Rui Li created HDFS-9603:
----------------------------

             Summary: Erasure Coding: Use ErasureCoder to encode/decode a block 
group
                 Key: HDFS-9603
                 URL: https://issues.apache.org/jira/browse/HDFS-9603
             Project: Hadoop HDFS
          Issue Type: Sub-task
            Reporter: Rui Li
            Assignee: Rui Li


According to design, {{ErasureCoder}} is responsible to encode/decode a block 
group. Currently however, we directly use {{RawErasureCoder}} to do the work, 
e.g. in {{DFSStripedOutputStream}}. This task attempts to encapsulate 
{{RawErasureCoder}} to comply with the design.



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