[jira] [Created] (HDFS-9522) Cleanup DiffReportEntry

[John Zhuge (JIRA)]

John Zhuge created HDFS-9522:
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             Summary: Cleanup DiffReportEntry
                 Key: HDFS-9522
                 URL: https://issues.apache.org/jira/browse/HDFS-9522
             Project: Hadoop HDFS
          Issue Type: Improvement
            Reporter: John Zhuge
            Assignee: John Zhuge
            Priority: Minor


The current DiffReportEntry is a C-style tagged union-like data structure.  
Recommend subclass hierarchy as in Java idiom.




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