Java Code Examples for org.apache.hadoop.hdfs.server.namenode.NameNode#DEFAULT_PORT

The following examples show how to use org.apache.hadoop.hdfs.server.namenode.NameNode#DEFAULT_PORT . These examples are extracted from open source projects. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source Project: hadoop   File: DelegationTokenSelector.java    License: Apache License 2.0 6 votes vote down vote up
/**
 * Select the delegation token for hdfs.  The port will be rewritten to
 * the port of hdfs.service.host_$nnAddr, or the default rpc namenode port. 
 * This method should only be called by non-hdfs filesystems that do not
 * use the rpc port to acquire tokens.  Ex. webhdfs, hftp 
 * @param nnUri of the remote namenode
 * @param tokens as a collection
 * @param conf hadoop configuration
 * @return Token
 */
public Token<DelegationTokenIdentifier> selectToken(
    final URI nnUri, Collection<Token<?>> tokens,
    final Configuration conf) {
  // this guesses the remote cluster's rpc service port.
  // the current token design assumes it's the same as the local cluster's
  // rpc port unless a config key is set.  there should be a way to automatic
  // and correctly determine the value
  Text serviceName = SecurityUtil.buildTokenService(nnUri);
  final String nnServiceName = conf.get(SERVICE_NAME_KEY + serviceName);
  
  int nnRpcPort = NameNode.DEFAULT_PORT;
  if (nnServiceName != null) {
    nnRpcPort = NetUtils.createSocketAddr(nnServiceName, nnRpcPort).getPort(); 
  }
  // use original hostname from the uri to avoid unintentional host resolving
  serviceName = SecurityUtil.buildTokenService(
  		NetUtils.createSocketAddrForHost(nnUri.getHost(), nnRpcPort));
  
  return selectToken(serviceName, tokens);
}
 
Example 2
Source Project: hadoop   File: TestDFSClientFailover.java    License: Apache License 2.0 6 votes vote down vote up
/**
 * Make sure that client failover works when an active NN dies and the standby
 * takes over.
 */
@Test
public void testDfsClientFailover() throws IOException, URISyntaxException {
  FileSystem fs = HATestUtil.configureFailoverFs(cluster, conf);
  
  DFSTestUtil.createFile(fs, TEST_FILE,
      FILE_LENGTH_TO_VERIFY, (short)1, 1L);
  
  assertEquals(fs.getFileStatus(TEST_FILE).getLen(), FILE_LENGTH_TO_VERIFY);
  cluster.shutdownNameNode(0);
  cluster.transitionToActive(1);
  assertEquals(fs.getFileStatus(TEST_FILE).getLen(), FILE_LENGTH_TO_VERIFY);
  
  // Check that it functions even if the URL becomes canonicalized
  // to include a port number.
  Path withPort = new Path("hdfs://" +
      HATestUtil.getLogicalHostname(cluster) + ":" +
      NameNode.DEFAULT_PORT + "/" + TEST_FILE.toUri().getPath());
  FileSystem fs2 = withPort.getFileSystem(fs.getConf());
  assertTrue(fs2.exists(withPort));

  fs.close();
}
 
Example 3
Source Project: big-c   File: DelegationTokenSelector.java    License: Apache License 2.0 6 votes vote down vote up
/**
 * Select the delegation token for hdfs.  The port will be rewritten to
 * the port of hdfs.service.host_$nnAddr, or the default rpc namenode port. 
 * This method should only be called by non-hdfs filesystems that do not
 * use the rpc port to acquire tokens.  Ex. webhdfs, hftp 
 * @param nnUri of the remote namenode
 * @param tokens as a collection
 * @param conf hadoop configuration
 * @return Token
 */
public Token<DelegationTokenIdentifier> selectToken(
    final URI nnUri, Collection<Token<?>> tokens,
    final Configuration conf) {
  // this guesses the remote cluster's rpc service port.
  // the current token design assumes it's the same as the local cluster's
  // rpc port unless a config key is set.  there should be a way to automatic
  // and correctly determine the value
  Text serviceName = SecurityUtil.buildTokenService(nnUri);
  final String nnServiceName = conf.get(SERVICE_NAME_KEY + serviceName);
  
