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Posted to hdfs-dev@hadoop.apache.org by "Tsz Wo (Nicholas), SZE (JIRA)" <ji...@apache.org> on 2012/10/19 02:34:03 UTC
[jira] [Created] (HDFS-4076) Support snapshot of single files
Tsz Wo (Nicholas), SZE created HDFS-4076:
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Summary: 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
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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[jira] [Resolved] (HDFS-4076) Support snapshot of single files
Posted by "Tsz Wo (Nicholas), SZE (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HDFS-4076?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Tsz Wo (Nicholas), SZE resolved HDFS-4076.
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Resolution: Fixed
Fix Version/s: HDFS-2802
Hadoop Flags: Reviewed
I have committed this.
> 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
> Fix For: HDFS-2802
>
> Attachments: h4076_20121018.patch, h4076_20121019.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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