Package org.apache.hadoop.hdfs.protocol.proto.DataTransferProtos

Examples of org.apache.hadoop.hdfs.protocol.proto.DataTransferProtos.BlockOpResponseProto

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        }
       
        //transfer RBW
        final ExtendedBlock b = new ExtendedBlock(bpid, oldrbw.getBlockId(), oldrbw.getBytesAcked(),
            oldrbw.getGenerationStamp());
        final BlockOpResponseProto s = DFSTestUtil.transferRbw(
            b, DFSClientAdapter.getDFSClient(fs), oldnodeinfo, newnodeinfo);
        Assert.assertEquals(Status.SUCCESS, s.getStatus());
      }

      //check new rbw
      final ReplicaBeingWritten newrbw = getRbw(newnode, bpid);
      LOG.info("newrbw = " + newrbw);
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                + Op.BLOCK_CHECKSUM + ", block=" + block);
          }
          // get block MD5
          new Sender(out).blockChecksum(block, lb.getBlockToken());

          final BlockOpResponseProto reply =
            BlockOpResponseProto.parseFrom(HdfsProtoUtil.vintPrefixed(in));

          if (reply.getStatus() != Status.SUCCESS) {
            if (reply.getStatus() == Status.ERROR_ACCESS_TOKEN
                && i > lastRetriedIndex) {
              if (LOG.isDebugEnabled()) {
                LOG.debug("Got access token error in response to OP_BLOCK_CHECKSUM "
                    + "for file " + src + " for block " + block
                    + " from datanode " + datanodes[j]
                    + ". Will retry the block once.");
              }
              lastRetriedIndex = i;
              done = true; // actually it's not done; but we'll retry
              i--; // repeat at i-th block
              refetchBlocks = true;
              break;
            } else {
              throw new IOException("Bad response " + reply + " for block "
                  + block + " from datanode " + datanodes[j]);
            }
          }
         
          OpBlockChecksumResponseProto checksumData =
            reply.getChecksumResponse();

          //read byte-per-checksum
          final int bpc = checksumData.getBytesPerCrc();
          if (i == 0) { //first block
            bytesPerCRC = bpc;
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          mirrorOut.flush();

          // read connect ack (only for clients, not for replication req)
          if (isClient) {
            BlockOpResponseProto connectAck =
              BlockOpResponseProto.parseFrom(HdfsProtoUtil.vintPrefixed(mirrorIn));
            mirrorInStatus = connectAck.getStatus();
            firstBadLink = connectAck.getFirstBadLink();
            if (LOG.isDebugEnabled() || mirrorInStatus != SUCCESS) {
              LOG.info("Datanode " + targets.length +
                       " got response for connect ack " +
                       " from downstream datanode with firstbadlink as " +
                       firstBadLink);
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      new Sender(proxyOut).copyBlock(block, blockToken);

      // receive the response from the proxy
      proxyReply = new DataInputStream(new BufferedInputStream(
          NetUtils.getInputStream(proxySock), HdfsConstants.IO_FILE_BUFFER_SIZE));
      BlockOpResponseProto copyResponse = BlockOpResponseProto.parseFrom(
          HdfsProtoUtil.vintPrefixed(proxyReply));

      if (copyResponse.getStatus() != SUCCESS) {
        if (copyResponse.getStatus() == ERROR_ACCESS_TOKEN) {
          throw new IOException("Copy block " + block + " from "
              + proxySock.getRemoteSocketAddress()
              + " failed due to access token error");
        }
        throw new IOException("Copy block " + block + " from "
            + proxySock.getRemoteSocketAddress() + " failed");
      }
     
      // get checksum info about the block we're copying
      ReadOpChecksumInfoProto checksumInfo = copyResponse.getReadOpChecksumInfo();
      DataChecksum remoteChecksum = DataTransferProtoUtil.fromProto(
          checksumInfo.getChecksum());
      // open a block receiver and check if the block does not exist
      blockReceiver = new BlockReceiver(
          block, proxyReply, proxySock.getRemoteSocketAddress().toString(),
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    ReadOpChecksumInfoProto ckInfo = ReadOpChecksumInfoProto.newBuilder()
      .setChecksum(DataTransferProtoUtil.toProto(blockSender.getChecksum()))
      .setChunkOffset(blockSender.getOffset())
      .build();
     
    BlockOpResponseProto response = BlockOpResponseProto.newBuilder()
      .setStatus(SUCCESS)
      .setReadOpChecksumInfo(ckInfo)
      .build();
    response.writeDelimitedTo(out);
    out.flush();
  }
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          mirrorOut.flush();

