Yi Liu created HDFS-8398:
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             Summary: Erasure Coding: Correctly calculate last striped block 
length if it's under construction.
                 Key: HDFS-8398
                 URL: https://issues.apache.org/jira/browse/HDFS-8398
             Project: Hadoop HDFS
          Issue Type: Sub-task
            Reporter: Yi Liu
            Assignee: Yi Liu


Currently, for continuous block, if it's under construction, we need to read 
the block replica length from one of datanode and use it as last block length.

For striped block, we need to read the length of all internal data blocks of 
the striped group, then add them correctly.



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