HDFS-4491. Merging change r1520479 and r1520482 from trunk to branch-2.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1520485 13f79535-47bb-0310-9956-ffa450edef68

hadoop-common-project/hadoop-common/pom.xml

@@ -705,9 +705,7 @@
             <groupId>org.apache.maven.plugins</groupId>
             <artifactId>maven-surefire-plugin</artifactId>
             <configuration>
-              <forkMode>perthread</forkMode>
-              <threadCount>${testsThreadCount}</threadCount>
-              <parallel>classes</parallel>
+              <forkCount>${testsThreadCount}</forkCount>
               <argLine>-Xmx1024m -XX:+HeapDumpOnOutOfMemoryError -DminiClusterDedicatedDirs=true</argLine>
             </configuration>
           </plugin>

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

@@ -29,6 +29,8 @@ Release 2.3.0 - UNRELEASED
     HDFS-5144. Document time unit to NameNodeMetrics. (Akira Ajisaka via
     suresh)
 
+    HDFS-4491. Parallel testing HDFS. (Andrey Klochkov via cnauroth)
+
   OPTIMIZATIONS
 
   BUG FIXES

hadoop-hdfs-project/hadoop-hdfs/pom.xml

@@ -614,5 +614,44 @@ http://maven.apache.org/xsd/maven-4.0.0.xsd">
         </plugins>
       </build>
     </profile>
+    <profile>
+      <id>parallel-tests</id>
+      <build>
+        <plugins>
+          <plugin>
+            <artifactId>maven-antrun-plugin</artifactId>
+            <executions>
+              <execution>
+                <id>create-parallel-tests-dirs</id>               
+                <phase>test-compile</phase>
+                <configuration>
+                  <target>
+                    <exec executable="sh">
+                      <arg value="-c"/>
+                      <arg value="for i in {1..${testsThreadCount}}; do mkdir -p ${test.build.data}/$i; mkdir -p ${hadoop.tmp.dir}/$i; done"/>
+                    </exec>
+                  </target>
+                </configuration>
+                <goals>
+                  <goal>run</goal>
+                </goals>
+              </execution>
+            </executions>
+          </plugin>
+          <plugin>
+            <groupId>org.apache.maven.plugins</groupId>
+            <artifactId>maven-surefire-plugin</artifactId>
+            <configuration>
+              <forkCount>${testsThreadCount}</forkCount>
+              <argLine>-Xmx1024m -XX:+HeapDumpOnOutOfMemoryError -DminiClusterDedicatedDirs=true</argLine>
+              <systemPropertyVariables>
+                <test.build.data>${test.build.data}/${surefire.forkNumber}</test.build.data>
+                <hadoop.tmp.dir>${hadoop.tmp.dir}/${surefire.forkNumber}</hadoop.tmp.dir>
+              </systemPropertyVariables>
+            </configuration>
+          </plugin>
+        </plugins>
+      </build>
+    </profile>
   </profiles>
 </project>

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

@@ -51,7 +51,7 @@ import org.apache.hadoop.hdfs.security.token.delegation.DelegationTokenIdentifie
 import org.apache.hadoop.hdfs.security.token.delegation.DelegationTokenSelector;
 import org.apache.hadoop.hdfs.server.common.JspHelper;
 import org.apache.hadoop.hdfs.tools.DelegationTokenFetcher;
-import org.apache.hadoop.hdfs.web.URLUtils;
+import org.apache.hadoop.hdfs.web.URLConnectionFactory;
 import org.apache.hadoop.io.Text;
 import org.apache.hadoop.ipc.RemoteException;
 import org.apache.hadoop.net.NetUtils;
@@ -86,6 +86,8 @@ public class HftpFileSystem extends FileSystem
     HttpURLConnection.setFollowRedirects(true);
   }
 
+  URLConnectionFactory connectionFactory = URLConnectionFactory.DEFAULT_CONNECTION_FACTORY;
+
   public static final Text TOKEN_KIND = new Text("HFTP delegation");
 
   protected UserGroupInformation ugi;
@@ -331,8 +333,8 @@ public class HftpFileSystem extends FileSystem
       throws IOException {
     query = addDelegationTokenParam(query);
     final URL url = getNamenodeURL(path, query);
-    final HttpURLConnection connection =
-        (HttpURLConnection)URLUtils.openConnection(url);
+    final HttpURLConnection connection;
+    connection = (HttpURLConnection)connectionFactory.openConnection(url);
     connection.setRequestMethod("GET");
     connection.connect();
     return connection;
@@ -352,12 +354,14 @@ public class HftpFileSystem extends FileSystem
   }
 
   static class RangeHeaderUrlOpener extends ByteRangeInputStream.URLOpener {
+    URLConnectionFactory connectionFactory = URLConnectionFactory.DEFAULT_CONNECTION_FACTORY;
+    
     RangeHeaderUrlOpener(final URL url) {
       super(url);
     }
 
     protected HttpURLConnection openConnection() throws IOException {
-      return (HttpURLConnection)URLUtils.openConnection(url);
+      return (HttpURLConnection)connectionFactory.openConnection(url);
     }
 
     /** Use HTTP Range header for specifying offset. */

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

@@ -40,7 +40,6 @@ import javax.net.ssl.X509TrustManager;
 import org.apache.hadoop.classification.InterfaceAudience;
 import org.apache.hadoop.classification.InterfaceStability;
 import org.apache.hadoop.conf.Configuration;
-import org.apache.hadoop.hdfs.web.URLUtils;
 import org.apache.hadoop.util.Time;
 
 /**
@@ -154,7 +153,8 @@ public class HsftpFileSystem extends HftpFileSystem {
     query = addDelegationTokenParam(query);
     final URL url = new URL("https", nnUri.getHost(), 
         nnUri.getPort(), path + '?' + query);
-    HttpsURLConnection conn = (HttpsURLConnection)URLUtils.openConnection(url);
+    HttpsURLConnection conn;
+    conn = (HttpsURLConnection)connectionFactory.openConnection(url);
     // bypass hostname verification
     conn.setHostnameVerifier(new DummyHostnameVerifier());
     conn.setRequestMethod("GET");

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/web/URLUtils.java → hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/web/URLConnectionFactory.java

@@ -30,19 +30,27 @@ import org.apache.hadoop.classification.InterfaceStability;
  */
 @InterfaceAudience.LimitedPrivate({"HDFS"})
 @InterfaceStability.Unstable
-public class URLUtils {
+public class URLConnectionFactory {
   /**
    * Timeout for socket connects and reads
    */
-  public static int SOCKET_TIMEOUT = 1*60*1000; // 1 minute
+  public final static int DEFAULT_SOCKET_TIMEOUT = 1*60*1000; // 1 minute
 
+  public static final URLConnectionFactory DEFAULT_CONNECTION_FACTORY = new URLConnectionFactory(DEFAULT_SOCKET_TIMEOUT);
+  
+  private int socketTimeout;
+
+  public URLConnectionFactory(int socketTimeout) {
+    this.socketTimeout = socketTimeout;
+  }
+  
   /**
    * Opens a url with read and connect timeouts
    * @param url to open
    * @return URLConnection
    * @throws IOException
    */
-  public static URLConnection openConnection(URL url) throws IOException {
+  public URLConnection openConnection(URL url) throws IOException {
     URLConnection connection = url.openConnection();
     setTimeouts(connection);
     return connection;    
@@ -53,8 +61,8 @@ public class URLUtils {
    * 
    * @param connection URLConnection to set
    */
-  static void setTimeouts(URLConnection connection) {
-    connection.setConnectTimeout(SOCKET_TIMEOUT);
-    connection.setReadTimeout(SOCKET_TIMEOUT);
+  public void setTimeouts(URLConnection connection) {
+    connection.setConnectTimeout(socketTimeout);
+    connection.setReadTimeout(socketTimeout);
   }
 }

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/web/WebHdfsFileSystem.java

@@ -121,13 +121,15 @@ public class WebHdfsFileSystem extends FileSystem
 
   /** SPNEGO authenticator */
   private static final KerberosUgiAuthenticator AUTH = new KerberosUgiAuthenticator();
+  /** Default connection factory may be overriden in tests to use smaller timeout values */
+  URLConnectionFactory connectionFactory = URLConnectionFactory.DEFAULT_CONNECTION_FACTORY;
   /** Configures connections for AuthenticatedURL */
-  private static final ConnectionConfigurator CONN_CONFIGURATOR =
+  private final ConnectionConfigurator CONN_CONFIGURATOR =
     new ConnectionConfigurator() {
       @Override
       public HttpURLConnection configure(HttpURLConnection conn)
           throws IOException {
-        URLUtils.setTimeouts(conn);
+        connectionFactory.setTimeouts(conn);
         return conn;
       }
     };
@@ -481,10 +483,9 @@ public class WebHdfsFileSystem extends FileSystem
           final AuthenticatedURL.Token authToken = new AuthenticatedURL.Token();
           conn = new AuthenticatedURL(AUTH, CONN_CONFIGURATOR).openConnection(
             url, authToken);
-          URLUtils.setTimeouts(conn);
         } else {
           LOG.debug("open URL connection");
-          conn = (HttpURLConnection)URLUtils.openConnection(url);
+          conn = (HttpURLConnection)connectionFactory.openConnection(url);
         }
       } catch (AuthenticationException e) {
         throw new IOException(e);
@@ -579,7 +580,7 @@ public class WebHdfsFileSystem extends FileSystem
       checkRetry = false;
       
       //Step 2) Submit another Http request with the URL from the Location header with data.
-      conn = (HttpURLConnection)URLUtils.openConnection(new URL(redirect));
+      conn = (HttpURLConnection)connectionFactory.openConnection(new URL(redirect));
       conn.setRequestProperty("Content-Type", MediaType.APPLICATION_OCTET_STREAM);
       conn.setChunkedStreamingMode(32 << 10); //32kB-chunk
       connect();
@@ -602,7 +603,7 @@ public class WebHdfsFileSystem extends FileSystem
           disconnect();
   
           checkRetry = false;
-          conn = (HttpURLConnection)URLUtils.openConnection(new URL(redirect));
+          conn = (HttpURLConnection)connectionFactory.openConnection(new URL(redirect));
           connect();
         }
 

hadoop-hdfs-project/hadoop-hdfs/src/test/aop/org/apache/hadoop/fs/TestFiRename.java

@@ -17,6 +17,7 @@
  */
 package org.apache.hadoop.fs;
 
