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From "John George (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-1845) symlink comes up as directory after namenode restart
Date Mon, 18 Apr 2011 18:41:11 GMT
symlink comes up as directory after namenode restart
----------------------------------------------------

                 Key: HDFS-1845
                 URL: https://issues.apache.org/jira/browse/HDFS-1845
             Project: Hadoop HDFS
          Issue Type: Bug
    Affects Versions: 0.22.0
            Reporter: John George
            Assignee: John George


When a symlink is first created, it get added to EditLogs. When namenode is restarted, it
reads from this editlog and represents a symlink correctly and saves this information to its
image. If the namenode is restarted again, it reads its from this FSImage, but thinks that
a symlink is a directory. This is because it uses "Block[] blocks" to determine if an INode
is a directory, a file, or symlink. Since both a directory and a symlink has blocks as null,
it thinks that a symlink is a directory.

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