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From "Konstantin Shvachko (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HDFS-1509) Resync discarded directories in fs.name.dir during saveNamespace command
Date Thu, 16 Dec 2010 10:18:01 GMT

    [ https://issues.apache.org/jira/browse/HDFS-1509?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12972033#action_12972033
] 

Konstantin Shvachko commented on HDFS-1509:
-------------------------------------------

I did not understand the description for this jira. Eli is mentioning you use edits instead
of image or vice versa. Could you please edit the description to clarify what is proposed.

> Resync discarded directories in fs.name.dir during saveNamespace command
> ------------------------------------------------------------------------
>
>                 Key: HDFS-1509
>                 URL: https://issues.apache.org/jira/browse/HDFS-1509
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: name-node
>            Reporter: dhruba borthakur
>            Assignee: dhruba borthakur
>         Attachments: resyncBadNameDir1.txt, resyncBadNameDir2.txt, resyncBadNameDir3.txt
>
>
> In the current implementation, if the Namenode encounters an error while writing to a
fs.name.dir directory it stops writing new edits to that directory. My proposal is to make
 the namenode write the fsimage to all configured directories in fs.name.dir, and from then
on, continue writing fsedits to all configured directories.

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