+import java.io.File;
 import java.io.IOException;
 import java.util.EnumSet;
 
@@ -27,6 +28,7 @@ import org.apache.hadoop.fs.Options.Rename;
 import org.apache.hadoop.hdfs.DFSConfigKeys;
 import org.apache.hadoop.hdfs.MiniDFSCluster;
 import org.apache.hadoop.hdfs.server.namenode.FSNamesystem;
+import org.apache.hadoop.test.PathUtils;
 import org.junit.After;
 import org.junit.Assert;
 import org.junit.Before;
@@ -56,8 +58,7 @@ public class TestFiRename {
   private static String addChild = "";
   private static byte[] data = { 0 };
   
-  private static String TEST_ROOT_DIR = 
-    System.getProperty("test.build.data", "/tmp") + "/test";
+  private static String TEST_ROOT_DIR = PathUtils.getTestDirName(TestFiRename.class);
   
   private static Configuration CONF = new Configuration();
   static {

hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/fs/TestResolveHdfsSymlink.java

@@ -18,6 +18,7 @@
 
 package org.apache.hadoop.fs;
 
+import java.io.File;
 import static org.junit.Assert.fail;
 
 import java.io.FileNotFoundException;
@@ -36,6 +37,7 @@ import org.apache.hadoop.hdfs.security.token.delegation.DelegationTokenIdentifie
 import org.apache.hadoop.security.UserGroupInformation;
 import org.apache.hadoop.security.token.Token;
 import org.apache.hadoop.security.token.delegation.AbstractDelegationTokenIdentifier;
+import org.apache.hadoop.test.PathUtils;
 import org.apache.hadoop.test.GenericTestUtils;
 import org.junit.AfterClass;
 import org.junit.Assert;
@@ -48,6 +50,7 @@ import org.junit.Test;
  * underlying file system as Hdfs.
  */
 public class TestResolveHdfsSymlink {
+  private static File TEST_ROOT_DIR = PathUtils.getTestDir(TestResolveHdfsSymlink.class);
   private static MiniDFSCluster cluster = null;
 
   @BeforeClass
@@ -80,12 +83,12 @@ public class TestResolveHdfsSymlink {
         .getUri());
 
     Path alphaLocalPath = new Path(fcLocal.getDefaultFileSystem().getUri()
-        .toString(), "/tmp/alpha");
+        .toString(), new File(TEST_ROOT_DIR, "alpha").getAbsolutePath());
     DFSTestUtil.createFile(FileSystem.getLocal(conf), alphaLocalPath, 16,
         (short) 1, 2);
 
     Path linkTarget = new Path(fcLocal.getDefaultFileSystem().getUri()
-        .toString(), "/tmp");
+        .toString(), TEST_ROOT_DIR.getAbsolutePath());
     Path hdfsLink = new Path(fcHdfs.getDefaultFileSystem().getUri().toString(),
         "/tmp/link");
     fcHdfs.createSymlink(linkTarget, hdfsLink, true);

hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/fs/TestUrlStreamHandler.java

@@ -31,6 +31,7 @@ import java.net.URL;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.hdfs.HdfsConfiguration;
 import org.apache.hadoop.hdfs.MiniDFSCluster;
+import org.apache.hadoop.test.PathUtils;
 import org.junit.Test;
 
 /**
@@ -38,6 +39,8 @@ import org.junit.Test;
  */
 public class TestUrlStreamHandler {
 
+  private static File TEST_ROOT_DIR = PathUtils.getTestDir(TestUrlStreamHandler.class);
+    
   /**
    * Test opening and reading from an InputStream through a hdfs:// URL.
    * <p>
@@ -111,13 +114,12 @@ public class TestUrlStreamHandler {
     Configuration conf = new HdfsConfiguration();
 
     // Locate the test temporary directory.
-    File tmpDir = new File(conf.get("hadoop.tmp.dir"));
-    if (!tmpDir.exists()) {
-      if (!tmpDir.mkdirs())
-        throw new IOException("Cannot create temporary directory: " + tmpDir);
+    if (!TEST_ROOT_DIR.exists()) {
+      if (!TEST_ROOT_DIR.mkdirs())
+        throw new IOException("Cannot create temporary directory: " + TEST_ROOT_DIR);
     }
 
-    File tmpFile = new File(tmpDir, "thefile");
+    File tmpFile = new File(TEST_ROOT_DIR, "thefile");
     URI uri = tmpFile.toURI();
 
     FileSystem fs = FileSystem.get(uri, conf);

hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/fs/loadGenerator/TestLoadGenerator.java

@@ -29,6 +29,7 @@ import org.apache.hadoop.conf.Configured;
 import org.apache.hadoop.hdfs.DFSConfigKeys;
 import org.apache.hadoop.hdfs.HdfsConfiguration;
 import org.apache.hadoop.hdfs.MiniDFSCluster;
+import org.apache.hadoop.test.PathUtils;
 import org.apache.hadoop.util.Time;
 import org.apache.hadoop.util.Tool;
 import org.apache.hadoop.util.ToolRunner;
@@ -39,8 +40,7 @@ import org.junit.Test;
 public class TestLoadGenerator extends Configured implements Tool {
   private static final Configuration CONF = new HdfsConfiguration();
   private static final int DEFAULT_BLOCK_SIZE = 10;
-  private static final String OUT_DIR = 
-    System.getProperty("test.build.data","build/test/data");
+  private static final File OUT_DIR = PathUtils.getTestDir(TestLoadGenerator.class);
   private static final File DIR_STRUCTURE_FILE = 
     new File(OUT_DIR, StructureGenerator.DIR_STRUCTURE_FILE_NAME);
   private static final File FILE_STRUCTURE_FILE =
@@ -65,7 +65,7 @@ public class TestLoadGenerator extends Configured implements Tool {
     StructureGenerator sg = new StructureGenerator();
     String[] args = new String[]{"-maxDepth", "2", "-minWidth", "1",
         "-maxWidth", "2", "-numOfFiles", "2",
-        "-avgFileSize", "1", "-outDir", OUT_DIR, "-seed", "1"};
+        "-avgFileSize", "1", "-outDir", OUT_DIR.getAbsolutePath(), "-seed", "1"};
     
     final int MAX_DEPTH = 1;
     final int MIN_WIDTH = 3;
@@ -133,8 +133,7 @@ public class TestLoadGenerator extends Configured implements Tool {
   public void testLoadGenerator() throws Exception {
     final String TEST_SPACE_ROOT = "/test";
 
-    final String SCRIPT_TEST_DIR = new File(System.getProperty("test.build.data",
-    "/tmp")).getAbsolutePath();
+    final String SCRIPT_TEST_DIR = OUT_DIR.getAbsolutePath();
     String script = SCRIPT_TEST_DIR + "/" + "loadgenscript";
     String script2 = SCRIPT_TEST_DIR + "/" + "loadgenscript2";
     File scriptFile1 = new File(script);
@@ -156,7 +155,7 @@ public class TestLoadGenerator extends Configured implements Tool {
     try {
       DataGenerator dg = new DataGenerator();
       dg.setConf(CONF);
-      String [] args = new String[] {"-inDir", OUT_DIR, "-root", TEST_SPACE_ROOT};
+      String [] args = new String[] {"-inDir", OUT_DIR.getAbsolutePath(), "-root", TEST_SPACE_ROOT};
       assertEquals(0, dg.run(args));
 
       final int READ_PROBABILITY = 1;

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

@@ -1405,6 +1405,13 @@ public class MiniDFSCluster {
    * Shutdown all the nodes in the cluster.
    */
   public void shutdown() {
+      shutdown(false);
+  }
+    
+  /**
+   * Shutdown all the nodes in the cluster.
+   */
+  public void shutdown(boolean deleteDfsDir) {
     LOG.info("Shutting down the Mini HDFS Cluster");
     if (checkExitOnShutdown)  {
       if (ExitUtil.terminateCalled()) {
@@ -1424,6 +1431,11 @@ public class MiniDFSCluster {
         nameNode = null;
       }
     }
+    if (deleteDfsDir) {
+        base_dir.delete();
+    } else {
+        base_dir.deleteOnExit();
+    }
   }
   
   /**
@@ -2116,7 +2128,7 @@ public class MiniDFSCluster {
    * <li><base directory>/data/data<2*dnIndex + 1></li>
    * <li><base directory>/data/data<2*dnIndex + 2></li>
    * </ol>
-   * 
+   *
    * @param dnIndex datanode index (starts from 0)
    * @param dirIndex directory index (0 or 1). Index 0 provides access to the
    *          first storage directory. Index 1 provides access to the second
@@ -2147,7 +2159,7 @@ public class MiniDFSCluster {
   public static String getDNCurrentDir(File storageDir) {
     return storageDir + "/" + Storage.STORAGE_DIR_CURRENT + "/";
   }
-  
+
   /**
    * Get directory corresponding to block pool directory in the datanode
    * @param storageDir the storage directory of a datanode.
@@ -2253,7 +2265,7 @@ public class MiniDFSCluster {
     }
     return null;
   }
-
+  
   /**
    * Get the block metadata file for a block from a given datanode
    * 
@@ -2341,14 +2353,17 @@ public class MiniDFSCluster {
     } else {
       if (checkDataNodeAddrConfig) {
         conf.setIfUnset(DFS_DATANODE_ADDRESS_KEY, "127.0.0.1:0");
-        conf.setIfUnset(DFS_DATANODE_HTTP_ADDRESS_KEY, "127.0.0.1:0");
-        conf.setIfUnset(DFS_DATANODE_IPC_ADDRESS_KEY, "127.0.0.1:0");
       } else {
         conf.set(DFS_DATANODE_ADDRESS_KEY, "127.0.0.1:0");
-        conf.set(DFS_DATANODE_HTTP_ADDRESS_KEY, "127.0.0.1:0");
-        conf.set(DFS_DATANODE_IPC_ADDRESS_KEY, "127.0.0.1:0");
       }
     }
+    if (checkDataNodeAddrConfig) {
+      conf.setIfUnset(DFS_DATANODE_HTTP_ADDRESS_KEY, "127.0.0.1:0");
+      conf.setIfUnset(DFS_DATANODE_IPC_ADDRESS_KEY, "127.0.0.1:0");
+    } else {
+      conf.set(DFS_DATANODE_HTTP_ADDRESS_KEY, "127.0.0.1:0");
+      conf.set(DFS_DATANODE_IPC_ADDRESS_KEY, "127.0.0.1:0");
+    }
   }
   
   private void addToFile(String p, String address) throws IOException {

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

@@ -71,10 +71,6 @@ public class TestClientReportBadBlock {
 
   @Before
   public void startUpCluster() throws IOException {
-    if (System.getProperty("test.build.data") == null) { // to allow test to be
-      // run outside of Ant
-      System.setProperty("test.build.data", "build/test/data");
-    }
     // disable block scanner
     conf.setInt(DFSConfigKeys.DFS_DATANODE_SCAN_PERIOD_HOURS_KEY, -1); 
     

