[jira] [Created] (HDFS-15520) Use visitor pattern to visit namespace tree

[Tsz-wo Sze (Jira)]

Tsz-wo Sze created HDFS-15520:
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             Summary: Use visitor pattern to visit namespace tree
                 Key: HDFS-15520
                 URL: https://issues.apache.org/jira/browse/HDFS-15520
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: namenode
            Reporter: Tsz-wo Sze
            Assignee: Tsz-wo Sze






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