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From "Konstantin Shvachko (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-1839) SecondaryNameNode should not discard "previous.checkpoint"
Date Fri, 15 Apr 2011 00:14:05 GMT
SecondaryNameNode should not discard "previous.checkpoint"
----------------------------------------------------------

                 Key: HDFS-1839
                 URL: https://issues.apache.org/jira/browse/HDFS-1839
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: name-node
    Affects Versions: 0.20.1
            Reporter: Konstantin Shvachko
             Fix For: 0.22.0


While creating a checkpoint SNN calls {{moveLastCheckpoint()}} twice. As a result directory
"previous.checkpoint" is getting removed. "previous.checkpoint" directory holds the checkpoint
that was created before the current one. It is useful for manual recovery, but nothing else.

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