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 )

    HADOOP-11542. Raw Reed-Solomon coder in pure Java. Contributed by Kai Zheng
    ( Kai Zheng )

    HADOOP-11643. Define EC schema API for ErasureCodec. Contributed by Kai Zheng
    ( Kai Zheng )

    HADOOP-11646. Erasure Coder API for encoding and decoding of block group
    ( Kai Zheng via vinayakumarb )

    HADOOP-11705. Make erasure coder configurable. Contributed by Kai Zheng
    ( Kai Zheng )

    HADOOP-11706. Refine a little bit erasure coder API. Contributed by Kai Zheng
    ( Kai Zheng )

    HADOOP-11707. Add factory to create raw erasure coder. Contributed by Kai Zheng
    ( Kai Zheng )

    HADOOP-11647. Reed-Solomon ErasureCoder. Contributed by Kai Zheng
    ( Kai Zheng )

    HADOOP-11782 Correct two thrown messages in ECSchema class. Contributed by Xinwei Qin
    ( Xinwei Qin via Kai Zheng )

    HADOOP-11740. Combine erasure encoder and decoder interfaces (Zhe Zhang)

    HADOOP-11805 Better to rename some raw erasure coders. Contributed by Kai Zheng
    ( Kai Zheng )

    HADOOP-11645. Erasure Codec API covering the essential aspects for an erasure code
    ( Kai Zheng via vinayakumarb )
  
    HADOOP-11818. Minor improvements for erasurecode classes. (Rakesh R via Kai Zheng)

    HADOOP-11841. Remove unused ecschema-def.xml files.  (szetszwo)

    HADOOP-11921. Enhance tests for erasure coders. (Kai Zheng via Zhe Zhang)

    HADOOP-11920. Refactor some codes for erasure coders. (Kai Zheng via Zhe Zhang)

    HADOOP-11566. Add tests and fix for erasure coders to recover erased parity 
    units. (Kai Zheng via Zhe Zhang)

    HADOOP-11938. Enhance ByteBuffer version encode/decode API of raw erasure 
    coder. (Kai Zheng via Zhe Zhang)

    HADOOP-12013. Generate fixed data to perform erasure coder test. (Kai Zheng)

    HADOOP-12029. Remove chunkSize from ECSchema as its not required for coders
    (vinayakumarb)

    HADOOP-11847. Enhance raw coder allowing to read least required inputs in decoding.
    (Kai Zheng)

    HADOOP-12011. Allow to dump verbose information to ease debugging in raw erasure coders
    (Kai Zheng)

    HADOOP-12065. Using more meaningful keys in EC schema. (Kai Zheng)

    HDFS-8557. Allow to configure RS and XOR raw coders (Kai Zheng)