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From "Tsz Wo (Nicholas), SZE (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-4076) Support snapshot of single files
Date Fri, 19 Oct 2012 00:34:03 GMT
Tsz Wo (Nicholas), SZE created HDFS-4076:
--------------------------------------------

             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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