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Posted to hdfs-dev@hadoop.apache.org by "Tsz Wo (Nicholas), SZE (JIRA)" <ji...@apache.org> on 2012/06/09 03:14:23 UTC

[jira] [Created] (HDFS-3521) Allow namenode to toleration edit log corruption

Tsz Wo (Nicholas), SZE created HDFS-3521:
--------------------------------------------

             Summary: Allow namenode to toleration edit log corruption
                 Key: HDFS-3521
                 URL: https://issues.apache.org/jira/browse/HDFS-3521
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: name-node
            Reporter: Tsz Wo (Nicholas), SZE
            Assignee: Tsz Wo (Nicholas), SZE


HDFS-3479 adds checking for edit log corruption. It uses a fixed UNCHECKED_REGION_LENGTH (=PREALLOCATION_LENGTH) so that the bytes at the end within the length is not checked.  Instead of not checking the bytes, we should check everything and allow toleration.

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[jira] [Resolved] (HDFS-3521) Allow namenode to tolerate edit log corruption

Posted by "Tsz Wo (Nicholas), SZE (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/HDFS-3521?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tsz Wo (Nicholas), SZE resolved HDFS-3521.
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      Resolution: Fixed
    Hadoop Flags: Reviewed
    
> Allow namenode to tolerate edit log corruption
> ----------------------------------------------
>
>                 Key: HDFS-3521
>                 URL: https://issues.apache.org/jira/browse/HDFS-3521
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: name-node
>            Reporter: Tsz Wo (Nicholas), SZE
>            Assignee: Tsz Wo (Nicholas), SZE
>             Fix For: 1.2.0
>
>         Attachments: h3521_20120610_b-1.patch, h3521_20120611_b-1.patch
>
>
> HDFS-3479 adds checking for edit log corruption. It uses a fixed UNCHECKED_REGION_LENGTH (=PREALLOCATION_LENGTH) so that the bytes at the end within the length is not checked.  Instead of not checking the bytes, we should check everything and allow toleration.

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