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From "Tanping Wang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-1881) After taking snapshot (upgrade) on Federation, the current directory of data node is emtpy.
Date Tue, 03 May 2011 21:49:05 GMT
After taking snapshot (upgrade) on Federation,  the current directory of data node is emtpy.
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                 Key: HDFS-1881
                 URL: https://issues.apache.org/jira/browse/HDFS-1881
             Project: Hadoop HDFS
          Issue Type: Bug
            Reporter: Tanping Wang
            Assignee: Tanping Wang


After taking a snapshot in Federation (by starting up namenode with option -upgrade), it appears
that the current directory of data node does not contain the block files.  We have also verified
that upgrading from 20 to Federation does not have this problem.

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