RDD: comments + map_partitions
RDD: comments + map_partitions

ondra-m/ruby-spark,tomz/ruby-spark,tomz/ruby-spark,ondra-m/ruby-spark,tomz/ruby-spark,tomz/ruby-spark,ondra-m/ruby-spark,ondra-m/ruby-spark,ondra-m/ruby-spark,tomz/ruby-spark,ondra-m/ruby-spark,tomz/ruby-spark