[jira] [Created] (HDFS-4809) Add more unit tests for the undo section of rename

["Jing Zhao (JIRA)" <ji...@apache.org>]

Jing Zhao created HDFS-4809:
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             Summary: Add more unit tests for the undo section of rename
                 Key: HDFS-4809
                 URL: https://issues.apache.org/jira/browse/HDFS-4809
             Project: Hadoop HDFS
          Issue Type: Sub-task
            Reporter: Jing Zhao
            Assignee: Jing Zhao
            Priority: Minor


1. Add more unit tests for the undo section of rename

2. Fix a bug in FSDirectory#addChild: if a QuotaExceededException is thrown in {code}parent.addChild(child, true, iip.getLatestSnapshot(), inodeMap);{code}
we should change the quota usage back.



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