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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-1509) Resync discarded directories in fs.name.dir during saveNamespace command
Date Wed, 20 Apr 2011 23:33:08 GMT

    [ https://issues.apache.org/jira/browse/HDFS-1509?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13022431#comment-13022431
] 

Hudson commented on HDFS-1509:
------------------------------

Integrated in Hadoop-Hdfs-trunk #643 (See [https://builds.apache.org/hudson/job/Hadoop-Hdfs-trunk/643/])
    

> 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
>             Fix For: 0.23.0
>
>         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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