Package org.apache.hadoop.hdfs.protocol

Examples of org.apache.hadoop.hdfs.protocol.ClientDatanodeProtocol

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    return 0;
  }
 
  private int refreshNamenodes(String[] argv, int i) throws IOException {
    String datanode = argv[i];
    ClientDatanodeProtocol refreshProtocol = getDataNodeProxy(datanode);
    refreshProtocol.refreshNamenodes();
   
    return 0;
  }
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      return 0;
    }
    int replicaNotFoundCount = locatedblock.getLocations().length;
   
    for(DatanodeInfo datanode : locatedblock.getLocations()) {
      ClientDatanodeProtocol cdp = null;
     
      try {
        cdp = DFSUtil.createClientDatanodeProtocolProxy(
        datanode, dfsClient.conf, dfsClient.getConf().socketTimeout, locatedblock);
       
        final long n = cdp.getReplicaVisibleLength(locatedblock.getBlock());
       
        if (n >= 0) {
          return n;
        }
      }
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      ExtendedBlock blk, DatanodeInfo node, Configuration conf, int timeout,
      Token<BlockTokenIdentifier> token, boolean connectToDnViaHostname)
      throws IOException {
    LocalDatanodeInfo localDatanodeInfo = getLocalDatanodeInfo(node.getIpcPort());
    BlockLocalPathInfo pathinfo = null;
    ClientDatanodeProtocol proxy = localDatanodeInfo.getDatanodeProxy(ugi, node,
        conf, timeout, connectToDnViaHostname);
    try {
      // make RPC to local datanode to find local pathnames of blocks
      pathinfo = proxy.getBlockLocalPathInfo(blk, token);
      if (pathinfo != null) {
        if (LOG.isDebugEnabled()) {
          LOG.debug("Cached location of block " + blk + " as " + pathinfo);
        }
        localDatanodeInfo.setBlockLocalPathInfo(blk, pathinfo);
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    DatanodeID fakeDnId = DFSTestUtil.getLocalDatanodeID(addr.getPort());
   
    ExtendedBlock b = new ExtendedBlock("fake-pool", new Block(12345L));
    LocatedBlock fakeBlock = new LocatedBlock(b, new DatanodeInfo[0]);

    ClientDatanodeProtocol proxy = null;

    try {
      proxy = DFSUtil.createClientDatanodeProtocolProxy(
          fakeDnId, conf, 500, false, fakeBlock);

      proxy.getReplicaVisibleLength(new ExtendedBlock("bpid", 1));
      fail ("Did not get expected exception: SocketTimeoutException");
    } catch (SocketTimeoutException e) {
      LOG.info("Got the expected Exception: SocketTimeoutException");
    } finally {
      if (proxy != null) {
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    final InetSocketAddress addr = NetUtils.getConnectAddress(server);
    final UserGroupInformation ticket = UserGroupInformation
        .createRemoteUser(block3.toString());
    ticket.addToken(token);

    ClientDatanodeProtocol proxy = null;
    try {
      proxy = DFSUtil.createClientDatanodeProtocolProxy(addr, ticket, conf,
          NetUtils.getDefaultSocketFactory(conf));
      assertEquals(block3.getBlockId(), proxy.getReplicaVisibleLength(block3));
    } finally {
      server.stop();
      if (proxy != null) {
        RPC.stopProxy(proxy);
      }
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    // Create another RPC proxy with the same configuration - this will never
    // attempt to connect anywhere -- but it causes the refcount on the
    // RPC "Client" object to stay above 0 such that RPC.stopProxy doesn't
    // actually close the TCP connections to the real target DN.
    ClientDatanodeProtocol proxyToNoWhere = RPC.getProxy(
        ClientDatanodeProtocol.class, ClientDatanodeProtocol.versionID,
        new InetSocketAddress("1.1.1.1", 1),
        UserGroupInformation.createRemoteUser("junk"), conf,
        NetUtils.getDefaultSocketFactory(conf));

    ClientDatanodeProtocol proxy = null;

    int fdsAtStart = countOpenFileDescriptors();
    try {
      long endTime = Time.now() + 3000;
      while (Time.now() < endTime) {
        proxy = DFSUtil.createClientDatanodeProtocolProxy(fakeDnId, conf, 1000,
            false, fakeBlock);
        assertEquals(block3.getBlockId(), proxy.getReplicaVisibleLength(block3));
        if (proxy != null) {
          RPC.stopProxy(proxy);
        }
        LOG.info("Num open fds:" + countOpenFileDescriptors());
      }
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    // For datanode proxy the server principal should be DN's one.
    conf.set(CommonConfigurationKeys.HADOOP_SECURITY_SERVICE_USER_NAME_KEY,
        conf.get(DFSConfigKeys.DFS_DATANODE_USER_NAME_KEY, ""));

    // Create the client
    ClientDatanodeProtocol dnProtocol =    
        DFSUtil.createClientDatanodeProtocolProxy(datanodeAddr, getUGI(), conf,
            NetUtils.getSocketFactory(conf, ClientDatanodeProtocol.class));
    return dnProtocol;
  }
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            NetUtils.getSocketFactory(conf, ClientDatanodeProtocol.class));
    return dnProtocol;
  }
 
  private int deleteBlockPool(String[] argv, int i) throws IOException {
    ClientDatanodeProtocol dnProxy = getDataNodeProxy(argv[i]);
    boolean force = false;
    if (argv.length-1 == i+2) {
      if ("force".equals(argv[i+2])) {
        force = true;
      } else {
        printUsage("-deleteBlockPool");
        return -1;
      }
    }
    dnProxy.deleteBlockPool(argv[i+1], force);
    return 0;
  }
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    return 0;
  }
 
  private int refreshNamenodes(String[] argv, int i) throws IOException {
    String datanode = argv[i];
    ClientDatanodeProtocol refreshProtocol = getDataNodeProxy(datanode);
    refreshProtocol.refreshNamenodes();
   
    return 0;
  }
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  private long readBlockLength(LocatedBlock locatedblock) throws IOException {
    assert locatedblock != null : "LocatedBlock cannot be null";
    int replicaNotFoundCount = locatedblock.getLocations().length;
   
    for(DatanodeInfo datanode : locatedblock.getLocations()) {
      ClientDatanodeProtocol cdp = null;
     
      try {
        cdp = DFSUtil.createClientDatanodeProtocolProxy(datanode,
            dfsClient.getConfiguration(), dfsClient.getConf().socketTimeout,
            dfsClient.getConf().connectToDnViaHostname, locatedblock);
       
        final long n = cdp.getReplicaVisibleLength(locatedblock.getBlock());
       
        if (n >= 0) {
          return n;
        }
      }
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