[jira] [Created] (HDFS-5303) A symlink within a snapshot pointing to a target outside the snapshot root can cause the snapshot contents to appear to change.

["Chris Nauroth (JIRA)" <ji...@apache.org>]

Chris Nauroth created HDFS-5303:
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             Summary: A symlink within a snapshot pointing to a target outside the snapshot root can cause the snapshot contents to appear to change.
                 Key: HDFS-5303
                 URL: https://issues.apache.org/jira/browse/HDFS-5303
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: namenode
            Reporter: Chris Nauroth


A snapshot is supposed to represent the point-in-time state of a directory.  However, if the directory contains a symlink that targets a file outside the snapshot root, then the snapshot contents will appear to change if someone changes the target file (i.e. delete or append).



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