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From "Tsz Wo (Nicholas), SZE (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (HDFS-1684) Federation: Balancer cannot start with with multiple namenodes.
Date Thu, 03 Mar 2011 18:06:37 GMT

     [ https://issues.apache.org/jira/browse/HDFS-1684?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Tsz Wo (Nicholas), SZE resolved HDFS-1684.
------------------------------------------

       Resolution: Fixed
    Fix Version/s: Federation Branch
     Hadoop Flags: [Reviewed]

I have committed this.

> Federation: Balancer cannot start with with multiple namenodes.
> ---------------------------------------------------------------
>
>                 Key: HDFS-1684
>                 URL: https://issues.apache.org/jira/browse/HDFS-1684
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: balancer
>    Affects Versions: Federation Branch
>            Reporter: Tsz Wo (Nicholas), SZE
>            Assignee: Tsz Wo (Nicholas), SZE
>             Fix For: Federation Branch
>
>         Attachments: 4342723.patch, h1684_20110302.patch
>
>
> The balancer creates the file when it starts; and delete the files when it finishes.
 The default FileSystem is used for all NameNodes.  So only the first one will succeed creating
the
> id file but the following will fail.

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