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From "Hairong Kuang (JIRA)" <j...@apache.org>
Subject [jira] Created: (HDFS-1481) NameNode should validate fsimage before rolling
Date Wed, 27 Oct 2010 01:00:20 GMT
NameNode should validate fsimage before rolling

                 Key: HDFS-1481
                 URL: https://issues.apache.org/jira/browse/HDFS-1481
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: name-node
    Affects Versions: 0.22.0
            Reporter: Hairong Kuang
            Assignee: Hairong Kuang
             Fix For: 0.22.0

We had an incident that the fsimage at secondary NameNode was truncated but got uploaded to
the primary NameNode. The primary NameNode simply rolled the image without checking its integrity,
therefore causing the fsimage to corrupt. The primary NameNode should check the new image's
integrity before rolling fsimage.

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