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From "Jing Zhao (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-6996) SnapshotDiff report can hit IndexOutOfBoundsException when there are nested renamed directory/file
Date Thu, 04 Sep 2014 23:08:24 GMT

    [ https://issues.apache.org/jira/browse/HDFS-6996?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14122144#comment-14122144
] 

Jing Zhao commented on HDFS-6996:
---------------------------------

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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