  int nnRpcPort = NameNode.DEFAULT_PORT;
  if (nnServiceName != null) {
    nnRpcPort = NetUtils.createSocketAddr(nnServiceName, nnRpcPort).getPort(); 
  }
  // use original hostname from the uri to avoid unintentional host resolving
  serviceName = SecurityUtil.buildTokenService(
  		NetUtils.createSocketAddrForHost(nnUri.getHost(), nnRpcPort));
  
  return selectToken(serviceName, tokens);
}
 
Example 4
Source Project: big-c   File: TestDFSClientFailover.java    License: Apache License 2.0 6 votes vote down vote up
/**
 * Make sure that client failover works when an active NN dies and the standby
 * takes over.
 */
@Test
public void testDfsClientFailover() throws IOException, URISyntaxException {
  FileSystem fs = HATestUtil.configureFailoverFs(cluster, conf);
  
  DFSTestUtil.createFile(fs, TEST_FILE,
      FILE_LENGTH_TO_VERIFY, (short)1, 1L);
  
  assertEquals(fs.getFileStatus(TEST_FILE).getLen(), FILE_LENGTH_TO_VERIFY);
  cluster.shutdownNameNode(0);
  cluster.transitionToActive(1);
  assertEquals(fs.getFileStatus(TEST_FILE).getLen(), FILE_LENGTH_TO_VERIFY);
  
  // Check that it functions even if the URL becomes canonicalized
  // to include a port number.
  Path withPort = new Path("hdfs://" +
      HATestUtil.getLogicalHostname(cluster) + ":" +
      NameNode.DEFAULT_PORT + "/" + TEST_FILE.toUri().getPath());
  FileSystem fs2 = withPort.getFileSystem(fs.getConf());
  assertTrue(fs2.exists(withPort));

  fs.close();
}
 
Example 5
Source Project: RDFS   File: DistributedFileSystem.java    License: Apache License 2.0 6 votes vote down vote up
/** Normalize paths that explicitly specify the default port. */
public Path makeQualified(Path path) {
  URI thisUri = this.getUri();
  URI thatUri = path.toUri();
  String thatAuthority = thatUri.getAuthority();
  if (thatUri.getScheme() != null
      && thatUri.getScheme().equalsIgnoreCase(thisUri.getScheme())
      && thatUri.getPort() == NameNode.DEFAULT_PORT
      && thisUri.getPort() == -1
      && thatAuthority.substring(0,thatAuthority.indexOf(":"))
      .equalsIgnoreCase(thisUri.getAuthority())) {
    path = new Path(thisUri.getScheme(), thisUri.getAuthority(),
                    thatUri.getPath());
  }
  return super.makeQualified(path);
}
 
Example 6
/** Normalize paths that explicitly specify the default port. */
public Path makeQualified(Path path) {
  URI thisUri = this.getUri();
  URI thatUri = path.toUri();
  String thatAuthority = thatUri.getAuthority();
  if (thatUri.getScheme() != null
      && thatUri.getScheme().equalsIgnoreCase(thisUri.getScheme())
      && thatUri.getPort() == NameNode.DEFAULT_PORT
      && thisUri.getPort() == -1
      && thatAuthority.substring(0,thatAuthority.indexOf(":"))
      .equalsIgnoreCase(thisUri.getAuthority())) {
    path = new Path(thisUri.getScheme(), thisUri.getAuthority(),
                    thatUri.getPath());
  }
  return super.makeQualified(path);
}
 
Example 7
Source Project: hadoop   File: Hdfs.java    License: Apache License 2.0 5 votes vote down vote up
/**
 * This constructor has the signature needed by
 * {@link AbstractFileSystem#createFileSystem(URI, Configuration)}
 * 
 * @param theUri which must be that of Hdfs
 * @param conf configuration
 * @throws IOException
 */
Hdfs(final URI theUri, final Configuration conf) throws IOException, URISyntaxException {
  super(theUri, HdfsConstants.HDFS_URI_SCHEME, true, NameNode.DEFAULT_PORT);

  if (!theUri.getScheme().equalsIgnoreCase(HdfsConstants.HDFS_URI_SCHEME)) {
    throw new IllegalArgumentException("Passed URI's scheme is not for Hdfs");
  }
  String host = theUri.getHost();
  if (host == null) {
    throw new IOException("Incomplete HDFS URI, no host: " + theUri);
  }