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

@@ -20,9 +20,6 @@ package org.apache.hadoop.hdfs;
 import static org.apache.hadoop.hdfs.server.common.HdfsServerConstants.NodeType.DATA_NODE;
 import static org.apache.hadoop.hdfs.server.common.HdfsServerConstants.NodeType.NAME_NODE;
 import static org.junit.Assert.*;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.fail;
 
 import java.io.File;
 import java.io.IOException;

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

@@ -44,6 +44,7 @@ import org.apache.hadoop.io.Text;
 import org.apache.hadoop.io.compress.BZip2Codec;
 import org.apache.hadoop.io.compress.CompressionCodec;
 import org.apache.hadoop.security.UserGroupInformation;
+import org.apache.hadoop.test.PathUtils;
 import org.apache.hadoop.util.ReflectionUtils;
 import org.apache.hadoop.util.StringUtils;
 import org.apache.hadoop.util.ToolRunner;
@@ -61,9 +62,7 @@ public class TestDFSShell {
   private static final Log LOG = LogFactory.getLog(TestDFSShell.class);
   private static AtomicInteger counter = new AtomicInteger();
 
-  static final String TEST_ROOT_DIR =
-    new Path(System.getProperty("test.build.data","/tmp"))
-    .toString().replace(' ', '+');
+  static final String TEST_ROOT_DIR = PathUtils.getTestDirName(TestDFSShell.class);
 
   static Path writeFile(FileSystem fs, Path f) throws IOException {
     DataOutputStream out = fs.create(f);
@@ -482,12 +481,11 @@ public class TestDFSShell {
     Configuration dstConf = new HdfsConfiguration();
     MiniDFSCluster srcCluster =  null;
     MiniDFSCluster dstCluster = null;
-    String bak = System.getProperty("test.build.data");
+    File bak = new File(PathUtils.getTestDir(getClass()), "dfs_tmp_uri");
+    bak.mkdirs();
     try{
       srcCluster = new MiniDFSCluster.Builder(srcConf).numDataNodes(2).build();
-      File nameDir = new File(new File(bak), "dfs_tmp_uri/");
-      nameDir.mkdirs();
-      System.setProperty("test.build.data", nameDir.toString());
+      dstConf.set(MiniDFSCluster.HDFS_MINIDFS_BASEDIR, bak.getAbsolutePath());
       dstCluster = new MiniDFSCluster.Builder(dstConf).numDataNodes(2).build();
       FileSystem srcFs = srcCluster.getFileSystem();
       FileSystem dstFs = dstCluster.getFileSystem();
@@ -559,7 +557,6 @@ public class TestDFSShell {
       ret = ToolRunner.run(shell, argv);
       assertEquals("default works for rm/rmr", 0, ret);
     } finally {
-      System.setProperty("test.build.data", bak);
       if (null != srcCluster) {
         srcCluster.shutdown();
       }

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

@@ -46,6 +46,7 @@ import org.apache.hadoop.hdfs.server.namenode.FSNamesystem;
 import org.apache.hadoop.hdfs.server.namenode.HostFileManager;
 import org.apache.hadoop.hdfs.server.namenode.NameNode;
 import org.apache.hadoop.hdfs.server.namenode.NameNodeAdapter;
+import org.apache.hadoop.test.PathUtils;
 import org.junit.After;
 import org.junit.Assert;
 import org.junit.Before;
@@ -76,7 +77,7 @@ public class TestDecommission {
     // Set up the hosts/exclude files.
     localFileSys = FileSystem.getLocal(conf);
     Path workingDir = localFileSys.getWorkingDirectory();
-    Path dir = new Path(workingDir, System.getProperty("test.build.data", "target/test/data") + "/work-dir/decommission");
+    Path dir = new Path(workingDir, PathUtils.getTestDirName(getClass()) + "/work-dir/decommission");
     hostsFile = new Path(dir, "hosts");
     excludeFile = new Path(dir, "exclude");
     

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

@@ -23,6 +23,8 @@ import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertTrue;
 import static org.junit.Assert.fail;
 
+
+import java.io.File;
 import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.net.URI;
@@ -70,6 +72,9 @@ public class TestDistributedFileSystem {
     HdfsConfiguration conf;
     if (noXmlDefaults) {
        conf = new HdfsConfiguration(false);
+       String namenodeDir = new File(MiniDFSCluster.getBaseDirectory(), "name").getAbsolutePath();
+       conf.set(DFSConfigKeys.DFS_NAMENODE_NAME_DIR_KEY, namenodeDir);
+       conf.set(DFSConfigKeys.DFS_NAMENODE_EDITS_DIR_KEY, namenodeDir);     
     } else {
        conf = new HdfsConfiguration();
     }

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

@@ -39,6 +39,7 @@ import org.apache.hadoop.fs.LocalFileSystem;
 import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.fs.permission.FsPermission;
 import org.apache.hadoop.io.IOUtils;
+import org.apache.hadoop.test.PathUtils;
 import org.junit.Test;
 
 /**
@@ -260,7 +261,7 @@ public class TestFSInputChecker {
     // create a file and verify that checksum corruption results in 
     // a checksum exception on LocalFS
     
-    String dir = System.getProperty("test.build.data", ".");
+    String dir = PathUtils.getTestDirName(getClass());
     Path file = new Path(dir + "/corruption-test.dat");
     Path crcFile = new Path(dir + "/.corruption-test.dat.crc");
     

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

@@ -37,6 +37,7 @@ import org.apache.hadoop.hdfs.server.namenode.NNStorage;
 import org.apache.hadoop.hdfs.util.Holder;
 import org.apache.hadoop.io.IOUtils;
 import org.apache.hadoop.test.GenericTestUtils;
+import org.apache.hadoop.test.PathUtils;
 import org.junit.Test;
 
 /**
@@ -145,7 +146,7 @@ public class TestFileAppendRestart {
 
     String tarFile = System.getProperty("test.cache.data", "build/test/cache")
       + "/" + HADOOP_23_BROKEN_APPEND_TGZ;
-    String testDir = System.getProperty("test.build.data", "build/test/data");
+    String testDir = PathUtils.getTestDirName(getClass());
     File dfsDir = new File(testDir, "image-with-buggy-append");
     if (dfsDir.exists() && !FileUtil.fullyDelete(dfsDir)) {
       throw new IOException("Could not delete dfs directory '" + dfsDir + "'");

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

@@ -43,6 +43,7 @@ import org.apache.hadoop.hdfs.server.datanode.DataNodeTestUtils;
 import org.apache.hadoop.hdfs.server.namenode.FSNamesystem;
 import org.apache.hadoop.hdfs.server.namenode.NameNode;
 import org.apache.hadoop.hdfs.server.protocol.DatanodeRegistration;
+import org.apache.hadoop.test.PathUtils;
 import org.apache.log4j.Level;
 import org.junit.Test;
 
@@ -95,7 +96,7 @@ public class TestFileCorruption {
   @Test
   public void testLocalFileCorruption() throws Exception {
     Configuration conf = new HdfsConfiguration();
-    Path file = new Path(System.getProperty("test.build.data"), "corruptFile");
+    Path file = new Path(PathUtils.getTestDirName(getClass()), "corruptFile");
     FileSystem fs = FileSystem.getLocal(conf);
     DataOutputStream dos = fs.create(file);
     dos.writeBytes("original bytes");

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

@@ -36,6 +36,7 @@ import org.apache.hadoop.hdfs.server.namenode.BackupNode;
 import org.apache.hadoop.hdfs.server.namenode.NameNode;
 import org.apache.hadoop.metrics2.lib.DefaultMetricsSystem;
 import org.apache.hadoop.net.DNS;
+import org.apache.hadoop.test.PathUtils;
 import org.junit.Test;
 
 /**
@@ -53,6 +54,9 @@ public class TestHDFSServerPorts {
   
   // reset default 0.0.0.0 addresses in order to avoid IPv6 problem
   static final String THIS_HOST = getFullHostName() + ":0";
+  
+  private static final File TEST_DATA_DIR = PathUtils.getTestDir(TestHDFSServerPorts.class);
+  
   static {
     DefaultMetricsSystem.setMiniClusterMode(true);
   }
@@ -81,13 +85,6 @@ public class TestHDFSServerPorts {
     }
   }
   
-  /**
-   * Get base directory these tests should run in.
-   */
-  private String getTestingDir() {
-    return System.getProperty("test.build.data", "build/test/data");
-  }
-  
   public NameNode startNameNode() throws IOException {
     return startNameNode(false);
   }
@@ -95,8 +92,7 @@ public class TestHDFSServerPorts {
    * Start the namenode.
    */
   public NameNode startNameNode(boolean withService) throws IOException {
-    String dataDir = getTestingDir();
-    hdfsDir = new File(dataDir, "dfs");
+    hdfsDir = new File(TEST_DATA_DIR, "dfs");
     if ( hdfsDir.exists() && !FileUtil.fullyDelete(hdfsDir) ) {
       throw new IOException("Could not delete hdfs directory '" + hdfsDir + "'");
     }
@@ -119,9 +115,8 @@ public class TestHDFSServerPorts {
    * Start the BackupNode
    */
   public BackupNode startBackupNode(Configuration conf) throws IOException {
-    String dataDir = getTestingDir();
     // Set up testing environment directories
-    hdfsDir = new File(dataDir, "backupNode");
+    hdfsDir = new File(TEST_DATA_DIR, "backupNode");
     if ( hdfsDir.exists() && !FileUtil.fullyDelete(hdfsDir) ) {
       throw new IOException("Could not delete hdfs directory '" + hdfsDir + "'");
     }
@@ -150,8 +145,7 @@ public class TestHDFSServerPorts {
    */
   public DataNode startDataNode(int index, Configuration config) 
   throws IOException {
-    String dataDir = getTestingDir();
-    File dataNodeDir = new File(dataDir, "data-" + index);
+    File dataNodeDir = new File(TEST_DATA_DIR, "data-" + index);
     config.set(DFSConfigKeys.DFS_DATANODE_DATA_DIR_KEY, dataNodeDir.getPath());
 
