Kai Zheng created HDFS-8901:
-------------------------------

             Summary: Use ByteBuffer/DirectByteBuffer in striping positional 
read
                 Key: HDFS-8901
                 URL: https://issues.apache.org/jira/browse/HDFS-8901
             Project: Hadoop HDFS
          Issue Type: Sub-task
            Reporter: Kai Zheng
            Assignee: Kai Zheng


Native erasure coder prefers to direct ByteBuffer for performance 
consideration. To prepare for it, this change uses ByteBuffer through the codes 
in implementing striping position read. 



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