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Date: Mon, 15 Apr 2013 17:56:16 +0000 (UTC)
From: "Jing Zhao (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
Message-ID: <JIRA.12640621.1365024691706.168481.1366048576604@arcas>
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Subject: [jira] [Commented] (HDFS-4666) Disallow users to create file/dir
 named ".snapshot"
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    [ https://issues.apache.org/jira/browse/HDFS-4666?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13631931#comment-13631931 ] 

Jing Zhao commented on HDFS-4666:
---------------------------------

The current patch looks good to me. One issue is that we may also need to check the name in FSImageFormat#loadINodeWithLocalName (if the new version supports snapshot).
                
> 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: h4666_20130413b.patch, h4666_20130413.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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