BREAKDOWN OF HADOOP-11264 SUBTASKS AND RELATED JIRAS (Common part of HDFS-7285) HADOOP-11514. Raw Erasure Coder API for concrete encoding and decoding (Kai Zheng via umamahesh) HADOOP-11534. Minor improvements for raw erasure coders ( Kai Zheng via vinayakumarb ) HADOOP-11541. Raw XOR coder ( Kai Zheng )