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https://issues.apache.org/jira/browse/HDFS-1897?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Todd Lipcon resolved HDFS-1897.
-------------------------------

      Resolution: Fixed
    Hadoop Flags: [Reviewed]

Committed to trunk and 0.22, thanks Andrew!

> Documention refers to removed option dfs.network.script
> -------------------------------------------------------
>
>                 Key: HDFS-1897
>                 URL: https://issues.apache.org/jira/browse/HDFS-1897
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: documentation
>    Affects Versions: 0.20.2, 0.21.0, 0.22.0
>            Reporter: Ari Rabkin
>            Assignee: Andrew Whang
>            Priority: Minor
>              Labels: newbie
>             Fix For: 0.22.0
>
>         Attachments: HDFS-1897.patch
>
>
> The HDFS user guide tells users to use dfs.network.script for rack awareness. 
> In fact, this option has been removed and using it will trigger a fatal error 
> on DataNode startup. Documentation should describe the current rack awareness 
> configuration system.

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