core/src/main/java/com/twitter/elephantbird/mapreduce/input/LzoRecordReader.java
@Override
  public float getProgress() {
    if (start_ == end_) {
      return 0.0f;
    } else {
      return Math.min(1.0f, (pos_ - start_) / (float) (end_ - start_));
    }
  }
@Override
  public float getProgress() {
    if (start_ == end_) {
      return 0.0f;
    } else {
      return Math.min(1.0f, (pos_ - start_) / (float) (end_ - start_));
    }
  }
Get the progress within the split.