code: @Override
    public boolean delete(Path path, boolean recursive) throws IOException {
      LOG.debug("delete({}, {})", path, recursive);
      if (mStatistics != null) {
        mStatistics.incrementWriteOps(1);
      }
      AlluxioURI uri = new AlluxioURI(HadoopUtils.getPathWithoutScheme(path));
      DeletePOptions options = DeletePOptions.newBuilder().setRecursive(recursive).build();
      try {
        mFileSystem.delete(uri, options);
        return true;
      } catch (InvalidPathException | FileDoesNotExistException e) {
        LOG.warn("delete failed: {}", e.getMessage());
        return false;
      } catch (AlluxioException e) {
        throw new IOException(e);
      }
    }
docs: Attempts to delete the file or directory with the specified path.
  
  @param path path to delete
  @param recursive if true, will attempt to delete all children of the path
  @return true if one or more files/directories were deleted; false otherwise