+      server.refreshServiceAcl(conf, new ClientHSPolicyProvider());
     }
-
+    
     server.start();
     this.bindAddress =
         NetUtils.createSocketAddr(hostNameResolved.getHostAddress()

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/main/java/org/apache/hadoop/mapreduce/v2/hs/JobHistory.java

@@ -35,6 +35,7 @@
 import java.util.concurrent.ThreadFactory;
 import java.util.concurrent.ThreadPoolExecutor;
 import java.util.concurrent.TimeUnit;
+import java.util.regex.Pattern;
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
@@ -49,6 +50,7 @@
 import org.apache.hadoop.fs.RemoteIterator;
 import org.apache.hadoop.fs.permission.FsPermission;
 import org.apache.hadoop.mapred.JobACLsManager;
+import org.apache.hadoop.mapreduce.JobID;
 import org.apache.hadoop.mapreduce.MRJobConfig;
 import org.apache.hadoop.mapreduce.TypeConverter;
 import org.apache.hadoop.mapreduce.jobhistory.JobSummary;
@@ -86,6 +88,9 @@ public class JobHistory extends AbstractService implements HistoryContext   {
   private static final Log LOG = LogFactory.getLog(JobHistory.class);
 
   private static final Log SUMMARY_LOG = LogFactory.getLog(JobSummary.class);
+  public static final Pattern CONF_FILENAME_REGEX =
+    Pattern.compile("(" + JobID.JOBID_REGEX + ")_conf.xml(?:\\.[0-9]+\\.old)?");
+  public static final String OLD_SUFFIX = ".old";
 
   private static String DONE_BEFORE_SERIAL_TAIL = 
     JobHistoryUtils.doneSubdirsBeforeSerialTail();

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/test/java/org/apache/hadoop/mapreduce/v2/hs/webapp/TestHsWebServicesAttempts.java

@@ -642,7 +642,7 @@ public void testTaskAttemptIdCounters() throws JSONException, Exception {
           assertEquals(MediaType.APPLICATION_JSON_TYPE, response.getType());
           JSONObject json = response.getEntity(JSONObject.class);
           assertEquals("incorrect number of elements", 1, json.length());
-          JSONObject info = json.getJSONObject("JobTaskAttemptCounters");
+          JSONObject info = json.getJSONObject("jobTaskAttemptCounters");
           verifyHsJobTaskAttemptCounters(info, att);
         }
       }
@@ -674,7 +674,7 @@ public void testTaskAttemptIdXMLCounters() throws JSONException, Exception {
           InputSource is = new InputSource();
           is.setCharacterStream(new StringReader(xml));
           Document dom = db.parse(is);
-          NodeList nodes = dom.getElementsByTagName("JobTaskAttemptCounters");
+          NodeList nodes = dom.getElementsByTagName("jobTaskAttemptCounters");
 
           verifyHsTaskCountersXML(nodes, att);
         }

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/test/java/org/apache/hadoop/fs/DFSCIOTest.java

@@ -38,6 +38,7 @@
 import org.apache.hadoop.io.Text;
 import org.apache.hadoop.io.SequenceFile.CompressionType;
 import org.apache.hadoop.mapred.*;
+import org.junit.Ignore;
 
 /**
  * Distributed i/o benchmark.
@@ -66,6 +67,7 @@
  * <li>standard i/o rate deviation</li>
  * </ul>
  */
+@Ignore
 public class DFSCIOTest extends TestCase {
   // Constants
   private static final Log LOG = LogFactory.getLog(DFSCIOTest.class);

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/test/java/org/apache/hadoop/fs/DistributedFSCheck.java

@@ -41,6 +41,7 @@
 import org.apache.hadoop.io.Text;
 import org.apache.hadoop.io.SequenceFile.CompressionType;
 import org.apache.hadoop.mapred.*;
+import org.junit.Ignore;
 
 /**
  * Distributed checkup of the file system consistency.
@@ -52,6 +53,7 @@
  * Optionally displays statistics on read performance.
  * 
  */
+@Ignore
 public class DistributedFSCheck extends TestCase {
   // Constants
   private static final Log LOG = LogFactory.getLog(DistributedFSCheck.class);

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/test/java/org/apache/hadoop/ipc/TestSocketFactory.java

@@ -35,10 +35,12 @@
 import org.apache.hadoop.mapred.MiniMRCluster;
 import org.apache.hadoop.mapreduce.MRConfig;
 import org.apache.hadoop.net.StandardSocketFactory;
+import org.junit.Ignore;
 
 /**
  * This class checks that RPCs can use specialized socket factories.
  */
+@Ignore
 public class TestSocketFactory extends TestCase {
 
   /**

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

@@ -39,7 +39,8 @@
 import org.apache.hadoop.io.Text;
 import org.apache.hadoop.mapreduce.TaskCounter;
 import org.apache.hadoop.util.ReflectionUtils;
-
+import org.junit.Ignore;
+@Ignore
 public class TestBadRecords extends ClusterMapReduceTestCase {
   
   private static final Log LOG = 

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

@@ -20,9 +20,12 @@
 
 import java.io.IOException;
 
+import org.junit.Ignore;
+
 /**
  * Tests Job end notification in cluster mode.
  */
+@Ignore
 public class TestClusterMRNotification extends NotificationTestCase {
 
   public TestClusterMRNotification() throws IOException {

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

@@ -21,10 +21,11 @@
 import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.io.LongWritable;
 import org.apache.hadoop.io.Text;
+import org.junit.Ignore;
 
 import java.io.*;
 import java.util.Properties;
-
+@Ignore
 public class TestClusterMapReduceTestCase extends ClusterMapReduceTestCase {
   public void _testMapReduce(boolean restart) throws Exception {
     OutputStream os = getFileSystem().create(new Path(getInputDir(), "text.txt"));

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

@@ -28,12 +28,13 @@
 import org.apache.hadoop.util.StringUtils;
 import org.apache.hadoop.util.ToolRunner;
 import org.apache.hadoop.hdfs.MiniDFSCluster;
+import org.junit.Ignore;
 
 /**
  * check for the job submission  options of 
  * -libjars -files -archives
  */
-
+@Ignore
 public class TestCommandLineJobSubmission extends TestCase {
   // Input output paths for this.. 
   // these are all dummy and does not test

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

@@ -36,12 +36,13 @@
 import org.apache.hadoop.util.LineReader;
 import org.apache.hadoop.util.ReflectionUtils;
 
+import org.junit.Ignore;
 import org.junit.Test;
 import static junit.framework.Assert.*;
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
-
+@Ignore
 public class TestConcatenatedCompressedInput {
   private static final Log LOG =
     LogFactory.getLog(TestConcatenatedCompressedInput.class.getName());