modify SparkDDFManager
modify SparkDDFManager

ubolonton/DDF,phvu/DDF,phvu/DDF,ddf-project/DDF,hsaputra/DDF,phvu/DDF,hsaputra/DDF,ddf-project/DDF,ddf-project/DDF,ubolonton/DDF,ubolonton/DDF,phvu/DDF,hsaputra/DDF,hsaputra/DDF,ubolonton/DDF,ddf-project/DDF,ddf-project/DDF,phvu/DDF,hsaputra/DDF,ubolonton/DDF