     String[] args = new String[] {};

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

@@ -33,16 +33,11 @@ import java.util.List;
 
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.FileSystem;
-import org.apache.hadoop.hdfs.web.URLUtils;
-import org.junit.BeforeClass;
+import org.apache.hadoop.hdfs.web.URLConnectionFactory;
 import org.junit.Test;
 
 public class TestHftpURLTimeouts {
-  @BeforeClass
-  public static void setup() {
-    URLUtils.SOCKET_TIMEOUT = 5;
-  }
-  
+
   @Test
   public void testHftpSocketTimeout() throws Exception {
     Configuration conf = new Configuration();
@@ -51,9 +46,11 @@ public class TestHftpURLTimeouts {
         InetAddress.getByName(null).getHostAddress(),
         socket.getLocalPort(),
         null, null, null);
-    boolean timedout = false;
 
     HftpFileSystem fs = (HftpFileSystem)FileSystem.get(uri, conf);
+    fs.connectionFactory = new URLConnectionFactory(5);
+
+    boolean timedout = false;
     try {
       HttpURLConnection conn = fs.openConnection("/", "");
       timedout = false;
@@ -69,6 +66,7 @@ public class TestHftpURLTimeouts {
       assertTrue("read timedout", timedout);
       assertTrue("connect timedout", checkConnectTimeout(fs, false));
     } finally {
+      fs.connectionFactory = URLConnectionFactory.DEFAULT_CONNECTION_FACTORY;
       fs.close();
     }
   }
@@ -84,6 +82,8 @@ public class TestHftpURLTimeouts {
     boolean timedout = false;
 
     HsftpFileSystem fs = (HsftpFileSystem)FileSystem.get(uri, conf);
+    fs.connectionFactory = new URLConnectionFactory(5);
+    
     try {
       HttpURLConnection conn = null;
       timedout = false;
@@ -100,6 +100,7 @@ public class TestHftpURLTimeouts {
       assertTrue("ssl read connect timedout", timedout);
       assertTrue("connect timedout", checkConnectTimeout(fs, true));
     } finally {
+      fs.connectionFactory = URLConnectionFactory.DEFAULT_CONNECTION_FACTORY;
       fs.close();
     }
   }
@@ -121,7 +122,7 @@ public class TestHftpURLTimeouts {
           // https will get a read timeout due to SSL negotiation, but
           // a normal http will not, so need to ignore SSL read timeouts
           // until a connect timeout occurs
-          if (!(ignoreReadTimeout && message.equals("Read timed out"))) {
+          if (!(ignoreReadTimeout && "Read timed out".equals(message))) {
             timedout = true;
             assertEquals("connect timed out", message);
           }

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

@@ -25,8 +25,8 @@ import static org.junit.Assume.assumeTrue;
 import java.io.File;
 
 import org.apache.hadoop.conf.Configuration;
-import org.apache.hadoop.hdfs.protocol.FSConstants;
-import org.junit.After;
+import org.apache.hadoop.hdfs.protocol.HdfsConstants;
+import org.apache.hadoop.test.PathUtils;
 import org.junit.Before;
 import org.junit.Test;
 
@@ -43,20 +43,10 @@ public class TestMiniDFSCluster {
   private static final String CLUSTER_3 = "cluster3";
   private static final String CLUSTER_4 = "cluster4";
   private static final String CLUSTER_5 = "cluster5";
-  protected String testDataPath;
-  protected File testDataDir;
+  protected File testDataPath;
   @Before
   public void setUp() {
-    testDataPath = System.getProperty(MiniDFSCluster.PROP_TEST_BUILD_DATA,
-        "build/test/data");
-    testDataDir = new File(new File(testDataPath).getParentFile(),
-                           "miniclusters");
-
-
-  }
-  @After
-  public void tearDown() {
-    System.setProperty(MiniDFSCluster.PROP_TEST_BUILD_DATA, testDataPath);
+    testDataPath = new File(PathUtils.getTestDir(getClass()), "miniclusters");
   }
 
   /**
@@ -120,7 +110,7 @@ public class TestMiniDFSCluster {
     MiniDFSCluster cluster4 = new MiniDFSCluster.Builder(conf).build();
     try {
       DistributedFileSystem dfs = (DistributedFileSystem) cluster4.getFileSystem();
-      dfs.setSafeMode(FSConstants.SafeModeAction.SAFEMODE_ENTER);
+      dfs.setSafeMode(HdfsConstants.SafeModeAction.SAFEMODE_ENTER);
       cluster4.shutdown();
     } finally {
       while(cluster4.isClusterUp()){

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

@@ -43,6 +43,7 @@ import org.apache.hadoop.hdfs.server.namenode.FSNamesystem;
 import org.apache.hadoop.hdfs.server.namenode.NameNode;
 import org.apache.hadoop.io.IOUtils;
 import org.apache.hadoop.test.GenericTestUtils;
+import org.apache.hadoop.test.PathUtils;
 import org.apache.log4j.Level;
 import org.junit.Test;
 
@@ -304,7 +305,7 @@ public class TestPersistBlocks {
         
     String tarFile = System.getProperty("test.cache.data", "build/test/cache")
       + "/" + HADOOP_1_0_MULTIBLOCK_TGZ;
-    String testDir = System.getProperty("test.build.data", "build/test/data");
+    String testDir = PathUtils.getTestDirName(getClass());
     File dfsDir = new File(testDir, "image-1.0");
     if (dfsDir.exists() && !FileUtil.fullyDelete(dfsDir)) {
       throw new IOException("Could not delete dfs directory '" + dfsDir + "'");

hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/qjournal/TestNNWithQJM.java

@@ -174,6 +174,7 @@ public class TestNNWithQJM {
   public void testMismatchedNNIsRejected() throws Exception {
     conf.set(DFSConfigKeys.DFS_NAMENODE_NAME_DIR_KEY,
         MiniDFSCluster.getBaseDirectory() + "/TestNNWithQJM/image");
+    String defaultEditsDir = conf.get(DFSConfigKeys.DFS_NAMENODE_EDITS_DIR_KEY);
     conf.set(DFSConfigKeys.DFS_NAMENODE_EDITS_DIR_KEY,
         mjc.getQuorumJournalURI("myjournal").toString());
     
@@ -187,7 +188,7 @@ public class TestNNWithQJM {
     
     // Reformat just the on-disk portion
     Configuration onDiskOnly = new Configuration(conf);
-    onDiskOnly.unset(DFSConfigKeys.DFS_NAMENODE_EDITS_DIR_KEY);
+    onDiskOnly.set(DFSConfigKeys.DFS_NAMENODE_EDITS_DIR_KEY, defaultEditsDir);
     NameNode.format(onDiskOnly);
 
     // Start the NN - should fail because the JNs are still formatted

hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/qjournal/server/TestJournalNode.java

@@ -46,6 +46,7 @@ import org.apache.hadoop.metrics2.MetricsRecordBuilder;
 import org.apache.hadoop.metrics2.lib.DefaultMetricsSystem;
 import org.apache.hadoop.test.GenericTestUtils;
 import org.apache.hadoop.test.MetricsAsserts;
+import org.apache.hadoop.test.PathUtils;
 import org.apache.hadoop.util.Shell;
 import org.junit.After;
 import org.junit.Before;
@@ -61,13 +62,13 @@ public class TestJournalNode {
   private static final NamespaceInfo FAKE_NSINFO = new NamespaceInfo(
       12345, "mycluster", "my-bp", 0L);
 
+  private static File TEST_BUILD_DATA = PathUtils.getTestDir(TestJournalNode.class);
+
   private JournalNode jn;
   private Journal journal; 
   private Configuration conf = new Configuration();
   private IPCLoggerChannel ch;
   private String journalId;
-  private File TEST_BUILD_DATA =
-      new File(System.getProperty("test.build.data", "build/test/data"));
 
   static {
     // Avoid an error when we double-initialize JvmMetrics

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

@@ -22,7 +22,6 @@ import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertTrue;
 
 import java.io.File;
-import java.io.IOException;
 import java.util.Collection;
 
 import org.apache.hadoop.conf.Configuration;

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

@@ -45,6 +45,7 @@ import org.apache.hadoop.hdfs.server.datanode.DataNodeTestUtils;
 import org.apache.hadoop.hdfs.server.namenode.NameNode;
 import org.apache.hadoop.net.NetworkTopology;
 import org.apache.hadoop.net.Node;
+import org.apache.hadoop.test.PathUtils;
 import org.apache.hadoop.util.Time;
 import org.apache.log4j.Level;
 import org.apache.log4j.Logger;
@@ -84,8 +85,7 @@ public class TestReplicationPolicy {
 
     FileSystem.setDefaultUri(conf, "hdfs://localhost:0");
     conf.set(DFSConfigKeys.DFS_NAMENODE_HTTP_ADDRESS_KEY, "0.0.0.0:0");
-    File baseDir = new File(System.getProperty(
-        "test.build.data", "build/test/data"), "dfs/");
+    File baseDir = PathUtils.getTestDir(TestReplicationPolicy.class);
     conf.set(DFSConfigKeys.DFS_NAMENODE_NAME_DIR_KEY,
         new File(baseDir, "name").getPath());
 

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

@@ -18,7 +18,6 @@
 package org.apache.hadoop.hdfs.server.blockmanagement;
 
 import java.io.File;
-import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.HashMap;
@@ -38,6 +37,9 @@ import org.apache.hadoop.hdfs.protocol.HdfsConstants;
 import org.apache.hadoop.hdfs.server.namenode.NameNode;
 import org.apache.hadoop.net.NetworkTopology;
 import org.apache.hadoop.net.Node;
+import org.apache.hadoop.test.PathUtils;
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Test;
 
 public class TestReplicationPolicyWithNodeGroup extends TestCase {
@@ -45,10 +47,10 @@ public class TestReplicationPolicyWithNodeGroup extends TestCase {
   private static final int NUM_OF_DATANODES = 8;
   private static final int NUM_OF_DATANODES_BOUNDARY = 6;
   private static final int NUM_OF_DATANODES_MORE_TARGETS = 12;
-  private static final Configuration CONF = new HdfsConfiguration();
-  private static final NetworkTopology cluster;
-  private static final NameNode namenode;
-  private static final BlockPlacementPolicy replicator;
+  private final Configuration CONF = new HdfsConfiguration();
+  private NetworkTopology cluster;
+  private NameNode namenode;
+  private BlockPlacementPolicy replicator;
   private static final String filename = "/dummyfile.txt";
 
   private final static DatanodeDescriptor dataNodes[] = new DatanodeDescriptor[] {
@@ -91,27 +93,23 @@ public class TestReplicationPolicyWithNodeGroup extends TestCase {
   private final static DatanodeDescriptor NODE = 
       new DatanodeDescriptor(DFSTestUtil.getDatanodeDescriptor("9.9.9.9", "/d2/r4/n7"));
 