  this.dfs = new DFSClient(theUri, conf, getStatistics());
}
 
Example 8
Source Project: big-c   File: Hdfs.java    License: Apache License 2.0 5 votes vote down vote up
/**
 * This constructor has the signature needed by
 * {@link AbstractFileSystem#createFileSystem(URI, Configuration)}
 * 
 * @param theUri which must be that of Hdfs
 * @param conf configuration
 * @throws IOException
 */
Hdfs(final URI theUri, final Configuration conf) throws IOException, URISyntaxException {
  super(theUri, HdfsConstants.HDFS_URI_SCHEME, true, NameNode.DEFAULT_PORT);

  if (!theUri.getScheme().equalsIgnoreCase(HdfsConstants.HDFS_URI_SCHEME)) {
    throw new IllegalArgumentException("Passed URI's scheme is not for Hdfs");
  }
  String host = theUri.getHost();
  if (host == null) {
    throw new IOException("Incomplete HDFS URI, no host: " + theUri);
  }

  this.dfs = new DFSClient(theUri, conf, getStatistics());
}
 
Example 9
Source Project: examples   File: PathParts.java    License: Apache License 2.0 5 votes vote down vote up
public int getPort() {
  int port = normalizedPath.toUri().getPort();
  if (port == -1) {
    port = fs.getWorkingDirectory().toUri().getPort();
    if (port == -1) {
      port = NameNode.DEFAULT_PORT;
    }
  }
  return port;
}
 
Example 10
Source Project: RDFS   File: DistributedFileSystem.java    License: Apache License 2.0 5 votes vote down vote up
/** Permit paths which explicitly specify the default port. */
protected void checkPath(Path path) {
  URI thisUri = this.getUri();
  URI thatUri = path.toUri();
  String thatAuthority = thatUri.getAuthority();
  if (thatUri.getScheme() != null
      && thatUri.getScheme().equalsIgnoreCase(thisUri.getScheme())
      && thatUri.getPort() == NameNode.DEFAULT_PORT
      && thisUri.getPort() == -1
      && thatAuthority.substring(0,thatAuthority.indexOf(":"))
      .equalsIgnoreCase(thisUri.getAuthority()))
    return;
  super.checkPath(path);
}
 
Example 11
/** Permit paths which explicitly specify the default port. */
protected void checkPath(Path path) {
  URI thisUri = this.getUri();
  URI thatUri = path.toUri();
  String thatAuthority = thatUri.getAuthority();
  if (thatUri.getScheme() != null
      && thatUri.getScheme().equalsIgnoreCase(thisUri.getScheme())
      && thatUri.getPort() == NameNode.DEFAULT_PORT
      && thisUri.getPort() == -1
      && thatAuthority.substring(0,thatAuthority.indexOf(":"))
      .equalsIgnoreCase(thisUri.getAuthority()))
    return;
  super.checkPath(path);
}
 
Example 12
Source Project: hadoop   File: Hdfs.java    License: Apache License 2.0 4 votes vote down vote up
@Override
public int getUriDefaultPort() {
  return NameNode.DEFAULT_PORT;
}
 
Example 13
Source Project: hadoop   File: NameNodeProxies.java    License: Apache License 2.0 4 votes vote down vote up
/** Creates the Failover proxy provider instance*/
@VisibleForTesting
public static <T> AbstractNNFailoverProxyProvider<T> createFailoverProxyProvider(
    Configuration conf, URI nameNodeUri, Class<T> xface, boolean checkPort,
    AtomicBoolean fallbackToSimpleAuth) throws IOException {
  Class<FailoverProxyProvider<T>> failoverProxyProviderClass = null;
  AbstractNNFailoverProxyProvider<T> providerNN;
  Preconditions.checkArgument(
      xface.isAssignableFrom(NamenodeProtocols.class),
      "Interface %s is not a NameNode protocol", xface);
  try {
    // Obtain the class of the proxy provider
    failoverProxyProviderClass = getFailoverProxyProviderClass(conf,
        nameNodeUri);
    if (failoverProxyProviderClass == null) {
      return null;
    }
    // Create a proxy provider instance.
    Constructor<FailoverProxyProvider<T>> ctor = failoverProxyProviderClass
        .getConstructor(Configuration.class, URI.class, Class.class);
    FailoverProxyProvider<T> provider = ctor.newInstance(conf, nameNodeUri,
        xface);

