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From "Aaron T. Myers (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-4666) Disallow users to create file/dir named ".snapshot"
Date Mon, 15 Apr 2013 19:58:16 GMT

    [ https://issues.apache.org/jira/browse/HDFS-4666?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13632097#comment-13632097

Aaron T. Myers commented on HDFS-4666:

Sounds fine to me to do it in a separate JIRA if we later decide it's necessary. I think automatic
rename with a WARN printed in the log when upgrading is the best option, but this implementation
+ a release note is fine for now. 
> Disallow users to create file/dir named ".snapshot"
> ---------------------------------------------------
>                 Key: HDFS-4666
>                 URL: https://issues.apache.org/jira/browse/HDFS-4666
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: datanode, namenode
>            Reporter: Jing Zhao
>            Assignee: Tsz Wo (Nicholas), SZE
>         Attachments: editsStored, h4666_20130413b.patch, h4666_20130413.patch, h4666_20130415.patch
> Currently ".snapshot" is reserved by snapshots as a special tag to specify the path leading
to snapshot copies. We should disallow users to create file/dir using name ".snapshot".

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