          // read connect ack (only for clients, not for replication req)
          if (isClient) {
            BlockOpResponseProto connectAck =
              BlockOpResponseProto.parseFrom(PBHelper.vintPrefixed(mirrorIn));
            mirrorInStatus = connectAck.getStatus();
            firstBadLink = connectAck.getFirstBadLink();
            if (LOG.isDebugEnabled() || mirrorInStatus != SUCCESS) {
              LOG.info("Datanode " + targets.length +
                       " got response for connect ack " +
                       " from downstream datanode with firstbadlink as " +
                       firstBadLink);
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      /* send request to the proxy */
      new Sender(proxyOut).copyBlock(block, blockToken);

      // receive the response from the proxy
     
      BlockOpResponseProto copyResponse = BlockOpResponseProto.parseFrom(
          PBHelper.vintPrefixed(proxyReply));

      if (copyResponse.getStatus() != SUCCESS) {
        if (copyResponse.getStatus() == ERROR_ACCESS_TOKEN) {
          throw new IOException("Copy block " + block + " from "
              + proxySock.getRemoteSocketAddress()
              + " failed due to access token error");
        }
        throw new IOException("Copy block " + block + " from "
            + proxySock.getRemoteSocketAddress() + " failed");
      }
     
      // get checksum info about the block we're copying
      ReadOpChecksumInfoProto checksumInfo = copyResponse.getReadOpChecksumInfo();
      DataChecksum remoteChecksum = DataTransferProtoUtil.fromProto(
          checksumInfo.getChecksum());
      // open a block receiver and check if the block does not exist
      blockReceiver = new BlockReceiver(
          block, proxyReply, proxySock.getRemoteSocketAddress().toString(),
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    ReadOpChecksumInfoProto ckInfo = ReadOpChecksumInfoProto.newBuilder()
      .setChecksum(DataTransferProtoUtil.toProto(blockSender.getChecksum()))
      .setChunkOffset(blockSender.getOffset())
      .build();
     
    BlockOpResponseProto response = BlockOpResponseProto.newBuilder()
      .setStatus(SUCCESS)
      .setReadOpChecksumInfo(ckInfo)
      .build();
    response.writeDelimitedTo(out);
    out.flush();
  }
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                + Op.BLOCK_CHECKSUM + ", block=" + block);
          }
          // get block MD5
          new Sender(out).blockChecksum(block, lb.getBlockToken());

          final BlockOpResponseProto reply =
            BlockOpResponseProto.parseFrom(HdfsProtoUtil.vintPrefixed(in));

          if (reply.getStatus() != Status.SUCCESS) {
            if (reply.getStatus() == Status.ERROR_ACCESS_TOKEN
                && i > lastRetriedIndex) {
              if (LOG.isDebugEnabled()) {
                LOG.debug("Got access token error in response to OP_BLOCK_CHECKSUM "
                    + "for file " + src + " for block " + block
                    + " from datanode " + datanodes[j].getName()
                    + ". Will retry the block once.");
              }
              lastRetriedIndex = i;
              done = true; // actually it's not done; but we'll retry
              i--; // repeat at i-th block
              refetchBlocks = true;
              break;
            } else {
              throw new IOException("Bad response " + reply + " for block "
                  + block + " from datanode " + datanodes[j].getName());
            }
          }
         
          OpBlockChecksumResponseProto checksumData =
            reply.getChecksumResponse();

          //read byte-per-checksum
          final int bpc = checksumData.getBytesPerCrc();
          if (i == 0) { //first block
            bytesPerCRC = bpc;
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        new Sender(out).transferBlock(block, blockToken, dfsClient.clientName,
            targets);
        out.flush();

        //ack
        BlockOpResponseProto response =
          BlockOpResponseProto.parseFrom(PBHelper.vintPrefixed(in));
        if (SUCCESS != response.getStatus()) {
          throw new IOException("Failed to add a datanode");
        }
      } finally {
        IOUtils.closeStream(in);
        IOUtils.closeStream(out);
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Related Classes of org.apache.hadoop.hdfs.protocol.proto.DataTransferProtos.BlockOpResponseProto

  • org.apache.hadoop.hdfs.BlockReaderFactory
  • org.apache.hadoop.hdfs.DFSClient
  • org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer
  • org.apache.hadoop.hdfs.RemoteBlockReader
  • org.apache.hadoop.hdfs.RemoteBlockReader2
  • org.apache.hadoop.hdfs.server.balancer.Balancer$PendingBlockMove
  • org.apache.hadoop.hdfs.server.datanode.DataXceiver
  • org.apache.hadoop.hdfs.server.datanode.TestBlockReplacement
  • org.apache.hadoop.hdfs.server.datanode.TestTransferRbw
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