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From "Hairong Kuang (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HDFS-1481) NameNode should validate fsimage before rolling
Date Tue, 23 Nov 2010 07:08:17 GMT

     [ https://issues.apache.org/jira/browse/HDFS-1481?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Hairong Kuang updated HDFS-1481:
--------------------------------

       Resolution: Fixed
    Fix Version/s:     (was: 0.22.0)
                   0.23.0
           Status: Resolved  (was: Patch Available)

> 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: 0.23.0
>
>         Attachments: trunkValidateUpload.patch, trunkValidateUpload1.patch
>
>
> 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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