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From "Tsz Wo (Nicholas), SZE (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HDFS-4800) Fix INodeDirectoryWithSnapshot#cleanDeletedINode
Date Mon, 06 May 2013 22:50:19 GMT

     [ https://issues.apache.org/jira/browse/HDFS-4800?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Tsz Wo (Nicholas), SZE resolved HDFS-4800.
------------------------------------------

       Resolution: Fixed
    Fix Version/s: Snapshot (HDFS-2802)

I have committed this.  Thanks, Jing!
                
> Fix INodeDirectoryWithSnapshot#cleanDeletedINode
> ------------------------------------------------
>
>                 Key: HDFS-4800
>                 URL: https://issues.apache.org/jira/browse/HDFS-4800
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: namenode
>            Reporter: Jing Zhao
>            Assignee: Jing Zhao
>            Priority: Minor
>             Fix For: Snapshot (HDFS-2802)
>
>         Attachments: HDFS-4800.001.patch
>
>
> HDFS-4791 updated and fixed the deletion logic for reference node, but did not update
INodeDirectoryWithSnapshot#cleanDeletedINode. When deleting a snapshot s, after we merge s1
to its prior snapshot s0, cleanDeletedINode is called to destroy the files/directories that
were created after taking snapshot s0. However, if a node is in the deleted list of s1 because
of renaming, we should not destroy the node and its subtree, but just continue the normal
snapshot deletion process.

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