-  static {
-    try {
-      FileSystem.setDefaultUri(CONF, "hdfs://localhost:0");
-      CONF.set(DFSConfigKeys.DFS_NAMENODE_HTTP_ADDRESS_KEY, "0.0.0.0:0");
-      // Set properties to make HDFS aware of NodeGroup.
-      CONF.set("dfs.block.replicator.classname", 
-          "org.apache.hadoop.hdfs.server.blockmanagement.BlockPlacementPolicyWithNodeGroup");
-      CONF.set(CommonConfigurationKeysPublic.NET_TOPOLOGY_IMPL_KEY, 
-          "org.apache.hadoop.net.NetworkTopologyWithNodeGroup");
-      
-      File baseDir = new File(System.getProperty(
-          "test.build.data", "build/test/data"), "dfs/");
-      CONF.set(DFSConfigKeys.DFS_NAMENODE_NAME_DIR_KEY,
-          new File(baseDir, "name").getPath());
-      
-      DFSTestUtil.formatNameNode(CONF);
-      namenode = new NameNode(CONF);
-    } catch (IOException e) {
-      e.printStackTrace();
-      throw (RuntimeException)new RuntimeException().initCause(e);
-    }
+  @Before
+  public void setUp() throws Exception {
+    FileSystem.setDefaultUri(CONF, "hdfs://localhost:0");
+    CONF.set(DFSConfigKeys.DFS_NAMENODE_HTTP_ADDRESS_KEY, "0.0.0.0:0");
+    // Set properties to make HDFS aware of NodeGroup.
+    CONF.set("dfs.block.replicator.classname", 
+        "org.apache.hadoop.hdfs.server.blockmanagement.BlockPlacementPolicyWithNodeGroup");
+    CONF.set(CommonConfigurationKeysPublic.NET_TOPOLOGY_IMPL_KEY, 
+        "org.apache.hadoop.net.NetworkTopologyWithNodeGroup");
+    
+    File baseDir = PathUtils.getTestDir(TestReplicationPolicyWithNodeGroup.class);
+    
+    CONF.set(DFSConfigKeys.DFS_NAMENODE_NAME_DIR_KEY,
+        new File(baseDir, "name").getPath());
+    
+    DFSTestUtil.formatNameNode(CONF);
+    namenode = new NameNode(CONF);
     final BlockManager bm = namenode.getNamesystem().getBlockManager();
     replicator = bm.getBlockPlacementPolicy();
     cluster = bm.getDatanodeManager().getNetworkTopology();
@@ -122,6 +120,11 @@ public class TestReplicationPolicyWithNodeGroup extends TestCase {
     setupDataNodeCapacity();
   }
 
+  @After
+  public void tearDown() throws Exception {
+    namenode.stop();
+  }
+  
   private static void setupDataNodeCapacity() {
     for(int i=0; i<NUM_OF_DATANODES; i++) {
       dataNodes[i].updateHeartbeat(
@@ -625,7 +628,9 @@ public class TestReplicationPolicyWithNodeGroup extends TestCase {
    */
   @Test
   public void testChooseMoreTargetsThanNodeGroups() throws Exception {
-    // Cleanup nodes in previous tests
+    for(int i=0; i<NUM_OF_DATANODES; i++) {
+      cluster.remove(dataNodes[i]);
+    }
     for(int i=0; i<NUM_OF_DATANODES_BOUNDARY; i++) {
       DatanodeDescriptor node = dataNodesInBoundaryCase[i];
       if (cluster.contains(node)) {

hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/TestBPOfferService.java

@@ -50,6 +50,7 @@ import org.apache.hadoop.hdfs.server.protocol.StorageBlockReport;
 import org.apache.hadoop.hdfs.server.protocol.StorageReceivedDeletedBlocks;
 import org.apache.hadoop.hdfs.server.protocol.StorageReport;
 import org.apache.hadoop.test.GenericTestUtils;
+import org.apache.hadoop.test.PathUtils;
 import org.apache.log4j.Level;
 import org.junit.Before;
 import org.junit.Test;
@@ -70,8 +71,7 @@ public class TestBPOfferService {
       TestBPOfferService.class);
   private static final ExtendedBlock FAKE_BLOCK =
     new ExtendedBlock(FAKE_BPID, 12345L);
-  private static final String TEST_BUILD_DATA = System.getProperty(
-    "test.build.data", "build/test/data");
+  private static final File TEST_BUILD_DATA = PathUtils.getTestDir(TestBPOfferService.class);
 
   static {
     ((Log4JLogger)DataNode.LOG).getLogger().setLevel(Level.ALL);

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

@@ -40,6 +40,7 @@ import org.apache.hadoop.hdfs.HdfsConfiguration;
 import org.apache.hadoop.hdfs.MiniDFSCluster;
 import org.apache.hadoop.hdfs.server.namenode.TestGenericJournalConf.DummyJournalManager;
 import org.apache.hadoop.hdfs.server.namenode.ha.HATestUtil;
+import org.apache.hadoop.test.PathUtils;
 import org.apache.hadoop.util.StringUtils;
 import org.junit.AfterClass;
 import org.junit.BeforeClass;
@@ -54,37 +55,34 @@ public class TestAllowFormat {
   public static final String NAME_NODE_HTTP_HOST = "0.0.0.0:";
   private static final Log LOG =
     LogFactory.getLog(TestAllowFormat.class.getName());
+  private static final File DFS_BASE_DIR = new File(PathUtils.getTestDir(TestAllowFormat.class), "dfs");
   private static Configuration config;
   private static MiniDFSCluster cluster = null;
-  private static File hdfsDir=null;
 
   @BeforeClass
   public static void setUp() throws Exception {
     config = new Configuration();
-    String baseDir = System.getProperty("test.build.data", "build/test/data");
-
-    hdfsDir = new File(baseDir, "dfs");
-    if ( hdfsDir.exists() && !FileUtil.fullyDelete(hdfsDir) ) {
-      throw new IOException("Could not delete hdfs directory '" + hdfsDir +
+    if ( DFS_BASE_DIR.exists() && !FileUtil.fullyDelete(DFS_BASE_DIR) ) {
+      throw new IOException("Could not delete hdfs directory '" + DFS_BASE_DIR +
                             "'");
     }
-
+    
     // Test has multiple name directories.
     // Format should not really prompt us if one of the directories exist,
     // but is empty. So in case the test hangs on an input, it means something
     // could be wrong in the format prompting code. (HDFS-1636)
-    LOG.info("hdfsdir is " + hdfsDir.getAbsolutePath());
-    File nameDir1 = new File(hdfsDir, "name1");
-    File nameDir2 = new File(hdfsDir, "name2");
+    LOG.info("hdfsdir is " + DFS_BASE_DIR.getAbsolutePath());
+    File nameDir1 = new File(DFS_BASE_DIR, "name1");
+    File nameDir2 = new File(DFS_BASE_DIR, "name2");
 
     // To test multiple directory handling, we pre-create one of the name directories.
     nameDir1.mkdirs();
 
     // Set multiple name directories.
     config.set(DFS_NAMENODE_NAME_DIR_KEY, nameDir1.getPath() + "," + nameDir2.getPath());
-    config.set(DFS_DATANODE_DATA_DIR_KEY, new File(hdfsDir, "data").getPath());
+    config.set(DFS_DATANODE_DATA_DIR_KEY, new File(DFS_BASE_DIR, "data").getPath());
 
-    config.set(DFS_NAMENODE_CHECKPOINT_DIR_KEY,new File(hdfsDir, "secondary").getPath());
+    config.set(DFS_NAMENODE_CHECKPOINT_DIR_KEY,new File(DFS_BASE_DIR, "secondary").getPath());
 
     FileSystem.setDefaultUri(config, "hdfs://"+NAME_NODE_HOST + "0");
   }
@@ -99,9 +97,9 @@ public class TestAllowFormat {
       LOG.info("Stopping mini cluster");
     }
     
-    if ( hdfsDir.exists() && !FileUtil.fullyDelete(hdfsDir) ) {
+    if ( DFS_BASE_DIR.exists() && !FileUtil.fullyDelete(DFS_BASE_DIR) ) {
       throw new IOException("Could not delete hdfs directory in tearDown '"
-                            + hdfsDir + "'");
+                            + DFS_BASE_DIR + "'");
     }	
   }
 
@@ -170,7 +168,7 @@ public class TestAllowFormat {
     HATestUtil.setFailoverConfigurations(conf, logicalName, nnAddr1, nnAddr2);
 
     conf.set(DFS_NAMENODE_NAME_DIR_KEY,
-        new File(hdfsDir, "name").getAbsolutePath());
+        new File(DFS_BASE_DIR, "name").getAbsolutePath());
     conf.setBoolean(DFS_NAMENODE_SUPPORT_ALLOW_FORMAT_KEY, true);
     conf.set(DFSUtil.addKeySuffixes(
         DFSConfigKeys.DFS_NAMENODE_EDITS_PLUGIN_PREFIX, "dummy"),

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

@@ -45,6 +45,7 @@ import org.apache.hadoop.hdfs.web.WebHdfsTestUtil;
 import org.apache.hadoop.hdfs.web.WebHdfsFileSystem;
 import org.apache.hadoop.security.AccessControlException;
 import org.apache.hadoop.security.UserGroupInformation;
+import org.apache.hadoop.test.PathUtils;
 import org.apache.log4j.Level;
 import org.apache.log4j.LogManager;
 import org.apache.log4j.Logger;
@@ -58,8 +59,7 @@ import org.junit.Test;
  * A JUnit test that audit logs are generated
  */
 public class TestAuditLogs {
-  static final String auditLogFile = System.getProperty("test.build.dir",
-      "build/test") + "/audit.log";
+  static final String auditLogFile = PathUtils.getTestDirName(TestAuditLogs.class) + "/TestAuditLogs-audit.log";
   
