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From "Tsz Wo (Nicholas), SZE (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-4666) Disallow users to create file/dir named ".snapshot"
Date Mon, 15 Apr 2013 21:44:16 GMT

     [ https://issues.apache.org/jira/browse/HDFS-4666?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Tsz Wo (Nicholas), SZE updated HDFS-4666:

     Component/s:     (was: datanode)
    Release Note: This is an INCOMPATIBLE CHANGE: ".snapshot" becomes a reserved inode name
so that users cannot create a file/directory with ".snapshot" as the name.  If ".snapshot"
is used in a previous version of HDFS, it must be renamed before upgrade; otherwise, upgrade
will fail. 
    Hadoop Flags: Incompatible change,Reviewed

(Added release note.)
> 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: 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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