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Posted to common-dev@hadoop.apache.org by "Lohit Vijayarenu (JIRA)" <ji...@apache.org> on 2008/07/19 02:50:31 UTC

[jira] Issue Comment Edited: (HADOOP-3795) NameNode does not save image if different dfs.name.dir have different checkpoint stamps

    [ https://issues.apache.org/jira/browse/HADOOP-3795?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12614926#action_12614926 ] 

lohit edited comment on HADOOP-3795 at 7/18/08 5:49 PM:
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Is is OK to say that checkpoint would be same across all dirs? If so, here is a patch which forces saving of image, if there is a difference in checkpoint times. I tested this manually for the case described above, and it forces saving of good image back on all dfs.name.dir

      was (Author: lohit):
    Is is OK to say that checkpoint would be same across all dirs? If so, here is a patch which forces saving of image, if there is a difference in checkpoint times.
  
> NameNode does not save image if different dfs.name.dir have different checkpoint stamps
> ---------------------------------------------------------------------------------------
>
>                 Key: HADOOP-3795
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3795
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: dfs
>    Affects Versions: 0.19.0
>            Reporter: Lohit Vijayarenu
>         Attachments: HADOOP-3795-1.patch
>
>
> There is a case where namenode does not save image file during startup even if their checkpoint times are different. 

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