Tsz Wo (Nicholas), SZE created HDFS-4612:
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Summary: Not to use INode.getParent() when generating snapshot
diff report
Key: HDFS-4612
URL: https://issues.apache.org/jira/browse/HDFS-4612
Project: Hadoop HDFS
Issue Type: Sub-task
Components: namenode
Reporter: Tsz Wo (Nicholas), SZE
Assignee: Tsz Wo (Nicholas), SZE
With rename, an inode may have multiple access paths, i.e. multiple parents.
In such case, INode.getParent() returns the parent in the current state but not
the parents in the snapshots. Therefore, we cannot use INode.getParent() to
generate snapshot diff report.
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