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From "Suresh Srinivas (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-4076) Support snapshot of single files
Date Fri, 19 Oct 2012 06:48:04 GMT

    [ https://issues.apache.org/jira/browse/HDFS-4076?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13479665#comment-13479665
] 

Suresh Srinivas commented on HDFS-4076:
---------------------------------------

bq. If so, I think we should create an "HDFS-2802" fix version 
Good idea. Create one and changed this jira appropriately.

As regards to waiting for this code to be checked in, I think this is being done incrementally
instead of one big jumbo patch. There are other patches dependent on this and waiting for
couple of days impedes progress. As we did in other feature branches if you miss out on reviewing
individual patches, you get time to review it during merge time. Also please feel free to
comment after the fact. It will be taken care of.
                
> 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
>    Affects Versions: HDFS-2802
>            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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