   // Pattern for: 
   // allowed=(true|false) ugi=name ip=/address cmd={cmd} src={path} dst=null perm=null

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

@@ -96,6 +96,8 @@ public class TestBackupNode {
         "${" + DFSConfigKeys.DFS_NAMENODE_NAME_DIR_KEY + "}");
     c.set(DFSConfigKeys.DFS_NAMENODE_BACKUP_ADDRESS_KEY,
         "127.0.0.1:0");
+    c.set(DFSConfigKeys.DFS_NAMENODE_BACKUP_HTTP_ADDRESS_KEY,
+            "127.0.0.1:0");
 
     BackupNode bn = (BackupNode)NameNode.createNameNode(
         new String[]{startupOpt.getName()}, c);

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

@@ -77,6 +77,7 @@ import org.apache.hadoop.net.NetUtils;
 import org.apache.hadoop.test.GenericTestUtils;
 import org.apache.hadoop.test.GenericTestUtils.DelayAnswer;
 import org.apache.hadoop.test.GenericTestUtils.LogCapturer;
+import org.apache.hadoop.test.PathUtils;
 import org.apache.hadoop.util.ExitUtil;
 import org.apache.hadoop.util.ExitUtil.ExitException;
 import org.apache.hadoop.util.StringUtils;
@@ -206,7 +207,7 @@ public class TestCheckpoint {
     ArrayList<URI> fsImageDirs = new ArrayList<URI>();
     ArrayList<URI> editsDirs = new ArrayList<URI>();
     File filePath =
-      new File(System.getProperty("test.build.data","/tmp"), "storageDirToCheck");
+      new File(PathUtils.getTestDir(getClass()), "storageDirToCheck");
     assertTrue("Couldn't create directory storageDirToCheck",
                filePath.exists() || filePath.mkdirs());
     fsImageDirs.add(filePath.toURI());
@@ -1914,9 +1915,11 @@ public class TestCheckpoint {
       }
       
       // Start a new NN with the same host/port.
-      cluster = new MiniDFSCluster.Builder(conf).numDataNodes(0)
-          .nameNodePort(origPort).nameNodeHttpPort(origHttpPort).format(true)
-          .build();
+      cluster = new MiniDFSCluster.Builder(conf)
+          .numDataNodes(0)
+          .nameNodePort(origPort)
+          .nameNodeHttpPort(origHttpPort)
+          .format(true).build();
 
       try {
         secondary.doCheckpoint();
@@ -2138,7 +2141,8 @@ public class TestCheckpoint {
     conf.setInt(DFSConfigKeys.DFS_NAMENODE_CHECKPOINT_CHECK_PERIOD_KEY, 1);
     
     try {
-      cluster = new MiniDFSCluster.Builder(conf).numDataNodes(0)
+      cluster = new MiniDFSCluster.Builder(conf)
+          .numDataNodes(0)
           .format(true).build();
       FileSystem fs = cluster.getFileSystem();
       secondary = startSecondaryNameNode(conf);

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

@@ -42,6 +42,7 @@ import org.apache.hadoop.fs.FileUtil;
 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.StorageDirectory;
+import org.apache.hadoop.test.PathUtils;
 import org.apache.hadoop.util.ExitUtil;
 import org.apache.hadoop.util.ExitUtil.ExitException;
 import org.junit.After;
@@ -72,7 +73,7 @@ public class TestClusterId {
   public void setUp() throws IOException {
     ExitUtil.disableSystemExit();
 
-    String baseDir = System.getProperty("test.build.data", "build/test/data");
+    String baseDir = PathUtils.getTestDirName(getClass());
 
     hdfsDir = new File(baseDir, "dfs/name");
     if (hdfsDir.exists() && !FileUtil.fullyDelete(hdfsDir)) {

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

@@ -69,6 +69,7 @@ import org.apache.hadoop.hdfs.server.namenode.metrics.NameNodeMetrics;
 import org.apache.hadoop.hdfs.server.protocol.NamespaceInfo;
 import org.apache.hadoop.io.IOUtils;
 import org.apache.hadoop.test.GenericTestUtils;
+import org.apache.hadoop.test.PathUtils;
 import org.apache.hadoop.util.StringUtils;
 import org.apache.hadoop.util.Time;
 import org.apache.log4j.Level;
@@ -96,9 +97,8 @@ public class TestEditLog {
   static final int NUM_TRANSACTIONS = 100;
   static final int NUM_THREADS = 100;
   
-  static final File TEST_DIR = new File(
-    System.getProperty("test.build.data","build/test/data"));
-
+  static final File TEST_DIR = PathUtils.getTestDir(TestEditLog.class);
+  
   /** An edits log with 3 edits from 0.20 - the result of
    * a fresh namesystem followed by hadoop fs -touchz /myfile */
   static final byte[] HADOOP20_SOME_EDITS =
@@ -569,6 +569,7 @@ public class TestEditLog {
       fail("should not be able to start");
     } catch (IOException e) {
       // expected
+      assertNotNull("Cause of exception should be ChecksumException", e.getCause());
       assertEquals("Cause of exception should be ChecksumException",
           ChecksumException.class, e.getCause().getClass());
     }

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

@@ -24,6 +24,7 @@ import static org.junit.Assert.assertTrue;
 import java.io.File;
 import java.io.IOException;
 
+import org.apache.hadoop.test.PathUtils;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.util.StringUtils;
 import org.junit.After;
@@ -34,8 +35,7 @@ import org.junit.Test;
  * Test the EditLogFileOutputStream
  */
 public class TestEditLogFileOutputStream {
-  private final static File TEST_DIR =
-      new File(System.getProperty("test.build.data", "/tmp"));
+  private final static File TEST_DIR = PathUtils.getTestDir(TestEditLogFileOutputStream.class);
   private static final File TEST_EDITS =
       new File(TEST_DIR, "testEditLogFileOutput.log");
   final static int MIN_PREALLOCATION_LENGTH =

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

@@ -38,6 +38,7 @@ import org.apache.hadoop.hdfs.MiniDFSCluster;
 import org.apache.hadoop.hdfs.server.namenode.JournalSet.JournalAndStream;
 import org.apache.hadoop.ipc.RemoteException;
 import org.apache.hadoop.test.GenericTestUtils;
+import org.apache.hadoop.test.PathUtils;
 import org.apache.hadoop.util.ExitUtil.ExitException;
 import org.junit.After;
 import org.junit.Before;
@@ -192,8 +193,7 @@ public class TestEditLogJournalFailures {
     Configuration conf = new HdfsConfiguration();
     String[] nameDirs = new String[4];
     for (int i = 0; i < nameDirs.length; i++) {
-      File nameDir = new File(System.getProperty("test.build.data"),
-          "name-dir" + i);
+      File nameDir = new File(PathUtils.getTestDir(getClass()), "name-dir" + i);
       nameDir.mkdirs();
       nameDirs[i] = nameDir.getAbsolutePath();
     }

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

@@ -47,6 +47,7 @@ import org.apache.hadoop.hdfs.server.common.Storage.StorageDirectory;
 import org.apache.hadoop.hdfs.server.namenode.FSEditLogLoader.EditLogValidation;
 import org.apache.hadoop.hdfs.server.namenode.NNStorage.NameNodeDirType;
 import org.apache.hadoop.io.IOUtils;
+import org.apache.hadoop.test.PathUtils;
 import org.apache.log4j.Level;
 import org.junit.Test;
 
@@ -60,8 +61,7 @@ public class TestFSEditLogLoader {
     ((Log4JLogger)FSEditLogLoader.LOG).getLogger().setLevel(Level.ALL);
   }
   
-  private static final File TEST_DIR = new File(
-      System.getProperty("test.build.data","build/test/data"));
+  private static final File TEST_DIR = PathUtils.getTestDir(TestFSEditLogLoader.class);
 
   private static final int NUM_DATA_NODES = 0;
   

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

@@ -91,7 +91,7 @@ import static org.mockito.Mockito.*;
  */
 public class TestFsck {
   static final String auditLogFile = System.getProperty("test.build.dir",
-      "build/test") + "/audit.log";
+      "build/test") + "/TestFsck-audit.log";
   
   // Pattern for: 
   // allowed=true ugi=name ip=/address cmd=FSCK src=/ dst=null perm=null
@@ -159,7 +159,8 @@ public class TestFsck {
       cluster.shutdown();
       
       // restart the cluster; bring up namenode but not the data nodes
-      cluster = new MiniDFSCluster.Builder(conf).numDataNodes(0).format(false).build();
+      cluster = new MiniDFSCluster.Builder(conf)
+          .numDataNodes(0).format(false).build();
       outStr = runFsck(conf, 1, true, "/");
       // expect the result is corrupt
       assertTrue(outStr.contains(NamenodeFsck.CORRUPT_STATUS));

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

@@ -39,6 +39,7 @@ import org.apache.hadoop.hdfs.DFSConfigKeys;
 import org.apache.hadoop.hdfs.HdfsConfiguration;
 import org.apache.hadoop.hdfs.MiniDFSCluster;
 import org.apache.hadoop.hdfs.server.namenode.NNStorage.NameNodeDirType;
+import org.apache.hadoop.test.PathUtils;
 import org.junit.Before;
 import org.junit.Test;
 
@@ -62,7 +63,7 @@ public class TestNameEditsConfigs {
 
   short replication = 3;
   private File base_dir = new File(
-      System.getProperty("test.build.data", "build/test/data"), "dfs/");
+      PathUtils.getTestDir(TestNameEditsConfigs.class), "dfs");
 
   @Before
   public void setUp() throws IOException {
@@ -70,7 +71,7 @@ public class TestNameEditsConfigs {
       throw new IOException("Cannot remove directory " + base_dir);
     }
   }
-
+  
   private void writeFile(FileSystem fileSys, Path name, int repl)
       throws IOException {
     FSDataOutputStream stm = fileSys.create(name, true, fileSys.getConf()

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

@@ -46,6 +46,7 @@ import org.apache.hadoop.hdfs.server.namenode.FSEditLogOp.DeleteOp;
 import org.apache.hadoop.hdfs.server.namenode.FSEditLogOp.OpInstanceCache;
 import org.apache.hadoop.hdfs.server.namenode.NNStorage.NameNodeDirType;
 import org.apache.hadoop.io.IOUtils;
+import org.apache.hadoop.test.PathUtils;
 import org.apache.hadoop.util.StringUtils;
 import org.junit.Test;
 