    // If the proxy provider is of an old implementation, wrap it.
    if (!(provider instanceof AbstractNNFailoverProxyProvider)) {
      providerNN = new WrappedFailoverProxyProvider<T>(provider);
    } else {
      providerNN = (AbstractNNFailoverProxyProvider<T>)provider;
    }
  } catch (Exception e) {
    String message = "Couldn't create proxy provider " + failoverProxyProviderClass;
    if (LOG.isDebugEnabled()) {
      LOG.debug(message, e);
    }
    if (e.getCause() instanceof IOException) {
      throw (IOException) e.getCause();
    } else {
      throw new IOException(message, e);
    }
  }

  // Check the port in the URI, if it is logical.
  if (checkPort && providerNN.useLogicalURI()) {
    int port = nameNodeUri.getPort();
    if (port > 0 && port != NameNode.DEFAULT_PORT) {
      // Throwing here without any cleanup is fine since we have not
      // actually created the underlying proxies yet.
      throw new IOException("Port " + port + " specified in URI "
          + nameNodeUri + " but host '" + nameNodeUri.getHost()
          + "' is a logical (HA) namenode"
          + " and does not use port information.");
    }
  }
  providerNN.setFallbackToSimpleAuth(fallbackToSimpleAuth);
  return providerNN;
}
 
Example 14
Source Project: hadoop   File: DistributedFileSystem.java    License: Apache License 2.0 4 votes vote down vote up
@Override
protected int getDefaultPort() {
  return NameNode.DEFAULT_PORT;
}
 
Example 15
Source Project: big-c   File: Hdfs.java    License: Apache License 2.0 4 votes vote down vote up
@Override
public int getUriDefaultPort() {
  return NameNode.DEFAULT_PORT;
}
 
Example 16
Source Project: big-c   File: NameNodeProxies.java    License: Apache License 2.0 4 votes vote down vote up
/** Creates the Failover proxy provider instance*/
@VisibleForTesting
public static <T> AbstractNNFailoverProxyProvider<T> createFailoverProxyProvider(
    Configuration conf, URI nameNodeUri, Class<T> xface, boolean checkPort,
    AtomicBoolean fallbackToSimpleAuth) throws IOException {
  Class<FailoverProxyProvider<T>> failoverProxyProviderClass = null;
  AbstractNNFailoverProxyProvider<T> providerNN;
  Preconditions.checkArgument(
      xface.isAssignableFrom(NamenodeProtocols.class),
      "Interface %s is not a NameNode protocol", xface);
  try {
    // Obtain the class of the proxy provider
    failoverProxyProviderClass = getFailoverProxyProviderClass(conf,
        nameNodeUri);
    if (failoverProxyProviderClass == null) {
      return null;
    }
    // Create a proxy provider instance.
    Constructor<FailoverProxyProvider<T>> ctor = failoverProxyProviderClass
        .getConstructor(Configuration.class, URI.class, Class.class);
    FailoverProxyProvider<T> provider = ctor.newInstance(conf, nameNodeUri,
        xface);

    // If the proxy provider is of an old implementation, wrap it.
    if (!(provider instanceof AbstractNNFailoverProxyProvider)) {
      providerNN = new WrappedFailoverProxyProvider<T>(provider);
    } else {
      providerNN = (AbstractNNFailoverProxyProvider<T>)provider;
    }
  } catch (Exception e) {
    String message = "Couldn't create proxy provider " + failoverProxyProviderClass;
    if (LOG.isDebugEnabled()) {
      LOG.debug(message, e);
    }
    if (e.getCause() instanceof IOException) {
      throw (IOException) e.getCause();
    } else {
      throw new IOException(message, e);
    }
  }

  // Check the port in the URI, if it is logical.
  if (checkPort && providerNN.useLogicalURI()) {
    int port = nameNodeUri.getPort();
    if (port > 0 && port != NameNode.DEFAULT_PORT) {
      // Throwing here without any cleanup is fine since we have not
      // actually created the underlying proxies yet.
      throw new IOException("Port " + port + " specified in URI "
          + nameNodeUri + " but host '" + nameNodeUri.getHost()
          + "' is a logical (HA) namenode"
          + " and does not use port information.");
    }
  }
  providerNN.setFallbackToSimpleAuth(fallbackToSimpleAuth);
  return providerNN;
}
 
Example 17
Source Project: big-c   File: DistributedFileSystem.java    License: Apache License 2.0 4 votes vote down vote up
@Override
protected int getDefaultPort() {
  return NameNode.DEFAULT_PORT;
}