Package org.apache.hadoop.hdfs.protocol.datatransfer

Examples of org.apache.hadoop.hdfs.protocol.datatransfer.IOStreamPair

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          long writeTimeout = dfsClient.getDatanodeWriteTimeout(nodes.length);
         
          OutputStream unbufOut = NetUtils.getOutputStream(s, writeTimeout);
          InputStream unbufIn = NetUtils.getInputStream(s);
          if (dfsClient.shouldEncryptData()) {
            IOStreamPair encryptedStreams =
                DataTransferEncryptor.getEncryptedStreams(unbufOut,
                    unbufIn, dfsClient.getDataEncryptionKey());
            unbufOut = encryptedStreams.out;
            unbufIn = encryptedStreams.in;
          }
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        DataOutputStream out = null;
        DataInputStream in = null;
       
        try {
          //connect to a datanode
          IOStreamPair pair = connectToDN(socketFactory, connectToDnViaHostname,
              encryptionKey, datanodes[j], timeout);
          out = new DataOutputStream(new BufferedOutputStream(pair.out,
              HdfsConstants.SMALL_BUFFER_SIZE));
          in = new DataInputStream(pair.in);
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      NetUtils.connect(sock, NetUtils.createSocketAddr(dnAddr), timeout);
      sock.setSoTimeout(timeout);
 
      OutputStream unbufOut = NetUtils.getOutputStream(sock);
      InputStream unbufIn = NetUtils.getInputStream(sock);
      IOStreamPair ret;
      if (encryptionKey != null) {
        ret = DataTransferEncryptor.getEncryptedStreams(
                unbufOut, unbufIn, encryptionKey);
      } else {
        ret = new IOStreamPair(unbufIn, unbufOut);       
      }
      success = true;
      return ret;
    } finally {
      if (!success) {
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  private static int inferChecksumTypeByReading(
      String clientName, SocketFactory socketFactory, int socketTimeout,
      LocatedBlock lb, DatanodeInfo dn,
      DataEncryptionKey encryptionKey, boolean connectToDnViaHostname)
      throws IOException {
    IOStreamPair pair = connectToDN(socketFactory, connectToDnViaHostname,
        encryptionKey, dn, socketTimeout);

    try {
      DataOutputStream out = new DataOutputStream(new BufferedOutputStream(pair.out,
          HdfsConstants.SMALL_BUFFER_SIZE));
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Related Classes of org.apache.hadoop.hdfs.protocol.datatransfer.IOStreamPair

  • org.apache.hadoop.hdfs.BlockReaderFactory
  • org.apache.hadoop.hdfs.DFSClient
  • org.apache.hadoop.hdfs.DFSInputStream
  • org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer
  • org.apache.hadoop.hdfs.net.EncryptedPeer
  • org.apache.hadoop.hdfs.server.balancer.Balancer$PendingBlockMove
  • org.apache.hadoop.hdfs.server.datanode.DataNode$DataTransfer
  • org.apache.hadoop.hdfs.server.datanode.DataXceiver
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