@@ -57,8 +58,7 @@ import com.google.common.collect.Sets;
 public class TestNameNodeRecovery {
   private static final Log LOG = LogFactory.getLog(TestNameNodeRecovery.class);
   private static StartupOption recoverStartOpt = StartupOption.RECOVER;
-  private static final File TEST_DIR = new File(
-      System.getProperty("test.build.data","build/test/data"));
+  private static final File TEST_DIR = PathUtils.getTestDir(TestNameNodeRecovery.class);
 
   static {
     recoverStartOpt.setForce(MetaRecoveryContext.FORCE_ALL);

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

@@ -33,12 +33,14 @@ import org.apache.hadoop.hdfs.DFSConfigKeys;
 import org.apache.hadoop.hdfs.MiniDFSCluster;
 import org.apache.hadoop.hdfs.server.namenode.FSNamesystem.NameNodeResourceMonitor;
 import org.apache.hadoop.hdfs.server.namenode.NameNodeResourceChecker.CheckedVolume;
+import org.apache.hadoop.test.PathUtils;
 import org.apache.hadoop.util.Time;
 import org.junit.Before;
 import org.junit.Test;
 import org.mockito.Mockito;
 
 public class TestNameNodeResourceChecker {
+  private final static File BASE_DIR = PathUtils.getTestDir(TestNameNodeResourceChecker.class);
   private Configuration conf;
   private File baseDir;
   private File nameDir;
@@ -46,8 +48,7 @@ public class TestNameNodeResourceChecker {
   @Before
   public void setUp () throws IOException {
     conf = new Configuration();
-    baseDir = new File(System.getProperty("test.build.data"));
-    nameDir = new File(baseDir, "resource-check-name-dir");
+    nameDir = new File(BASE_DIR, "resource-check-name-dir");
     nameDir.mkdirs();
     conf.set(DFSConfigKeys.DFS_NAMENODE_EDITS_DIR_KEY, nameDir.getAbsolutePath());
   }
@@ -141,8 +142,8 @@ public class TestNameNodeResourceChecker {
   @Test
   public void testChecking2NameDirsOnOneVolume() throws IOException {
     Configuration conf = new Configuration();
-    File nameDir1 = new File(System.getProperty("test.build.data"), "name-dir1");
-    File nameDir2 = new File(System.getProperty("test.build.data"), "name-dir2");
+    File nameDir1 = new File(BASE_DIR, "name-dir1");
+    File nameDir2 = new File(BASE_DIR, "name-dir2");
     nameDir1.mkdirs();
     nameDir2.mkdirs();
     conf.set(DFSConfigKeys.DFS_NAMENODE_EDITS_DIR_KEY,
@@ -162,7 +163,7 @@ public class TestNameNodeResourceChecker {
   @Test
   public void testCheckingExtraVolumes() throws IOException {
     Configuration conf = new Configuration();
-    File nameDir = new File(System.getProperty("test.build.data"), "name-dir");
+    File nameDir = new File(BASE_DIR, "name-dir");
     nameDir.mkdirs();
     conf.set(DFSConfigKeys.DFS_NAMENODE_EDITS_DIR_KEY, nameDir.getAbsolutePath());
     conf.set(DFSConfigKeys.DFS_NAMENODE_CHECKED_VOLUMES_KEY, nameDir.getAbsolutePath());
@@ -182,8 +183,8 @@ public class TestNameNodeResourceChecker {
   @Test
   public void testLowResourceVolumePolicy() throws IOException, URISyntaxException {
     Configuration conf = new Configuration();
-    File nameDir1 = new File(System.getProperty("test.build.data"), "name-dir1");
-    File nameDir2 = new File(System.getProperty("test.build.data"), "name-dir2");
+    File nameDir1 = new File(BASE_DIR, "name-dir1");
+    File nameDir2 = new File(BASE_DIR, "name-dir2");
     nameDir1.mkdirs();
     nameDir2.mkdirs();
     

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

@@ -59,6 +59,7 @@ import org.apache.hadoop.hdfs.server.protocol.NamenodeProtocols;
 import org.apache.hadoop.hdfs.util.MD5FileUtils;
 import org.apache.hadoop.io.MD5Hash;
 import org.apache.hadoop.test.GenericTestUtils;
+import org.apache.hadoop.test.PathUtils;
 import org.apache.hadoop.util.StringUtils;
 import org.apache.log4j.Logger;
 import org.junit.After;
@@ -419,8 +420,7 @@ public class TestStartup {
     Configuration conf = new Configuration();
     FileSystem.setDefaultUri(conf, "hdfs://localhost:0");
     conf.set(DFSConfigKeys.DFS_NAMENODE_HTTP_ADDRESS_KEY, "127.0.0.1:0");
-    File base_dir = new File(System.getProperty(
-        "test.build.data", "build/test/data"), "dfs/");
+    File base_dir = new File(PathUtils.getTestDir(getClass()), "dfs/");
     conf.set(DFSConfigKeys.DFS_NAMENODE_NAME_DIR_KEY,
         new File(base_dir, "name").getPath());
     conf.setBoolean(DFSConfigKeys.DFS_PERMISSIONS_ENABLED_KEY, false);

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

@@ -391,7 +391,8 @@ public class TestStorageRestore {
         (new File(path3, "current").getAbsolutePath()) : path3.toString();
 
     try {
-      cluster = new MiniDFSCluster.Builder(config).numDataNodes(0)
+      cluster = new MiniDFSCluster.Builder(config)
+          .numDataNodes(0)
           .manageNameDfsDirs(false).build();
       cluster.waitActive();
 

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

@@ -39,6 +39,7 @@ import org.apache.hadoop.hdfs.MiniDFSCluster;
 import org.apache.hadoop.http.HttpServer;
 import org.apache.hadoop.http.HttpServerFunctionalTest;
 import org.apache.hadoop.net.NetUtils;
+import org.apache.hadoop.test.PathUtils;
 import org.apache.hadoop.util.StringUtils;
 import org.junit.Test;
 import org.mockito.Mockito;
@@ -48,8 +49,7 @@ import com.google.common.collect.ImmutableList;
 
 public class TestTransferFsImage {
 
-  private static final File TEST_DIR = new File(
-      System.getProperty("test.build.data","build/test/data"));
+  private static final File TEST_DIR = PathUtils.getTestDir(TestTransferFsImage.class);
 
   /**
    * Regression test for HDFS-1997. Test that, if an exception

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

@@ -56,8 +56,8 @@ public class TestBootstrapStandby {
 
     MiniDFSNNTopology topology = new MiniDFSNNTopology()
       .addNameservice(new MiniDFSNNTopology.NSConf("ns1")
-        .addNN(new MiniDFSNNTopology.NNConf("nn1").setHttpPort(10001))
-        .addNN(new MiniDFSNNTopology.NNConf("nn2").setHttpPort(10002)));
+        .addNN(new MiniDFSNNTopology.NNConf("nn1").setHttpPort(20001))
+        .addNN(new MiniDFSNNTopology.NNConf("nn2").setHttpPort(20002)));
     
     cluster = new MiniDFSCluster.Builder(conf)
       .nnTopology(topology)

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

@@ -70,13 +70,13 @@ public class TestDFSZKFailoverController extends ClientBaseWithFixes {
         CommonConfigurationKeysPublic.IPC_CLIENT_CONNECTION_MAXIDLETIME_KEY,
         0);
     
-    conf.setInt(DFSConfigKeys.DFS_HA_ZKFC_PORT_KEY + ".ns1.nn1", 10003);
-    conf.setInt(DFSConfigKeys.DFS_HA_ZKFC_PORT_KEY + ".ns1.nn2", 10004);
+    conf.setInt(DFSConfigKeys.DFS_HA_ZKFC_PORT_KEY + ".ns1.nn1", 10023);
+    conf.setInt(DFSConfigKeys.DFS_HA_ZKFC_PORT_KEY + ".ns1.nn2", 10024);
 
     MiniDFSNNTopology topology = new MiniDFSNNTopology()
     .addNameservice(new MiniDFSNNTopology.NSConf("ns1")
-        .addNN(new MiniDFSNNTopology.NNConf("nn1").setIpcPort(10001))
-        .addNN(new MiniDFSNNTopology.NNConf("nn2").setIpcPort(10002)));
+        .addNN(new MiniDFSNNTopology.NNConf("nn1").setIpcPort(10021))
+        .addNN(new MiniDFSNNTopology.NNConf("nn2").setIpcPort(10022)));
     cluster = new MiniDFSCluster.Builder(conf)
         .nnTopology(topology)
         .numDataNodes(0)

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

@@ -124,8 +124,8 @@ public class TestEditLogTailer {
     // Have to specify IPC ports so the NNs can talk to each other.
     MiniDFSNNTopology topology = new MiniDFSNNTopology()
       .addNameservice(new MiniDFSNNTopology.NSConf("ns1")
-        .addNN(new MiniDFSNNTopology.NNConf("nn1").setIpcPort(10001))
-        .addNN(new MiniDFSNNTopology.NNConf("nn2").setIpcPort(10002)));
+        .addNN(new MiniDFSNNTopology.NNConf("nn1").setIpcPort(10031))
+        .addNN(new MiniDFSNNTopology.NNConf("nn2").setIpcPort(10032)));
 
     MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf)
       .nnTopology(topology)

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

@@ -76,8 +76,8 @@ public class TestFailureToReadEdits {
     
     MiniDFSNNTopology topology = new MiniDFSNNTopology()
       .addNameservice(new MiniDFSNNTopology.NSConf("ns1")
-        .addNN(new MiniDFSNNTopology.NNConf("nn1").setHttpPort(10001))
-        .addNN(new MiniDFSNNTopology.NNConf("nn2").setHttpPort(10002)));
+        .addNN(new MiniDFSNNTopology.NNConf("nn1").setHttpPort(10041))
+        .addNN(new MiniDFSNNTopology.NNConf("nn2").setHttpPort(10042)));
     cluster = new MiniDFSCluster.Builder(conf)
       .nnTopology(topology)
       .numDataNodes(0)

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

@@ -52,8 +52,8 @@ public class TestHAFsck {
     // need some HTTP ports
     MiniDFSNNTopology topology = new MiniDFSNNTopology()
       .addNameservice(new MiniDFSNNTopology.NSConf("ha-nn-uri-0")
-        .addNN(new MiniDFSNNTopology.NNConf("nn1").setHttpPort(10001))
-        .addNN(new MiniDFSNNTopology.NNConf("nn2").setHttpPort(10002)));
+        .addNN(new MiniDFSNNTopology.NNConf("nn1").setHttpPort(10051))
+        .addNN(new MiniDFSNNTopology.NNConf("nn2").setHttpPort(10052)));
     
     MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf)
       .nnTopology(topology)

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

@@ -89,8 +89,8 @@ public class TestStandbyCheckpoints {
 
     MiniDFSNNTopology topology = new MiniDFSNNTopology()
       .addNameservice(new MiniDFSNNTopology.NSConf("ns1")
-        .addNN(new MiniDFSNNTopology.NNConf("nn1").setHttpPort(10001))
-        .addNN(new MiniDFSNNTopology.NNConf("nn2").setHttpPort(10002)));
+        .addNN(new MiniDFSNNTopology.NNConf("nn1").setHttpPort(10061))
+        .addNN(new MiniDFSNNTopology.NNConf("nn2").setHttpPort(10062)));
     
     cluster = new MiniDFSCluster.Builder(conf)
       .nnTopology(topology)

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

@@ -35,6 +35,7 @@ import org.apache.hadoop.hdfs.DFSTestUtil;
 import org.apache.hadoop.hdfs.server.namenode.FSEditLogOpCodes;
 import org.apache.hadoop.hdfs.server.namenode.OfflineEditsViewerHelper;
 import org.apache.hadoop.hdfs.tools.offlineEditsViewer.OfflineEditsViewer.Flags;
+import org.apache.hadoop.test.PathUtils;
 import org.junit.Before;
 import org.junit.Test;
 
@@ -53,7 +54,7 @@ public class TestOfflineEditsViewer {
   }
 
   private static String buildDir =
-    System.getProperty("test.build.data", "build/test/data");
+    PathUtils.getTestDirName(TestOfflineEditsViewer.class);
 
   private static String cacheDir =
     System.getProperty("test.cache.data", "build/test/cache");

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

@@ -27,6 +27,7 @@ import java.io.FileReader;
 import java.io.IOException;
 
 import org.apache.hadoop.hdfs.tools.offlineImageViewer.ImageVisitor.ImageElement;
+import org.apache.hadoop.test.PathUtils;
 import org.junit.Test;
 
 /**
@@ -34,7 +35,7 @@ import org.junit.Test;
  * on predetermined inputs
  */
 public class TestDelimitedImageVisitor {
-  private static String ROOT = System.getProperty("test.build.data","/tmp");
+  private static String ROOT = PathUtils.getTestDirName(TestDelimitedImageVisitor.class);
   private static final String delim = "--";
   
   // Record an element in the visitor and build the expected line in the output

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

@@ -53,6 +53,7 @@ import org.apache.hadoop.hdfs.MiniDFSCluster;
 import org.apache.hadoop.hdfs.protocol.HdfsConstants.SafeModeAction;
 import org.apache.hadoop.hdfs.server.namenode.FSImageTestUtil;
 import org.apache.hadoop.security.token.Token;
+import org.apache.hadoop.test.PathUtils;
 import org.junit.AfterClass;
 import org.junit.BeforeClass;
 import org.junit.Test;
@@ -88,8 +89,7 @@ public class TestOfflineImageViewer {
   final static HashMap<String, FileStatus> writtenFiles = 
       new HashMap<String, FileStatus>();
   
-  private static String ROOT = System.getProperty("test.build.data",
-                                                  "build/test/data");
+  private static String ROOT = PathUtils.getTestDirName(TestOfflineImageViewer.class);
   
   // Create a populated namespace for later testing.  Save its contents to a
   // data structure and store its fsimage location.

hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/util/TestAtomicFileOutputStream.java

@@ -30,6 +30,7 @@ import java.io.OutputStream;
 
 import org.apache.hadoop.fs.FileUtil;
 import org.apache.hadoop.hdfs.DFSTestUtil;
+import org.apache.hadoop.test.PathUtils;
 import org.junit.Before;
 import org.junit.Test;
 
@@ -40,10 +41,7 @@ public class TestAtomicFileOutputStream {
   private static final String TEST_STRING = "hello world";
   private static final String TEST_STRING_2 = "goodbye world";
 
-  private static File BASE_DIR = new File(
-      System.getProperty("test.build.data", "build/test/data"));
-  private static File TEST_DIR = new File(BASE_DIR,
-      TestAtomicFileOutputStream.class.getName());
+  private static File TEST_DIR = PathUtils.getTestDir(TestAtomicFileOutputStream.class);
   
   private static File DST_FILE = new File(TEST_DIR, "test.txt");
   

hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/util/TestMD5FileUtils.java

@@ -29,14 +29,12 @@ import java.io.IOException;
 import org.apache.hadoop.fs.FileUtil;
 import org.apache.hadoop.hdfs.DFSTestUtil;
 import org.apache.hadoop.io.MD5Hash;
+import org.apache.hadoop.test.PathUtils;
 import org.junit.Before;
 import org.junit.Test;
 
 public class TestMD5FileUtils {
-  private static final File TEST_DIR_ROOT = new File(
-      System.getProperty("test.build.data","build/test/data"));
-  private static final File TEST_DIR = new File(TEST_DIR_ROOT,
-      "TestMD5FileUtils");
+  private static final File TEST_DIR = PathUtils.getTestDir(TestMD5FileUtils.class);
   private static final File TEST_FILE = new File(TEST_DIR,
       "testMd5File.dat");
   

hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/web/TestWebHdfsTimeouts.java

@@ -58,7 +58,6 @@ public class TestWebHdfsTimeouts {
 
   private static final int CLIENTS_TO_CONSUME_BACKLOG = 100;
   private static final int CONNECTION_BACKLOG = 1;
-  private static final int INITIAL_SOCKET_TIMEOUT = URLUtils.SOCKET_TIMEOUT;
   private static final int SHORT_SOCKET_TIMEOUT = 5;
   private static final int TEST_TIMEOUT = 10000;
 
@@ -67,20 +66,22 @@ public class TestWebHdfsTimeouts {
   private InetSocketAddress nnHttpAddress;
   private ServerSocket serverSocket;
   private Thread serverThread;
+  private URLConnectionFactory connectionFactory = new URLConnectionFactory(SHORT_SOCKET_TIMEOUT);
 
   @Before
   public void setUp() throws Exception {
-    URLUtils.SOCKET_TIMEOUT = SHORT_SOCKET_TIMEOUT;
     Configuration conf = WebHdfsTestUtil.createConf();
     nnHttpAddress = NameNode.getHttpAddress(conf);
     serverSocket = new ServerSocket(nnHttpAddress.getPort(), CONNECTION_BACKLOG);
     fs = WebHdfsTestUtil.getWebHdfsFileSystem(conf);
+    fs.connectionFactory = connectionFactory;
     clients = new ArrayList<SocketChannel>();
     serverThread = null;
   }
 
   @After
   public void tearDown() throws Exception {
+    fs.connectionFactory = URLConnectionFactory.DEFAULT_CONNECTION_FACTORY;
     IOUtils.cleanup(LOG, clients.toArray(new SocketChannel[clients.size()]));
     IOUtils.cleanup(LOG, fs);
     if (serverSocket != null) {
@@ -240,7 +241,7 @@ public class TestWebHdfsTimeouts {
    */
   private void startSingleTemporaryRedirectResponseThread(
       final boolean consumeConnectionBacklog) {
-    URLUtils.SOCKET_TIMEOUT = INITIAL_SOCKET_TIMEOUT;
+    fs.connectionFactory = URLConnectionFactory.DEFAULT_CONNECTION_FACTORY;
     serverThread = new Thread() {
       @Override
       public void run() {
@@ -254,7 +255,7 @@ public class TestWebHdfsTimeouts {
           clientSocket = serverSocket.accept();
 
           // Immediately setup conditions for subsequent connections.
-          URLUtils.SOCKET_TIMEOUT = SHORT_SOCKET_TIMEOUT;
+          fs.connectionFactory = connectionFactory;
           if (consumeConnectionBacklog) {
             consumeConnectionBacklog();
           }

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

@@ -0,0 +1,54 @@
+/**
+ * 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.test;
+
+import java.io.File;
+
+import org.apache.hadoop.fs.Path;
+
+public class PathUtils {
+
+  public static Path getTestPath(Class<?> caller) {
+    return getTestPath(caller, true);
+  }
+
+  public static Path getTestPath(Class<?> caller, boolean create) {
+    return new Path(getTestDirName(caller));
+  }
+
+  public static File getTestDir(Class<?> caller) {
+    return getTestDir(caller, true);
+  }
+  
+  public static File getTestDir(Class<?> caller, boolean create) {
+    File dir = new File(System.getProperty("test.build.data", "/tmp"), caller.getSimpleName());
+    if (create) {
+      dir.mkdirs();
+    }
+    return dir;
+  }
+
+  public static String getTestDirName(Class<?> caller) {
+    return getTestDirName(caller, true);
+  }
+  
+  public static String getTestDirName(Class<?> caller, boolean create) {
+    return getTestDir(caller, create).getAbsolutePath();
+  }
+    
+}

hadoop-project/pom.xml

@@ -712,7 +712,7 @@
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-surefire-plugin</artifactId>
-          <version>2.12.3</version>
+          <version>2.16</version>
         </plugin>
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>
@@ -864,7 +864,7 @@
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-surefire-plugin</artifactId>
         <configuration>
-          <forkMode>always</forkMode>
+          <reuseForks>false</reuseForks>
           <forkedProcessTimeoutInSeconds>900</forkedProcessTimeoutInSeconds>
           <argLine>-Xmx1024m -XX:+HeapDumpOnOutOfMemoryError</argLine>
           <environmentVariables>
@@ -1039,23 +1039,5 @@
         </plugins>
       </build>
     </profile>
-    <!-- Copied into specific modules supporting parallel testing. Will be uncommented as soon as all modules support this.
-    <profile>
-      <id>parallel-tests</id>
-      <build>
-        <plugins>
-          <plugin>
-            <groupId>org.apache.maven.plugins</groupId>
-            <artifactId>maven-surefire-plugin</artifactId>
-            <configuration>
-              <forkMode>perthread</forkMode>
-              <threadCount>${testsThreadCount}</threadCount>
-              <parallel>classes</parallel>
-            </configuration>
-          </plugin>
-        </plugins>
-      </build>
-    </profile>
-    -->
   </profiles>
 </project>