Package org.apache.hadoop.hdfs.server.datanode.BlockDataFile

Examples of org.apache.hadoop.hdfs.server.datanode.BlockDataFile.RandomAccessor.seek()

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    try {
      // truncate blockFile
      ra.setLength(newlen);

      // read last chunk
      ra.seek(lastchunkoffset);
      ra.readFully(b, 0, lastchunksize);
    } finally {
      ra.close();
    }
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            newBlockLen - lastchunksize, bytesPerChecksum, checksumSize);

        byte[] b = new byte[Math.max(lastchunksize, checksumSize)];

        // read last chunk
        ra.seek(lastchunkoffset);
        ra.readFully(b, 0, lastchunksize);

        // compute checksum
        dcs.update(b, 0, lastchunksize);
        dcs.writeValue(b, 0, false);
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        // compute checksum
        dcs.update(b, 0, lastchunksize);
        dcs.writeValue(b, 0, false);

        ra.seek(newBlockFileSize - checksumSize);
        ra.write(b, 0, checksumSize);
      }
    } finally {
      ra.close();
    }
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