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From "Aaron T. Myers (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-4076) Support snapshot of single files
Date Fri, 19 Oct 2012 06:34:03 GMT

    [ https://issues.apache.org/jira/browse/HDFS-4076?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13479658#comment-13479658
] 

Aaron T. Myers commented on HDFS-4076:
--------------------------------------

Can I please have a few days to review this code and the updated design doc? Thanks.

Also, I assume that this will be checked into the HDFS-2802 branch? If so, I think we should
create an "HDFS-2802" fix version and set that as the target/fix version for the sub-tasks
of HDFS-2802. If you guys agree, I can take care of that.
                
> Support snapshot of single files
> --------------------------------
>
>                 Key: HDFS-4076
>                 URL: https://issues.apache.org/jira/browse/HDFS-4076
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: name-node
>            Reporter: Tsz Wo (Nicholas), SZE
>            Assignee: Tsz Wo (Nicholas), SZE
>         Attachments: h4076_20121018.patch
>
>
> The snapshot of a file shares the blocks with the original file in order to avoid copying
data.  However, the snapshot file has its own metadata so that it could have independent permission,
replication, access time, etc.

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