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https://issues.apache.org/jira/browse/HDFS-6996?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14122144#comment-14122144
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Jing Zhao commented on HDFS-6996:
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The failed tests should be unrelated. I will commit the patch shortly.
> SnapshotDiff report can hit IndexOutOfBoundsException when there are nested
> renamed directory/file
> --------------------------------------------------------------------------------------------------
>
> Key: HDFS-6996
> URL: https://issues.apache.org/jira/browse/HDFS-6996
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: snapshots
> Affects Versions: 2.5.0
> Reporter: Jing Zhao
> Assignee: Jing Zhao
> Attachments: HDFS-6996.000.patch, HDFS-6996.001.patch
>
>
> Currently when computing snapshot diff report where a renamed file/directory
> is involved, we scan the {{withNameList}} inside of the corresponding
> WithCount node to identify the correct rename target. However, the
> {{withNameList}} can be empty due to snapshot deletion operations thus an
> IndexOutOfBoundsException can be triggered.
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